Adjustment Notice - LG 50PV450 Manual

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 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 C O G
1) POWER SUPPLY: VS, VA (Always do first)
2) Y-SUS: Adjust –Vy, VSC
3) Z-SUS: Adjust Z-Bias (VZB) 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 any abnormal picture issue is
encountered
All adjustments (DC or Waveform) are adjusted in WHITE WASH.
Customer's Menu, Select "Options", select "ISM" select "WHITE WASH".
C
S S
Remember, the Voltage Label MUST be followed,
it is specific to the panel's needs.
Ve ZBias
Set-Up -Vy Vsc
All label references are from a specific panel. All label references are from a specific panel
They are not the same for every panel encountered.
42 May 201 1 50PV450
Power Supply
Panel
"Rear View"
Plasma