LG 50PT85-ZB (CHASSIS:PD74A) Service Manual ▷ View online
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8. Auto RF/AV/S-VIDEO Color Balance
8-1. Requirement
V
This AV color balance adjustment should be performed
before white Balance Adjustment.
8-2. Required Equipment
1) Remote controller for adjustment.
2) MSPG-925FS Pattern Generator (Which has Video Signal:
2) MSPG-925FS Pattern Generator (Which has Video Signal:
7 Color Bar Pattern shown in Fig.3).
(1) Model: 202 / Pattern: 65 - Models use PAL-BGDHI.
(1) Model: 202 / Pattern: 65 - Models use PAL-BGDHI.
(composite signal)
8-3. Method of Auto RF/AV/S-VIDEO Color
Balance(PAL_BGDHI)
1) Input the PAL Video signal 7 color Bar (MSPG-925FS
Model : 202, pattern : 65) signal into AV3.
2) Set the PSM to Dynamic mode in the Picture menu.
3) Press INSTART key on R/C for adjustment.
3) Press INSTART key on R/C for adjustment.
4) Press the
G
(Vol. +) key operate to set, then it becomes
automatically.
5) Auto-RGB OK means completed adjustment.
9. Adjustment of Component
9-1. Requirement
V
This AV color balance adjustment should be performed
before white Balance Adjustment.
9-2. Required Equipment
1) Remote controller for adjustment.
2) MSPG-925FS Pattern Generator (Which has Video Signal:
2) MSPG-925FS Pattern Generator (Which has Video Signal:
7 Color Bar Pattern shown in Fig.5).
(1) Model: 215 / Pattern: 65 - Models use component.
(1) Model: 215 / Pattern: 65 - Models use component.
9-3. Method of Auto Component Color Balance
1) Input the Component 720p/50Hz 7 Color Bar (MSPG-
925FS Model : 215, pattern : 65) signal into Component.
2) Set the PSM to Dynamic mode in the Picture menu.
3) Press IN-START key on R/C for adjustment.
3) Press IN-START key on R/C for adjustment.
4) Press the
G
(Vol. +) key to operate the set, then it becomes
automatically.
5) Auto-RGB OK means the adjustment is completed.
10. Adjustment of RGB
10-1. Requirement
V
This AV color balance adjustment should be performed
before white Balance Adjustment.
10-2. Required Equipment
1) Remote controller for adjustment.
2) MSPG-925FS Pattern Generator (Which has Video Signal:
2) MSPG-925FS Pattern Generator (Which has Video Signal:
7 Color Bar Pattern shown in Fig.7).
(1) Model: 3 / Pattern: 65 - Models use RGB
(1) Model: 3 / Pattern: 65 - Models use RGB
10-3. Method of Auto RGB Color Balance
1) Input the PC 1024x768 @ 60Hz 7 color bar (MSPG-925FS,
Model : 3, Pattern : 65) signal into RGB.(using D-sub to D-
sub cable)
sub cable)
2) Set the PSM to Dynamic mode in Picture menu.
3) Press the IN-START key on R/C for adjustment.
3) Press the IN-START key on R/C for adjustment.
4) Press the
G
(Vol. +) key operate to set , then it becomes
automatically.
5) Auto-RGB OK means adjustment is completed.
(Fig.3) Color Bar signal
(Fig.4) Color Bar signal
(Fig.5) Color Bar signal
(Fig.6) Color Bar signal
(Fig.7) Color Bar signal
(Fig.8) Color Bar signal
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11. Scart RGB(DVR) Adjustment Mode
11-1. Required Equipment
1) Remote controller for adjustment
2) MSPG-925FS Pattern Generator (Which has Video Signal:
2) MSPG-925FS Pattern Generator (Which has Video Signal:
7 Color Bar Pattern shown in Fig.9)
(1) Model: 232 / Pattern: 08
(1) Model: 232 / Pattern: 08
11-2. Method of Auto Scart RGB(DVB) Balance
1) Input the Video Signal : Color Bar signal into AV1(using Full
Scart Cable).
