51
TROUBLESHOOTING(VCR)
C. No Hi-Fi playback in record/playback mode (REC MODE)
Are there Audio signal
at IC251 pin#6~9?
Is FM OSC signal at IC251
pin#36?
Check DTT CVBS
Check input AV JACK.
Replace DRUM.
YES
NO
NO
NO
Is FM OSC signal at P401 pin#2?
Replace IC251
YES
HEAD CLEANING.
YES
D. No NORMAL AUDIO playback (PLAY MODE)
Is Playback Audio signal at
IC301 pin#11?
Replace IC251.
YES
NO
NO
Is there Playback Normal Audio
signal at IC251 pin #17,18?
Check A/C HEAD and IC301
YES
Check Output JACK.
YES
Is there normal Audio signal at
IC251 pin#17, 18?
NO
Check power circuit.
NO
Voltage at IC251 pin#34 is 12V?
Voltage at IC251 pin#40 and at
IC301 pin#18 is 5V?
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 ...