Samsung VPL500, Service Manual

Page: 49 / 147

Samsung Electronics 4-30
Alignment and Adjustment
4. B-Sub Brightness (ADDRESS : 5.B-SUB)
1) Connect an oscilloscope probe to TP-B.
2) Adjust the EVR so that B OUT(Blue) level is
8.0Vp-p (pedestal to pedestal).
5. Color(ADDRESS : 1.COLOR)
1) Connect an oscilloscope probe to TP-B.
2) Adjust the EVR so that the Yellow level is equal
to the pedestal line.
8.0V
(PEDESTAL TO
PEDESTAL)
4-2-3 (b) ADJUSTMENT
1. PLL (ADDRESS : 8.PLL)
1) Connect an multimeter probe to TP-P
2) Adjust the EVR so that DC voltage is
DC1.8±0.05Vp-p.
2. Brightness (ADDRESS : 2.BRIGHT)
1) Connect an oscilloscope probe to TP-G.
2) Adjust EVR so that bright(Green) level is
8.0V±0.1Vp-p (pedestal to pedestal).
3. R-Sub Brightness (ADDRESS : 4.R-SUB)
1) Connect an oscilloscope probe to TP-R
2) Adjust the EVR so that R-OUT(Red) level is
8.0Vp-p (pedestal to pedestal).
1.8V
8.0V
(PEDESTAL TO
PEDESTAL)
8.0V
(PEDESTAL TO
PEDESTAL)
YELLOW LEVEL
PEDESTAL
LINE
GREEN LEVEL
RED LEVEL