LG 65UX970H Service Manual page 21

5.4.3. Equipment connection MAP
Probe
RS -232C
* If TV internal pattern is used, not needed
5.4.4. Adj. Command (Protocol)
<Command Format>
START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS A STOP
- LEN: Number of Data Byte to be sent
- CMD : Command
- VAL : FOS Data value
- CS : Checksum of sent data
- A : Acknowledge
(Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
(1) RS-232C Command used during auto-adj.
RS-232C COMMAND
CMD DATA ID
wb 00 00
wb 00 10
wb 00 1f
wb 00 20
wb 00 2f
wb 00 ff
Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f -> Gain adj. complete
* (wb 00 20(start), wb 00 2f(endc)) -> Off-set adj.
wb 00 ff -> End white balance auto adj.
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Only for training and service purposes
Co lo r Analyzer
RS -232C
Co m p ut er
RS -232C
Pat t ern Generat o r
Signal Source
Explanation
Begin White Balance adj.
Gain adj.(internal white pattern)
Gain adj. completed
Offset adj.(internal white pattern)
Offset adj. completed
End White Balance adj.
(internal pattern disappears )
(2) Adjustment Map
Applied Model : ALL MODELS
Adj. Command
item (lower caseASCII)
CMD1
Cool R Gain
G Gain
B Gain
R Cut
G Cut
B Cut
Medium R Gain
G Gain
B Gain
R Cut
G Cut
B Cut
Warm R Gain
G Gain
B Gain
R Cut
G Cut
5.4.5. Adjustment method
5.4.5.1. Auto WB calibration
(1) Set TV in adj. mode using POWER ONNY key
(2) Zero calibrate probe then place it on the center of the
Display
(3) Connect Cable (RS-232C to USB)
(4) Select mode in adj. Program and begin adj.
(5) When adj. is complete (OK Sign), check adj. status pre
mode(Warm, Medium, Cool)
(6) Remove probe and RS-232C to USB cable to complete adj.
▪ W/B Adj. must begin as start command "wb 00 00" , and
finish as end command "wb 00 ff", and Adj. offset if need
- 21 -
Data Range
(Hex.)
CMD2 MIN MAX
j g 00 C0
j h 00 C0
j i 00 C0
j a 00 C0
j b 00 C0
j c 00 C0
j d 00 C0
j e 00 C0
j f 00 C0
LGE Internal Use Only
Default
(Decimal)
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD