Required Equipment - LG MT-50PZ40 Service Manual

(2) Vs adjustment
1) Connect + terminal of D.M.M to Vs pin of P805 and
connect – terminal to GND pin of P805.
2) After turning the VR1, voltage of D.M.M adjustment as
same as Vs voltage which on label of panel Right/Top.
(Deviation : ±0.5V)
Va voltage
adjustment
variable resistor
Vs voltage
VR4
adjustment
variable resistor
VR1
<Fig 1> Connection Diagram of Power Adjustment for Measuring
RV401
Vs ADJ
Vs voltage
adjustment
variable resistor RV601
Va ADJ
<Fig 1> Connection Diagram of Power Adjustment for Measuring
6. Adjustment of White Balance

6-1. Required Equipment

Color analyzer (CA-100 or same product)
6-2. Connection Diagram of Equipment for
Measuring
(Manual Adjustment)
P806
P805
GND
GND
Va
NC
Vs
Vs
DMM
P806 P806
P805 P805
GND GND
GND GND
Va Va
NC NC
Vs Vs
Vs Vs
DMM DMM
+ -
Va voltage
adjustment
variable resistor
R-L 70
G-L 70
R-M 128
G-M 128
Low Light
R-H 216
G-H 216
70 Gray Level
±
115 5Cd/§‡
<Fig 2> Connection Diagram of Manual Adjustment(Low Light)
R-L 70
G-L 70
R-M 128
G-M 128
Middle Light
R-H 216
G-H 216
128 Gray Level
±
55 5Cd/§‡
<Fig 3> Connection Diagram of Manual Adjustment(Middle Light)
R-L 70
G-L 70
R-M 128
G-M 128
High Light
R-H 216
G-H 216
216 Gray Level
±
115 5Cd/§‡
<Fig 4> Connection Diagram of Manual Adjustment(High Light)
6-3. Adjustment of White Balance
Operate the Zero-calibration of the CA-100, then stick sensor
O
to PDP module surface when you adjust.
For manual adjustment, it is also possible by the following
O
sequence.
(1) Select WHITE PATTERN of HEAT RUN mode by pressing
POWER ON KEY on remote control for adjustment then
operate HEAT RUN more than 15 minute.
(2) Supply 216Gray, 128Gray, 70Gray Level, 50% size length
and breadth signal to RGB1 input. (Refer to Fig 2,3,4)
(3) W/B adjustment must be adjusted once and follow the
sequence of Low Light --> Middle Light --> High Light and
then save the adjustment value with
- 9 -
COLOR
ANALYZER
TYPE;CA-100
RGB Signal Input
PDP MONITOR
Window
MSPG-2100 or
MSTG-5200
COLOR
ANALYZER
TYPE;CA-100
RGB Signal Input
PDP MONITOR
Window
MSPG-2100 or
MSTG-5200
COLOR
ANALYZER
TYPE;CA-100
RGB Signal Input
PDP MONITOR
Window
MSPG-2100 or
MSTG-5200
o Key.