LG 37LH250H, Руководство по обслуживанию

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• HDMI II [C/S: 1DAA]
• RGB [C/S: 71FF]
6. Final Assembly adj.
6.1 White Balance adj.
6.1.1 Overview
•W/B adj.: Objective & How-it-works
- Objective: To reduce each Panel’s W/B deviation
- How-it-works : When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range.
In order to prevent saturation of Full Dynamic
range and data, one of R/G/B is fixed at 192,
and the other two is lowered to find the
desired value.
6.1.2 Equipment
1) Color Analyzer : CA-210 (NCG: CH 9 / WCG: CH12 /LED
Module:CH14)
2) Adj. Computer (During auto adj., RS-232C protocol is
needed)
3) Adj. R/C
4) Video Signal Generator MSPG-925F 720p/216Gray
(Model:217, Pattern:78)
-> Only when internal pattern is not available
•Color Analyzer Matrix should be calibrated using CS-1000
6.1.3 Equipment connection map
6.1.4 Adj. Command (Protocol)
•Protocol
<Command Format>
- LEN: Number of Data Byte to be send
- CMD: Command
- VAL: FOS Data
- CS: Checksum of sent Data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
•Adj. Map
- Applied model:
- 15 - LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
Color Analyzer
Computer
RS-232C
# Pattern Generator
* If TV internal pattern is used,not needed
Signal Source
Probe
RS-232C
RS-232C
START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS A STOP
RS-232C COMMAND
[CMD ID DATA] Explanation
Wb 00 00 Begin White Balance adjust.
Wb 00 10 Begin Gain adjust (internal white pattern)
Wb 00 1f End Gain adjust
Wb 00 20 Begin Offset adjust (internal white pattern)
Wb 00 2f End Offset adjust
Wb 00 ff End White Balance adjust(internal pattern
disappears )
Item Command
(lower case ASCII) Data Range
(Hex.) Default
(Decimal)
CMD1 CMD2 MIN MAX
R Gain j g 00 C0 TBD
G Gain j h 00 C0 TBD
B Gain j i 00 C0 TBD
R Cut TBD
G Cut TBD
Cool
B Cut TBD
R Gain j a 00 C0 TBD
G Gain j b 00 C0 TBD
B Gain j c 00 C0 TBD
R Cut TBD
G Cut TBD
Medium
B Cut TBD
R Gain j d 00 C0 TBD
G Gain j e 00 C0 TBD
B Gain j f 00 C0 TBD
R Cut TBD
Warm
G Cut TBD