Read LG 70LA8610-TA / 70LA860Y-TA (CHASSIS:LB34D) Service Manual online
- 16 -
(1) EDID
# HDMI 1(C/S : E8 71)
EDID Block 0, Bytes 0-127 [00H-7FH]
EDID Block 1, Bytes 128-255 [80H-FFH]
* Checksum(HDMI 1/2/3/4)
4.3. Camera Port Inspection
(1) Objective : To check PCBA’s CAMERA Port.
(2) How-it-works
1) Connect the PCBA like below Picture.
2) Send specific RS-232C Command for displaying
Camera Preview.
* CAMERA need to be status of Slide up.
(3) RS-232C Command
4.4. White Balance Adjustment
4.4.1. Overview
▪ W/B adj. Objective & How-it-works
(1) Objective: To reduce each Panel's W/B deviation
(2) 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.
(3) Adjustment condition : normal temperature
1) Surrounding Temperature : 25 °C ± 5 °C
2) Warm-up time: About 5 Min
3) Surrounding Humidity : 20 % ~ 80 %
4.4.2. Equipment
(1) Color Analyzer: CA-210 (LED Module : CH 14)
(2) Adjustment Computer(During auto adj., RS-232C protocol
is needed)
(3) Adjustment Remote control
(4) Video Signal Generator MSPG-925F 720p/216-Gray
(Model: 217, Pattern: 78)
-> Only when internal pattern is not available
•
Color Analyzer Matrix should be calibrated using CS-100.
4.4.3. Equipment connection MAP
4.4.4. Adj. Command (Protocol)
<Command Format>
- 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]
▪ RS-232C Command used during auto-adjustment.
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01
10 01 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1
20 0F 50 54 A1
8
00 31 40 45 40 61 40 71 40 81 80
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30
50 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 XX
40 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30
50 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 XX
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02 03 3A F1 4E 10 9F 04 13 05 14 03 02 12 20 21
10 22 15 01 29 3D 06 C0 15 07 50 09 57 07 78 03 0C
20 00 10 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10
30 06 10 16 10 28 10 E3 05 03 01 02 3A 80 18 71 38
40 2D 40 58 2C 45 00 40 84 63 00 00 1E 01 1D 80 18
50 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D
60 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 XX
20 00 10 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10
30 06 10 16 10 28 10 E3 05 03 01 02 3A 80 18 71 38
40 2D 40 58 2C 45 00 40 84 63 00 00 1E 01 1D 80 18
50 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D
60 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 XX
Input
FFh (Checksum)
HDMI1
E8
81
HDMI2
E8
71
HDMI3
E8
61
HDMI4
E8
51
RS-232C COMMAND
[CMD
ID
DATA]
Explantion
ai
00
23
Camera Function Start.
ai
00
24
Camera Function End.
Color Analyzer
Computer
Pattern Generator
RS-232C
RS-232C
RS-232C
Probe
Signal Source
* If TV internal pattern is used, not needed
START 6E A 50 A LEN A 03 A CMD
A
00
A VAL A
CS STOP
RS-232C COMMAND
[CMD
ID
DATA]
Explantion
wb
00
00
Begin White Balance adjustment
wb
00
10
Gain adjustment(internal white pattern)
wb
00
1f
Gain adjustment completed
wb
00
20
Offset adjustment(internal white pattern)
wb
00
2f
Offset adjustment completed
wb
00
ff
End White Balance adjustment
(internal pattern disappears )
Click on the first or last page to see other 70LA8610-TA / 70LA860Y-TA (CHASSIS:LB34D) service manuals if exist.