Hitachi DV-RV8500E/UK Service Manual page 33

Dvd video recorder with video cassette recorder
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Details of Servicing and Troubleshooting > Troubleshooting
No Hi-Fi audio can be recorded
No
IIs power supplied to
IC801-34, 40?
Yes
Are control signals
No
supplied to
IC801-42, 43?
Yes
No
Does audio signal
appear at IC801-16, 17?
Yes
No
Does FM audio signal
appear at IC801-36?
Yes
Check P3D01 connector.
(If the connector is normal,
replace the cylinder.)
(6) TUNER circuit
No image during RF output
No
Is 5 V supplied to
TU701-1?
Yes
No
Is Hi signal supplied
to TU701-4?
Yes
No
Does video signal
appear at TU701-6?
Yes
Replace TU701.
Check 5.0V and
REG12V lines.
Check
SYSTEM microprocessor
(IC501), and replace
if necessary.
Check to see if audio
input signal appears
for each input source
(IC801-2,3,4,5,6,7,8,9,10,11).
Replace IC801.
Check 5.0V line.
Check voltage at
IC501-26
(Hi: Tuner mode).
Check wiring between
IC901-23 and TU701-6.
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