No. 51957
GM-P421U
GM-P420UG
35
SERVICE ADJUSTMENTS
BEFORE ADJUSTMENT
1.
There are 2 ways of adjusting th is monitor : On e is with the
REMOTE CONTROL UNIT and the other is the conventional
method using adjustment parts and components.
2.
The setting
(adjustment) using the REMOTE CONTROL
UNIT is made on the basis of th e initial setting values. The
setting values which adjust the screen to the optimum
condition can be different from the initial setting values.
3. Make s ure that connection is c orrectly made to AC power
sourc e.
4. Turn on the power of the PDP monitor and measuring instrument
for warming up for at least 30 minutes before starting
adjustment.
5. If the input signal is not specified, use the most appropriate
signal for adjustment.
6. Never touch parts (such as variable resistors, transformers and
condensers) not shown in the adjustment items of this servic e
adjustment.
MEASURING INSTRUMENT
AND TOOLS
1. DC voltmeter (or digital voltmeter)
2. Oscilloscope
3. Signal
generator
4. Remote control unit
5. Color analyzer (color temperature meter)
ADJUSTMENT ITEMS
•
Power voltage (Vd / Vs)
•
VCO
•
AD INPUT offset (1080i)
•
RGB offset (NTSC)
•
RGB offset (480i)
•
RGB offset (1080i)
•
RGB offset (VGA)
•
RGB offset (RGB 15k)
•
WHITE BALANCE (NTSC)
•
WHITE BALANCE (480i)
•
WHITE BALANCE (1080i)
•
WHITE BALANCE(VGA)
•
WHITE BALANCE(RGB 15k)
•
BRIGHT (NTSC)
•
BRIGHT (480i)
•
BRIGHT (1080i)
•
BRIGHT (VGA)
•
BRIGHT (RGB 15k)
