11
TROUBLESHOOTING
G. DRUM Motor stops
H. CAPSTAN doesn’t rotate
CAPSTAN doesn’t rotate.
Is 14V voltage obtained at P603
pin#2?
YES
NO
NO
NO
YES
YES
Is Capstan PWM fit to IC 601
pin#77?
Is 3.2V voltage obtained at
P603 pin#5?
Is 2~3V voltage obtained at
P603 pin#9?
Check P603 Connector and
Capstan Motor.
Check 14V.
(Q856,Q857,Q852)
Check Capstan FG
(IC 601 87).
Check R665, R664, R663,
R666, C665.
Check R661, R667, C664.
DRUM Motor stops.
Is 13V voltage obtained at
P603 pin#8?
YES
NO
NO
NO
YES
YES
Is DRUM PWM fit to IC 601
pin#76?
Is 1.2V voltage obtained at
P603 pin#12?
Check Capstan Motor and
DRUM Motor.
Check ON/OFF 13V
(D851, Q856).
Check DRUM PG/FG(IC 601 90).
Check R657, R658,C661,C668.
NO
Summary of Contents for SD-8100
Page 1: ...SERVICE MANUAL SD 8100...
Page 27: ...27 WAVEFORMS 15 9 P201 2 2 AUDIO 2 1 AUDIO Mono...
Page 29: ...29 CIRCUIT DIAGRAM 1 POWER SUPPLY SCHEMATIC DIAGRAM PAL DVD COMBO FREE...
Page 30: ...30 CIRCUIT DIAGRAM 2 AV CIRCUIT DIAGRAM...
Page 31: ...31 3 SERVO SYSCON SCHEMATIC DIAGRAM CIRCUIT DIAGRAM...
Page 32: ...32 4 DIGITAL AUDIO SCHEMATIC DIAGRAM CIRCUIT DIAGRAM...
Page 33: ...33 5 HI FI SW CIRCUIT DIAGRAM CIRCUIT DIAGRAM...
Page 34: ...34 CIRCUIT DIAGRAM 6 IF MPX PDC INPUT OUTPUT SCHEMATIC DIAGRAM...
Page 35: ...35 CIRCUIT DIAGRAM ATATI...
Page 36: ...36 CIRCUIT DIAGRAM VCR INT...
Page 37: ...37 CIRCUIT DIAGRAM CPU...
Page 38: ...38 CIRCUIT DIAGRAM DECODER...
Page 39: ...39 PCB CIRCUIT BOARD 1 1 VCR MAIN...
Page 40: ...40 PCB CIRCUIT BOARD 1 2 POWER...
Page 41: ...41 PCB CIRCUIT BOARD 1 3 LOGIC...
Page 42: ...42 PCB CIRCUIT BOARD 2 1 DVD MAIN A...
Page 43: ...43 PCB CIRCUIT BOARD 2 2 DVD MAIN B...
Page 45: ...45 INSTRUMENT DISASSEMBLY FIG 3 C PANEL FRONT DISASSEMBLY...
Page 46: ...46 INSTRUMENT DISASSEMBLY FIG 4 D LOGIC PCB DISASSEMBLY...
Page 47: ...47 INSTRUMENT DISASSEMBLY FIG 5 E DECK AND MAIN PARTS DISASSEMBLY...
Page 48: ...48 INSTRUMENT DISASSEMBLY FIG 6 F MAIN PCB DISASSEMBLY...
Page 49: ...49 INSTRUMENT DISASSEMBLY FIG 7 G MAIN CHASSIS DISASSEMBLY...