Sharp VC-H92HM Serviceanleitung Seite 61

FLOW CHART NO.20 RECORDING MODE (LUMINANCE) TROUBLESHOOTING
Recording is not possible. (E-E mode is possible.)
Is there a signal at pin (47) of IC401 Check parts around pins (47) and
? (48) of 1C401.
YES
, ; Check between pin (52) of 1C401
Is there a signal at pins (27) and :
(25) of 1€301 ?
and all the way up thru to pins (27)
YES
Are pins (16) and (28) of IC301 at
SV and 8V respectively ?
YES
and (25) of IC301.
is there a signal at pin (7) (SP
Check PC5V and bias CTL8V lines.
model) or pin (8) (EP mode) of
Check diodes.
1301 ?
0D301~D302, D330~D331
YES
Check upper and lower drum.
NO
Check R224 (REC
FM level Control)
Recording is possible but without colour. (E-E mode is possible.)
fs there signal at pin (56) of [C401 ?
YES
Is there signal at pin (2) of IC401 ?
YES
Is there signal at pin (27) (SP mode) NO
or pin (25) (EP mode) of 1C301 ?
Check between pin (55) of 1C401
and the way up thru to pin (56) of
C401,
Check parts around pin (4) of
C401.
Check between pin (2) of 1C401
and the way up thru to pin (27) (SP
mode) or pin (25) (EP made) of
1C301 ?
W9SCGH-DA
WSLGH-DA
JWOD L6GH-DA
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1a
OW
1g