Pioneer PDP-424MV Service Manual page 32

4. Adjustments after replacement of parts in the module
After the module has been reassembled, adjust the panel-drive voltages as indicated below:
Check Vbw, Vsw, and Vp voltages (values specific for each panel) indicated on the drive-
voltage label.
Vsw adjustment inside the Common PKG
Points to measure: Voltage between TP10 and GND (chassis GND) on the Common PKG
Adjustment method: Adjust VR101 so that the Vsw value of TP10 becomes in the range of
±0.5 V of the Vsw value indicated on the drive-voltage label.
TP10
32
Common PKG
Drive-voltage label
(s185.0 / d65.0)115.2/209.9/199.8 (s185.0 / d65.0)115.2/209.9/199.8
************************************* *************************************
311200062 311200062
VR101
Scanning PKG
Vbw Vsw Vp Vbw Vsw Vp
Common PKG
7-10
Example
V bw : 115.2V
Vsw : 209.9V
Vp : 199.8V