2) Set the PSM to Dynamic mode in Picture menu.
3) Press the IN-START key on R/C for adjustment.
3) Press the IN-START key on R/C for adjustment.
4) Press the TURBO-PICTURE Key on R/C for adjustment.
5) Press the
5) Press the
G
(Vol. +) key operate To set , then it becomes
automatically.(Fig.7)
6) Scart RGB(DVR) OK means Scart RGB adjustment is
completed.
12. Adjustment of White Balance
12-1. Required Equipment
(1) Color Analyzer(CA-100+/CH.10)
1) Remote controller of adjustment -> Color Analyzer(CA-
100+ of same product) : CH 10
2) Auto W/B adjustment instrument.(only for Auto
Adjustment) -> AV Pattern Generator.
W
Color temperature standards according to CSM and Module.
W
White balance adjustment coordinate and color temperature.
* PC(for communication through RS-232C)
-> UART Baud rate : 115200 bps
* Luminance Y AV : upper 150cd/m
2
(Typ : 350cd/m
2
)
-> Applying to Cool, Medium, Warm mode.
12-2. Connection Picture of the Measuring
Instrument(On Automatic control)
(1) 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.
power supply) and heat-run over 15 minutes.
the mode of White-Balance, the pattern will come out.
power supply) and heat-run over 15 minutes.
(Fig.10) Color bar Signal
(Fig.11) Auto AV(CVBS) Color Balance Test Pattern
Full White Pattern
RS-232C Communication
CA-210
Color
ANALYZER
TYPE : CA-210
(Fig.9) Color Bar signal
PLASMA
Remark
11000K
9300K
6500K
Cool
Normal
Warm
CSM
Cool
CS-100
CA-210(CH 10)
x
0.276
0.276±0.002
y
0.283
0.283±0.002
∆uv
0.000
0.000
Medium
CS-100
CA-210(CH 10)
x
0.285
0.285±0.002
y
0.293
0.293±0.002
∆uv
0.000
0.000
Warm
CS-100
CA-210(CH 10)
x
0.313
0.313±0.002
y
0.329
0.329±0.002
∆uv
0.004
0.004
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V
Auto adjustment Map(RS-232C)
12-3. 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) Measure and adjust after sticking the Color Analyzer(CA-
100+, CA-210) to the side of the module.
(3) Aging time
- After aging start, keep the power on(no suspension of
power supply) and heat-run over 15minutes.
- Keep white pattern using inside pattern.
13. Adjustment of White Balance
(Manual white Balance)
V
One of R Gain/ G Gain/ B Gain should be kept on 80, and
others are controlled lowering from 80
(1) press “power on” of the control R/C, set heat run to white
by pressing
G
and heat run over 15 minutes.
(Set: RS-232 Host: PC, Baud Rate: 115200bps,
Download: Cortez)
2) Zero Calibrate CA-100+, and when controlling, stick the
sensor to the center of PDP module surface.
3) Double click In-start key on Controlling R/C and get in
‘white balance’.
4) Set test-pattern on and display inside pattern. Control is
carried out on three color temperature, COOL, MEDIUM,
WARM. (Control is carried out three times,)
WARM. (Control is carried out three times,)
5) When the R/G/B GAIN is 80 on OSD, it is the FULL
DYNAMIC Range of the Module. In order to control white
balance without the saturation of FULL DYNAMIC Range
and DATA, one of R Gain / G Gain / B Gain should be kept
on 80, and other two is controlled lowering from 80.
balance without the saturation of FULL DYNAMIC Range
and DATA, one of R Gain / G Gain / B Gain should be kept
on 80, and other two is controlled lowering from 80.
* Color Temperature: Cool, Medium, Warm
(1) When R GAIN is set to 80
- Control G GAIN and B GAIN by lowering from 80.
(2) When B GAIN is set to 80
- Control R GAIN and G GAIN by lowering from 80.
(3) When G GAIN is set to 80
- Control R GAIN and B GAIN by lowering from 80.
- Control R GAIN and B GAIN by lowering from 80.
