Read LG 32LH255H (CHASSIS:LA96C) Service Manual online
• 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
•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.
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
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
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
•Protocol
<Command Format>
- LEN: Number of Data Byte to be send
- CMD: Command
- VAL: FOS Data
- CS: Checksum of sent Data
- CMD: Command
- VAL: FOS Data
- CS: Checksum of sent Data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
•Adj. Map
- Applied model:
- 14 -
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]
[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 )
disappears )
Item
Command
(lower case ASCII)
(lower case ASCII)
Data Range
(Hex.)
(Hex.)
Default
(Decimal)
(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
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