Hitachi 42PMA400E, Service Manual

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8.2 Personal Computer (PC) input and Video input Automatic amplitude adjustment
How to set to service adjustment mode
Turn off the sub power button (or power button on the
Remote Controller
),
Then turn on the SUB POWER button for more than 5 seconds while you keep pushing
INPUT SELECT and RECALL buttons located on the bottom of the set.
Preparation
1. Indicate service adjustment mode.
2. Select SHIP.2, then press [RECALL] button more than 3 seconds by
Remote Controller.
(The screen disappears, and EEPROM is initialized.)
A service adjustment mode screen appears after initialization end again.
* : Select items : Press [
▲ ▲ ▲ ▲
,
▼ ▼ ▼ ▼
] botton of Remote Controller.
Adjust Data : Press [ , ] botton of Remote controller.
Memorize the data : Press [ ENTER] botton of Remote controller.
Adjustment Signal
How to adjust (VIDEO input)
1.Input 525p(480p) adjustment signal into VIDEO2 input terminal.
2.Change CONTRAST of the MENU screen from DYNAMIC to LINEAR.
3.Service adjustment mode screen again
4.Select No.259. (RGB ADJ.)
5.Press [ENTER] button more than 2 seconds. * Start the automatic adjustment.
6.Complete the adjustment after disappear ADJUSTMENT indication.
7.Change CONTRAST of the MENU screen from LINER to DYNAMIC again.
How to adjust (PC input)
1.Input VGA (60Hz) adjustment signal into RGB input terminal.
2.Indicate service adjustment mode.
3.Select No.259. (RGB ADJ.)
4.Press [ENTER] button more than 2 seconds. * Start the automatic adjustment.
5.Complete the adjustment after disappear ADJUSTMENT indication.
*Never adjust without use our specify signal.
If press [ENTER]button at No.259 by mistake, the picture becomes abnormal (Black level,
Contrast and Color.)
Black White
0.7V
*Fig.1 Adjustment Signal
Black pattern : Set pedestal level.
This signal must not insert character.
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