Panasonic TX-15PM30T Service Manual

Also see for TC-21PM10R: Service manual Service manual

Contents

Panasonic TX-15PM30T Service Manual Manual pdf 8 page image

Adjustment ProcedureItem / Preparation Adjustment Procedure+B Voltage1. Operate the TV set. Confirm the DC voltage at the indicated test points,as follow :2. Set control as follow : TPA 12 : 141.2 +- 0.8V TPA 21 : 215 +- 15VBrightness ..... minimum TPA 11 : 8 +- 1VContrast ........ minimum TPA 10 : 5 +- 1VRF AGC1. Receive a colour bar signal at an 1. Select “RF AGC” indication in CHK 2, on ScreenRF level of 75dBU with 75 by remote control at factory mode.loaded.2. Connect digital multimeter to RF AGC 2. Set RF AGC by using remote control volume (+)at Tuner. or volume (-) button until voltage AGC at Tunerreach 2.7 +- 0.1V.3. Increase RF signal strenght by 2dB, confirmAGC at Tuner voltage drop.High Voltage1. Receive the crosshatch pattern. 1. Connect a DC voltage meter to TPA 12and confirm the +B voltage is 141.2 +- 0.8V.2. Set to 0 Beam . 2. Connect a high frequency voltmeter to heater andScreen VR ..... minimum confirm that voltage reads 6.0+- 0.24 (VRMS).Contrast ....... minimum 3. Normalize the brightness and contrast.Item / Preparation Adjustment ProdureConnect a short jumper between TPA 10 1. Adjust Sub-Tint so that No.2,3 and 4 becomesand TPA 20. level waveform is similiar to Fig. 10.Press Main Menu and Set system to 2. Confirm phase at Tint is changes more thanUse AV-NTSC (3.58MHz). +/- 30 by Tint control.DYNAMIC ....... Normal 3. Confirm that colour level is maximum whencolour DAC is adjusted to maximum position.Note:Use Remote control only when adjusting user modeto Sub-Tint.0.5aa7 8 9 101 2 3 4 5 6Fig. 10Ω