Panasonic TX-L42G20E Service Manual

Also see for TXL42G20E: Operating instructions

Panasonic TX-L42G20E Service Manual Manual pdf 22 page image

Adjustment MethodSub-Contrast/White Balance AdjustmentInstrument Name Connect to Remarks1. Remote controller2. LCD WB meter (Minolta CS-1000A equivalent)3. Comunication jig4. Computer for external controlCorrelation can be also taken byCA-210 or equivalentProcedure RemarksSubcontrast adjustment1. Receive PAL colour bar (100% white) RF signal.2. Enter “Contrast” adj. In SERVICE mode.3. Start adjusting by using Yellow Key.4. If the adjustment finished normally, the letter of Contrast will change from redto blackWhite Balance adjustment1. Procedure basically performs checking using the production software andmake automatic adjustment using external computer.2. It adjusts in the mode of : Colour balance Normal as follows.Viewing Mode DynamicWHITE Normalx: 0.2940 ± 0,010y: 0.3140 ± 0,010GRAY Normalx: 0.2940 ± 0,010y: 0.3140 ± 0,010Let the panel standfor more than 3hours at more than 20 °C.Basically perform adjustment in theambient environment of roomtemperature more than 20 °C.The aging time is more than20 minat above room temperature.Applied signal100% full colour bar0.7V p-p white peak87.5% modulation100% WHITE50% GRAY22