Samsung VPL500 Service Manual page 53

Alignment and Adjustment
4-2-4 (b) ADJUSTMENT
1. PLL
1) TP-P & EVR
1) Connect an voltmeter to TP-P
2) Adjust the EVR so that DC voltage is
DC1.6±0.2Vp-p.
2. VCOM
1) TP-L & EVR
2) Connect an voltmeter to TP-L.
3) Adjust the EVR so that DC voltage is
5.6±0.05Vp-p (pedestal to pedestal).
3. BRIGHTNESS
1) TP-G & EVR
2) Connect an oscilloscope probe to TP-G.
3) Adjust the EVR so that bright level is 8.0Vp-p
(pedestal to pedestal).
EVF Adjust Mode
(Short)
Note : When adjusting EVF be sure to short circuit between Ground and "A"part to store
the confirmed data in EEPROM when pushing ON/OFF button.
After finishing the adjustment, you have to reset.
4-34
4. CONTRAST
1) TP-B & EVR
2) Connect an oscilloscope probe to TP-B.
3) Adjust the EVR so that A level is 2.0Vp-p .
B
L
R
G
GND
10P CON
A
PEDISTAL
TO PEDISTAL
A
P
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