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CD RECEIVER

KDC-W237AY/W237GY KDC-W3037AY/W3037GY KDC-W311AY/W311GY KDC-W3537AY/W3537GY/W4037Y SERVICE MANUAL
Panel assy KDC-W237AY/W237GY (A64-4058-02)

© 2006-12 PRINTED IN JAPAN B53-0483-00 (N) 229

Panel assy KDC-W3037AY/W3037GY (A64-4056-12)

B.BOOST MENU

B.BOOST MENU

KDC-W237
VOL AUD SET UP

/ DISP

KDC-W3037
VOL AUD SET UP

/ PTY DISP

FM
SCRL

FM
SCRL

AM
AUTO AME SCAN RDM REP F.SEL
TI AME

AM
SCAN RDM REP F.SEL

ATT

ATT

Panel assy KDC-W311AY/W311GY (A64-4057-12)

Panel assy KDC-W3537AY/W3537GY (A64-4042-12)

B.BOOST MENU

KDC-W311
VOL AUD SET UP

/ PTY DISP

B.BOOST MENU

FM
SCRL VOL AUD SET UP

KDC-W3537

/ PTY DISP

FM
SCRL

AM
TI AME

AM
TI AME

SCAN

RDM

REP

F.SEL

SCAN

RDM

REP

F.SEL

M.RDM

ATT

ATT

Panel assy KDC-W4037Y (A64-4038-12)

B.BOOST MENU

KDC-W4037
VOL AUD SET UP

/ PTY DISP

FM
SCRL

SW

AM
TI AME

SCAN

RDM

REP

F.SEL

M.RDM

ATT

SPARE TDF PANEL MAIN UNIT NAME KDC-W237AY KDC-W237GY KDC-W3037AY KDC-W3037GY KDC-W311AY KDC-W311GY KDC-W3537AY KDC-W3537GY KDC-W4037Y Carrying case (W01-1685-05)

TDF PARTS No. Y33-2660-60 Y33-2660-61 Y33-2650-63 Y33-2650-64 Y33-2650-65 Y33-2650-66 Y33-2650-61 Y33-2650-62 Y33-2650-60

TDF NAME TDF-W237A TDF-W237G TDF-W3037A TDF-W3037G TDF-W311A TDF-W311G TDF-W3537A TDF-W3537G TDF-W4037

Lever (D10-4589-04) x2

DC cord (E30-6427-05)

* Remote controller assy (RC-557) (A70-2087-05)

Battery (Not supplied)

Antenna adaptor (T90-0523-05)

* Escutcheon (B07-xxxx-xx)

Mounting hardware assy (J21-9716-03)

* Depends on the model. Refer to the parts list.
This product uses Lead Free solder.

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

PAN5V CN3 WIRED REMOTE J3 CN to GND PANEL DET IC1 S3 RESET J2 F-AUX S1 ROTARY ENCODER SW5 IC2 REMOTE SW5
9

ILLUMI+B

SW5

2
ELECTRIC UNIT (X34- )
J2 ANT. A1 TUNER FRONT-END
3

Q901-903 J4 DME1 BU BU A8V SERVO+B CD MECHA
16 3 1

DC-DET BU IC6 POWER IC
ACC DET PHONE R103

AM+B LX-BUS A8V SW5

PHONE Q101 ACC-DET Q103

BU5

IC9 ANALOG SW IC2 or IC3 A8V

Q401 SW CONT A8V
1

BU DET 1

BU-DET Q102 SURGEDET IC4

BU5 J1 DC-CN
PHONE SP-OUT ACC B.U. P-ANT P-CON

MUTE 1

Q701-704 PRE-OUT MUTE BU5 BU5 Q705 BU5
9

CN4,J5 PRE-OUT
FRONT/ REAR/SW

SW5

IC7 RDS DECODER
3 3 8

A8V
ROM CORRECTION (NOT USED)

E-VOL

BLOCK DIAGRAM

IC10 SW5 E2PROM
2 1 1 PS1-1 / PS1-2 / PS1-3 PS2-1 / PS2-2 BU DET

IC1

MUTE
1

FL+B AM+B SW5 A8V POWER SUPPLY IC

RST

SYSTEM u-COM

DC-CN etc IC8 BU5 RESET IC
1 1 2 1 1 5

Q301
R11-15

1/2W Rx5

FL+B

1

PHONE ACC DET / BU DET P.ON FL PS1-1 / PS1-2 / PS1-3 PS2-1 / PS2-2

SW5 D5 BU5

Q302 DSI BU5 SERVO+B

Q2 CD SERVO Q1 SW14V

BU5

J1

R80-82

SW5

1/2W Rx3

FL+B

Q8,9 ILLUMI+B ILLUMI +B Q7 SW14V

ED1 VFD
2

VFD DRIVER

P.ON FL

KEY ILLUMI KEY MATRIX

SWITCH UNIT (X16- )

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

BLOCK DIAGRAM
CD PLAYER UNIT (X32-597x-xx) DPU1
Q1 E A B C F APC IC4
SIGNAL A,B,C,E,F LD SI BUCK SRAMSTB SO

Q11 LEVEL SHIFT Q12 LEVEL SHIFT Q10
CCE PIO0

MOTHER BOARD (X34- )
SRAMSTB SO

SI BUCK

VREF

IC3 FO COIL TR COIL
FO OUT TR OUT FO OUT TR OUT DM OUT FM OUT

DM1 LOADING & SPINDLE MOTOR DM2 LOADING & SLED MOTOR

MOTOR DRIVER
DM OUT

RF AMP + SERVO PROCESSOR + MP3 DECODER + WMA DECODER + AAC DECODER + 1M bit SRAM

LEVEL SHIFT
R246,247

CCE PIO0

MRST

LEVEL SHIFT
C87,R83

MRST

L-ch

CR FILTER
C88,R82

L-ch

R-ch

CR FILTER Q13

R-ch

ZDET

REVERSAL CIRCUIT IC7 3.3V REG IC5 SW1.5V REG

MUTE L/R

SW3.3V

SW1.5V

BU1.5V

D GND

FM OUT

A3.3V AGND

A8V A.GND BU5V P.ON

CLOCK 16.934MHz

X1 IC6

SW3.3V REG IC11 BU1.5V REG
D.GND

S1
LOS-SW

S2
12EJE-SW

S3
LOE-SW

(0-01) ONLY

S4
8EJE-SW DRV MUTE LO/EJ MOTOR S7.5V S.GND

3

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

COMPONENTS DESCRIPTION
ELECTRIC UNIT (X34-467x-xx)
Ref. No. IC1 IC2,3 IC4 IC6 IC7 IC8 IC9 Q1 Q2 Q3 Q7 Q8 Q9 Q101 Q102 Q103 Q104,105 Q301 Q302 Q401 Q402 Q701,702 Q705 Q901 Q902,903 Application / Function System µ-COM E-VOL Power Supply IC Power IC RDS IC Reset IC Analog SW SW14V Servo+B AVR Control SW for Servo+B VFD+B SW VFD+B AVR Control SW for VFD+B ACC DET Serge DET BU DET Mute Control Panel 5V SW DSI ILLUMI SW IC9 Control SW Quick Charge Voltage SW Pre-out Mute SW Mute Driver for Pre-out DC Offset DET DC Offset DET SW Operation / Condition / Compatibility Controls FM/AM tuner, the changer, CD mechanism, panel, volume and tone. Controls the source, volume and tone. Outputs 5Vx2, 8.1Vx2, 10.2V, P-CON and P-ANT. Amplifies the front L/R and the rear L/R to 50W or 45W maximum. RDS decoder. Lo when detection voltage goes below 3.6V. Multiplex triple 2-channel analog SW. ON when the base goes Hi. When Q3's base goes Hi, Servo+B AVR outputs 7.5V. ON when the base goes Hi. ON when the base goes Hi. When Q9's base goes Hi, Servo+B AVR outputs 10.5V. ON when the base goes Hi. ON when the base goes Hi during ACC is applied. When the base goes Hi, surge voltage is detected. ON when the base goes Hi during BU is applied. ON when the base goes Hi. ON when the base goes Lo. ON when the base goes Hi. Switches to AUX when the base goes Hi, and switches to LX-BUS (CD-CH) when the base goes Lo. Charges voltage quickly when the base goes Hi. When a base of the 4 transistors goes Hi, pre-out is muted. ON when the base goes Lo. ON when the base goes Hi after Q902's and Q903's outputs are separated. ON when the bases go Lo after IC6's SP-OUTs (DC) are separated.

SWITCH UNIT (X16-386x-xx)
Ref. No. IC1 IC3 Q1 Q2 Application / Function VFD Driver Remote Control Sensor GREEN LED SW RED LED SW ON when the base goes Hi. ON when the base goes Hi. Operation / Condition / Compatibility

CD PLAYER UNIT (X32-5970-00)
Ref. No. IC3 IC4 IC5 Application / Function 4ch BTL Driver loading & ejection. Servo DSP with built-in Audio DAC D1.5V REG. With built-in MP3/WMA/AAC decoder and 1M-bit-SRAM. Power supply for digital 1.5V. Operation / Condition / Compatibility Driver for focusing & tracking coil, driver for sled & spindle motor, and operation for disc

4

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

COMPONENTS DESCRIPTION
Ref. No. IC6 IC7 IC11 Q1 Q10~12 Q13 D1 D2 D3,4 Application / Function D3.3V REG. A3.3V REG. BU1.5V REG. APC (Auto Power Control) 5V­3.3V Level Shift Inverter Level Down surely becomes Lo judgment level of the regulator SW. Laser Diode Protection Static Electricity Countermeasure Prevents reverse bias which is applied to laser. Laser destruction prevention. Prevents malfunction by static electricity. Operation / Condition / Compatibility Power supply for digital 3.3V. Power supply for audio 3.3V. Power supply for back-up 1.5V. Drives LD (Laser Diode). Converts signal from 5V to 3.3V, or from 3.3V to 5V. Inverts ZDET signal. Lowers signal level by about 1.2V so that Lo level signal that turns the regulator ON/OFF

MICROCOMPUTER'S TERMINAL DESCRIPTION
SYSTEM µ-COM: IC1 on X34- (ELECTRIC UNIT)
Pin No. 1 2 3~5 6 7 8 9 10 11 12 13 14 15 16 17 18 19,20 21 22,23 Pin Name LX DATA M LX CLK NC REMO NC BYTE CNVSS XCIN XCOUT RESET XOUT VSS XIN VCC1 NMI PANEL DET NC ROMCOR DET NC I/O I/O I/O I I I I I Panel communication detection Not used E2PROM writing request Not used Connects to VSS H: Panel detached, L: Panel attached Output L fixed H: Writing Output L fixed 10.0MHz 10.0MHz 32.768kHz 32.768kHz L: Reset Application Data to slave unit LX-BUS clock Not used Remote control signal input Not used Memory extended bus width setting Truth Value Table Processing Operation Description Pull-down (GND) 125k~65kHz Output Lo fixed Detects pulse width Output L fixed Connects to VSS Connects to VSS

