LG 50PQ30 Training Manual page 48

Observing (Capturing) the Y
Observing (Capturing) the Y
All other DC Voltage adjustments should have already been made.
Fig 1:
As an example of how to lock in to the Y-Drive Waveform.
Fig 1 shows the signal locked in at 4ms per/div.
Note the 2 blanking sections.
The signal for SET-UP is outlined within the Waveform
Fig 2:
At 2mSec per/division, the waveform to use for
SET-UP Is now becoming clear.
Now, the two blanking signal are still present.
Fig 3:
At 400us per/div. the signal for SET-UP is now easier to
recognize. It is outlined within the Waveform.
Remember, this is the first large signal to the right of blanking.
Fig 4:
At 40uSec per/division, the adjustment for SET-UP
can be made.
It will make this adjustment easier if you use
the "Expanded" mode of your scope.
- Drive Signal for Set Up Adjustment
- Drive Signal for Set Up Adjustment
Set must be in "WHITE WASH"
48
Outlined
Area
Area to
be adjusted
Blanking
Area to
be adjusted
Blanking
Area to
be adjusted
November 2009 50PQ30 Plasma
Blanking
Blanking
FIG1
4mS
FIG2
2mS
FIG3
400uS
FIG4
40uS