Hitachi DZ-GX20A Service Manual page 28

Troubleshooting > Problem Guide
Symptom
Pressing the REC or PHOTO
button will not start
recording.
Recording starts but stops
immediately.
LCD screen is hard to see.
Unevenness appears on LCD
monitor screen
Black dots or red, blue or
green dots always lit appear
on LCD screen or in
Viewfinder.
Focus is not correct.
During recording
Is disc-protect engaged?
Release the disc-protect.
Is the erase prevention switch on SD memory card set to the lock position?
Release the lock of erase prevention switch.
Is input image copy-guarded?
The specifications state that the DVD video camera/recorder cannot record a
copy-guarded image.
Is there any dirt, fingerprint or scratch on the disc?
Refer to "4-4-4 Cleaning disc and optical pickup" and clean the disc.
If no recovery is made, replace the disc.
Is some other AV device directly connected to the AV input/output jack of the
DVD video camera/recorder?
If the AV device is connected via several other devices, such as AV selector, the
video signal may not be transmitted correctly. In such a case, reduce the number
of devices through which the video signal is transmitted, or connect AV device
directly.
Are you attempting to record image from video game or PC?
Depending on video game or PC, image cannot be recorded on the DVD video
camera/recorder.
Has brightness of LCD screen been adjusted?
Stop recording and adjust the brightness.
Is the DVD video camera/recorder being used outdoors?
Use the viewfinder. When using LCD monitor, adjust angle so that LCD screen
is not exposed to direct sunlight.
Did you press the LCD monitor or the area around it?
If the LCD monitor is pressed, some unevenness will occur.
Release your hand and leave the LCD monitor for a while:
Normal display will be restored.
The panels used for LCD monitor and viewfinder of the DVD video camera/
recorder are produced using highly precise technology. However, 0.01% or less of
total pixels may not light (black dots) or may remain lit (red, blue, green dots).
(The effective amount of pixels on LCD panel is 99.99% or more.) This shows the
limitations of the current technology, and does not indicate a fault that will
interfere with the operation of LCD panel or operation of the DVD video camera/
recorder.
Is it difficult to use auto-focus with the subject?
Focus manually.
Does "MF" appear?
The DVD video camera/recorder is set to manual focus. Focus the subject
manually, or release manual focus.
Is the diopter control of viewfinder correctly adjusted?
Adjust the diopter control.
In cases other than the above, set the power switch to "OFF", and then reset it to
a position other then "OFF".
4 - 3
Cause and Correction