Read LG 42LY99-ZC (CHASSIS:LD75C) Service Manual online
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* Before White-balance, the AV ADC should be done.
6. White Balance
* Test Equipment
Color Analyzer (42LY99-ZC use WCG Panel. If you use CA-
210, CH.12 should be selected)
: When you adjust LCD color temperature on Color analyzer
(CA-210), you should use Channel 9 in NCG Module and
Channel 12 in WCG. Matrix compensated (White, Red,
Green, Blue revised) by CS-1000 and can be helped in
accordance with White balance adjustment coordinate which
is specified on the next.
210, CH.12 should be selected)
: When you adjust LCD color temperature on Color analyzer
(CA-210), you should use Channel 9 in NCG Module and
Channel 12 in WCG. Matrix compensated (White, Red,
Green, Blue revised) by CS-1000 and can be helped 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
- PC (for communication through RS-232C)
-> UART Baud rate : 115200 bps
- Luminance Y AV : upper 200 cd/m
2
≥ (Typ : 350 cd/m
2
)
-> Applying to Cool
* 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.
: 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.
- Measurement color analyzer : CS1000 or CA210(CH 12)
- Auto adjustment Map (RS-232C)
* 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) Adhere closely the Color Analyzer (CA-210) to the
module less than 10cm distance, keep it with the surface
of the Module and Color Analyzer’s Prove
vertically.(80~100°).
of the Module and Color Analyzer’s Prove
vertically.(80~100°).
3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 15 minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others,
check the back light on.
CS-1000
CA-210(CH 9)
CA-100+(CH9)
Cool
x
0.276±0.002
0.276±0.002
0.276±0.002
y
0.283±0.002
0.283±0.002
0.283±0.002
Temp.
11000
11000
11000
Δuv
0.000
0.000
0.000
Medium
x
0.285±0.002
0.285±0.002
0.285±0.002
y
0.293±0.002
0.293±0.002
0.293±0.002
Temp.
9300
9300
9300
Δuv
0.000
0.000
0.000
Warm
x
0.313±0.002
0.313±0.002
0.313±0.002
y
0.329±0.002
0.329±0.002
0.329±0.002
Temp.
6500
6500
6500
Δuv
0.003
0.003
0.003
<Fig. 2> Connecting picture (On Automatic Control)
Type
LD73C
Baud Rate
Data bit
Stop bit
Parity
115200
8
1
None
Index
Cmd 1 Cmd 2 Data Min Value
Max Value
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
Starting W/B ADJ
w
b
10
Using internal Pattern
w
b
ff
Ending W/B ADJ
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