Panasonic tx-34p180b Service Manual

Panasonic tx-34p180b Service Manual Manual pdf 16 page image

5.10. WHITE BALANCEItem/Preparation Adjustment Procedure1. Select Service Mode 1.2. Aging should have been performed over 30 minutes3. Receive the white balance pattern.4. Picture menu: DYNAMIC NORMALAI: OFF5. Degauss the CRT face.6. Connect the photo sensors of the Colour Analyser to theCRT.Note:CRT cut off adjustment is completed.1. Adjustment of Low Lighta. Adjustment SUB BRIGHT, so that “Y” axis indicates 6.5b. Adjustment R-CUT OFF, so that y axis indicates0.241 ± 0.005.c. Adjustment B-CUT OFF, so that x axis indicates0.241 ± 0.005.2. Adjustment of High Lighta. 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 0.258.5.11. FOCUSItem/Preparation Adjustment Procedure1. Receive a cross-hatch pattern signal. 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 2Control.5.12. GEOMAGNETICItem/Preparation Adjustment Procedure1. Demagnetize the GM-Board around its perimeter with theDemagnetizer.2. Set to control:Geomagnetic.....Auto1. 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 V3. 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 V5.13. SUB BRIGHTItem/Preparation Adjustment Procedure1. Receive the sub bright pattern.2. Picture Menu:BRT..................CENTERCOLOUR..........CENTERCONT...............MAX3. Connect the photo sensor of the Colour Analyser to thecenter of the CRT.1. Adjust Sub Bright so that brightness level becomes 1 ± 0.2cd/m 2 .16TX-34P180B