21
TROUBLESHOOTING
Are there Audio signal
at IC251 pin#9,14
#10, 15
#2,4?
Is there REC(H)
at IC251 pin#29, 30?
Check input LINE1 JACK.
Check input LINE2 JACK.
Check ICD02(DVD).
Replace IC251
YES
NO
NO
NO
Is FM OSC signal at IC251 pin#21?
Is FM OSC signal at P301 pin#2?
Check IC601 pin#22
c. No Hi-Fi playback in record/playback mode(REC MODE)
YES
YES
Replace DRUM
NO
HEAD CLEANING.
YES
D. No NORMAL AUDIO playback (PLAY MODE)
Is Playback Audio signal at
IC301 pin#10?
Replace IC251.
YES
NO
NO
Is there Playback Normal Audio
signal at IC251 pin#53,57?
Check A/C HEAD and IC301
YES
Check Output JACK.
YES
Is there normal Audio signal at
IC251 pin#53, 57?
NO
Check power circuit.
NO
Voltage at IC251 pin#58 is 12V?
Voltage at IC251 pin#40 and at
IC301 pin#77 is 5V?
Summary of Contents for DV6T834
Page 31: ...30 CIRCUIT DIAGRAM 1 POWER SUPPLY SCHEMATIC DIAGRAM VE 1 5 COMBO ...
Page 32: ...31 CIRCUIT DIAGRAM 2 SERVO SYSCON SCHEMATIC DIAGRAM VE 1 5 COMBO ...
Page 33: ...32 CIRCUIT DIAGRAM IC301 3 VIDEO AUDIO SCHEMATIC DIAGRAM Hi Fi VE 1 5 COMBO ...
Page 34: ...33 4 DVD AUDIO VIDEO SCHEMATIC DIAGRAM VE 1 5 COMBO CIRCUIT DIAGRAM ...
Page 35: ...34 CIRCUIT DIAGRAM 5 Hi Fi IN OUT SCHEMATIC DIAGRAM VE 1 5 COMBO ...
Page 36: ...35 CIRCUIT DIAGRAM 6 DQL 1003 1103 1203 ALI M3351 MPEG IC ...
Page 37: ...36 CIRCUIT DIAGRAM 7 DQL 1003 1103 1203 RF MOTOR_DIRIVERS ...
Page 38: ...37 CIRCUIT DIAGRAM 8 DQL 1003 1103 1203 FLASH SDRAM ...
Page 39: ...38 CIRCUIT DIAGRAM 9 DQL 1003 1103 1203 AUDIO_DAC VIDEO_CHANNEL ...
Page 41: ...40 PCB CIRCUIT BOARD 1 1 VCR MAIN ...
Page 42: ...41 PCB CIRCUIT BOARD 1 2 POWER ...
Page 43: ...42 PCB CIRCUIT BOARD 1 3 DVD MAIN ...
Page 49: ...48 INSTRUMENT DISASSEMBLY G Explode view ...
Page 50: ...49 INSTRUMENT DISASSEMBLY 2 DVD Module DAEWOO DQL 10XX DISASSEMBLY A DECK TOTAL DVD AS ...
Page 51: ...50 INSTRUMENT DISASSEMBLY B DRIVE UNIT AS ...
Page 52: ...51 INSTRUMENT DISASSEMBLY C DRIVE UNIT HOLDER AS ...
Page 53: ...52 INSTRUMENT DISASSEMBLY D PICK UP TENSION AS ...