Hitachi DZ-HS303A Service Manual page 65

Troubleshooting > Trouble Diagnosis
No sound from speaker during playback of video
Is audio signal output
No
from the AV input/
output jack?
Yes
No
Check damege to
PG6001?
Yes
Replace the MAN
circuit board.
No audio can be recorded from microphone.
Is audio from both
Yes
built-in and external
microphones
unrecordable?
No
Is audio only from
Yes
built-in microphone
unrecordable?
No
Check the external
mic. amp. circuit on the
AVJ-H circuit barad
Refer to "No audio signal
from AV input/output jack".
Speaker faulty:
Replace the R case.
Replace IC6003.
Replace the microphone
unit or IC1800.
4 - 32
No audio from AV input/output jack.
No sound from
No
speaker during
playback of video?
Yes
AVJ-H/L circuit faulty
Replace the MAN
circuit board.