Adjustment Method - LG 42PG6000 Service Manual

Each PCB assembly must be checked by check JIG set.
(Because power PCB Assembly damages to PDP Module,
especially be careful)
9. POWER PCB Assy Voltage
Adjustments
9-1. Test Equipment :
9-2.Connection Diagram for Measuring
: refer to Fig.1

9-3. Adjustment Method

(1) Va Adjustment
1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D.M.M to Va pin of P811, connect
- terminal to GND pin of P811.
3) After turning VR901, voltage of D.M.M adjustment as
same as Va voltage which on label of panel right/top.
(Deviation; ±0.5V)
(2) Vs Adjustment
1) Connect + terminal of D.M.M to Vs pin of P811, connect
– terminal to GND pin of P811.
2) After turning VR951, voltage of D.M.M adjustment as
same as Va voltage which on label of panel right/top.
(Deviation; ±0.5V)
(Fig.1) Connection diagram of power adjustment for measuring
Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
(Va, Vs Voltage adjustments)
D.M.M. 1EA
* Before adjusting White-balance, the AV ADC should be done.
If ADC status were "NG", Need to ADC adjustment.
10. Adjustment of White Balance
10-1. Required Equipment
(1) Color Analyzer : CS-100, CA-100+(CH.10), CA-
210(CH.10))
* Please adjust CA-100+/CA-210 by CS-1000 before
measuring.
-> You should use Channel 10 which is Matrix
compensated.
N
Color temperature standards according to CSM and Module.
CSM PLASMA
Cool 11000K
Normal 9300K
Warm 6500K
N
Change target luminance and range of the Auto adjustment
W/B equipment.
Target luminance
Range
N
White balance adjustment coordinate and color temperature.
Cool CS-1000
0.276
X
y 0.283
uv 0.000
Medium CS-1000
0.285
X
y 0.293
uv 0.000
Warm CS-1000
X 0.313
y 0.329
uv 0.003
- 8 -
Remark
65
20
CA-100+(CH.10) CA-210(CH.10)
0.276±0.002 0.276±0.002
0.283±0.002 0.283±0.002
0.000 0.000
CA-100+(CH.10) CA-210(CH.10)
0.285±0.002 0.285±0.002
0.293±0.002 0.293±0.002
0.000 0.000
CA-100+(CH.10) CA-210(CH.10)
0.313±0.002 0.313±0.002
0.329±0.002 0.329±0.002
0.003 0.003
LGE Internal Use Only