Panasonic TC-21P50R Service Manual

Also see for TC-21P50R: Operating instructions

Contents

Panasonic TC-21P50R Service Manual Manual pdf 12 page image

- 12 -Item / Preparation Adjustment ProcedureNTSC SUB-TINT1. Connect oscilloscope probe to TPA40 (R OUT).2. Input Rainbow-Pattern (3.58MHz NTSC)to VIDEO-IN terminal, and set AV mode byTV/AV select button.3. Connect short-jumper to TPA57 andTPA50.4. Connect short-jumper to FBT pin3 andTPA32.5. Picture menu : DYNAMIC NORMAL.AI : OFFChannel colour SET....STD.1. Adjust Sub-NTSC-TINT, so that levels of NO.2, NO.3, NO4 (Fig.1)become Fig,2.2. Confirm the waveform is 1.3Vp-p.SECAM BLACK LEVEL1. Receive the SECAM colour bar pattern.Input RF signal level : 75dB(75 W opened).2. Picture menu : DYNAMIC NORMAL.AI : OFF3. Channel colour SET....STD.4. Enter factory mode, then go to CHK2.5. Connect short jumper from FBT pin 3 toTPA32.1. Press digit '4' until R-Y appears.2. Connect oscilloscope prebe to TPA52 (R-Y out).3. Connect oscilloscope prebe ground to TPA54 (IC601 pin 32. gnd).4. Adjust R-Y so that point A and point B center line are flat. See Fig.1.5. Connect oscilloscope prebe to TPA53 (B-Y out). Press digit '4' until B-Yappears.6. Adjust B-Y so that point C and D center line are flat. See Fig.2.1 2 3 4 5 6Fig.1Fig.27 8 9 10AB2 3 4A : B = 2 : 3ABCFig.2Fig.1D