Panasonic TH-42PX6U Service Manual

Also see for TH-42PX6U: Technical guide Service manual Operating instructions Operating instructions Operating instructions

Contents

Panasonic TH-42PX6U Service Manual Manual pdf 154 page image

12 Adjustment12.1. White balance adjustmentInstrument Name Connection Remarks · W/B pattern · Color analyzer(Minolta CA-100 or equivalent)Component inputPanel surfaceUser setting: NormalProcedure Remarks · Ensure aging is adequate. · Make sure the front panel to be used on the final set is fitted. · Make sure a color signal is not being shown before adjustment. · Put the color analyzer where there is little color variation.1. Output a white balance pattern.2. Check that the color temperature is “cool”.3. Set to factory mode, WB-ADJ.4. Set “R-CUT” “G-CUT” “B-CUT” 80h.5. Attach the sensor of color analyzer to the center of highlight window.6. Fix G drive at C0h and adjust “B-DRV” and “R-DRV” so x, y value of color analyzerbecome the “Color temperature High” in table 1.7. Increase RGB together so the maximum drive value in RGB becomes FCh. That is, set“ALL DRIVE” to FCh.8. Set color temperature to “Normal”.9. Set “R-CUT” “G-CUT” “B-CUT” 80h.10. Attach the sensor of color analyzer to the center of highlight window.11. Fix G drive at C0h and adjust “B-DRV” and “R-DRV” so x, y value of color analyzerbecome the “Color temperature Mid” in table 1.12. Increase RGB together so the maximum drive value in RGB becomes FCh. That is, set“ALL DRIVE” to FCh.* When WB-ADJ(mid) is adjusted by data-offset, set values as follows.R-DRV : the same as R-DRV_coolG-DRV : “G-DRV_cool” -2hDACB-DRV : “B-DRV_cool” -22hDAC13. Set color temperature to “Warm”.14. Set “R-CUT” “G-CUT” “B-CUT” 80h.15. Attach the sensor of color analyzer to the center of highlight window.16. Fix G drive at C0h and adjust “B-DRV” and “R-DRV so x, y value of color analyzerbecome the “Color temperature Low” in table 1.17. Increase RGB together so the maximum drive value in RGB becomes FCh. That is, set“ALL DRIVE” to FCh.* When WB-ADJ(warm) is adjusted by data-offset, set values as follows.R-DRV : the same as R-DRV_coolG-DRV : “G-DRV_cool” -AhDACB-DRV : “B-DRV_cool” -62hDAC18. Set color temperature to “Cool”.19. Copy values adjusted by HD pattern to the NTSC data area of EEPROM.Pic Menu: VividPicture: +30ASPECT: FULL · Highlight sectionSignal amplitude 75%40TH-42PX600U