Sony KE-42XBR900 - 42" Xbr Plasma Wega™ Integrated Television, Service Manual

Page: 30 / 203

KE-42XBR900(UC) 2-1
SECTION 2
ADJUSTMENTS
1
2-1. VS, VD Voltage Adjustment (PDM-4200)
• Preparation for adjustment
1.Slide the DIP switch (S3201) No. 8 of P board to on position with no silkscreen mark
r
.
2.Connect a digital voltmeter to the following terminals of G board.
VS voltage=G board TP1701 (VS)-TP1502 (GND)
VD voltage=G board TP1501 (VD)-TP1502 (GND)
3.Connect a AC cord in DISPLAY UNIT.
4.Perform the adjustment in 10 seconds after connecting the cord.
• Procedure for adjustment
1. Slide the DIP switch (S3201) No. 7 of P board to on position with no silkscreen mark r .
2. Confirm the lighting of SONY LOGO LED.
3. Adjust the VS voltage to the following voltage value.
VS voltage of proper value for each model.
Ex.) VS proper value=185V thru 185.6V at 185V.
(Check the proper value with a seal on upper left of panel unit. Refer to right Fig.)
4. Adjust the VD voltage to the following voltage value.
VD voltage ±0.3V of proper value for each model.
Ex.) VD proper value=64.7V thru 65.3V at 65.0V.
(Check the proper value with a seal on upper left of panel unit. Refer to right Fig.)
5. Check a Fan rotation.
6. Slide the DIP Switch (S3201) No. 7 of P board to the off position with the silkscreen mark
r .
7. Slide the DIP Switch (S3201) No. 8 of P board to the off position with the silkscreen mark
r .
8. Disconnect an AC cord of DISPLAY UNIT.
9. Reconnect the AC cord in one second.
10. Assure that “POWER ON/STANDBY” LEDs is flashing amber.
+6V
–0V
<SEAL POSITION>
Rear cover assy
SERIAL No.
301201440
Vd=65V
Vs=193.4V
CODE AA-01
BAR CODE SEAL
Panel unit