40
Is the signal from pin
$
of P302
fed to pin
^
of PA02?
C. Troubleshooting of preamp circuit in the record mode.
NO
Check P501, P504
and PCB pattern
YES
Is the modulating luminance
signal from pin
^
of PA02
fed to pin
1
of ICA01?
NO
Check CA19 and pattern
YES
Is the down converted colour
signal from pin
$
of PA02
fed to pin
)
of ICA01?
NO
Check pattern
YES
Is ON/OFF 5V supply to pin
5
of ICA01 at 5 volts?
NO
Check ON/OFF 5V
YES
Is REC (H) supply to pin
&
of ICA01 at 5 volts?
NO
Check REC (H)
YES
Is TRICK (H) supply to pin
@
of ICA01 at zero volt?
NO
Check TRICK (H)
YES
Change drum
YES
Is the signal from pin
)
and
pin
1
fed to pin
7
(SP mode)
and pin
8
(LP mode) of ICA01?
NO
Check ICA01
* ICA01 : LA7416
Содержание DV-K882SY-AN
Страница 68: ...SECTION 8 CIRCUIT DIAGRAM 8 1 CONNECTION DIAGRAM 66 ...
Страница 69: ...8 2 POWER CIRCUIT 67 ...
Страница 70: ...8 3 LOGIC CIRCUIT 68 ...
Страница 71: ...8 4 MAIN CIRCUIT 69 ...
Страница 72: ...8 5 VIDEO CIRCUIT 70 ...
Страница 73: ...8 6 HEAD AMP CIRCUIT 71 ...
Страница 74: ...8 7 SECAM CIRCUIT 72 ...
Страница 75: ...8 8 Hi Fi AUDIO CIRCUIT 73 ...
Страница 76: ...8 9 PIF CIRCUIT 74 ...
Страница 77: ...8 10 IF MODULE CIRCUIT 75 ...
Страница 78: ...8 11 A V SCART CIRCUIT 76 ...
Страница 79: ...8 12 OSD CIRCUIT PDC CIRCUIT 77 ...
Страница 80: ...8 13 REMOCON CIRCUIT 78 ...