PDP display TH - 42 pw5ch and set-top box TU - PT600C connection is good, then the electricity, boot after the green light to normal on the display panel flashes, after a few seconds automatically into standby mode, green light, red light (not flashing). 8qNservice manual download site
 8qNservice manual download site
Dropped the display cable between the set-top box and dial, then open the display power supply, can display the normal boot, press the button on the panel, character display is normal. This shows no display ontology failure, failure in set-top boxes. That is to say, display boot automatically after shutdown into standby mode, is caused by the set-top box is not normal. He shall make maintenance for the set-top box. 8qNservice manual download site
 8qNservice manual download site
 8qNservice manual download site
Open the set-top box, measure the P2 socket, 13, 14 feet have normal standby power supply voltage of 7.5 V. Measurement on the power switch, press the panel P1: socket pin 13 no 8 v output power, 14, 15 no 9 v power supply output, 16 feet no 12 v power supply output. Result: is the main switch power within the set-top box without work caused by the fault phenomenon. 8qNservice manual download site
 8qNservice manual download site
Measuring 220 v rectifier filter capacitance C812 no 300 v voltage, the bridge ahead is found R804:1.8 euro / 5 w. Replace the resistance after boot, OK.8qNservice manual download site