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ORDER NO.
CRT4035
DEH-P5050UB/XN/ES

CD RECEIVER

DEH-P5050UB /XN/ES
DEH-P5050UB/XN/ES1
DEH-P5090UB/XN/ID
This service manual should be used together with the following manual(s):
Model No. Order No. Mech.Module Remarks

CX-3240 CRT4050 S10.5COMP2-iPod/USB CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly




For details, refer to "Important Check Points for Good Servicing".


PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2007
K-ZZW. OCT. 2007 Printed in Japan
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SAFETY INFORMATION
CAUTION
A
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfe.
Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair
complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so
and refer the repair to a qualified service technician.



- Safety Precautions for those who Service this Unit.
When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable
results.
B

Caution:
1. During repair or tests, minimum distance of 13 cm from the focus lens must be kept.
2. During repair or tests, do not view laser beam for 10 seconds or longer.




CAUTION
Danger of explosion if battery is incorrectly replaced.
Replaced only with the same or equivalent type recommended by the manufacture.
C Discord used batteries according to the manufacture's instructions.




D




E




F




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[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.
A
1. Product safety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.


1 Use specified parts for repair.

Use genuine parts. Be sure to use important parts for safety.

2 Do not perform modifications without proper instructions.

Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TV interference and foreign noise.

3 Make sure the soldering of repaired locations is properly performed. B

When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity. (Refer to the example)

4 Make sure the screws are tightly fastened.

Please be sure that all screws are fastened, and that there are no loose screws.

5 Make sure each connectors are correctly inserted.

Please be sure that all connectors are inserted, and that there are no imperfect insertion.

6 Make sure the wiring cables are set to their original state.

Please replace the wiring and cables to the original state after repairs.
In addition, be sure that there are no pinched wires, etc. C

7 Make sure screws and soldering scraps do not remain inside the product.

Please check that neither solder debris nor screws remain inside the product.

8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.

Damaged power cords may lead to fire accidents, so please be sure that there are no damages.
If you find a damaged power cord, please exchange it with a suitable one.

9 There should be no spark traces or similar marks on the power plug.

When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if necessary.

a Safe environment should be secured during servicing. D

When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.

2. Adjustments
To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.


3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
E


4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.


5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especially if it is specified in this manual.


F




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CONTENTS
SAFETY INFORMATION..................................................................................................................................... 2
1. SERVICE PRECAUTIONS ............................................................................................................................... 5
A
1.1 SERVICE PRECAUTIONS ........................................................................................................................ 5
1.2 NOTES ON SOLDERING .......................................................................................................................... 5
2. SPECIFICATIONS ............................................................................................................................................ 6
2.1 SPECIFICATIONS ..................................................................................................................................... 6
2.2 DISC/CONTENT FORMAT ........................................................................................................................ 8
2.3 PANEL FACILITIES.................................................................................................................................... 9
2.4 CONNECTION DIAGRAM ....................................................................................................................... 12
3. BASIC ITEMS FOR SERVICE........................................................................................................................ 13
3.1 CHECK POINTS AFTER SERVICING..................................................................................................... 13
3.2 PCB LOCATION....................................................................................................................................... 13
3.3 JIGS LIST ................................................................................................................................................ 14
4. BLOCK DIAGRAM.......................................................................................................................................... 16
B 5. DIAGNOSIS.................................................................................................................................................... 19
5.1 OPERATIONAL FLOWCHART ................................................................................................................ 19
5.2 ERROR CODE LIST ................................................................................................................................ 20
5.3 CONNECTOR FUNCTION DESCRIPTION ............................................................................................. 22
6. SERVICE MODE ............................................................................................................................................ 23
6.1 CD TEST MODE ...................................................................................................................................... 23
7. DISASSEMBLY .............................................................................................................................................. 25
8. EACH SETTING AND ADJUSTMENT ........................................................................................................... 30
8.1 CD ADJUSTMENT................................................................................................................................... 30
8.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT.................................................... 31
8.3 PCL OUTPUT CONFIRMATION.............................................................................................................. 33
9. EXPLODED VIEWS AND PARTS LIST.......................................................................................................... 34
C
9.1 PACKING ................................................................................................................................................. 34
9.2 EXTERIOR(1) .......................................................................................................................................... 36
9.3 EXTERIOR(2) .......................................................................................................................................... 38
9.4 CD MECHANISM MODULE..................................................................................................................... 40
10. SCHEMATIC DIAGRAM ............................................................................................................................... 42
10.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) ........................................................................... 42
10.2 KEYBOARD UNIT.................................................................................................................................. 48
10.3 CD MECHANISM MODULE(GUIDE PAGE) .......................................................................................... 50
10.4 WAVEFORMS ........................................................................................................................................ 56
11. PCB CONNECTION DIAGRAM.................................................................................................................... 60
11.1 TUNER AMP UNIT................................................................................................................................. 60
D 11.2 KEYBOARD UNIT .................................................................................................................................. 64
11.3 CD CORE UNIT(S10.5COMP2-iPod) .................................................................................................... 66
11.4 PANEL UNIT .......................................................................................................................................... 68
12. ELECTRICAL PARTS LIST .......................................................................................................................... 69




