Read LG 60PM4M-WA (CHASSIS:PM75A) Service Manual online
- 10 -
ADJUSTMENT INSTRUCTIONS
11. White Balance
- Before White-balance, the AV ADC should be done.(INPUT
AV1)
- AV ADC(AV1) should be done before White-balance.
* Note : Before White-balance, change input mode
Move to AV1 by using the FRONT-AV KEY on remote controller.
Move to AV1 by using the FRONT-AV KEY on remote controller.
11-1. Test Equipment
(1) Color Analyzer (CA-100 / CH10)
(2) PC(for communication through RS-232C)
(2) PC(for communication through RS-232C)
-> UART Baud rate : 115200.
(3) Pattern Generator(MSPG-925FA etc.)
W
Target Value(PSM:Standard, CSM:Normal).
=> Reference Value(Automatically fixed)
- Coo : 11000K
±
1000K
- Warm : 7200K
±
1000K
11-2 Manual White Balance(AV)
(1) Execute CA-100 Zero Calibration.
(2) Execute the SET Heat Run for 30minutes
(3) As below Fig.6, Supply 216Level (85 IRE) full screen
(2) Execute the SET Heat Run for 30minutes
(3) As below Fig.6, Supply 216Level (85 IRE) full screen
pattern to Video input.
(4) Press the FRONT-AV KEY on R/C for converting input
mode.
(5) Set the PSM to Standard mode in Picture menu.
(6) Enter the White Balance adjustment mode by pressing the
(6) Enter the White Balance adjustment mode by pressing the
INSTART key twice(White Balance) on R/C.
(7) Stick sensor to center of the screen and select each items
(Red/Green/Blue Gain and Offset) using
D
/
E
(CH+/-) key
on R/C..
(8) Adjust Only High Light with R Gain / B Gain using
F
/
G
(VOL+/-) key on R/C.
(9) Adjust it until color coordination becomes as below.
1) X-axis : 0.283
±
0.003
2) Y-axis : 0.298
±
0.003
(R/G/B gain and R/G/B offset Default values are different in
according to using module )
according to using module )
(10) Adjust High light with R/B Gain.
80 ± 20Cd/m2(42XGA)
60 ± 20Cd/m2(50XGA)
X 0.283 ± 0.002
Y 0.298 ± 0.002
9,300
°K
± 500
°
K
- System control RS-232 Host should be “PC” for adjustment.
- AV ADC(AV1) should be done before White-balance.
- AV ADC(AV1) should be done before White-balance.
High Light
High Light
Brightness
Color Coordinate
Color Temperature
White balance
MSPG925FA
216Level(85IRE)
Full screen pattern
NTSC(VIDEO 1)
Model : 201
[
NTSC Video
(Fig. 6)
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