Read LG 50PA4500-UM / 50PA450C-UM (CHASSIS:PU23A) Service Manual online
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■ RS-232C Command (Commonly apply)
● “wb 00 00”: Start Auto-adjustment of white balance.
● “wb 00 10”: Start Gain Adjustment (Inner pattern)
● “jb 00 c0” :
● …
● “wb 00 1f”: End of Adjustment
* If it needs, offset adjustment (wb 00 20-start, wb 00 2f-
end)
● “wb 00 ff”: End of white balance adjustment (inner pattern
disappear)
■ Adjustment Mapping information
● When Color temperature (White balance) Adjustment
(Automatically)
- Press “Power only key” of service remocon and operate
automatically adjustment.
- Set BaudRate to 115200.
● You must start “wb 00 00” and finish it “wb 00 ff”.
● If it needs, then adjustment “Offset”.
■ White Balance Adjustment (Manual adjustment)
● Test Equipment: CA-210
- Using PDP color temperature, Color Analyzer (CA-210)
must use CH 10, which Matrix compensated (White, Red,
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one.
● Manual adjustment sequence is like bellowed one.
- Turn to “Ez-Adjust” mode with press ADJ button of service
remocon.
- Select “10.Test Pattern” with CH+/- button and press
enter. Then set will go on Heat-run mode. Over 30
minutes set let on Heat-run mode.
- Let CA-210 to zero calibration and must has gap more
10cm from center of PDP module when adjustment.
- Press “ADJ” button of service remocon and select
“7.White-Balance” in “Ez-Adjust” then press “►” button of
navigation key. (When press “►” button then set will go to
full white mode)
- Adjust at three mode (Cool, Medium, Warm)
- If “cool” mode
Let B-Gain to 192 and R, G, B-Cut to 64 and then control
R, G gain adjustment High Light adjustment.
- If “Medium” and “Warm” mode Let R-Gain to 192 and R,
G, B-Cut to 64 and then control G, B gain adjustment
High Light adjustment.
- All of the three mode
Let R-Gain to 192 and R, G, B-Cut to 64 and then control
G, B gain adjustment High Light adjustment.
- With volume button (+/-) you can adjust.
- After all adjustment finished, with Enter (■ key) turn to
Ez-Adjust mode. Then with ADJ button, exit from
adjustment mode
* Attachment: White Balance adjustment coordination and
color temperature.
● Using CS-1000 Equipment.
- COOL : T=11000K, ∆uv=0.000, x=0.276 y=0.283
- MEDIUM : T=9300K, ∆uv=0.000, x=0.285 y=0.293
- WARM : T=6500K, ∆uv=0.000, x=0.313 y=0.329
RS-232C
COMMAND
[CMD ID DATA]
M
I
N
CENTER
(DEFAULT)
M
A
X
Cool Mid Warm
Cool Mid Warm
R Gain
jg
Ja
jd
00
184 192
192
192
G Gain
jh
Jb
je
00
187 183
159
192
B Gain
ji
Jc
jf
00
192 161
95
192
R Cut
64
64
64
127
G Cut
64
64
64
127
B Cut
64
64
64
127
RS-232C COMMAND
[CMD ID DATA]
Meaning
wb
00
00
White Balance adjustment start.
wb
00
10
Start of adjust gain
(Inner white pattern)
(Inner white pattern)
wb
00
1f
End of gain adjust
wb
00
20
Start of offset adjust
(Inner white pattern)
(Inner white pattern)
wb
00
2f
End of offset adjust
wb
00
ff
End of White Balance adjust
(Inner pattern disappeared)
(Inner pattern disappeared)
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