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Is C.S.. DATA CLOCK signal
Input pin#53,54,55 of IC401?
Is signal output from IC401
Pin#14?
Check IC601 pin#70,72,74
Is 5V supplied at IC401
pin#68?
Check and Replace IC401.
Is signal input into IC401
Pin#22?
Is composite video signal
output from IC401 pin#26?
Is composite video signal
Input into IC401 pin#34?
Is 5V supplied at IC401
pin#23,44,45,47?
Change IC401
Is composite video
Signal output from
IC401 pin#39?
Check Power circuit.
Check OSD circuit
B. Playback picture doesn’t appear
YES
YES
YES
YES
YES
YES
YES
Playback picture doesn’t
appear.
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
Is envelope output from
IC401 pin#14
Is VIDEO SW Pulse input at
IC401 pin#57?
Check IC601 pin#18
Clean head or change head
YES
Check Power circuit.
NO
Change IC401
Is composite video signal
output from IC401 pin#36?
Change IC401
Is composite video
Signal output from
IC401 pin#39?
Replace IC401
Does X401 crystal
(3.58MHz) oscillate?
Change IC401
NO
YES
YES
YES
Содержание DVCR101
Страница 1: ...DVCR101 DVD VCR PLAYER SERVICE MANUAL...
Страница 41: ...40 2 TOP COVER REMOVAL...
Страница 42: ...41 3 LOGIC PCB DISASSEMBLY...
Страница 43: ...42 4 DECK AND MAIN PARTS DISASSEMBLY...
Страница 44: ...43 5 MAIN PCB DISASSEMBLY...
Страница 45: ...44 6 MAIN CHASSIS DISASSEMBLY...
Страница 46: ...45 7 EXPLODE VIEW CIRCUIT DIAGRAM...
Страница 47: ...46...
Страница 48: ...47...
Страница 49: ...48...
Страница 50: ...49...
Страница 51: ...50...