Adjustment Order - LG 50PS80 Training Manual

Adjustment Order

Adjustment Order
It is critical that the DC Voltage adjustments be checked when;
1) SMPS, Y-SUS or Z-SUS PWB is replaced.
2) Panel is replaced, Check Va/Vs since the SMPS does not come with new panel
3) A Picture issue is encountered
4) As a general rule of thumb when ever the back is removed
ADJUSTMENT ORDER "IMPORTANT"
DC VOLTAGE ADJUSTMENTS
1) SMPS PWB: Va Vs (Always do SMPS first)
2) Y-SUS PWB: Adjust –Vy, Vscan,
3) Z-SUS PWB: Adjust ZBias
WAVEFORM ADJUSTMENTS
1) Y-SUS PWB: Set-Up, Set-Down
The Waveform adjustment is only necessary
1) When the Y-SUS PWB is replaced
2) When a "Mal-Discharge" problem is encountered
3) When an abnormal picture issues is encountered
All Adjustments MUST be done in White Wash
Remember, the Voltage Label MUST
be followed, it is specific to the
All label references are from a specific panel.
They are not the same for every panel
39 August 2009 Plasma 50PS80
panel's needs.
encountered.