E




F




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1. SERVICE PRECAUTIONS
1.1 SERVICE PRECAUTIONS
A


1. You should conform to the regulations governing
the product (safety, radio and noise, and other
regulations), and should keep the safety during
servicing by following the safety instructions
described in this manual.
2. Before disassembling the unit, be sure to turn off
the power. Unplugging and plugging the connectors
during power-on mode may damage the ICs inside
the unit.
3. To protect the pickup unit from electrostatic discharge
during servicing, take an appropriate treatment B

(shorting-solder) by referring to "the DISASSEMBLY".
4. After replacing the pickup unit, be sure to check the
grating.
5. Be careful in handling ICs. Some ICs such as MOS
type are so fragile that they can be damaged by
electrostatic induction.
6. Sheet (Mechanism cover), CNM9404 can not be reused
if you remove it.



C




1.2 NOTES ON SOLDERING
D

For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.

Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 C in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.

Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden). E


The following lead-free solders are available as service parts:
Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.




F




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2. SPECIFICATIONS
2.1 SPECIFICATIONS
A 1




B




C




D




E




F




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A




B




C




D




E




F




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2.2 DISC/CONTENT FORMAT


A




B




C




D




E




F




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2.3 PANEL FACILITIES

A




B




C




D




E




F




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A




B




C




D




E




F




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Fixing the front panel A
If you do not operate the removing and attaching the front panel function, use the supplied
fixing screws and holders to fix the front panel to this unit.
1. Attach the holders to both sides of the front panel.

Holder
CXX1644 Holder
CXX1645

B




2. Replace the front panel to the unit.



C




3. Flip the holders into upright positions.



D




4. Fix the front panel to the unit using fixing screws.



E
Fixing Screw
XXX7020




F




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2.4 CONNECTION DIAGRAM


A




B




C




D




E




F




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3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
A
To keep the product quality after servicing, please confirm following check points.

No. Procedures Item to be confirmed
1 Confirm whether the customer complain has The customer complain must not be
been solved. reappeared.
If the customer complain occurs with the Display, audio and operations must be
specific media, use it for the operation check. normal.
2 CD Play back a CD. No malfunction on display, audio and
(Track search) operation.
3 FM/AM tuner Check FM/AM tuner action. Display, audio and operations must be
(Seek, Preset) normal. B
Switch band to check both FM and AM.
4 Check whether no disc is inside the product. The media used for the operating check must
be ejected.
5 Appearance check No scratches or dirt on its appearance after
receiving it for service.

See the table below for the items to be checked regarding audio:

Item to be checked regarding audio
Distortion
Noise
C
Volume too low
Volume too high
Volume fluctuating
Sound interrupted




3.2 PCB LOCATION

D
C Panel Unit
A Tuner Amp Unit




B Keyboard Unit
E
Unit Number : QWM3013(ES,ES1)
Unit Number : QWM3016(ID)
Unit Name : Tuner Amp Unit
Unit Number : (ES,ES1)
Unit Number : (ID)
Unit Name : Keyboard Unit
Unit Number : CWM9835
D CD Core Unit Unit Name : Panel Unit
(S10.5COMP2-iPod) Unit Number : CWX3526 F
Unit Name : CD Core Unit
(S10.5COMP2-iPod)

