Hitachi DZ-GX20A Service Manual page 53

Troubleshooting > Trouble Diagnosis
No audio can be recorded.
Can no audio be
Yes
recorded from either
built-in or external
microphone?
No
Can audio from
Yes
built-in microphone
be recorded?
No
Replace the microphone
or IC6201.
No video signal from AV/S input/output jack?
Is either camera
No
recorded image or
playback image
output?
Yes
Does image appear
No
in viewfinder or on
LCD monitor?
Yes
Replace IC6301.
Block noise occurs during recording of video.
Replace the MAN
circuit board.
Replace IC6201.
Replace IC6101.
Replace the MAN
circuit board.
4 - 28
No image appears in viewfinder.
Is video signal output
No
from the AV/S input/
output jack?
Yes
No
Does image appear
on the LCD monitor?
Yes
Replace IC3701 or
EVF unit.
No
Is playback image output?
Yes
Replace the MAN
circuit board.
Date or time is not set.
No
Voltage at backup
battery: 3 V DC?
Yes
Replace IC4006.
Refer to "No video signal
from AV/S input/output
jack".
Refer to "No image
appears on LCD monitor".
Refer to "Camera
recorded image is
abnormal".
Replace the backup
battery.