Adjustment Notice - LG 42PQ30 Training 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
4) As a general rule of thumb when ever the back is removed
ADJUSTMENT ORDER "IMPORTANT"
DC VOLTAGE ADJUSTMENTS
1) SMPS Board: Va Vs (Always do SMPS first)
2) Y-SUS Board: Adjust –Vy, Vscan,
3) Z-SUS Board: Adjust ZBias
WAVEFORM ADJUSTMENTS
1) Y-SUS Board: 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".
Remember, the Voltage Label MUST be followed,
Set- -VY
Up
30
it is specific to the panel's needs.
Vscan
Ve Z_BIAS
All label references are from a specific panel.
They are not the same for every panel encountered.
Preliminary Information 42PQ30
Manufacturer
Bar Code
Panel
"Rear View"