Sand -V - Fujitsu Plasmavision PDS4229W-B Service Manual

V AND -V
S Y
When the Main Power Supply PCB and PDP panel are replaced, Vs and –Vy must be
adjusted.
Preparation : Heat-run for 5 minutes with a white pattern in the wide mode.
Adjustment : Adjust the Vs and –Vy in the no-signal state.
Check points : Refer to the drawing shown below.
Adjustment points : Refer to the drawing shown below.
Adjustment value : Within +/- 0.1V of voltage indicated on the label of the PDP panel.
T2
C N 3 5 1
C N 3 5 2
C N 4
Vs check point
CN41
9 pin +
5 pin GND
NOTE : After the power cord plug was pulled out, do not pull out the connector on the Main Power
PCB until the Green LED (D531: Discharge check LED) turns off.
ADJUSTMENT
– MAIN POWER SUPPLY PCB
T3
VR633
-Vy ADJ.
D531
DISCHARGE
CHECK LED
C N 4 2
6
1
C N 4 1
1 10
-Vy check point
CN42
3 pin +
5 pin GND
(M00BV-PCB)
C N 5 0
C N 1 0
C N 4 9
– 20 –
–
T4 T5
VR582
Vs ADJ.
L583