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1. Power Supply Voltage Check (PD-53 Board)
LCD 5V check
Measurement Point
DAC SV check
Measurement Point
Specified Value
4.85 + 0.05 Vdc
2. PNL -8V Adjustment (PD-53 board)
Mode
Record
Color bar signal whose chroma signal
Signal
and burst signal are turned off
Measurement Point
Adjustment Element
RVO02
Specified Value
-8.0 + 0.05 Vdc
Adjusting method:
1) Adjust the voltage to specified value with RVO02.
3. EVR Initial Data Input
Mode
STOP
Signal
Arbitaty
Ad.iustment Page
D
Adjusting method:
1)
Release the protect.
Page: 1, address: 00, data: 01
2)
Select page D, and input the data in the following table.
Note: To write in the nonvolatile memory (EEPROM),
press the PAUSE button of the adjusting remote
commander each time the data is set.
I
Address
B2
B3 (SUB BRI. R)
B4 (SUB BRI. B)
B6 (VCO)
B7 (v COM)
B8
B9
BA (H. POSITION)
4. Bright Adjustment (PD-53 board)
Adjust to the proper LCD panel driving video signal level.
If it is not correct, the image will be saturated (whitish) or
I
blackish.
I
Signal
Measurement Point
Measuring Instrument
Specified Value
Adjusting method:
1) Release the protect.
I
2) Change the data of page: D, address: BO, and adjust the
3) Press the PAUSE button of the adjusting remote
I
I
Data
55
I
I
90
95
A2
70
I
I
99
CD
7B
6B
78
B7
I
I
92
7-10
Color bar signal whose chroma and
burst signals are turned off
Pin @ of CNO02 (VG)
Oscilloscope
External trigger:
Pin @ of ICOOS
s
Page: 1, address: 00, data: 01
amplitude level (A) of the VG signal to the specified value.
Amplitude: Level difference between the reverse waveform
pedestal and non-reversed waveform pedestal.
commander.
Fig. 7-3-33.
Reverse waveform
pedestal
Non-reverse
waveform pedestal
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