Daewoo DV-K882SY-AN, Руководство по обслуживанию

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39
Is the signal from heads fed to pin
!
and pin
#
(SP mode) or pin
%
and
pin
&
(LP mode) of PA01?
B. Troubleshooting of preamp in the playback mode.
NO
Check drum and
deck mechanism
YES
Is ON/OFF 5V from pin
5
of
PA01 supply to pin
5
of
ICA02 at 5 volts?
NO
Check ON/OFF 5V
YES
Is REC (H) from pin
2
of PA02
supply to pin
&
of ICA01
at zero volt?
NO
Check REC (H)
YES
Is H.A SW from pin
(
of
PA02 supply to pin
$
of ICA01?
NO
Check H. A SW
YES
Is video sw from pin
)
of
PA02 supply to pin
%
of ICA01?
NO
Check video SW
YES
Is TRICK (H) from pin
&
of PA02
supply to anode of DA01
at zero volt?
NO
Check TRICK (H)
YES
To VIDEO circuit
YES
Is the signal from pin
!
and pin
#
(SP mode) or pin
%
and pin
&
(LP
mode) fed to pin
)
of ICA01?
NO
Change ICA01
YES
Is the signal from pin
)
fed to
pin
@
of PA02?
NO
Check PB EQ
* • REC (H) : "HIGH" in the record mode
"LOW" in the EE and PB mode.
• H. A SW : "LOW" in the SP Mode.
"HIGH" in the LP mode.
• TRICK(H): "HIGH" in the trick play.
"LOW" except trick play.
* ICA01:LA7416