5

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51~53 54 55 56 57 58 59 60 61 62 Pin Name PON FL NC PON PANEL NC PWIC BEEP AUD SCL AUD SDA VFD SYS DATA VFD PAN DATA VFD CLK VFD BLK CD SI CD SO CD CLK CD LOS SW PIO0 CD SRAMSTB EPM CD LOE LIM SW PON CD CD LOEJ CD MOTOR VFD CE CD DRIVEMUTE CD CCE CD DISC8 SW CD MRST NC CD MUTE CD DISC12 SW ROTARY CCW ROTARY CW NC DSI RDS DATA RDS QUAL VCC2 I/O O I/O O I/O I/O O I O O O I O I I O I I O I/O I/O O O O I O I I I I I/O I I Application Key illumination power supply control Not used ON: L, Momentary power down/Panel detached Panel 5V control : Hi-Z, 11 minutes after ACC OFF: Hi-Z Not used Beep output E-VOL clock output E-VOL data input/output VFD data output VFD data input VFD clock output VFD data blanking output /Panel detached: L, 11 minutes after ACC OFF: L CD mechanism serial output CD mechanism serial input Serial clock output CD loading detection Communication request from mechanism DSP 1M-bit SRAM standby Flash EPM input CD detection (Chucking SW) CD mechanism power supply control CD motor control CD motor control VFD control request Motor driver mute output CD mechanism chip enable 8cm disc detection CD mechanism µ-com reset Not used CD mute request 12cm disc detection VOL key input VOL key input Not used DSI control RDS decoder data input RDS decoder QUAL input Pull-up (B.U.) H: Normal, L: Reset Output L fixed L: Mute request Pull-up (B.U.) Detects pulse width Detects pulse width Output L fixed OFF: Hi-z, Panel detached: Pulse drives, ON: H q q H: Data request H: SRAM standby Connects to VSS H: Loading completed, L: No disc H: Power ON Refer to the truth value table Refer to the truth value table 1MHz 125kHz H: Reset cancelled, L: Reset, Momentary power down Output L fixed Truth Value Table Processing Operation Description ON: H, OFF: L

6

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 Pin Name NC VSS RDS AFS M TUN IFC OUT I/O I/O I Noise detection time constant switching Front-end IFC-OUT input IC2 external input quick charge control Hi-Z, Mute L: L, Momentary power down/Power OFF: L MUTE ANALOG CON LX RST LX CON LX MUTE LX REQ M RDS CLK LX REQ S PWIC SVR PWIC STBY PWIC MUTE ACC DET I/O O O O I O I I O O O I Mute AUX/LX audio switching begins to work), LX/Other source: L Forced reset to slave unit Start-up request to slave unit Mute request from slave unit Communication request to slave unit RDS decoder clock input Communication request from slave unit SVR discharging circuit Since then: L Power IC standby control Power IC mute TEL mute: L ACC power supply detection ACC found: L, No ACC: H BU found: L, No BU/Momentary power down: H 80 BU DET I Detection of momentary power down (Operates after less than 4ms after momentary power down is detected) 81,82 83 84 85 86 87 88 89 90 91 92 93 94 95 NC RDS NOISE TUN SMETER TYPE1 TYPE2 PWIC DC DET LINE MUTE OFFSET DET PS2 2 PS2 1 PS1 1 PS1 2 PS1 3 PON O I I I I I I I O O O O O Not used FM noise detection S-meter input Destination switching Destination switching DC offset detection of over 1.0V, it will be judged as DC offset detected. Line mute selection Power IC offset detection Power supply IC control Power supply IC control Power supply IC control Power supply IC control Power supply IC control Not used r r r r r Refer to the truth value table Refer to the truth value table Refer to the truth value table Refer to the truth value table Refer to the truth value table POWER ON: H, POWER OFF: L TEL mute: Below 1V, NAVI mue: Over 2.5V e e Refer to the truth value table Refer to the truth value table If DC offset is found 20 times in 100ms with condition Output L fixed Power ON: H, Power OFF: L STANDBY source/Momentary power down: L, Pull-down (GND) During 500ms after momentary power down: H, H: Reset, L: Normal H: Slave unit ON, L: Slave unit OFF H: Mute ON, L: Mute OFF L: Mute OFF, Hi-Z: Mute ON AUX: H (Switches after 100ms after first-out mute w Refer to the truth value table H: Station found, L: No station L: OFF, Hi-Z: Quick charge, When IC2 is in source select: PON EXT GND I/O Not used Application Truth Value Table Processing Operation Description Output L fixed

7

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. 96 97 98 99 100 Pin Name AVSS REF CON VREF AVCC LX DATA S I/O O I Data from slave unit Pull-down (GND) VREF control Connects to VREF Application Truth Value Table Processing Operation Description

· Truth value table
q CD motor control CD motor Stop Load Eject Brake L H H H CD loading/eject L L H Hi-z r Power supply IC (IC4) control SEL1 (Pin 10) PS1-2 L L H H w AFS control RDS AFS M AFS MID AFS HIGH L Hi-Z Condition Except AF search, seeking or tuner source Normal reception SEL2 (Pin 11) PS1-1 L H e Destination switching TYPE 2 (Pin 86) 3.6V TYPE 1 (Pin 85) 0V Model KDC-W3037AY/W3037GY/ W311AY/W311GY/W4037Y 3.6V 3.6V 1.2V 2.4V KDC-W3537AY/W3537GY KDC-W237AY/W237GY H PS2-2 L L H AUDIO/SW5 OFF ON ON AM OFF OFF ON PS1-3 L L L H PS2-1 L H H H ILLUMI OFF ON ON ON P-CON OFF OFF ON ON P-ANT OFF OFF OFF ON

8

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

TEST MODE
Example

:

:

.

Key 5 5

Description of display Disc EJECT times display
E J C X X X X X

Description Disc EJECT times display. MAX 65535 (times) While disc EJECT times is displayed, press and hold for 2 seconds or longer to clear disc EJECT times.

A symbol "" in the key column indicates that the key should be pressed and held for 1 second or longer.

How to enter the test mode
Procedure Press and hold the [1] key and [3] key and reset. Note While "­ ­ ­ ­" is displayed, power can be turned ON for only 30 minutes. (KDC-W3537AY/W3537GY/W4037Y only)

All lamps blink when it is detected that the sub-clock resonator is disconnected. Do not display "CODE_OFF", "CODE_ON" or "CODE_NG" when Power is ON. When having started up in the test mode, change the LINE MUTE inhibition time from 10 seconds to 1 second. When operating in the test mode, even if a DC offset error occurs, detection information is not written in the E2PROM. When operating in the test mode, CD mechanism error log information clear mode, and DC offset error detection information clear mode, do not perform DEMO mode operations. Also, do not display DEMO ON/OFF option items in the MENU in STANDBY source in the above modes. Forced disc ejection is prohibited in the test mode.

How to clear the test mode
Procedure Reset, momentary power down, ACC OFF, Power OFF, Panel detached. Clearing the test mode Note

Test mode default condition
Description Source Display Volume Bass Boost CRSC AUX System Q Beep Preout STANDBY Display lights are all turned on. -10dB ("30" is displayed.) OFF OFF regardless of having/not having the switching function. ON NATURAL (FLAT) Sound on with a key pressed regardless of any settings. Sub Woofer Default values

9

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

TEST MODE
Special displays when all lights are on in STANDBY source
Key Common 1 All lights ON. Destination terminal condition indication Development ID condition indication 2 3 Serial No. display Power ON time display
0 P 0 O 0 N 0 0 0 0 H 0 X 0 X 6 1 1 A 2 ­ 3 . 0 0

Description of display All lights ON.
T Y P E : 1 1

Description

"TYPE" indicates system µ-com (IC1) destination, and shows real-time condition of the destination terminal. Development ID ­ Version (system µ-com: IC1)

Serial No. is displayed (8 digits) 00~50 is displayed for "XX". When less than 1 hour, displayed by displayed by increments of 10 minutes.

P

O

N

X

X

X

X

X

00001~10922 is displayed for "XXXXX". MAX 10922 (hours) When Power ON time is displayed, press and hold for 2 seconds or longer to clear Power ON time.

3

4

Disc operation time display

C

D

T

0

H

X

X

00~50 is displayed for "XX". When less than 1 hour, displayed by increments of 10 minutes.

C

D

T

X

X

X

X

X

00001~10922 is displayed for "XXXXX". MAX 10922 (hours) While the disc operation time is displayed, press and hold for 2 seconds or longer to clear the disc operation time. (Cleared only for displayed media.)

4

5 5

Disc EJECT times display

E

J

C

X

X

X

X

X

Disc EJECT times display. MAX 65535 (times) While disc EJECT times is displayed, press and hold for 2 seconds or longer to clear disc EJECT times.

6 6

Panel open/close times display

P

C

X

X

X

X

X

PANEL open/close times display. MAX 65535 (times) Press the key for more than 2 seconds while the PANEL open/ close count is displayed and PANEL open/close count is cleared.

FM

ROM correction version display

R E

O R

1 R

2

3

The number is the ROM correction version number. When E2PROM is not installed.

R
R

­

­

­

­

When not written in yet. When data not matched. (due to the difference in versions)

*

*

*

*

AM

ROM data transfer Audio data initialization Forced Power OFF information display
A
P P

U
O O

D
F F F F

I

N
­ S

I
­ E

T
­ C

AUDIO setting value is re-set to the test mode default value. No forced power OFF Forced power OFF because of missing Security Code. (Code security supporting model)

P

O

F

F

P

N

L

Forced power OFF by communication error between system µ-com and panel.



While the forced power OFF data is displayed, press and hold for 2 seconds to clear the data. CD information display mode ON/OFF For the display contents, refer to "CD information display mode" in the next section. While in CD information display mode, press and hold for 2 seconds or longer to clear all CD information.



