LG 50PG79ED-AF (CHASSIS:PA84D) Service Manual ▷ View online
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(4) 50” Vs Adjustment(refer Fig. 2)
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)
±0.5V)
(5) 42” Va Adjustment(refer Fig. 3)
1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D.M.M to Va pin of P811, connect -
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)
±0.5V)
(6) 42” Vs Adjustment(refer Fig. 3)
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)
±0.5V)
(7) 50” Va Adjustment (refer Fig. 4)
1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D. M..M. to Va pin of P816, connect
2) Connect + terminal of D. M..M. to Va pin of P816, connect
-terminal to GND pin of P816.
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)
±0.5V)
(8) 50” Vs Adjustment (refer fig. 4)
1) Connect + terminal of D. M..M. to Vs pin of P816, connect
-terminal to GND pin of P816.
2) After turning VR951, voltage of D.M.M adjustment as same
as Vs voltage which on label of panel right/top (deviation ;
±0.5V)
±0.5V)
(9) 60” Va Adjustment (refer Fig. 5)
1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D. M..M. to Va pin of P816, connect
2) Connect + terminal of D. M..M. to Va pin of P816, connect
-terminal to GND pin of P816.
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)
±0.5V)
(10) 60” Vs Adjustment (refer Fig. 5)
1) Connect + terminal of D. M..M. to Vs pin of P816, connect
-terminal to GND pin of P816.
2) After turning VR951, voltage of D.M.M adjustment as same
as Vs voltage which on label of panel right/top (deviation;
±0.5V)
±0.5V)
(Fig. 2) 50inch Power PCB Assy Voltage Adjustment
(Fig. 4) 50inch Full HD Power PCB Assy Voltage adjustment
(Fig. 5) 60inch Full HD Power PCB Assy Voltage Adjustment
(Fig. 3) 42inch Power PCB Assy Voltage Adjustment
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9. Adjustment of White Balance
Caution: Press the POWER ON KEY on R/C before W/B
adjustment.
Before adjusting White-Balance, the AV ADC should be done.
If ADC status were “NG”, Need to ADC adjustment.
adjustment.
Before adjusting White-Balance, the AV ADC should be done.
If ADC status were “NG”, Need to ADC adjustment.
9-1. Required Equipment
(1) Color Analyzer (CS-1000, 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(White, Red, Green, Blue revised) by CS-
1000 and adjust in accordance with White balance
adjustment coordinate.
1000 and adjust in accordance with White balance
adjustment coordinate.
O
Color temperature standards according to CSM and Module
O
Change target luminance and range of the Auto adjustment
W/B equipment.
O
White balance adjustment coordinate and color temperature.
[
PC(for communication through RS-232C) -> UART Baud
rate : 115200 bps
9-2. Connection Picture of the Measuring
Instrument(On Automatic control)
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push control R/C IN-START -> Enter the
mode of White-Balance, the pattern will come out.
auto controller or push control R/C IN-START -> Enter the
mode of White-Balance, the pattern will come out.
9-3. Auto-Control Interface and Directions
(1) Adjust in the place where the influx of light like floodlight
around is blocked.(illumination is less than 10ux)
(2) In case of PDP: Measure and adjust after sticking the
Color Analyzer (CA-100+, CA210 ) to the side of the
module.
module.
(3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 15 minutes.
- In case of PDP, keep white pattern using inside pattern.
- In case of LCD, using ‘no signal’ or ‘full white pattern’ or
- In case of LCD, using ‘no signal’ or ‘full white pattern’ or
the others, check the back light on.
O
Auto adjustment Map(RS-232C)
65
20
Range
Target luminance
0.276
0.283
0.000
0.276±0.002
0.283±0.002
0.000
0.276±0.002
0.283±0.002
0.000
X
y
uv
Cool
CS-1000
CA-100+(CH.10) CA-210(CH.10)
0.285
0.293
0.000
0.285±0.002
0.293±0.002
0.000
0.285±0.002
0.293±0.002
0.000
X
y
uv
Medium
CS-1000
CA-100+(CH.10) CA-210(CH.10)
0.313
0.329
0.003
0.313±0.002
0.329±0.002
0.003
0.313±0.002
0.329±0.002
0.003
X
y
uv
Warm
CS-1000
CA-100+(CH.10) CA-210(CH.10)
Full White Pattern
RS-232C Communication
CA-210
Color
ANALYZER
TYPE : CA-210
(Fig. 6) Connecting picture(On Automatic Control)
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9-4. Manual White Balance
(1) Zero Calibrate CA-100+ / CA-210, and when controlling,
stick the sensor to the center of PDP module surface.
(2) Press the ADJ KEY on R/C and enter EZ ADJUST
Select “2. White Balance” and press
G
(VOL +)
Set test-pattern on and display inside pattern.
(3) Control is carried out on three color temperatures, COOL,
MEDIUM,WARM.
(Control is carried out thress times)
(Control is carried out thress times)
<Temperature : COOL>
- R-Cut / G-Cut / B-Cut is set to 64
- Control R-Gain and G-Gain.
- Each Gain is limited to 192.
- Control R-Gain and G-Gain.
- Each Gain is limited to 192.
<Temperature : MEDIUM>
- R-Cut / G-Cut / B-Cut is set to 64
- Control R-Gain and G-Gain.
- Each Gain is limited to 192.
- Control R-Gain and G-Gain.
- Each Gain is limited to 192.
<Temperature : WARM>
- R-Cut / G-Cut / B-Cut is set to 64
- Control G-Gain and B-Gain.
- Each Gain is limited to 192.
- Control G-Gain and B-Gain.
- Each Gain is limited to 192.
TROUBLE SHOOTING GUIDE
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