One of R Gain / G Gain / B Gain should be kept on 80, and
adjust other two lower than 80.
(When R/G/B GAIN are all 80, it is the FULL DYNAMIC
Range of Module).
adjust other two lower than 80.
(When R/G/B GAIN are all 80, it is the FULL DYNAMIC
Range of Module).
14. Default Value in Adjustment mode
14-1. Auto Color Balance
14-2. Write Balance
(Fig.12) Default Value on OSD
<Component>
<RGB>
(Fig.13) Default Value on OSD
Type
PD74A
Baud Rate
Data bit
Stop bit
Parity
115200
8
1
None
Protocol
Index
Cmd 1 Cmd 2
Data Min Value
Max Value
Setting
R-Gain_Normal
j
a
00(00)
128(80)
G-Gain_Normal
j
b
00(00)
128(80)
B-Gain_Normal
j
c
00(00)
128(80)
R-Gain_Warm
j
d
00(00)
128(80)
G-Gain_Warm
j
e
00(00)
128(80)
B-Gain_Warm
j
f00(00)
128(80)
R-Gain_Cool
j
g
00(00)
128(80)
G-Gain_Cool
j
h
00(00)
128(80)
B-Gain_Cool
j
i
00(00)
128(80)
R-Offset_Normal
l
j
00(00)
128(80)
G-Offset_Normal
l
k
00(00)
128(80)
B-Offset_Normal
l
l
00(00)
128(80)
R-Offset_Warm
l
m
00(00)
128(80)
G-Offset_Warm
l
n
00(00)
128(80)
B-Offset_Warm
l
o
00(00)
128(80)
R-Offset_Cool
l
p
00(00)
128(80)
G-Offset_Cool
l
q
00(00)
128(80)
B-Offset_Cool
l
r
00(00)
128(80)
w
b
00
W/B adjustment Start
w
b
10
w
b
ff
W/B adjustment end
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15. Set information(Serial No & Model name)
(1) Setting up like bottom figure (After setting white balance,
this is set)
1) Press ADJ Key in the Adjust remocon.
2) Select “System Control 2” by using
1) Press ADJ Key in the Adjust remocon.
2) Select “System Control 2” by using
D
/
E
(CH+/-) key,
and press
A
(ENTER).
3) Using Adjust remocon, RS-232 Host & Baud Rate &
Download value change (RS-232 Host:Gprobe, Baud
Rate:115200bps, Download:Cortez)
Rate:115200bps, Download:Cortez)
(2) Bar-code scanning
1) Push the menu button in DTV mode.
Select the STATION -> Diagnostics -> To set
2) Check the Serial Number.
16. Select method of Tool option
(1) Press ADJ Key in the Adjust remote control.
(2) Select “Tool option 1” and “Tool option2” by using
(2) Select “Tool option 1” and “Tool option2” by using
D
/
E
(CH+/-) key, and press
A
(ENTER).
(3) TOOL OPTION1
1) Select “Maker” by using
D
/
E
(CH+/-) key, and change
the module maker and. applied module classification by
using
using
F
/
G
(VOL+/-).
2) Select “Inch” by using
D
/
E
(CH+/-) key, and change the
module according to the inch of model.
(4) TOOL OPTION2
1) Select “TOOL NUM” by using
D
/
E
(CH+/-) key, and
change the module maker and. applied module
classification by using
classification by using
F
/
G
(VOL+/-).
2) Select “FAN” by using
D
/
E
(CH+/-) key, change the
module according to the inch of model.
3) Select “DIGITAL” by using
D
/
E
(CH+/-) key, and change
the tool name according to the model.
( Inch of model : “42,50” Applied module under the calassificatoin : )
6) After changing the Tool option1,2, push the EXIT Key.
Tool option1
Maker
Inch
Tool
2048
LGX4
42
PT85
2052
LGX4
50
PT85
Tool option2
Suffix
FAN
DIGITAL AMP
1665
KE*L(Y)LMP
0
1
1921
KE*L(Y)LMP
1
1
1665
KE*FLMP
0
1
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