Sanyo PLV-Z4 Service Manual

Also see for PLV-Z4: Owner's manual Specifications

-56-Electrical AdjustmentsEquipment OscilloscopeInput signal 16-step gray scale signal5-a Input mode Computer [RGB(Analog)]Image mode PowerfulInput format 720p computer signal5-b Input mode VideoImage mode PowerfulInput format NTSC composite video signal5-c Input mode Component_1Image mode PowerfulInput format 480i component signal5-d Input mode Component_1Image mode PowerfulInput format 480p component signal5-e Input mode Component_1Image mode PowerfulInput format 720p component signal5-f Input mode Component_1Image mode PowerfulInput format 1080i component signal1. Enter the service mode.2. Change data values for each test points to adjust thewaveform “a” to be minimum amplitude in eachmode.Item no. Test Point106 - 0 TP35G106 - 1 TP35B106 - 2 TP35R(a)White Levelb Sub gain adjustmentEquipment Digital voltmeterInput mode Computer [RGB(Analog)]Image mode PowerfulInput signal 16-step gray scale computer signal(720p format)1. Enter the service mode.2. Change data values for each test points to adjust thevideo signal center voltage (VMID).Item no. Test Point Adjustment value2 - 0 TPVG 7.0 ±0.05Vdc2 - 1 TPVB 7.0 ±0.05Vdc2 - 2 TPVR 7.0 ±0.05Vdcc Video signal center adjustmentEquipment Digital voltmeterInput mode Computer [RGB(Analog)]Image mode PowerfulInput signal 16-step gray scale computer signal(720p format)1. Enter the service mode.2. Change data value for each test points to adjust thevideo signal reference voltage (VREF).Item no. Test Point Adjustment value2 - 3 TPREFG 9.5 ±0.05Vdc2 - 4 TPREFB 9.5 ±0.05Vdc2 - 5 TPREFR 9.5 ±0.05Vdcv Reference adjustment