Read Panasonic TU-PTA100E Service Manual online
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Sub Contrast and White Balance Adjustment
Preparation
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•Sub Contrast Adjustment
•CUT OFF Adjustment
Adjustment Procedure
Waveform
1. Connect Oscilloscope: TPWG
2. Into Service 2 Sub Contrast
3. Recieve Crosshatch Pattern
4. Adjust Sub Contrast : A=0.7V ± 0.02V
2. Into Service 2 Sub Contrast
3. Recieve Crosshatch Pattern
4. Adjust Sub Contrast : A=0.7V ± 0.02V
Preparation
& ADJ
& ADJ
Adjustment Procedure
Waveform
SUB-
BRIGHTNESS
BRIGHTNESS
WB-R-CUT OFF
WB-B-CUT OFF
Oscilloscope
TPWG (CH1)
TPWR (CH2)
TPWG (CH1)
TPWG (CH1)
TPWB (CH2)
TPWG (CH1)
TPWG (CH1)
Setting Projector
Into Service
mode 1
mode 1
Into Service
mode 2
mode 2
Into Service
mode 2
mode 2
Signal generator
PAL Cross Dot
PAL Cross Dot
PAL Cross Dot
Adjustment
Black Level =
Blanking
Blanking
Red Blanking =
Green Blanking
Green Blanking
Blue Blanking =
Green Blanking
Green Blanking
GND
: Black Level
A
Blanking
Minimum
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