LG 50PW450 Service Manual - Page 68
Power board Checking Method
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Repair Process-Reference data PDP TV P811 Symptom B. Power Problem Power board Checking Method Making Revision 2010. 11. 16 전자 - 6-2 A23 Power B/D↔ Y-Sus B/D(P811) ◆ Check 5V,Va,Vs voltage Vs adjust Va adjust PIN NAME 1 VS 2 VS 3 NC 4 GND 5 GND 6 VA 7 M5V : For Voltage specification, refer to the PDP Module Label. SC101 P813 ▣ Checking Method ① Check soldering status on each major component. ② Check there is problem on major component or not by eye. (CONDENSER, FET, IC, Resistor) ③ Check FUSE. ④ Check 5V,Va,Vs voltage ※ PSU Maker: 1) LGIT 2) LITEON 3) YUYANG ※ If happen Power board Protection, check whether there is Short or Open on Y-SUS, Z-SUS B/D or not. A23 Va Voltage ADJ ◆ Adjust Va,Vs voltage. - value + value Vs Voltage ADJ Adjust way ⓒ LG Electronics. Inc.2010
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