CCD-TRV107/TRV108/TRV308/TRV408/TRV608
6. V-COM Adjustment (PD-156 board)7. White Balance Adjustment (PD-156 board)
Set the DC bias of the common electrode drive signal of LCD to theCorrect the white balance.
specified value.If deviated, the reproduction of the LCD screen may degenerate.
If deviated, the LCD display will move, producing fMode licker andVTR stop
conspicuous vertical lines.
SignalNo signal
ModeVTR stop
Measurement PointCheck on LCD screen
SignalNo signal
Measuring Instrument
Measurement PointCheck on LCD display
Adjustment Page7
Measuring Instrument
Adjustment Address49, 4A
Adjustment Page7
Specified ValueThe LCD screen should not be colored.
Adjustment Address45
Specified ValueThe brightness difference between theNote: Check the white balance only when replacing the following parts. If
section A and section B is minimum.necessary, adjust them.
1. LCD panel
2. Light induction plate
Note: This adjustment should be carried out upon completion of the
3. IC5501
following adjustments.
RGB AMP Adjustment
Contrast AdjustmentAdjusting method:
COM AMP AdjustmentOrder Page Address DataProcedure
100101Set the data.
Adjusting method:
274960Set the data, and press PAUSE
Order Page Address DataProcedure
button.
100101Set the data.
374A65Set the data, and press PAUSE
2745Change the data so that thebutton.
brightness of the section A and
4749Check that the LCD screen is not
that of the section B is equal.
colored. If not colored, proceed to
3745Subtract 8 from the data.
step 10.
4745Press PAUSE button.5749Change the data so that the LCD
500100Set the data.screen is not colored.
6749Press PAUSE button.
774AChange the data so that the LCD
screen is not colored.
BA
874APress PAUSE button.
974AIf the LCD screen is colored,
ABrepeat steps 5 to 9.
1000100Set the data.
BA
AB
Fig. 5-1-19.
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