54
DV-NC65H/S
DV-NC70H
FLOW CHART NO.18
2
Only REC mode inoperative
YES
NO
NO
YES
YES
YES
NO
YES
NO
NO
YES
YES
YES
NO
NO
YES
NO
NO
YES
YES
NO
Are REC and/or PB mode inoperative?
Check peripheral circuit of X701.
1
Only PB mode inoperative
Does PB CTL signal appear at
pin(76) of IC701 (TP204)?
Does AA-MH harness normally?
Does A/C head operate normally?
Replace A/C head.
Check AC-MC connector and
capstan FG signal line.
Check capstan motor unit and/or
replace.
Is there capstan AFC and APC
at pins(31) and (33) of IC701?
Replace IC701.
Replace AA-MH harness.
Readjust the A/C head height.
Is there 14.3MHz oscillation at
pins(37) and (38) of IC701?
Does the capstan FG signal appear
at pin(67) of IC701?
Dose pin(29) of IC701 operate
normally?
Check
1
.
Check
2
.
Replace IC701.
Is there REC CTL signal output at
pins(74) and (75) of IC701?
Is the V-SYNC signal (reference)
at pin(50) of IC701?
Check peripheral circuit of
C715~716 and R708.
Is there capstan AFC and APC
at pins(31) and (33) of IC701?
Capstan servo does not function.
Содержание DV-NC65H
Страница 63: ...63 DV NC65H S DV NC70H M E M O ...
Страница 78: ...92 DV NC65H S DV NC70H A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 13 10 DVD OPERATION CIRCUIT SCHEMATIC DIAGRAM ...
Страница 85: ...104 DV NC65H S DV NC70H A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 TERMINAL PWB SIDE A Symbol ...
Страница 87: ...106 DV NC65H S DV NC70H A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 DVD OPERATION PWB SIDE A Symbol SIDE B ...
Страница 91: ...112 DV NC65H S DV NC70H A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 M E M O ...
Страница 112: ...133 DV NC65H S DV NC70H Ref No Part No Description Code Ref No Part No Description Code ...
