Vs, Va VOLTAGE ADJUSTMENT
- Turn ON the set and perform pre-heat run for more than 5 minutes with a snow noise on the screen.
- Receive a full black pattern [blanking level] signal or (Video No signal; in case, it will automatically turned Off after a few seconds because of power-save function).
- Connect the Volt Meter leads to the Vs or Va & GND test points on the power unit.
- Turn Vs Adj to adjust Vs voltage to be within 0.1V of the value specified on panel label.
- Turn Va adj to adjust Vs voltage to be within 0.2V of the value specified on the panel label.
- Reconfirm that Vs voltage remains within 0.1 of the value. Readjust if necessary. This is a crucial adjustment.
Look for exact voltage at the panel label. See it below.
55HDT51 PLASMA PWB LAYOUT