10

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

TEST MODE
· CD information display mode
Key FM (forward rotation) AM (reverse rotation) / CD Load error information display / CD Ejection error information display
E J E R R 3 : X X E J E R R 2 : X X L D E R R 2 : X X L D E R R 1 : X X

Description of display / CD mechanism error log display
M C E R R 2 : X X M C E R R 1 : X X

Description Mechanism error log 1 (Latest) XX: Error number. "­ ­" is displayed in case there is no error. Mechanism error log 2 (Latest) XX: Error number. "­ ­" is displayed in case there is no error.

M

C

E

R

R

3 : X

X

Mechanism error log 3 (Latest) XX: Error number. "­ ­" is displayed in case there is no error. Load error switch 1 XX: Number of errors. "­ ­" is displayed in case there is no error. Load error switch 2 XX: Number of errors. "­ ­" is displayed in case there is no error.

E

J

E

R

R

1 : X

X

Ejection error switch 1 XX: Number of errors. "­ ­" is displayed in case there is no error. Ejection error switch 2 XX: Number of errors. "­ ­" is displayed in case there is no error. Ejection error switch 3 XX: Number of errors. "­ ­" is displayed in case there is no error.

E

J

E

R

R

4 : X

X

Ejection error switch 4 XX: Number of errors. "­ ­" is displayed in case there is no error.

/

CD time code error count data display (Missing counts)

C

N

T

L

O

S

E

CD time code error count data (Missing counts) mode display. Number of CD-DA count errors XX: Number of errors. "­ ­" is displayed in case there is no error.

C

D

D

A

: X

X

C

D

R

O

M

: X

X

CD-ROM (Compressed file) number of count errors XX: Number of errors. "­ ­" is displayed in case there is no error.

/

CD time code error count data display (count not updated)

C

N

T

S

T

A

Y

CD time code error count data (count not updated) mode display. Number of CD-DA count errors XX: Number of errors. "­ ­" is displayed in case there is no error.

C

D

D

A

: X

X

C

D

R

O

M

: X

X

CD-ROM (Compressed file) Number of count errors XX: Number of errors. "­ ­" is displayed in case there is no error.

11

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

TEST MODE
Test mode specifications in TUNER source
Error is found in front-end (A1), etc. if indications below is displayed while in tuner source. Status Front-end (A1) E2PROM data error Front-end (A1) communication error
T
T

Display
N
N

Description
N
N

E
C

2
O

P
N

G
G

Front-end (A1) E2PROM is still the default (unspecified) value. Communication with front-end (A1) is not possible.

· TUNER preset operation
Key 4 Preset function Description of display
F M 1 9 8 . 3 A 4

Description Change to 98.3MHz with the preset key [4].

· K3I forced switching
Every time when [6] key is pressed in tuner FM source, switched in the following order: AUTO Forced WIDE Forced MIDDLE Forced NARROW AUTO. Default status is AUTO, and displayed as shown below. Key 6 K3I Forced switching Description of display
F F M M 1 1 9 9 8 . 1 8 . 1 A W

Description AUTO Forced WIDE Forced MIDDLE Forced NARROW

F
F

M
M

1
1

9
9

8 . 1
8 . 1

M
N

· RDS auto measurement
Add the process to replace the visual inspection of PS display previously done in the production line. Status PS data reception
R D S

Display
T E S T

Description If displayed as shown at the left, force to OFF. P-CON is recovered by Power OFF/ON.

· FST adjustment mode
Perform FST soft-mute adjustment. Key Note Enter the FST adjustment mode. (Press for 1 second or longer.)

Operations in the FST adjustment mode are as follows: Key FM (UP) AM (DOWN) Adjustment value memory Mode clear
F M 1 9 8 . 3 A 4

Description of display Soft-mute adjustment
S M D ­ F

Description 18dBµ (0) 36dBµ (F)

E

P

W

R

I

T

E

Displays the data that has been written in the E2PROM when pressing the key for 2 seconds or longer. Clear the FST adjustment mode. (Returns to normal display and the test mode is retained.)

After completing the FST adjustment, if You wish to clear the test mode, You can do this using the reset button.

12

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

TEST MODE
Test mode specifications in CD source
Display mode default: P-Time

· Procedure in CD-DA media (KTD-02A)
Key Track up procedure Description of display Description Every time pressed, jumps to the track shown below. No.9 No.15 No.10 No.11 No.12 No.13 No.22 No.14 No.9 (recursive) But in case the disc has 8 tracks or less, playback starts with track No.1. (For both CD-DA and compressed file discs) Track down procedure 1 2 3 Jump procedure Jump procedure Information display Mechanism model name Mechanism version 6 Jump procedure
6 E 0 0 :

Goes down by 1 track from the currently played track. Jump to No. 28 (Scratch 0.7mm for MUSIC line vibration testing) Jump to No. 14 (Blurring surface disc TCD-731RA Tr14) Display of Mechanism model name and Mechanism version. (When key is pressed while the display in the left is being shown, returns to normal display.) Jump to No. 15. Set the volume value to "25". (For 20Hz 0dB DC protection false-operation FCT checking)

Used media: For CD, KTD-02A

Audio-related test mode
Procedure Press the [AUD] key (main unit) Press the [AUD] and [] keys (Remote control) Note Enter audio adjustment mode (the initial item should be Fader, and then, Balance Bass Level Middle Level Treble Level (SW Level ) System Q V-Offset (LPF Sub Woofer.). ( ) means KDC-W4037Y only.

About audio adjustment items (include both Audio Function Mode and Audio Setup Mode) Procedure For item forwarding procedure, press [AUD] key and [FM] key Fader Balance Bass Level Middle Level Treble Level LPF Sub woofer Item Procedure [VOL] knob and [ [VOL] knob and [ [VOL] knob and [ [VOL] knob and [ [VOL] knob and [ [VOL] knob and [ / / / / / / ] key ] key ] key ] key ] key ] key Description Adjust to 3 steps of R15 0 F15. (Default value: 0) Adjust to 3 steps of L15 0 R15. (Default value: 0) Adjust to 3 steps of -8 0 +8. (Default value 0) Adjust to 3 steps of -8 0 +8. (Default value 0) Adjust to 3 steps of -8 0 +8. (Default value 0) Adjust to 2 steps of 80Hz Through. (Default value: Through) (Only in models with Sub Woofer output) Volume Offset [VOL] knob and [ / ] key Adjust to 3 steps of -8 0 +8. (Default value 0)

Procedure Press the [B.BOOST] key for 1 second or longer

Note Switch Bass Boost (Note: Front key functions as MENU.)

13

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

TEST MODE
MENU-related test mode
Procedure Press the [B.BOOST] key (main unit) Press the [DNPP/SBF] and [DIRECT] keys (Remote control) Note Continuous forwarding by remote control is prohibited

Backup current measurement
Procedure While ACC OFF (Back Up ON), Reset Note MUTE terminal is OFF after 2 seconds, not after 15 seconds. (During this time, the CD mechanism does not function.)

PREOUT switching (KDC-W4037Y only)
Procedure In the STANDBY source, press and hold [TI] key for 1 second or longer Switches PREOUT Note

Key illumination switching
Procedure In STANDBY source press [AUTO] or [TI] key Note Switches the key illumination GREEN / RED.

Fluorescent indicator tube (ED1) short check
Procedure In the STANDBY source, press [ATT] key Note All lights are off Turns on odd and even terminals alternatively every 125ms (terminals that have a maximum number of grids) Turns on only the odd terminals Turn on only the even terminals

Clearing CD mechanism information / Service information / DC offset error information (Clearing E2PROM data)
Status While pressing and holding [B.BOOST] key and [ATT] key, reset-start.
C C D D

Display
O X

Description At normal termination At abnormal termination

While "­ ­ ­ ­" is displayed, power can be ON for 30 minutes. This mode is cancelled by resetting. (The last screen will not be retained.) Data to be cleared is shown below. CD mechanism information I2C communication status display CD mechanism error log display Displays CD loading error data Displays CD EJECT error data Displays CD time code count error data (missing count) Displays CD time code count error data (count not updated) Service Information Power ON time display CD operation time display CD EJECT times display PANEL open/close times display Forced Power OFF information display DC offset error information DC offset error 1 display (Provides information on whether there is an improper connection or another error) DC offset error 2 display (Provides information on the number of capacitor leaks)

14

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

TEST MODE
Clearing DC offset error detection data (E2PROM data clearing)
Procedure While pressing and holding [3] key and [6] key, reset-start. Note Entering DC offset error display mode.

Procedure Press and hold the [3] and [6] keys, and reset-start
D C D C

Display
E R R

Description When DC offset error is detected (when either one of capacitors is leaking, or an improper connection or another error is detected)

O

K

When DC offset error is not detected (when none of capacitors leak, no improper connection or other error is detected)

1

D
D

C
C C

1
1 1

E
O O

R
K K

R

When improper connection or other DC offset errors are detected. When improper connection or other DC offset errors are not detected. When detecting improper connection or other DC offset errors, clears detection data. (Clear E2PROM)

1

D

2

D

C

2

4

When detecting capacitor leak, provides information on the number of capacitor leaks. (0~4)

2

D

C

2

0

When detecting capacitor leak, clears the number of capacitor leaks. (Clear E2PROM)

This mode is cancelled by resetting. (The last screen will not be retained.)

Security (KDC-W3537AY/W3537GY/W4037GY only) · Forced Power ON mode
Procedure While pressing and holding [B.BOOST] key and [4] key, reset-start. Note While "­ ­ ­ ­" is displayed, power can be turned ON for only 30 minutes. After 30 minutes, can only be recovered by resetting.

· How to register the security code on the "Car Audio Passport" after replacement of the FRONT-END (A1) with E2PROM
Procedure While pressing and holding [1] key and [3] key, reset-start Press the [B.BOOST] key Press and hold [ [FM] / [AM] / [ ] key for 1 second or longer ]/[ ] key Enters the test mode Enters the MENU mode. Enters the security registration mode. Inputs the code. FM: Number up / AM: Number down / Cursor to the left / Press and hold [ [FM] / [AM] / [ ] key for 3 seconds or longer ]/[ ] key "RE-ENTER" is displayed. Inputs the code again. FM: Number up / AM: Number down / Cursor to the left / Press and hold [ ] key for 3 seconds or longer "APPROVED" is displayed. Cancels the test mode. Cursor to the right Cursor to the right Description

Reset, momentary power down, ACC OFF, Power OFF, panel removed Note: The security code in this model cannot be all-clear.