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3.3 JIGS LIST


A - Jigs List
Name Jig No. Remarks
Test Disc TCD-782 Checking the grating
L.P.F. Checking the grating (Two pieces)




- Grease List
B Name Grease No. Remarks
Grease GEM1024 CD Mechanism Module
Grease GEM1045 CD Mechanism Module




Before shipping out the product, be sure to clean the
C
following portions by using the prescribed cleaning
tools:
Portions to be cleaned Cleaning tools
CD pickup lenses Cleaning liquid : GEM1004
Cleaning paper : GED-008




D




E




F




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A




B




C




D




E




F




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4. BLOCK DIAGRAM
A TUNER AMP UNIT
A

VDD




TUNPDO




TUNPDI
TUNPCK
7 6 13 5 10 9 8 11 14 18 19 20 21




CE2




ROM_VDD




SL


DI
CK
CE1



NC




DO

NC

NC

NC

NC
NC
FM/AM TUNER UNIT




IC 3 EEPROM IC 5
5.0V 5V t 3.3V


B OSC LPF

ANTENNA ANT401
AM ANT FMRF
1
1 ATT
2,3 Rch
24
IC 2
2.5V
FM ANT IC 1
3 3.3V
ATT Lch
23
FMRF MIXER, IF AMP DET, FM MPX
RF adj
ANT adj
V




T51 CF52




C
AUDIOGND




IC 4
OSCGND




VDD_3.3
RFGND




3.3V 3.3V t 2.5V 2.5V
DGND




VCC
NC




2 12 15 22 16 4 17 TUNL

CDL

3.3V BUS+L

BUS-L
AUXL
CN101 IP-BUS DRIVER AUXG
IC101
7 BUSL+ HA12241FP
11 BUSL-

IP-BUS 5 BUS-5 BUS- DIN1 1 TX 28
TX
1 BUS+ 6 BUS+ ROUT 2 RX 27
RX
8 19
STBY RX2 SYSTEM
Q101 8 CONTROLLER
IC 601(2/2)
BUP IPPW 52
IPPW PEG403A
46
38 SYSPW
Q102 ASENBO 39
CN151 MUTE
D 6 OEL
5 AUXL
AUX
4 AUXG OEL+B

USB5V
REGULATOR
IC501
BD9781HFP
D CD CORE UNIT(S10.5COMP2-iPod) CN521 BUP
1
VIN
48
OELPW
PICKUP UNIT RF-AMP, CD DECODER, 1
VBUS 5
VOUT VIN
4 2
SW
MP3/WMA DECODER, 5 7 26 68
(P10.5)(SERVICE) DIGITAL SERVO / DATA PROCESSOR CPU, IC521
6 FB
INV
EN SYNC AMPPW

VDD2 USB HOST CONTROLLER R5523N001B
LASER CN101
DIODE LD- 141 USB EN 1 22
USBCTL
15 15 LD B
Q101 USBXTAL 1 FLG 3 23
FLG
MD 142 X205
5 5 PD D-
REFO 48MHz 2
VREF 8 133 /USBXTAL 2 50
8 REFOUT FLPILM
Q102 3 D+
AC,BD,E,F 8
HOLOGRAM EJTIN
UNIT VCC VDD2 DSENS
S801
FOM FOM
3 3 CD 39 9
FOP FOP /PUEN DSENS
FOCUS ACT. 2 2 DRIVER ILM
E MONITOR
DIODE TRACKING ACT.
TOP
1 1 TOP CN701 CN701
TOM
4 4
TOM IC301 5 DP DP
LD+ BA5839FP IC201 DP 16 4
Q82
14 14 TD,FD
12
FOM
PE5611B DM
4 DM
17 3 DM
11 SD,MD LOUT CDL
FOP 55
14 LOUT 13 7
TOP VDD
13 49
TOM ILMPW
VDD2 VDD 3.3V REGULATOR
SPINDLE
MOTOR M Q201
16 VDD CDVDD 3 IC780 1
SOP 22 28 VDD3 9 11 VDD 36
LOEJ LOEJ NJM2885DL1-33
15 DIM
SOM 21 20
18
LOAD/ CARRIAGE LCOP CLCONT CLCONT
/ADENA
17
MOTOR M 17
LCOM CONT