Service Manuals, User Guides, Schematic Diagrams or docs for : . Rare and Ancient Equipment MYSTERY Car Audio Mystery MMD-4000S DV7834 - Main PCB SCH
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download DV7834 - Main PCB SCH documenatation <<
Text preview - extract from the document
DV7831-A2(TV)main-2007-08-01.sch-1 - Thu Sep 27 16:25:20 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 ◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo