Troubleshooting - Hitachi 32LD7200 Service Manual

7. Troubleshooting

How to get to Burn-in mode
This mode displays the test patterns of some single color raster in turn. These signals are from built-in generator
of LCD panel. So it can be presumed that maybe the panel has some trouble when the screen of Burn-in mode
is abnormal.
Using the center of the upper control buttons with the set turned off (standby) can activate this mode.
Press the SUB-POWER( ) button, INPUT SELECT(
time, and hold for more than 5 seconds.
The set turns on with single color raster and the OSD of [BURN IN: ON].
To escape from this mode, press the SUB-POWER( ) button, INPUT SELECT(
same time, and hold for more than 5 seconds. Burn-in mode will be released.
How to recover the remote and the center of the upper key function
If remote and the center of the upper key cannot operate after miss set special function by the center of the
upper keys, these functions can recover by below method.
Press the SUB-POWER( ) button, INPUT SELECT(
more than 5 seconds.
The set turns on the service menu mode.
Select No.535 and data set from [0] to [1].
Or
Press the SUB-POWER( ) button and VOLUME UP (
onds
How to check method of the use accumulation time for panel.
Select No.518 of Service Adjustment Menu.
32LD7200 (PW2L)
) button and VOLUME DOWN(
) button and
) button at the same time, and hold for more than 5 sec-
33
) button at the same
) button and
button at the same time, and hold for
button at the