Read LG 42PT250-ZG (CHASSIS:PD13K) Service Manual online
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7. Total Assembly line process
7-1. POWER PCB Assy voltage adjustment
(Vs voltage adjustment)
O
Required Equipment for adjustment
- D.M.M
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Condition for adjustment
- No signal with the snow noise in RF mode)
7-2. Adjustment Preparation
- Required Equipment
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Remote controller for adjustment
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Color Analyzer ( CS-1000, CA-100,100+,CA-210 or same
product : CH 10 (PDP)
product : CH 10 (PDP)
* Please adjust CA-210, CA-100+ by CS-1000 before
measuring
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Auto W/B adjustment instrument(only for Auto adjustment)
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9 Pin D-Sub Jack(RS232C) is connected to the AUTO W/B
EQUIPMENT.
EQUIPMENT.
Before Adjust of White Balance, Please press POWER ONLY
key
key
Adjust Process will start by execute RS232C Command.
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Color temperature standards according to CSM and Module
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CS-1000/CA-100+/CA-210(CH 10)
White balance adjustment coordinates and color temperature.
* Connecting picture of the measuring instrument (On
Automatic control)
- Inside PATTERN is used when W/B is controlled. Connect
to auto controller or push Adjustment R/C POWER-ON
->Enter the mode of White-Balance, the pattern will come
out.
->Enter the mode of White-Balance, the pattern will come
out.
* Auto-control interface and directions
(1) Adjust in the place where the influx of light like floodlight
(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+, CA210 ) 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 5 minutes
power supply) and heat-run over 5 minutes
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Auto adjustment Map(RS-232C)
RS-232C COMMAND
[ CMD ID DATA ]
[ CMD ID DATA ]
Wb 00 00 White Balance Start
Wb 00 ff White Balance End
Wb 00 ff White Balance End
* Caution
- Color Temperature : COOL, Medium, Warm.
- One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
- One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range
of Module)
* Manual W/B process using adjusts Remote control.
(1) After enter Service Mode by pushing “ADJ” key,
(2) Enter White Balance by pushing “
(1) After enter Service Mode by pushing “ADJ” key,
(2) Enter White Balance by pushing “
G
” key at “. White
Balance”
(3) Stick the sensor to the center of the screen and select
each items(Red/Green/Blue Gain) using
D
/
E
(CH +/-) key
on R/C.
(4) Adjust R/G/B Gain using
F
/
G
(VOL +/-) key on R/C.
(5) Adjust three modes all(Cool/Medium/Warm) : Fix the one
of R/G/B Gain and Change the others.
(6) When the adjustment is completed, Enter “COPY ALL”.
(7) Exit adjustment mode using EXIT key on R/C.
(7) Exit adjustment mode using EXIT key on R/C.
CSM
PLASMA
Cool
11000K
Medium
9300K
Warm
6500K
CSM
Color Coordinate
Temp
±Color Coordinate
x
y
Cool
0.276
0.283
11000K
0.002
Medium
0.285
0.293
9300K
0.002
Warm
0.313
0.329
6500K
0.002
RS-232C COMMAND
CENTER
[CMD ID DATA]
MIN
(DEFAULT)
MAX
Cool Mid
Warm
Cool
Mid
Warm
R Gain
jg
Ja
jd
00
192
192
192
192
G Gain
jh
Jb
je
00
192
192
192
192
B Gain
ji
Jc
jf
00
192
192
192
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
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