15

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

TEST MODE
ROM data transfer
When replacing front-end (A1), this function is used to transfer E2PROM data (ROM correction, security and other data) to front-end (A1) to E2PROM of to mother unit (X34-), used for saving data, and, after completing replacement of front-end (A1), to recover data from the E2PROM of the mother unit (X34-), and for saving data to the new front-end (A1). Refer to "ROM data transfer processes" on the next page for details on frontend (A1) replacement procedures and on the data to be transferred. Procedure While pressing and holding [1] key and [3] keys, reset-start Press [B.BOOST] key (MENU) Press [ ] key or [ ] key
R R O O M M R R E E A A D D

Display
:

Description All lights ON.

MENU mode Front-end (A1) Mother unit (X34-). Data transfer processing. Mother unit (X34-) Front-end (A1). Data transfer processing. Front-end (A1) Mother unit (X34-). ROM data is being transferred.

R

O
E E

M
A A D D

W

R

T

(In the above ROM READ status), [ ] key for

R R

O

K

Front-end (A1) Mother unit (X34-). ROM correction transfer, security and other data is OK.

2 seconds or longer
R E A D O K 2

Front-end (A1) Mother unit (X34-). Transfer of security and other data is OK.

R

E
R R

A
T T

D

N

G

Front-end (A1) Mother unit (X34-). ROM data transfer is NG. Mother unit (X34-) Front -end (A1). ROM data is being transferred.

(In the above ROM WRT status), [ ] key for

W W

O

K

Mother unit (X34-) Front-end (A1). ROM correction, security and other data transfer is OK.

2 seconds or longer
W R T O K 1

Mother unit (X34-) Front-end (A1). ROM correction data transfer is OK.

W

R

T

O

K

2

Mother unit (X34-) Front-end (A1). Transfer of security and other data is OK.

W

R

T :

N

G

Mother unit (X34-) Front-end (A1). ROM data transfer is NG Clear from ROM correction data transfer processing

(In every status of ROM data [ ] transfer processing)

16

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

ROM DATA TRANSFER PROCESSES
When replacing front-end (A1) of mother unit (X34-), or when adding or replacing ROM correction (program correction with ROM IC (IC10)), the following activities are required.

Operation procedure
Operation procedure is different depending on the conditions. Proceed with the appropriate operation procedure depending on the specific condition.

Overview
When replacing front-end (A1) in the model where ROM correction and security data have been written into E2PROM, included in the front-end (A1) pack, the transfer function of the E2PROM data itself in the replaced front-end (A1) is required. This function in the above system configuration is used to allow for complete replacement of the front-end at any service center. 1. In case of replacing front-end (A1) without an applicable ROM correction. 2. In case of replacing front-end (A1) with an applicable ROM correction. 3. In case of applying new ROM correction at the same time when front-end (A1) is replaced. (No ROM correction has been carried out.)
q Mother unit (X34-) FRONTEND (A1) E2PROM SYSTEM µ-COM (IC1)

Overview of specifications
Procedures for replacement are as follows: To install the E2PROM to the mother unit (X34-), and replace front-end (A1) with new front-end after copying the data in the E2PROM (such as ROM correction data and other data) in the front-end (A1) to the mother unit (X34-) by operating the system, and then copy the data (such as ROM correction data and other data) into the mother unit to the E2PROM of the front-end (A1), operating the main body. Tuner adjustment data was inserted during the tuner pack manufacturing, and data will not be transferred because frontend (A1) is built-in. In addition, tuner adjustment data for new front-end (A1) is supplied as a service part in which data was inserted.

E2PROM

E2PROM circuit pattern

Install new E2PROM. Install E2PROM containing no data, in case of [1] and [2]. In case of [3], install maintenance E2PROM with an applicable ROM correction program.
w Mother unit (X34-) FRONTEND (A1) E2PROM SYSTEM µ-COM (IC1)

Data to be copied
· ROM correction data · Other data Security data DEMO MODE ON/OFF status POWER ON time (For maintenance) Playback time (For maintenance) EJECT count (For maintenance) Panel open/close count (For maintenance) CD I2C status (For maintenance) CD offset error code (For maintenance) CD sound skips count (For maintenance) CD time code not updated count (For maintenance) CD load switch errors count (For maintenance) CD ejection errors count (For maintenance) DC offset error (For maintenance) Forced Power OFF information (For maintenance) Serial number (For maintenance) E2PROM data check data (For internal check)

E2PROM

17

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

ROM DATA TRANSFER PROCESSES
Turn power on. Press and hold the [1] and [3] keys and press reset button. (Enter the system in the test mode.) Press [B.BOOST] key. (ROM data System enters data transfer mode.) Press [ ] (or [ Press [
e Mother unit (X34-) FRONTEND (A1) E2PROM SYSTEM µ-COM (IC1)

Install new front-end (A1). No ROM correction or other data status.
t Mother unit (X34-)

].) (Select READ)
FRONTEND (A1) E2PROM

] key for 1 second or longer. (Data transfer)

SYSTEM µ-COM (IC1)

E2PROM

E2PROM

Turn power on. Press and hold the [1] and [3] keys and press reset button. (Enter the system in the test mode.) Press [B.BOOST] key. (Start transferring ROM data.) Press [ Press [
y

The system µ-COM (IC1) copies the data in the front-end (A1) in the E2PROM on the mother unit (X34-)

] (or [ ].) (Select WRT) ] key for 1 second or longer. (Data transfer)

In case of [2] READ OK In case of [1] or [3] READ OK2 R-O2
FRONTEND (A1) E2PROM

R-OK

Mother unit (X34-) SYSTEM µ-COM (IC1)

E2PROM

Press [

] key. (Exit ROM data transfer mode.)
System µ-COM (IC1) copies data on the mother unit (X34-) into E2PROM in the front-end (A1)

Turn power off. Remove front-end (A1).
r Mother unit (X34-) FRONTEND (A1) SYSTEM µ-COM (IC1)

In case of [2] or [3] WRT OK In case of [1] WRT OK2
E2PROM

W-OK

W-O2

Press [

] key. (Exit ROM data transfer mode.)

18

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

ROM DATA TRANSFER PROCESSES
4. In case of applying a new ROM correction when front-end (A1) is replaced (There is ROM correction data.) 5. In case of applying a new ROM correction even when frontend (A1) is not replaced.
q Mother unit (X34-) FRONTEND (A1) E2PROM SYSTEM µ-COM (IC1)

Turn power on. Press and hold the [1] and [3] keys, press reset button. (Enter the system in the test mode.) Press [B.BOOST] key. (ROM data System enters data transfer mode.) Press [ ] (or [ Press [
e Mother unit (X34-)

].) (Select WRT)

] key for 1 second or longer. (Data transfer)

ROM correction Tuner adjustment Other

FRONTEND (A1) E2PROM

SYSTEM µ-COM (IC1)

E2PROM circuit pattern

E2PROM

Install new E2PROM. (E2PROM that has been updated with ROM correction)
w Mother unit (X34-) FRONTEND (A1) E2PROM SYSTEM µ-COM (IC1)

System µ-COM (IC1) copies the ROM correction data on the mother unit (X34-) into E2PROM in the front-end (A1)

WRT OK1

W-O1

In case of [4] Press [

In case of [5] ] key. (Exit ROM

E2PROM

data transfer mode.)

Press [ Press [

] (or [

].) (Select READ)

] key for 1 second or longer. (Data transfer)
Mother unit (X34-) FRONTEND (A1) E2PROM SYSTEM µ-COM (IC1)

E2PROM

System µ-COM (IC1) copies data in the front-end (A1) into the E2PROM on the mother unit (X34-). (ROM correction and other data)

READ OK

R-OK

19

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

ROM DATA TRANSFER PROCESSES
Press [ ] key. (Exit ROM data transfer mode.) Turn power off. Remove front-end (A1).
r Mother unit (X34-) FRONTEND (A1) SYSTEM µ-COM (IC1)

Turn power on. Press and hold the [1] and [3] keys press reset button. (Enter the system in the test mode.) Press [B.BOOST] key. (Enter the system in ROM data transfer mode.) Press [ Press [
y Mother unit (X34-)

] (or [

].) (Select WRT)

] key for 1 second or longer. (Data transfer)

E2PROM

FRONTEND (A1) E2PROM

SYSTEM µ-COM (IC1)

E2PROM

Install new front-end (A1). No ROM correction or other data status.
t Mother unit (X34-) FRONTEND (A1) E2PROM SYSTEM µ-COM (IC1)

System µ-COM (IC1) copies data on the mother unit (X34-) into E2PROM in the front-end (A1)

WRT OK

W-OK

Press [
E2PROM

] key. (Exit ROM data transfer mode.)

20

A

B

C

D

E

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

PC BOARD (COMPONENT SIDE VIEW)
SWITCH UNIT X16-386x-xx (J76-0360-02)
D31 D11
B.BOOST

1

(FOIL SIDE VIEW)
SWITCH UNIT X16-386x-xx (J76-0360-02)

D13 D33

VOL AUD

R62

R63

D6
RST

R34

C12 C11

R82 R81

D16 D36
AUTO

R80 FL+B
C25 C24

AUX L AUX G AUX R

ESD GND

TDF DET R33

CP11

D15 D35
1

R96

D14 D34
2

D72 D79

R70

2

D77

80

D19 D39
3 20

R72 R74
1

1

CCW PAN5V

J1

D76 D75 D74 D73

R17 R16 R15 CE

R14 VFD DATAS VFD CLK R13 VFD DATAF RST R18 VFD RST R11 REMO D71 R19 CW

19

SW5

GUARD

20

KS2
40 41 1

FL SW11 25V

D17 D37

R78

D18 D38
4

IC1

21

60

61

R3 R1

R4 R2

Q1

D41 D21

W1 W2 LED+B R32

Q2

IC3

6A

R21 C21 R22

R61

KI2

KI3

KI5 J2-R

R31

D9/ W4

J2-L

KS1

KI4

Refer to the schematic diagram for the values of resistors and capacitors.

ATT 5 6 SRC

KS3 W3

S2

D4

D2

D1
D12 D32

2

D3

D5

CP1

ED1
66

3

4
C10 R75 C15

5

PAN SW5V

D22 D42

KS4

E

BE

B

17

18

KI1

X16-386x-xx
VO VCC G

R23 ILL D GND C16

X16-386x-xx Ref. No.
GUARD

6

Ref. No.

