Panasonic TH-P50X20K Service Manual

Also see for Viera TH-P50X20K: User guide

299.1.2. Sub-Contrast adjustmentName of measuring instrument Connection RemarksRF generatorBase Band signal generatorHD signal generatorSteps RemarksAdjustment of TV (RF system)1. Receive a RF PAL 100% Full White or Split Colour bar shown as below.2. Goes into service mode.3. Push a [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ CONTRAST ].Adjustment1. The colour key yellow button of remote control is pushed.2. The OSD character of sub-contrast becomes red.(Inside under automatic adjustment)3. The OSD character of sub-contrast returns to black.4. End.Note:Sub-contrast adjustment is unadjustedfor AV/ HD input.But, when needing the adjustment cho-sen manually, please refer to [ alterna-tive method ].