Pioneer PDP-424MV Service Manual page 33

Vp adjustment inside the Scanning PKG
Points to measure: Voltage between TP32 and GND (chassis GND) on the Scanning PKG
Adjustment method: Adjust VR1 so that the Vp value of TP32 becomes in the range of ±1.5 V
of the Vp value indicated on the drive-voltage label.
VR1
Vbw adjustment inside the Scanning PKG
Points to measure: Voltage between TP34 and GND (chassis GND) on the Scanning PKG
Adjustment method: Adjust VR2 so that the Vbw value of TP34 becomes in the range of ±0.5
V of the Vbw value indicated on the drive-voltage label.
TP32
TP34
VR2
7-11
Scanning PKG
Scanning PKG
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