LG 42PJ350 Training Manual page 51

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 2ms per/div.
Note the 2 blanking sections.
The area for adjustment is pointed out within the Waveform
Fig 2:
At 200uSec per/division, the area of the waveform to
use for SET-UP or SET-DN is now becoming clear.
Now the only two blanking signals are present.
Fig 3:
At 100us per/div the area for adjustment of SET-UP or SET-DN
is now easier to recognize. It is outlined within the Waveform.
Remember, this is the 1
TIP: If you expand to 40uSec per/division, the
adjustment for:
SET-UP can be made using VR601 and the
SET-DN can be made using VR401.
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"
large signal to the right of blanking.
st
Area to
expand
Adjustment
Area
Area to
expand
Blanking
Area for Set-Up
adjustment
Area for Set-Dn
adjustment
51 August 2010
Adjustment
Area
Blanking
Expanded from above
Expanded from above
155V
p/p
170 uSec
42PJ350
FIG1
2mS
Blanking
FIG2
200uS
FIG3
100uS
Plasma