LG M2794D Service Manual page 15
Lcd monitor tv
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Also See for M2794D:
- Owner's manual (102 pages) ,
- Owner's manual (101 pages) ,
- Owner's manual (30 pages)
Table of Contents
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5. Adjustment Command
5.1 Adjustment Commands(LEMGTH=84)
No.
Adjustment Contents
CMD ADR
1
FACTORY ON
2
FACTORY OFF
3
EEPROM ALL INIT.
4
EEPROM Read
5
EEPROM Write
COLOR SAVE (R/G/B cutoff)
6
Drive, Contrast, Bright)
7
H
POSITION
8
V POSITION
9
CLOCK
10
PHASE
11
R DRIVE
12
G DRIVE
B
13
DRIVE
14
R CUTOFF
15
G CUTOFF
16
B CUTOFF
17
BRIGHT
19
CONTRAST
20
AUTO_COLOR_ ADJU ST
21
CHANGE_COLOR_TEMP
22
FACTORY_DEFAULT
AUTO_INPUTCHANGE
23
5.2 EEPROM DATA READ
5.2.1 Signal Table
START
6E
A
50
A
84
A
----------------------------------------------------------------------
START
6F
A
D1
A
5.2.2 Command Set
No.
contents
CMD A DH
Adjustment
1
EEPROM READ
E7
2
3
4
5
6
7
8
*use: To read the appointment Address of E
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
VAL
Description
Factory mode on
E0
00
00
E2
00
00
Factory mode off
E4
00
00
EEPROM All c lear
E7
00
00
EEPROM Read
E8
00
Data
EEPROM Write by so me values
00
00
Save
EB
Color
20
00
00~100
They have different range
30
00
00~100
mode, FOS Adjustment
00~100
90
00
92
00
00~100
16
00
00~FF
Drive adjustment
18
00
00~FF
1A
00
00~FF
80
00
00~7F
Offset adjustment
82
00
00~7F
84
00
00~7F
10
00
00~3F
Bright adjustment
Luminance adjustment
12
00
00~64
F1
00
02
Auto COLOR Adjustment
0: COOL
1: NORMAL
F2
00
0,1,2,3
2: WARM
3: USER
Factory mode off
F3
00
00
& II_SW is
"1"
& Input change to " TV"
0 : TV
1 : AV1
2 : AV2
3 : Component
F4
00
0,1,2,4
4 : RGB
5 : DVI
6 : HDMI
03
A
CMD
A
ADH
A
ADL
A
128 Bytes
ADL
Details
A0
0
0-Page
0~7F Read
80
0-Page 80~FF Read
A2
0
1-Page
0~7F Read
80
1-Page 80~FF Read
A4
0
2-Page
0~7F Read
80
2-Page 80~FF Read
A6
0
3-Page
0~7F Read
80
3-Page 80~FF Read
5.3 E 2 PROM Data Write
5.3.1 Signal Table
START
6E
Data_1
LEN : 84h + Byte
CMD : 8Eh
ADH : E 2 PROM Slave Address (A0, A2, A4, A8), Not 00h
ADL : E 2 PROM Sub Address ( 00~ FF)
Data : Write data
5.3.2 Command Set
No.
Adjustment contents
1
EEPROM WRITE
2
- use
• EDID write : 16-byte by 16-byte, 8 order (128-byte)
write(TO "00 – 7F" of "EEPROM Page A4")
• FOS
(HFh,HFl,VF,STD,HP,VP,Clk,ClkPh,PhFine) write
• Random Data write : write the appointment Address of
E2PROM
5.4 VRAM Read
• Send CMD(70h) to read Video RAM value from MICOM
And save its value to 128-Bytes Buffer(Common Buffer
for the use of EDID)
START
6E
A 50
• Delay 500ms ( Time to Wait and Read Video RAM from
MICOM)
• Be transmitted the contents of MICOM's 128-bytes
Buffer to PC.
(128th Data is the CheckSum of 127-bytes data : That's
OK if the value of adding 128-bytes Data is Zero)
START
STOP
CS
A
Dn
A
STOP
- 15 -
A
50
A
84+n
A
03
A
A
. . .
Data_n
A
(Reserved by Buffer to E 2 PROM )
CMD(hex)
E8
Default
write
A
84
A
03
A
70
A
6F
A
Data1
. . .
Data128
CMD
A
ADH
A
ADL A
CS
A
STOP
LEN
Details
94
16-Byte Write
84+n
n-byte Write
:
16-mode
data
00
A
00
A
CS
A
STOP
A CS
NA
STOP
LGE Internal Use Only
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