Friday, September 13, 2013

HOW TO ADJUST POWER PCB ASS'Y VOLTAGES - LG 42PT250B - PASMA TV


POWER SUPPLY VOLTAGES ADJUSTMENT
Vs adjustment.
  • Connect + terminal of D.M.M. to Vs pin of P811, connect -terminal to GND pin of P811
  • After turning VR901, voltage of D.M.M adjustment as same as Vs voltage which on label of panel left/top (deviation; ±0.5V)

Va adjustment 
  • After receiving 100% Full White Pattern, HEAT RUN.
  • Connect + terminal of D.M.M. to Va pin of P811, connect -terminal to GND pin of P811.
  • After turning VR502,voltage of D.M.M adjustment as same as Va voltage which on label of panel left/top (deviation; ±0.5V)