Address

Address 4D 6D 6D

IC3

IC1 Q1 Q2

S1 D8
AM AUX IN

D7

FM

D40

D20

J2

7

21

F

G

H

I

J

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y
1

PC BOARD (FOIL SIDE VIEW)
ELECTRIC UNIT X34-467x-xx (J76-0358-02)

W808

W1

C1

W807 W806 W805

W100

W2

2

16

9 8 27

IC6
1 2

E

1 W3

Q2

R914

R913

R892

C2

W102

R101

W802

L1

J1

W901

26

R891
W803

D101

B

R907

R912

R911

W809

C809

C804

D1

W811

W810

R102

R909

W23

TH1

BE

W4

W902

D109

R112

D108

R113

R902

R951

D102

D104

Q1

EBE C C C14 C4

R106 R107 C102 R110

R905

Q901
EB

R906

R903

C805

R1

W6

R915 R904

D103

Q902

D107

Q903

Q101

BE

EB

D901

R954 W9

W10

R104 C101 R105

R804

W7

C3

R109

W24

W26

C12

W25

W27

W28

W29

EB

W59

R805

R117

C902

Q104

R598 R599

R808

C11

1

W801

Q103

R806

R807 C808 C803 W6 W68

D3

C6

W13

D801

EB

Q105

D110
W30

C801

W12

W61

IC4

C7

SEL1

SEL2

W63 R971

W34

W33

D5

R116

W31

W32

R970

W64

4

R968

C990

W14

R955

W35

W62

W65

C5

C9

W36

Q4 D4

R5

R4

R219

28 20

W11

W55

EBE

R227

R963

W56

R220

W53

12

C C

D401

R969 L401 C401

IC2 D404
1

R802
R791 W66 R793 1

R953

BE

R108

D802

EB

R115

R114

EB

DC-DET C901

D803
C807

BE

Q801
R803

3

D106

Q102

D105

R901

R801

W812

W8

C802 R972 W307 W308 R210 R209 W85 R330 R332 R333 R334

R908

W903

D2

W804 C806

R910

IC3

R11/W5

R228 R226 R225

W15

C205

R2

R3

W40

W41

W44

W50

W17

W37

NOISE W16 R201

R223 R221

R406

W39

R407

BE

W54

R202

W42

W46

RST 81 80

W38

R409

W48

R403

W43

R964

W57

W47

100

W49 R965

R340

C301

CNVSS

W51

R12

50

O-CE

W304

R331 C302 R342

O-DATA

R203

C202

51

R318

IC1

O-CLK

1

X2

R320 R319

W309

D303
R3 R3 R3 R3

C203

R13 R961

R952

R205 2 1 34

C204 R204

Q7

X1

EBE

R207

Q9

R317 R306

W305

R14

R307

D7
C15

R15 Q301

R310 R312 R211

E

B

R208

R212

W302

EB

R17

W22 1

W303

R962

R967

2

D301

R347

J3

7

22

R336

W21

W306

Q8

W20

R206 R335

R304

R302

6

EB

R16

W19

ROM-DET 30

31

R301 1 2

R311 R313

IC8

W301

C C

R303

R305

R308

R314

R309

R316 R315 23 24

CN2

A-DATA
R

R214

W58

W18

W60

R229

W45

W201

R218

W52

5

R402

W86

R408

Q402

D606 R609

R111

R103

R611

Q3

K

L

M

N

O

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y
1

J4

X34-467x-xx Ref. No.
C704
2 3 4 8 12 11 13 1 3 5 7 6 10 9 R604 C604 C703

Address 5H 4J 4K 4G 2J 6M 6G 4L 3G 2G 3G 6G 6G 6G 3H 3I 3I 3I 4I 6H 7L 4K 5J 3L 3L 3L 3J 3I 3I

2

IC1 IC2
R704

J5
R705 R703

IC3
R702

R706

IC4
J2

R606

R603

D606 R609

R608

R611

R605

R612

R610

R607

R601

R602

R701

Q701
R958
BE

Q702
BE

IC6 IC7

C802

C603

C601

C602

C701

W75 W74

C702

IC8 IC9 Q1 Q2

Q705

D605

D604

R959 R710 R712

Q801

W73 W72 R803

BE

3

D601

D603 D602

R792

R708

E

R802

CN4
EB

Q3
C707 C708

W71

W76

C706

W77

W79

EB

R707

R807

W70 W69

W78

Q704 Q703
R709 R711

3

Q7 Q8 Q9 Q101 Q102

1

W68

W701 W67

C705 R492

24

W82

W80

W81

16

9

Q103 Q104

C404

R404 C405

R793

Q401
EB R493 R973

1 R491 W84 8 5

8

C502

R791 W66

IC9

Q105 Q301 Q302 Q401 Q402

4

15 20 11

R405

IC3
10 14

W83

C403

IC10
SW5V
1 4

R502 R504

R501
R503

C504

C506

Q701
A1

W97

S-METER

Q702 Q705

R972

W86

W87

W94

W96

W98

W91

Q901 Q902
C509 C510

W88

W89

W95

W92

W90

W93

5

Q903

A-DATA

A-CLK

D306

D304

W101

D303

W103

D305

C508 C307
RDS-QUAL

R329

1

CN3

R209

R341 R339 R338 R337

1

C306

2

C308

R508

W99 R344 R346

X3

C516 C515

16

9

IC7
C513 1 8 C517

6

R333

R334

R336

R345

P1

R343

C512

R323

Q302

20 19 R347 C309

EB

D302

3

R509

R506 R507 C514

C511

Refer to the schematic diagram for the values of resistors and capacitors.

7

23

P

Q

R

S

T

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y
1

PC BOARD (COMPONENT SIDE VIEW)
CD PLAYER UNIT X32-5970-00 (J76-0366-02)
S2

R220

2

S1

R223 R60 C100 C61 R61 C62 C35 C39 C34 C64 C33 C41 C40

R219

R49

R50

R48

D4

3

R228

R221 R226 R222 R229

R227 R230

4

C103

C52 C51 R45 C50 C49

C44

C91

C53

S3

C24

5
S4
R25 R26 C22 R23 C21 C20 R21 R20 R22 C25

6

7
Refer to the schematic diagram for the values of resistors and capacitors.

24

R27 R28 C23

U

V

W

X

Y

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

PC BOARD (FOIL SIDE VIEW)
CD PLAYER UNIT X32-5970-00 (J76-0366-02)
IOPARF GND A3.3V Vref RF DGND 3BUCK

1

IOP+

R35

A B

C

PD

C90 R243 R32

R244

C27 C29

C66 CP7

Q10

R239

DGS

VR

S GD D GS

TE

E

F

R217 R37 R36
PIO0 zDET SFY DG S IPF SBK SBY

D2
LD D3.3V

C38 R38 C31

C30 C32
RFI

R34 R33 C26 75 76

S GD
3PIO0

Q12

3SI

C63 51 50 R216

3SO Q11 3/CCE S G D 3/MRST 3SRAMSTB

2

1
TRK+ FCSTRK-

R59

C72 R232

AGCI

AGND FCS+

C71

DGND

I IC11 R241 C94 24 G

C95

C69 3 1 5 C68

RFRP FE D1.5V

IO0 FMO IO1 DMO

3

1 5 C89 R52

4 R55

4

C101

TRO FOO

R40 R41

IC6

IC5

X1

DM1.5V TEZ

C48

R233

C54

R231

O

100 1 C47

SBAD

26 25 R46

C58

16

Q1

R252

R247

CN1

EB

C36

IC4

LOS-SW

C60

C97 R246

3

C46 C45 C96
SRAMSTB SO BUCK /MRST CCE SI

R240

R51

D1
SLED IN /EJECT

R248

12EJE-SW SPDL+ A8V

SLED OUT /LOAD

BU5V MUTE-L/R LOE-SW DGND

D3
EB

CN2

Q13

C10

R82

SPDL-

R83

8EJE-SW

PON S7.5V LO/EJ MOTOR SGND

C87

C88

4

1

R31

DRVMUTE

Lch A.GND

R30

R245

R29 16 15
SLD+ SPDL+

Rch

R218

SLD-

SPDL-

C73 C74 3 1 4 5

AD3.3V

IC7 IC3

5
R251

C76 C77
MD

SD TD

30

1
FD

6
X32-5970-00 Ref. No. IC3 IC4 IC5 IC6 IC7 IC11 Address 5V 2W 3V 3U 5X 3V Ref. No. Q1 Q10 Q11 Q12 Q13 Address 2V 2X 2X 2X 4W

7
Refer to the schematic diagram for the values of resistors and capacitors.

25

A

B

C

D

E

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y
ELECTRIC UNIT (X34-46xx-xx)

1

I
REQ S MUTE TP98 TP95 TP97 TP99 TP96 TP94 R606 1K R609 100 R607 1K R605 100 R608 100 R610 4.7K 75 72 100 2 1

2SB1565

DATA S CLK DATA M RST

D603 D605

13

TP102 Lch 11 7 3 12 Rch 8 4 AGND CON REQ M BU GND

D606

D601

R604 1K

C604

0.01

LX BUS J4

D602 D604

70

R601 C601 10 0.47 R602 C602 10 0.47 R603 C603 4.7 47u6.3 + R612 4.7K R611 100 BU

GND2 CH-L CH-R 1

9 5

10 6 2

TP100

2
DTC114YUA 2SA1576A 2SC4617

TP101 TP92 TP93 TP90 TP91

1

CH-G 71 73

G
CN4

TP341 R711 180

R707 330

Q703
22K
0

C705 10u35 +

FL

C707

R709

680P

FRONT

L

1

TP344

R959

C708

R710

680P

3

R 3 TP342

22K

2SC4081

GND 2

Q701-704 R708 C706 330 10u35 + R701 C701 330 10u35 +

I
E
FR

R712 180

Q704

PRE-OUT MUTE SW

D
J5 L

TP338 R705 180

R791
0

3 RL

Q701
22K

W701

C703

REAR/SUB

TP340

R703

680P

C704

680P

R704

22K

R958 0

R

TP339

UMC2N

R706 180

Q702 330

R702

C702 10u35 +

R792
0

R793
0

RR

AU

4

J2 ANT TUNER UNIT A1
RFGND ANTINPUT NC AM+B 24 23 22 21 20 19 18 TP113 TP68 TP551 TP552 TP66 C502 0.01 TP65 TP128

Q705
R969 R970 0 0

R403 SDA

MUTE DRIVE for PRE-OUT

R402 470

SCL

470

BU5V AM+B


6

DAP202U DA204U

OSCGND VT COM+B

C504 17 TP69 R501 R502 4.7K R504 4.7K C506 TP73 TP74 TP75 TP76 TP77 TP78 TP79 C508 0.01 C510 0.47 C509 0.47 0.01 SW5V 0.01 66

