43
TROUBLESHOOTING(VCR)
F. DRUM Motor stops
G. CAPSTAN doesn t rotate
CAPSTAN doesn t 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.
(D525).
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
(D525).
Check DRUM PG/FG
(IC 501 pin# 90).
Check R534,R535,C519,C520.
NO
Summary of Contents for DSI-9100
Page 5: ...4 SCHEMATIC DIAGRAM ...
Page 6: ...5 SCHEMATIC DIAGRAM ...
Page 7: ...6 SCHEMATIC DIAGRAM ...
Page 8: ...7 SCHEMATIC DIAGRAM ...
Page 9: ...8 SCHEMATIC DIAGRAM MPEG STI5518 ...
Page 10: ...9 SCHEMATIC DIAGRAM MPEG CIMAX ...
Page 11: ...10 SCHEMATIC DIAGRAM MPEG MEMORY 27M ...
Page 12: ...11 SCHEMATIC DIAGRAM MPEG VIDEO ...
Page 13: ...12 SCHEMATIC DIAGRAM MPEG AUDIO ...
Page 14: ...13 SCHEMATIC DIAGRAM MPEG POWER RS 232 VCR CON ...
Page 15: ...1 Block Diagram 14 CIRCUIT INFORMATION MPEG ...
Page 24: ...23 CIRCUIT INFORMATION MPEG EMI Interface Timing ...
Page 59: ...58 PCB CIRCUIT BOARD 1 MAIN PCB Circuit Board ...
Page 60: ...59 PCB CIRCUIT BOARD 2 MPEG PCB Circuit Board ...
Page 61: ...60 INSTRUMENT DISASSEMBLY 1 PACKING ASS Y ...
Page 62: ...61 INSTRUMENT DISASSEMBLY 2 FRONT PANEL ASSEMBLY 1 7H32D ...
Page 63: ...62 INSTRUMENT DISASSEMBLY 2 4J32D ...
Page 64: ...63 INSTRUMENT DISASSEMBLY 3 SET TOTAL DISASSEMBLY ...
Page 76: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp ...