panas TX-51P100H, Service Manual

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Sub Contrast, Sub Bright, Cut off, and White Balance Adjustment
Sub Contrast and Sub Bright Adjustment (MARKET MODE CHK2,CHK3)
CUT OFF Adjustment (MARKET MODE CHK6)
Adjustment Procedure Waveform
1. Connect Oscilloscope : TPLG5 on LG-board.
2. Into Market mode CHK3.
3. Receive Black Pattern.
4. Adjust Sub Bright : A=180 ± 2V
5. Receive Crosshatch Pattern.
6. Into Market mode CHK2.
7. Adjust Sub Contrast : B=110 ± 2V
Preparation &
ADJ
Adjustment Procedure
Waveform
G-CUT OFF B-CUT OFF R-CUT OFF
Oscilloscope TPLG5
(on LG-board) TPLB4
(on LB-board) TPLR5
(on LR-board)
Setting
Projector Into Market mode
CHK6 Into Market mode
CHK6 Into Market mode
CHK6
Signal generator Black Pattern Black Pattern Black Pattern
Adjustment EX DAC G-CUT
OFF
A=180 ± 2V EX DAC B-CUT
OFF
A=180 ± 2V EX DAC R-CUT
OFF
A=180 ± 2V
TPLG5
TPLG5
Black Level
A=180±2V
B=110±2V
GND
GND
A
GND
Black Pattern
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