IFC

TP70

5

SDA SCL D-GND VDD5V PLLGND SMETER AMIFOUT QUALITY RDSOUT D-GND2 RDSMUTE STDGND R L

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

SDA SCL

TP71 470 R503 470 TP72

6

AUDIO+B

84 7 83

65

A
IC
5V 0V 1 RD 5V 0V 2 RD 2.5V 3 VR 2.5V 4 M 5.0V 0V 5.0V
C517 560P
5 6 7 8 VD VS FL CI

6

IF+B IFGND

C514 330P

B
CN3
2

WIRED REMO
TP345 R329 1K

C513 10u35 +
1

2.5V

7

26

X34-467x-xx (1/4)

D303

A
R403

GND2

C517

6 73 71

5.0V 0V 5.0V
SDA 470

CH-L

CH-R

CH-G

5V 0V 1 RDSID 5V 0V 2 RDDA 2.5V 3 VREF 2.5V 4 MPXIN

2.5V
2 72 100 75 1 70 1

560P

7

5

8

6

IC7

IC2

AUDIO+B-1

CIN

VSSA

VDDA

FLOUT

E-VOL

IC3
1 28 27 26 2 3 ACINR VREF ACOUTR MIX SAOUT SAIN VDD 24 8.0V 25 ACINL ACOUTL

E-VOL

6

RDS IC

F

R347 1K

Q104

Q105

D801

C309

0.01

ESD GND

A-R

A-G

A-L

F AUX

CN DET

R951 0

AUX Rch 10 CH-L CH-G L

R963

AUX GND

CH-R

AUX Lch

SW5V VFD SYS DATA 31

R493

VFD CLK

ZA

VDD

Y0A

Y1A

SA

ZB

SB

SC

AUDIO+B-1

11

VFD CE

SW5V W803
1

XOUT

RDCL

RST

C511 10u35 +

MODE

VDDD

VSSD

TEST

XIN
SE3L 4

5V 0V

5V 0V

10
2

11 Q901
3 4 5 6 L GND R 10 CREF OUTSW GND CREF GND 11 14 15 DIFFR OUTSW 12 R 13 16 DIFFR OUTRF GND DIFFG OUTRF FR FR 9 13 12 17 L 8 DIFFG OUTRR DIFFL OUTRR 14 RR 11 18 RR 7 DIFFL OUTLR RL SE1R OUTLR RL 15 10 19 SE1R OUTLF FL 330K SE1L OUTLF FL 16 9 20 SE1L MUTE SE2R MUTE R901 17 8 21 R902 SE2R SCL SE2L SCL 18 7 22 SE2L SDA SE3R SDA 19 6 23 SE3R VDD 20 8.0V 5

D901

9 3 2 1
SE3L

12

13

14

15

16

0V

5.0V

Q901

TP903

5.0V

DC OFFSET DET

0V
R507 2.2K

R903 15K

X3 4.332MHz

R506 2.2K

R509 5.1K

C512 0.01

R508

2.2K

BU

22K

5V 0V

R904

5V 0V

Q902

74

60

61

DC OFFSET

AUDIO+B-1

C515 Q902,903

C516

10P

10P

DC OFFSET DET SW

7 3

Q903

4.0V 0V
3 C403 1u50 + 4.0V

330K C901 100u16 + R915 C902 100K 100u16 + R905 100K R906 100K

TP902

SW5V

TP375 3 87

R323 D302 R965

TP901

G

3

240 59

0

DSI ILLUMI SW D401 R971
0 4
18

Q302

77

R802

C804 0.22u50 RR C802 0.22u50 FR C805 10u35 +

R892 0

IC6

POWER IC

TP165

NC

P1
2 8 2

TP164

R343

150K C807 1u50 +

1K 2 R912 100K OFFDET TAB1 PWGND1 1 3

J3

M

D304

D305

D306

MUTE CONTROL

20

3

4 FRR908 100K

OUT2STBY

19

R973
0

5

0

R955

TP871

R345 4.7

C307 0.47

D110

18 6 7 4 2 5 8 6 3 1 E

A-R

R491

6 FR+ R911 100K

OUT2+ VCC1

7

TP881

0

A-G

8 68 FLR907 100K FL+ 10

17

OUT1PWGND2 OUT1+

R346 C308 2.2 47u6.3 + TP891 R344 C306

9

H

16

4.7

0.47

A-L

15

11

5

C801 0.22u50 FL

IC9

SVR 12 14 IN1 SGND IN2

ZC

Y0B

Y1B

Y0C

Y1C

VSS

VEE

ANALOG SW

14 10
33 46

TP163

R341 2.2K

13

13 7 9 10 11 12 13 14 15 16
32 34

TP162

R339 2.2K

1

0V 5.0V 0V 0V

TP161

R338 2.2K

C803 0.22u50

IN4 16 IN3

15

12

4

2 3

VFD PAN DATA

TP160

R337 2.2K

RL R909 100K

ACGND

17

1

10

ROM CORRECTION (NOT USED)

A

A2

A1

A0

IC10

GND

VFD INH

TP159

R336 2.2K

18 RL+ R913 100K

9

OUT3+ PWGND3

E2PROM

2/2

TP158

R334 1K

19

8
C405 10 0.1

4

RST

R492
6

GND R

20 RLR910 100K

X16J1
R404 1K
R405 47K C404 0.01

REMO

TP157

R333 1K

R340 2.2M

OUT3-

SCL

SDA

VCC WP

VCC2 22 OUT4+

21

7

5

6

7

8

RTRY CW

TP156

R332 2.2K

RR+ R914 100K

23 MUTE

6

57 R342 47K

5.0V 0V

RRW802

24

Q401

Q402

RTRY CCW

TP155

R330

OUT426 PWGND4 HSD

25 27

I

IC9 CONTROL SW

5 0 R972
R409 3.9K R408 1.5K

2.2K

56 R331 47K

5V 0V

K

TP409

TP410

FL+B(FL) LED+B(LCD)

TP154

TAB2

4

SCL

SDA

TP153

D404

R804 330 AUDIO+B-1

3

QUICK CHARGE VOLTAGE SW

LED+B(FL) NC(LCD)

BU

PAN5V

TP152

TP315

2 8 69
26

SW5V

ILL D GND

TP151

Q402

1

R805 150K

C809 1u50 + W801

6

J

R407 10K

78 L401 4.7uH

TP316

C401 47u16 +

22K

PANEL CN
6
AUDIO+B SW5V

67 R406

R962

D301

R806 4.7K

C808 1u50 +

D803
R599 1K R598 22K
TH1 67,69 R808

0

5

Q301

R807

10

4.3K

1

PANEL 5V SW

5

4

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

X34-467x-xx (2/4)
6
FL+B ILL+B

J

6

BU5V

27
8 7 BU

4

6

1

10

10

10

CD CN

24

CN2

K

L

M

N

O

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y
BU 5 5 BU 5

J1 9
8
TP1 FRONT L+ REAR L+ TP2

10 7
REAR LFRONT L-

11 6
REAR RTP6 FRONT R-

12 5
TP7 FRONT R+ TP8 REAR R+

4 1
100

4 1
87

4 1

TP3

TP4

BU5V-1 BU5V-2

BU5V-1

TP5

R228

R227

R225

R226

10
R205 C204 0.1

91

93

90

94

92

TP432

84

83

IC8
1 2 OUT 5.0V VDD VSS NC 4 3
100

R229
100K

10

7 5 4
2.2K R223 2.2K

R221

C205 1000P

BU5V-1

TYPE 1

REF CON

TUN SMETER

PS1 3

LINE MUTE

AVCC

OFFSET DET

PWIC DC DET

RDS NOISE

PS1 2

PS2 2

LX DATA S

TYPE 2

VREF

AVSS

R954

PS1 1

PS2 1

PON

NC

NC

47K 1

1 2 3 4 5 6 7 8

LX DATA M LX CLK NC NC NC REMO NC BYTE CNVSS XCIN

100K

5V 0V

5V 1.6V 0V 5V 0V

5V 0V 5V 0V

78 77

L

5V 0V 0V

5V 0V

D105

C101

C202 18P C203 22P

10K X2 32.768kHz R204 10K

BU5V-2

R203

TP412 9 10

11 12 13

XCOUT RESET XOUT

5V 0V

10

X1 10.000MHz 14 VSS XIN VCC1 NMI PANEL DET NC NC ROMCOR DET NC NC PON FL NC PON PANEL
VFD SYS DATA VFD PAN DATA

IC1
SYSTEM u-COM

R206 47K R207 47K 18 R208 47K
6

17

24 26

VFD CE/LCD CE

CD DRIVEMUTE

CD LOE LIM SW

CD SCL/CD SO

CD SDA/CD SI

CD LOS SW

VFD CLK

PON CD

SCL 6 SDA

AUD SCL AUD SDA

EPM

R210 470

CD CCE

29 30

PIO0

5V 0V

CD LOEJ

VFD BLK

0V

CD MRST

NC/BUCK

R209 470

CD MOTOR

PWIC BEEP

CD DISC8 SW

22K

NC

R109

5V 0V

BU5V

5V 0V

CD MSTOP/SRAMSTB

5.0V 18 19 TP413 20 0V 21 22 23 5V 0V 24 25 5V 26 0V 5V 27 28 0V

SERVO+B

Q3

5V 0V 5V 0V 5V 0V 5V 0V

BU5V-1

5V 0V 5V 0V 5V 0V

5V 0V 5V 0V 5V 0V 5V 0V

W201

5V 0V

5V 0V

CONTROL SW for SERVO+B BU DET Q103

D2

5.0V

16

C2 22u16 +

0V

15

75 R220 5V 0V 100K 1 74 74 RDS CLK 73 4 73 LX REQ M 72 R219 72 LX MUTE 71 5V 100K 71 LX CON 0V 70 70 LX RST 69 69 ANALOG CON 5V 68 68 MUTE 0V R218 67 22K 67 PON EXT GND 5V 66 66 TUN IFC OUT 0V R214 65 65 RDS AFS M 22K 64 0V VSS 63 7 NC 62 5.0V VCC2 5V 61 TP404 61 RDS QUAL 0V 60 60 RDS DATA 5V 59 59 DSI 0V 58 NC 5V 57 57 0V ROTARY CW 56 56 ROTARY CCW 5V 55 55 0V CD DISC12 SW 54 8 54 CD MUTE 53 NC 52 NC 9 51 NC

