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DV7831-A2(TV)main-2007-08-01.sch-1 - Wed Dec 05 14:49:06 2007
6 5 4 3 2 1
MM2235

RA.CTL/INT.BT OUT TV(IN1) AUX(IN2) CVBS(IN3)
AREA AM STEP FM STEP SW
voltage R12 R11 AM(KHz) FM(MHz) FREQ FREQ
intercontiental END- END+
Europe 0V-0.8V OPEN 22K 522-1620 87.5-108 9K(Hz) 50K(Hz) SW1 1 1 0 C46 C47
CPU5V
D




10K
America 0.8V-1.5V 47K 10K 530-1710 87.5-107.9 10K(Hz) 200K(Hz) J6 104 104
NC SW2 1 0
0
D Japan 1.5V-2.5V 47K 22K 522-1620 76-90 10K(Hz) 100K(Hz)




R51
Russia 2.5-3.5V 22K 47K 522-1620 65-108 10K(Hz) 50K(Hz)




R49
3.5V-5V 47K OPEN 522-1620 87.5-108 10K(Hz) 50K(Hz) SD.DET
Taiwan




ACC
R218 C57




SYS5V.CTL
POWER-CTL



LAMP-CTL
0R




AF.MUTE
TFT-CTL




DVD-CTL




PLL-CLK
LAMP+/MIC- LAMP+




SW1.AV

SW2.AV




TV-CTL
104




PLL-DO

PLL-DI


PLL-CE
SYS5V




NC




BEEP
MUTE




10K
33R R58 R220




22K
TV-SCL X-SCL




47K
47K
R3




10K
1K




10K
DTH/MIC+ DTH 4K7

TV-SDA 33R R60 X-SDA 22K R17




R22
R18



R20




R14
R25
R24
C7




R28




R23
D2




R32

R43
POWER/LED SYS5V 22K R44
470R R138 ACCIN 104




NC

NC
43 IN4148




R31




LED+9V
22K
22K
22K
22K
22K
22K

22K
22K




2K2

2K2
2K2
2K2
R202 R203
12K 1K AUX-LIN




48

47
46

45
44


42
41
40

39
38
37
36

35
34
33




27
R46
R39
R38
R37
R36
R35

R34
R33
1K CN1




R80

R29


NC
C




BEEP/P11
MUTE/P10




SYS5V/P41
SW2.AV/P13
TFT.CTL/P12




DVD.CTL/P47


RA.CTL/P45


TV.CTL/P43

AF.MUTE/P42


PLL.DO/P40
PLL.DI/P77

PLL.CLK/P76
PLL.CE/P75
POWER.CTL/P46


LAMP.CTL/P44
R201 R200 R30 1
FB25
12K 1K AUX-RIN P15/IR.IN 2
IR 49 32
FWD
REV
50
P16/FWD
P17/REV
31
TFT.IN
TFT.DET
SD.DET
MUTE
3
4 C
FB24 51 TFT.DET/P72 30 5
CLOSE
SCL P50/SCL TFT.OUT/P71 TFT.OUT 6
CN5 52 ACC/P74 32 29 OPEN




SW1.AV/P14 48
SDA P51/SDA TFT.CS TFT.CS LOAD 7
TFT.IN/P73 31




TMP86FS49FG
53 28
30




MO- 8
CLOSE P52/CLOSE.SW KEY1/P67 KEY1
54 27 MO+ 9
AUX-L 1
OPEN P53/OPEN.SW KEY0/P66 KEY0 10
2 55 26 S.METER GND
AUX-R




U108
3 LOAD P54/LOAD.SW S.METER/P65 10K R13 11
END- 56 25 SYS5V 22K R132 SYS5V DVD-RST 12
4 END+ BRAKE P30/BACK RDS.SDA/P64
57 24 RDS.SDA 13
5 RESET DVDOL
BACKSIGHT P31/BACKSIGHT ST.SD/P63 ST/SD CPU5V 14
6 KEY0 58 23 GND
TFT.CLOSE