Read LG 26LC7D (CHASSIS:LB73A) Service Manual online
- 11 -
7. Adjustment of White Balance
7-1. Required Equipment
(1) Color analyzer (CA-210 or similar product)
(2) Automatic adjustor (with automatic adjustment hour
(2) Automatic adjustor (with automatic adjustment hour
necessity and the RS-232C communication being possible)
7-2. Connection Diagram of Equipment
for Measuring
(Automatic Adjustment)
7-3. Process of automatic adjustment
(1) As using the white pattern for adjustment the inner part,
HDMI connection need not. But as lower part, the RS-232C
Command is used.
Wb 00 00 start of automatic adjustment the white balance.
Wb 00 10 Start of gain adjustment.(inside pattern)
Ja 00 ff
Wb 00 10 Start of gain adjustment.(inside pattern)
Ja 00 ff
Adjustment Date.
Jb 00 c0
...
Wb 00 1f Ending gain adjustment.
As occasion demands , adjust the offset.
( Wb 00 20(Start) , Wb 00 2f(end))
...
Wb 00 1f Ending gain adjustment.
As occasion demands , adjust the offset.
( Wb 00 20(Start) , Wb 00 2f(end))
Caution) When you adjust automatically, RS-232C
Command is used.
* Baud Rate : 115200
Command is used.
* Baud Rate : 115200
[ RS-232C Command
(Automatic Adjustment)
- Operate the automatic adjustment by using ‘power only’ key
on service remote control. And set the Baud Rate to 115200.
- It must start to “wb 00 00”, complete to “wb 00 ff”.
- Adjust offset.
- Adjust offset.
7-4. Adjustment of White Balance
(Passivity Adjustment)
O
Operate Zero Calibration of the CA-210.
O
Manual adjustment is also possible by the following sequence.
(1) Enter to ‘7. White-Balance’ by pressing the ADJ key on the
service remote control.
(2) Select Test Pattern White with ADJ key and HEAT RUN at
least 15 minutes.
(3) Select picture control condition to ‘Dynamic’.
Stick the sensor on center of screen. And select ‘6.White-
Balance of ‘Ez- Adjust’ with ADJ key on service remote
control and Enter to adjustment mode by pressing right
key(
Balance of ‘Ez- Adjust’ with ADJ key on service remote
control and Enter to adjustment mode by pressing right
key(
G
).
(4) Adjust with Volume ± key.
- Value of bright : High Level -> 216gray
[Cool]
Color coordinates : X; 0.272±0.015 Y; 0.278±0.015
Color temperature: 12000°K ±1000°K
dUV: ±0dUV
Color coordinates : X; 0.272±0.015 Y; 0.278±0.015
Color temperature: 12000°K ±1000°K
dUV: ±0dUV
[Medium]
Color coordinates : X; 0.285±0.015 Y; 0.293±0.015
Color temperature: 9300°K±1000°K
dUV: ±0dUV
Color coordinates : X; 0.285±0.015 Y; 0.293±0.015
Color temperature: 9300°K±1000°K
dUV: ±0dUV
[Warm]
Color coordinates : X; 0.313±0.015 Y; 0.329±0.015
Color temperature: 6500°K±1000°K
dUV: ±3dUV
Color coordinates : X; 0.313±0.015 Y; 0.329±0.015
Color temperature: 6500°K±1000°K
dUV: ±3dUV
(5) After adjustment is completed, move to ‘Ez-Adjust’ by
pressing
A
key exit the adjustment mode by pressing the
ADJ key.
216 FULL WHITE
MSPG-925 series
Window
COLOR
ANALYZER
TYPE; CA-210
HDMI signal input
LCD TV part
R Gain
G Gain
B Gain
R Offset
G Offset
B Offset
CENTER
(DEFAULT)(Hex)
00
00
00
FE
FE
FE
7f
7f
7f
Min
Max
C0
C0
C0
41
42
40
Cool
C0
C0
C0
40
41
40
Mid
C0
C0
C0
3F
41
41
Warm
RS-232C COMMAND
[CMD ID DATA]
jg
jh
ji
Cool
ja
jb
jc
Mid
jd
je
jf
Warm
Click on the first or last page to see other 26LC7D (CHASSIS:LB73A) service manuals if exist.