LINE MUTE

5V 0V

F
R117 10K R105 100K 0.01 R104

D101
R 1
47K

R101

SW5V R964 0
BU5V-1

SERVO+B AVR Q2 Q3
R1 1K

4.7K R115

R202

2

5V 0V

5V 0V

0 or 1.6 or 2.5 or 3.4 or 5.0V

5V 0V

5V 80 0V BU DET 79 ACC DET 78 PWIC MUTE 77 PWIC STBY 76 PWIC SVR 75 LX REQ S

0

R201

5V 0V

E

D102 P CON

4.7K

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

RESET IC

R116

10K

Q10

Q10
C102 SW5V 0.01

31

40

41

33

36

38

39

43

46

48

35

32

34

37

42

44

45

6,18,26

R335
40 R212 46 48 43 45 49 36 38 39 35 37 44 47 50

47K
31 32 33 34

47K 42

47

49

50

BU 9 8 10 T

10

8 9 10 8

8

C4

0.1

C3

7

0.1 0.1 0.1

10K

D103

5.0V

0V

4

5.0V

1

10

5.0V

0 or 5.0V 0 or 5.0V 0 or 5.0V 0 or 5.0V 0 or 5.0V

47K

1

7

BU

TP502

D104 P ANT
R102

Q1

R1 10

R953
0 AUDIO+B
ILL+B FL+B C11 2.2 C12

T T T T

AM+B BU5V

TP9

7

7

7

SW5V 8 BU5V

AUDIO+B

10

C5 100u25 D3 + C6 100u25 +

TP30

BU5V 9 SERVO+B
35 R315 4.7K

BU5V
C7 100u6.3 + C9

R9 0 T C9 0.0

SW5V

SW5V

R211

R308 2.2K 49 R309 4.7K

47K 50

42 R306

C302 0.47u50 + R313 1K 54 R314 100K

C301 0.47u50 +

R320 4.7K

R967 470

R319 2.2K

R317 2.2K

R318 4.7K

R316

4.7K

R15 R14 10 10

R13 R12 10 10

R11 10
C14

40

48

43

55

38

36

39

47

37

44

45

R305 1K R304 1K R303 1K

R301 2.2K

R302 100

TP362 R311 1K

TP363 R310 1K

R307

R312

ILL & VFD+B
TP373 TP374

0

VFD+B SW
BU

TP353

TP354

TP355

TP356

TP357

TP358

TP359

TP360

TP361

1K

Q4

TP364

TP365

TP366

TP367

TP368

TP369

TP370

TP371

TP351

TP352

TP372

Q8

Q8
2.7K R17

Q7

23
CD DISC12 SW CD LOS SW D-OUT BUCK

21
CD-SDA CD-SI CD-SCL CD-SO

19
Lch AUDIO+B

13
PIO0 CD MSTOP CD MRST

9
CD LOE LIM SW DGND BU5V

5
DRIVER MUTE CD LOEJ PON CD

3
SERVO+B CD MOTOR

GND

Rch

CD MUTE R

CD DISC8 SW

CCE

SERVOGND

CD CN

CONTROL SW for VFD+B

C15 22u16 +

CN2

24

22

20

18 17

16 15

14

12 11

10

8 7

6

4

2 1

Q9

R16 680

D7

24 R952 0 10

94

VFD+B AVR

Q9

CONTROL SW fo

10

KDC-W237AY/W237GY/W3037AY/W3037GY/W311AY/W311GY/W353

to X32- CN2

28

X34-467x-xx (3/4)

D5

2.2K

H

1/2W 1/2W 1/2W 1/2W

1/2W

R961

W5

Q7

0.1

TP28

RR+

FR+

RL+

RR-

FL+

FR-

RL-

FL-

B L 3

04 P ANT

LINE MUTE

02 P CON

RVO+B AVR

D5
0.1

R968 0

10K

TP924

R103

R2 10K TP11 TP12 TP13 TP14 TP15 10K R113 100K R111 39K 68K R110

D4
P-ANT P-CON PHONE ACC GND

28 53
0.1 C101 R101 R102

4
D2
11
FRTP5 FRONT R-

RL-

6

+ C9

Q103

2.2 C12

SW5V

C3

C102

1K

R1

BU
0.01 R115 RR-

0.01 4.7K 4.7K TP6 R104

REAR R-

BU DET

0.1

+ C6 100u25 +

Q2

TP30
0.1

12

5

10K

D101
BU
RR+

D103
FR+

Q101
47K

TP7 FRONT R+ TP8 REAR R+

Q102

C990 0.022
R108

D109

4

TP420

TP920

TROL SW for IC4
3

93

Q1 SW14

13 14

TP26

10.2V

91

R3 10K

DC CN

TP921 14.4V 2

14.4V 7

90

R4 10K

P

14.4V 6

5.0V 9

5.0V 8

D108

33K

0V 1

ACC DET D106 R107

R114 R112 10K 20K D107

SURGE DET

TP922 14.4V 3 P-ANT 8.1V 4 TP27 AUDIO 8.1V 5 TP25 AM

POWER SUPPLY IC

TP31

92

R5 10K

BU

12

10

2

11

15 16 1

IC4

TP16

ILM
R106 3.3K

VDD

GND

SEL2 C1 3300u16 +
1/2W BU

SEL1

VCC2

VCC1

SW5V

P-CON

FUSE

D1
L1 140uH TP10 B.U. TP9

F1 10A (F52-0023-05)

1GY/W3537AY/W3537GY/W4037Y (1/2)
F G J L YES YES 47K 47K 47K YES YES YES H I K M C4 IC1 IC2 or IC3 IC6 D5 R227 R228 YES YES Q4 R316 R333 R308, 309 YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES 47K 47K 47K 47K 47K 47K 47K 47K 47K 47K 22K 47K 22K 47K 22K 47K 22K 47K 22K YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES 30302MAPA54FP 30622MGPB23FP 30302MAPD32FP 30302MAPD32FP 30302MAPD32FP 30622MGPB23FP 30622MEPB25FP 30622MGPB23FP 30622MEPB25FP 30302MAPD32FP 30622MEPB25FP 30622MEPB25FP 30622MEPB25FP 30622MEPB25FP 30622MGPB23FP 30622MEPB25FP 30302MAPA54FP 30302MAPA54FP 30622MEPB25FP 30622MEPB25FP 30622MEPB25FP 30622MEPB25FP 30622MEPB25FP 30622MEPB25FP 30622MGPB23FP 30622MGPB23FP 30622MGPB23FP 30622MGPB23FP KKZ10Z KKZ09Z E-TDA7386 KKZ10Z KKZ10Z KKZ10Z KKZ10Z KKZ10Z KKZ10Z TB2904HQ KKZ09Z KKZ09Z KKZ09Z KKZ09Z KKZ09Z KKZ09Z TB2904HQ TB2904HQ TB2904HQ TB2904HQ KKZ09Z KKZ09Z KKZ09Z KKZ09Z KKZ09Z KKZ09Z KKZ09Z KKZ09Z 47K 47K 47K 47K 47K 47K 22K 22K 22K 22K 22K 22K 22K 47K 47K 47K 47K 47K 47K 47K 47K 47K 47K 47K 47K E-TDA7418 E-TDA7418 E-TDA7418 E-TDA7419 E-TDA7418 E-TDA7419 E-TDA7419 E-TDA7419 E-TDA7418 E-TDA7419 E-TDA7419 E-TDA7419 E-TDA7419 E-TDA7419 E-TDA7419 E-TDA7419 E-TDA7418 E-TDA7418 E-TDA7418 E-TDA7418 E-TDA7418 E-TDA7418 E-TDA7418 E-TDA7418 E-TDA7418 E-TDA7418 E-TDA7419 E-TDA7419 R201,202, R211,303-305, R214, R225 R226 219,220,229 312,967 221 47K YES YES 47K 47K 22K 47K 47K 47K YES YES 47K YES 47K YES YES 47K 22K YES 47K 22K 47K YES 22K 47K YES 47K YES 22K 47K YES 47K 22K YES YES 47K YES 47K YES 47K YES 47K YES 47K 47K YES 47K 47K YES YES 47K YES YES 47K YES YES 47K YES YES 47K YES YES 47K 22K YES YES YES 47K 22K YES YES YES YES 47K YES YES YES 47K 4.7K 2.2K 4.7K 4.7K 4.7K 2.2K 2.2K 2.2K 2.2K 4.7K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 4.7K 4.7K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K YES YES YES YES R491- R791, R793 R953 R954 493 792 YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES

ELECTRIC UNIT (X34-46xx-xx)
R961 R973 W5 W701

Q R

DESTIA UNIT No. MODEL NAME B D E NATION E222/S J1/J2 X34-4630-02 YES E323S X34-4630-01 YES J RDT-121 X34-4690-01 YES J KDC-135 K4 X34-4690-10 YES KDC-135CR K5 X34-4690-11 YES KDC-MP2035 K X34-4630-10 YES KDC-MP205 K2 X34-4630-12 YES KDC-MP235 K1 X34-4630-11 YES KDC-MP235CR K3 X34-4630-13 YES KDC-136 M7 X34-4690-21 YES YES KDC-MP3036 M9 X34-4630-24 YES YES KDC-MP3036AX M8 X34-4630-22 YES YES KDC-MP336/RC/S M6/M5/M7 X34-4630-24 YES YES KDC-MP336AX/AXS M3/M4 X34-4630-23 YES YES KDC-MP4036AX M1 X34-4630-21 YES YES KDC-MP436AX M2 X34-4630-22 YES YES KDC-237SA/SG E1/E2 X34-4672-78 YES YES KDC-237SAY/SGY E3/E4 X34-4672-78 YES YES KDC-W237A/G E7/E8 X34-4672-76 YES KDC-W237AY/GY E7/E8 X34-4672-77 YES KDC-W3037A/G E3/E4 X34-4672-74 YES YES KDC-W3037AY/GY E3/E4 X34-4672-75 YES YES KDC-W311A/G E5/E6 X34-4672-74 YES YES KDC-W311AY/GY E5/E6 X34-4672-75 YES YES KDC-W3537A/G E1/E2 X34-4672-72 YES YES YES KDC-W3537AY/GY E1/E2 X34-4672-73 YES YES KDC-W4037 E X34-4672-70 YES YES YES YES KDC-W4037Y E X34-4672-71 YES YES YES

YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES

IC1 : IC2 : IC3 : IC4 : IC6 : IC7 : IC8 : IC9 : IC10 : E-TDA7419 E-TDA7418 BD4913-V4 LC72725KV S-80836CNNB-J HEF4053BT NOT USED





Q1,4,7 : UMC2N Q2,8 : 2SB1565 Q3,9,101-103,402,901 : 2SC4081 Q104,105,401 : RT1N441M Q301 : RT1P144M Q302 : RT1N144M Q701-704 : RT1N430M Q705 : RT1P241M Q902,903 : 2SA1576A

D1 : S2V60 A D2 : MTZJ8.2(B) D3,101,102,104 : D1F60-5063 D4,5,109,401,404,803 : 1SS133 D7 : MTZJ12(B) D103 : AM01ZNF D105,901 : MTZJ4.7(B) D106-108,306,601-606 : MTZJ6.8(B) D110,801 : MC2848 D301 : DA204U D302 : B30-1567-05 D303 : MTZJ6.2(B) D304,305 : UDZS6.8B

S

SIGNAL LINE GND LINE B LINE

· DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments or/and units.

CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y

X34-467x-xx (4/4)

T

29
5 4 3 2 1

7

6

U

V

W

X

Y

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y
a S3 S5 f g e r d d
1GA,1GB S1 2d 1d 2n 1n 2p 1p 2r 1r 2e 1e 2c 1c 2g 1g 2m 1m 2f 1f 2a 1a 2h 1h 2j 1j 2k 1k 2b 1b S2
S10 S11

S2 S1 S4 S7 S6 S8

1
h j k b m p n c e c f a b S1

g

S9

ANODE CONNECTION
PIN NAME P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 P28 P29 P30 P31 P32 P33 P34 P35 P36 P37 P38 P39 P40 P41 P42 P43 P44 P45 P46 P47 P48 P49 3GA,3GB 2d 1d 2n 1n 2p 1p 2r 1r 2e 1e 2c 1c 2g 1g 2m 1m 2f 1f 2a 1a 2h 1h 2j 1j 2k 1k 2b 1b 2G col (Downside) 2d 1d 2n 1n 2p 1p 2r 1r 2e 1e 2c 1c 2g 1g 2m 1m 2f 1f 2a 1a 2h 1h 2j 1j 2k 1k 2b 1b col (Upside)

S10

(3GB/1GB/3GA/2G)
SWITCH UNIT (X16-386x-xx)
R80 47 1/2W

(1GA)

S51

S41

S31

S50

S30

S28

S26

S39

S38

S36

S49

S48

S46 S45

S43

S33

S29

S35

S25

S23 28 P8 P45 13 P46 S6 S5

S52

S42

S32

S27

S47

S44

S37

R81 47 1/2W R82 47 1/2W

TP165

64

63

62

61

60

59

58

57 P29 56 P28 55 3GB 54 P27 53 1GB 52 P26 51 P25 50 P24 49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

S24

66

65

P31

P21

P30

P20

P11

2G

P33

P23

P19

P18

P16

P13

P10

P35

3GA

P15

1GA

P32

P22

P34

P17

P14

P12

F+

F+

P9

3GB
3a 1a

1GB
2a 1a

3GA
2a 1a Upside

2G
2a 3a

col

3

col

Downside
P36 P37 P38

Dp
P39 P40 P41 P42 P43 P44

10

11

1

3

6

8

5

9

12

2

ED1

S3 S4 S5 S6 S7 S8 S9 S10

S13

S12

TP32 PAN SW5V

4

col 3d 3n 3p 3r 3e 3c 3g 3m 3f 3b 3k 3j 3h 3a

R21 100K

R22 100

C21 2.2

Dp 3d 3n 3p 3r 3e 3c 3g 3m 3f 3b 3k 3j 3h 3a

REMOTE CONTROL SENSOR

0V 1 GND 2 VO 5.0V 3 VCC

IC3

S14

S15

S8

S7

S9

A

R23
100K

5V 0V
7

KEY MATRIX KI1 KS1 FM KS2 AUTO KS3 KS4 KS5 2

TP56 KS1 KI2 6 1 KI3 KI4 AM 4 5 BASS BOOST AUD KI5 3 ATT TP57 KS2

60 TP49

59 TP48

57 TP46

58 TP47

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

KS1

KS3

S10

S11

S1

S13

KS2

KS4

S12

J1
ILL D GND 1 PAN5V LED+B 3 2

TP31 TP30

R78 1K

5

TP29 TP28 FL+B RTRY CCW 5 4 TP27 R19 100 6 TP26 R11 FL+B 5

KI1 KI2 KI3 KI4 KI5 6

D77 D71

RTRY CW

TP25 REMO 7

R18
1K

100

RED GRN

D79
C15 47P
8 76

7

X34J3 1/2

TP24 RST VFD RST 9 8 TP23 R13 220 10 TP22 R14 220 TP21 R15 220 12 TP20 R16 220 TP19 R17 220 TP18 PAN SW5V GARD 15 TP17 AUX R AUX GND 17 TP167 AUX L TDF DET 19 TP169 ESD GND 20 18 TP168 18 16 TP166 17 C16 0.01 16 14 TP171

61 KS5 62 KS6 TP41 63 KI1 TP42 64 KI2 5V TP43 65 0V KI3 TP44 66 KI4 TP45 67 ON KI5 5V 68 0V P1 OFF 69 P2 70 P3 71 P4 0V 72 VSS R75 73 20K 74 75 OSCO OSCI VDD

S14

S15

S16

S3

S6

S8

S2

S4

S5

S7

S9

5V 0V

41

d e c g f b a

FL+B

KS3

KS4

KS2

KS1

SRC EJECT PANEL DET

S10

S11

S13

S12

S14

S15

S16

TP58 KS3

S3

S6

S8

S2

S4

S5

S7

S9

5V 0V

11.3V 0V
S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S35 S36

TP59 KS4

IC1
VFD DRIVER

11.3V 0V

D72
77

D73
78

R72 4.7K R96 47K 76 77 78 79 80 76 R70 220 77 78 79 80 BLK DO CE CL DI
RST

6

VFD CE 11

D74
79

5V 0V

S34 S35 S36

VFD CLK

D75
80

VFD DATAS 13

5V 0V

D76

11.3V 0V
VFL S52 S51 S50 S49 S48 S47 S46 G3

11.3V 0V
S45 S44 S43 S42 S41 S40 S39 S38 S37

G1

TP70 FL SW 11.25V

11

1

10

16

18

13

12

15

S51

14

S50

S49

S48

S46

S43

S41

17

S39

S52

S45

S47

S44

S42

S38

19

11.3V

7

30

X16-386x-xx (1/2)

S37

G1

G2

G3

20

3

6

8

2

4

5

7

9

15

G2

D22 D21 D20

A

VFD DATAF

R74 4.7

C10 2.2

5.0V

14

4

7

P7

27

S22

G1

G3

G3

G2

G1

2

1

Z

AA

AB

AC

AD

KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y
1
S1

SWITCH UNIT (X16-386x-xx)
C24, DESTID2,5 A UNIT No. C D MODEL NAME 25 NATION B30-1575-05 YES YES E222/S X16-3860-01 J1/J2 B30-1575-05 YES YES E323S X16-3860-01 J KDC-MP2035 X16-3860-10 YES YES K YES YES KDC-MP205 X16-3862-73 K2 YES YES KDC-MP235 X16-3860-10 YES YES K1 YES YES KDC-MP235CR X16-3862-75 YES YES B30-1565-05 YES K3 B30-1565-05 KDC-MP3036 X16-3860-22 YES M9 B30-1565-05 YES KDC-MP3036AX X16-3862-76 YES M8 B30-1565-05 KDC-MP336/RC/S M6/M5/M7 X16-3860-22 YES B30-1565-05 YES KDC-MP336AX/AXS X16-3862-76 YES M3/M4 B30-1565-05 YES YES KDC-MP4036AX X16-3860-21 YES M1 B30-1565-05 YES KDC-MP436AX X16-3862-76 YES M2 KDC-237SA/SAY YES YES X16-3862-73 E1/E3 B30-1565-05 YES KDC-237SG/SGY X16-3862-74 E2/E4 KDC-W237A/AY YES YES X16-3862-73 E7/E7 B30-1565-05 YES KDC-W237G/GY X16-3862-74 E8/E8 YES YES KDC-W3037A/AY X16-3862-73 E3/E3 B30-1565-05 YES KDC-W3037G/GY E4/E4 X16-3862-74 KDC-W311A/AY YES YES E5/E5 X16-3862-73 B30-1565-05 YES KDC-W311G/GY X16-3862-74 E6/E6 KDC-W3537A/AY E1/E1 X16-3862-75 YES YES YES B30-1565-05 YES KDC-W3537G/GY E2/E2 X16-3862-76 YES KDC-W4037/Y E/E X16-3862-72 YES YES B30-1565-05 YES YES D3,4,6,9 D7,8 B30-1767-05 B30-1767-05 B30-1767-05 B30-1566-05 B30-1767-05 B30-1566-05 B30-1565-05 B30-1565-05 B30-1565-05 B30-1565-05 B30-1767-05 B30-1565-05 B30-1566-05 B30-1565-05 B30-1566-05 B30-1565-05 B30-1566-05 B30-1565-05 B30-1566-05 B30-1565-05 B30-1566-05 B30-1565-05 B30-1767-05 D79 J2 E11-0650-05 E11-0650-05 E11-0650-05 E11-0649-05 E11-0650-05 E11-0649-05 E11-0649-05 E11-0649-05 E11-0650-05 E11-0649-05 E11-0649-05 E11-0650-05 E11-0649-05 E11-0650-05 E11-0649-05 E11-0650-05 E11-0649-05 E11-0650-05 E11-0649-05 E11-0649-05 E11-0649-05 Q1, R1R23 R61 4 R18 2 560 560 560 YES YES YES 470 560 YES 470 YES 470 YES 470 YES 470 YES 470 YES 560 YES 470 YES YES YES 470 YES YES 470 YES YES 470 YES YES 470 YES YES 470 YES YES 470 YES YES 470 YES YES 470 470 YES 470 YES 560 YES YES YES R62 820 820 820 680 820 680 680 680 680 680 820 680 680 680 680 680 680 680 680 680 680 680 820 W1 W2 YES YES W3, 4 YES YES YES YES YES YES YES YES

S23

S20

S19

S18

S24

S22

S17

S16

B30-1566-05 B30-1566-05 B30-1565-05 B30-1565-05 B30-1565-05 B30-1565-05 B30-1565-05 B30-1566-05 B30-1565-05 B30-1566-05 B30-1565-05 B30-1566-05 B30-1565-05 B30-1566-05 B30-1565-05 B30-1566-05 B30-1565-05

1GA

YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES

S21

2

18 TP118

YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES

29

28

27

26

25

24

23

22

21

20

P9

P8

P6

P5

P3

P2

P1

F-

19

P7

P4

F-

YES

YES

3

P44

P45

P46

P47

P48

13

12

14

15

16

17

P49

ED1 IC1 IC3

: