Samsung VPL500 Service Manual page 56

4. Location of Adjustment TP
X-TAL
14P
G
B R
24P-LCD
Note: In LCD adjustment mode, when shorting
"A" of PCB to GND and pressing the
START/STOP button. Store in EEPROM.
Reset after adjustment is complete.
4-2-4 (b) Adjustment
1. VCO
1) TP-VCO & EVR
2) Connect an voltmeter to TP-VCO.
3) Adjust the EVR so that DC voltage is DC
1.6±0.05 V.
2. VCOM
1) TP-COM & EVR
2) Connect an voltmeter to TP-COM.
3) Adjust the EVR so that DC voltage is DC
1.45±0.05 V.
3. Brightness
1) TP-COM & EVR
2) Connect an oscilloscope probe to TP-COM.
3) Adjust the EVR so that level is 6.4± 0.1 Vp-p.
Samsung Electronics
A
VCO
VCOM
10P-BL
4. R-Sub Brightness
1) TP-R & EVR
2) Connect an oscilloscope probe to TP-R.
3) Adjust the EVR so that pedestal level is equal to
TP-G level.
5. B-Sub Brightness
1) TP-B & EVR
2) Connect an oscilloscope probe to TP-B.
3) Adjust the EVR so that pedestal level is equal to
TP-G level.
6. Color
a) TP-B & EVR
b) Connect an oscilloscope probe to TP-B.
c) Adjust the EVR so that yellow level is equal to
pedestal level.
Alignment and Adjustment
6.4Vp-p
LEVEL
(PEDESTAL
TO
)
PEDESTAL
4-37