White Balance; Focus; Geomagnetic; Sub Bright - Panasonic TX-34P180R Service Manual

TX-34P180R

5.10. WHITE BALANCE

1. Select Service Mode 1.
2. Aging should have been performed over 30 minutes
3. Receive the white balance pattern.
4. Picture menu: DYNAMIC NORMAL
AI: OFF
5. Degauss the CRT face.
6. Connect the photo sensors of the Colour Analyser to the
CRT.
Note:
CRT cut off adjustment is completed.

5.11. FOCUS

1. Receive a cross-hatch pattern signal.

5.12. GEOMAGNETIC

1. Demagnetize the GM-Board around its perimeter with the
Demagnetizer.
2. Set to control:
Geomagnetic.....Auto

5.13. SUB BRIGHT

1. Receive the sub bright pattern.
2. Picture Menu:
BRT..................CENTER
COLOUR..........CENTER
CONT...............MAX
3. Connect the photo sensor of the Colour Analyser to the
center of the CRT.
Item/Preparation
Item/Preparation
Item/Preparation
Item/Preparation
Adjustment Procedure
1. Adjustment of Low Light
a. Adjustment SUB BRIGHT, so that "Y" axis indicates 6.5
b. Adjustment R-CUT OFF, so that y axis indicates
0.241 ± 0.005.
c. Adjustment B-CUT OFF, so that x axis indicates
0.241 ± 0.005.
2. Adjustment of High Light
a. Adjust SUB BRIGHT, so that "Y" axis indicates 90.
b. Adjust R-DRIVE, so that y axis indicates 0.258 ± 0.003.
c. Adjust B-DRIVE, so that x axis indicates 0.258.
Adjustment Procedure
1. Adjust the Focus to thin all the Lines by Focus 1 Control.
(Prefer to thin the Vertical Lines than Horizontal Line.)
2. Adjust the Focus to thin the Horizontal Lines by Focus 2
Control.
Adjustment Procedure
1. Connect a DC voltage meter to TPGM1-2pin (GM-Board)
2. Adjust the R4863 (GM-Board) so that the Vx Out at TPGM2-
4pin becomes 3.9 ± 0.1 V
3. Connect a DC voltage meter to TPGM1-1pin (GM Board).
4. Adjust the R4861 (GM-Board) so that the Vy Out at TPGM1-
4pin becomes 3.8 ± 0.1 V
Adjustment Procedure
1. Adjust Sub Bright so that brightness level becomes 1 ± 0.2
2
cd/m .
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