42
TROUBLESHOOTING(VCR)
Cassette tape isn t inserted.
Is 2.5V voltage swing pulse obtain
at loadingparts IC501 pin#2?
Is 14V voltage obtained at
Capstan Motor P501 pin#2?
Replace Loading Motor.
YES
NO
NO
NO
Is 13V voltage obtained at Each
parts of Loading Motor?
Replace Loading Motor.
Check D825 and power circuit
D. No CASSETTE Loading
YES
YES
E. 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
Содержание DSI-9100
Страница 5: ...4 SCHEMATIC DIAGRAM ...
Страница 6: ...5 SCHEMATIC DIAGRAM ...
Страница 7: ...6 SCHEMATIC DIAGRAM ...
Страница 8: ...7 SCHEMATIC DIAGRAM ...
Страница 9: ...8 SCHEMATIC DIAGRAM MPEG STI5518 ...
Страница 10: ...9 SCHEMATIC DIAGRAM MPEG CIMAX ...
Страница 11: ...10 SCHEMATIC DIAGRAM MPEG MEMORY 27M ...
Страница 12: ...11 SCHEMATIC DIAGRAM MPEG VIDEO ...
Страница 13: ...12 SCHEMATIC DIAGRAM MPEG AUDIO ...
Страница 14: ...13 SCHEMATIC DIAGRAM MPEG POWER RS 232 VCR CON ...
Страница 15: ...1 Block Diagram 14 CIRCUIT INFORMATION MPEG ...
Страница 24: ...23 CIRCUIT INFORMATION MPEG EMI Interface Timing ...
Страница 59: ...58 PCB CIRCUIT BOARD 1 MAIN PCB Circuit Board ...
Страница 60: ...59 PCB CIRCUIT BOARD 2 MPEG PCB Circuit Board ...
Страница 61: ...60 INSTRUMENT DISASSEMBLY 1 PACKING ASS Y ...
Страница 62: ...61 INSTRUMENT DISASSEMBLY 2 FRONT PANEL ASSEMBLY 1 7H32D ...
Страница 63: ...62 INSTRUMENT DISASSEMBLY 2 4J32D ...
Страница 64: ...63 INSTRUMENT DISASSEMBLY 3 SET TOTAL DISASSEMBLY ...
Страница 76: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp ...