LG 50PQ30 Training Manual page 31

Adjustment Notice
Adjustment Notice
It is critical that the DC Voltage adjustments be checked when;
1) SMPS, Y-SUS or Z-SUS board 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) POWER SUPPLY: Va Vs (Always do first)
2) Y-SUS: Adjust –Vy, Vscan,
3) Z-SUS: Adjust Z-Bias (VZB)
WAVEFORM ADJUSTMENTS
1) Y-SUS: Set-Up, Set-Down
The Waveform adjustment is only necessary
1) When the Y-SUS board is replaced
2) When a "Mal-Discharge" problem is encountered
3) When an abnormal picture issues is encountered
All adjustments (DC or Waveform) are adjusted in WHITE WASH.
Customer's Menu, Select "Options", select "ISM" select "WHITE WASH".
Set-
Up
31
Remember, the Voltage Label MUST be followed,
it is specific to the panel's needs.
-VY Vscan
Ve Z_BIAS
All label references are from a specific panel.
They are not the same for every panel encountered.
November 2009 50PQ30 Plasma
Manufacturer
Bar Code
Panel
"Rear View"