11
TROUBLESHOOTING
10
TROUBLESHOOTING
Cassette tape isnÕt inserted.
Is 5V voltage obtained at Loading
parts IC501 pin#63?
Is 14V voltage obtained at
Capstan Motor P501 pin#2?
Check at EVER 14V
Check Q850.
Connect Capstan and Loading Motor.
Check connector and Capstan Motor.
YES
NO
NO
NO
Is 13V voltage obtained at Each
parts of Loading Motor?
Replace Loading Motor.
Check D851 and POWER circuit.
E. No CASSETTE Loading
YES
YES
F. AUTO STOP in Playback mode
VCR stops automatically in
playback mode.
Check R544,C516 and P501
pin#11.
Check S501, S502 REEL Sensor.
Is D.PG/FG pulse at IC501
pin#90 normal ?
Is C. FG pulse at IC501 pin#87
normal ?
Is there REEL Pulse at IC501
pin#79, 80?
Check and replace IC501.
NO
YES
YES
YES
NO
Check C.FG(R543,C517) and
P501 pin#1.
NO
G. DRUM Motor stops
H. CAPSTAN doesnÕt rotate
CAPSTAN doesnÕt rotate.
Is EVER 14V voltage obtained
at P501 pin#2?
YES
NO
NO
NO
YES
YES
Is Capstan PWM fit to
IC501 pin#77?
Is 3.2V voltage obtained
at P501 pin#5?
Is 2.7V voltage obtained
at P501 pin#9?
Check P501 Connector and
Capstan Motor.
Check EVER 14V.
(Q850)
Check Capstan FG
(IC 501 pin# 87).
Check
R541,R540,R539,R538,C518
Check R537,R536,C521
DRUM Motor stops.
Is 14V voltage obtained at P501
pin#8?
YES
NO
NO
NO
YES
YES
Is DRUM PWM fit to IC 501
pin#76?
Is 2.6V voltage obtained at
P501 pin#12?
Check Capstan Motor and
DRUM Motor.
Check EVER 14V
(Q850).
Check DRUM PG/FG
(IC 501 pin# 90).
Check R534,R535,C519,C520.
NO
Summary of Contents for DF-8100
Page 5: ...7 TROUBLESHOOTING 6 TROUBLESHOOTING B Digital Board...
Page 16: ...28 CIRCUIT DIAGRAM 1 SERVO SYSCON SCHEMATIC DIAGRAM DVDR VCR...
Page 17: ...29 CIRCUIT DIAGRAM 2 AV IC SCHEMATIC DIAGRAM DVDR VCR...
Page 18: ...30 CIRCUIT DIAGRAM 3 Hi Fi SW IN OUT CIRCUIT SCHEMATIC DIAGRAM DVDR VCR...
Page 19: ...31 4 ADC DAC VIDEO AMP CIRCUIT DIAGRAM...
Page 20: ...32 CIRCUIT DIAGRAM 5 PIF CIRCUIT DIAGRAM...
Page 21: ...33 CIRCUIT DIAGRAM 6 FRONT PART SCHEMATIC DIAGRAM...
Page 22: ...34 CIRCUIT DIAGRAM 7 POWER SUPPLY SCHEMATIC DIAGRAM...
Page 23: ...35 CIRCUIT DIAGRAM 8 8602 CODEC...
Page 24: ...36 CIRCUIT DIAGRAM 9 TERMINATION...
Page 25: ...37 CIRCUIT DIAGRAM 10 DDR SDRAM...
Page 26: ...38 CIRCUIT DIAGRAM 11 RST AV ELINK CONNECTOR...
Page 27: ...39 CIRCUIT DIAGRAM 12 FLASH ATAPI...
Page 28: ...40 CIRCUIT SCHEMATICS 13 1394 PHY...
Page 29: ...41 CIRCUIT SCHEMATICS 14 POWER CONNECTOR...
Page 30: ...42 CIRCUIT SCHEMATICS 15 VIDEO DECORDER SAA7115...
Page 31: ...43 PCB CIRCUIT BOARD 1 MAIN PCB...
Page 32: ...44 PCB CIRCUIT BOARD 2 FRONT PANEL PCB...
Page 33: ...45 PCB CIRCUIT BOARD 4 MPEG PCB 3 POWER PCB...
Page 34: ...47 INSTRUMENT DISASSEMBLY 46 INSTRUMENT DISASSEMBLY...
Page 43: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp...
