Read LG 32LB75 / 32LB76 (CHASSIS:LD73C) Service Manual online
(2) 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 the IN-START key on R/C for adjustment.
4) Press the
3) Press the 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.
6.3 Adjustment of RGB
(1) Required Equipments
- Remote controller for adjustment
- MSPG-925F Pattern Generator
- MSPG-925F Pattern Generator
(Which has XGA [1024*768] 60Hz 8 Color Bar pattern
shown in Fig. 1)
shown in Fig. 1)
(2) Method of Auto RGB Color Balance
1) Input the PC 1024x768@60Hz 100% Color Bar pattern
(MSPG-925F model:37, pattern:33) into RGB.
(Using D-sub to D-sub cable)
(Using D-sub to D-sub cable)
2) Set the PSM to Dynamic mode in Picture menu.
3) Press the IN-START key on R/C for adjustment
4) Press the
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.
* Before White-balance, the AV ADC should be done.
7. White Balance
(1) Test Equipment
1) Color Analyzer (CA-210/CH.9)
When you adjust LCD color temperature, on color analyzer
(CA-210), you should use Channel 9 which is Matrix
compensated (White, Red, Green, Blue revised) by CS-
1000 and adjust in accordance with White balance
adjustment coordinate which is specified on the next.
(CA-210), you should use Channel 9 which is Matrix
compensated (White, Red, Green, Blue revised) by CS-
1000 and adjust in accordance with White balance
adjustment coordinate which is specified on the next.
* Color temperature standards according to CSM and Module
Cool : 11,000k
Medium : 9,300k
Warm : 6,500k
Medium : 9,300k
Warm : 6,500k
* White balance adjustment coordinate and color
temperature
2) PC (for communication through RS-232C)
-> UART Baud rate : 115200 bps
3) Luminance Y AV : upper 200 cd/m
2
≥ (Typ : 350 cd/m
2
)
-> Applying to Cool mode
(2) Connecting 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.
to auto controller or push control R/C IN-START -> Enter
the mode of White-Balance, the pattern will come out.
1) Measurement colo analyzer : CS1000 or CA210(CH. 9)
2) Auto adjustment Map (RS-232C)
- 11 -
Cool
CS-1000
CA-210(CH 9)
x
0.276
0.276±0.002
y
0.283
0.283±0.002
Δuv
0.000
0.000
Medium
CS-1000
CA-210(CH 9)
x
0.285
0.285±0.002
y
0.293
0.293±0.002
Δuv
0.000
0.000
Warm
CS-1000
CA-210(CH 9)
x
0.313
0.313±0.002
y
0.329
0.329±0.002
Δuv
0.003
0.003
<Fig. 2> Connecting picture (On Automatic Control)
Type
LD73A
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
f
00(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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