LG 26LG30D, Service Manual

Page: 13 / 32

4.9. Internal pressure
Confirm whether is normal or not when between power
board's ac block and GND is impacted on 1.5kV(dc) or
2.2kV(dc) for one second
5. Adjustment Command
5.1. I2C(100K BPS)
5.2. COMMUNICATION START
# Until ACK BIT goes LOW, Repeat it.
5.3. Command form
Command form use DDC2AB standard communication
protocol.
a. LEN : DATA BYTE number to send
b. CMD : Command language theat monitor executes.
c. VAL : FOS DATA
d. CS : Dada’s CHECKSUM that transmit
e. DELAY : 50Ms
f. A : Acknowledge
5.5. EEPROM DATA READ
(1) Signal TABLE
(2) Command Set
* Purpose : To read(84h) the appointment Address of
E2PROM by 128(80h)-byte
5.4. Adjustment Commands(LENGTH=84)
- 13 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
START 6E A STOP 50Ms
START 6E A 50 A A A A A A A 30 00 CS STOP LEN CMD VAL
Adjustment Contents CMD(hex) ADR VAL[HEX] Description
FACTORY ON E0 00 00 Factory mode on
FACTORY OFF E2 00 00 Factory mode off
EEPROM ALL INIT. E4 00 00 EEPROM All clear
EEPROM Read E7 00 00 EEPROM Read
EEPROM Write E8 00 data EEPROM Write by
some values
COLOR SAVE EB 00 00 Color Save
(R/G/B cutoff, Drive,
Contrast, Bright)
H POSITION 20 00 00 – 64 They have different
V POSITION 30 00 00 – 64 range each mode,
CLOCK 90 00 00 – 64 FOS Adjustment
PHASE 92 00 00 – 64
R DRIVE 16 00:cool 00 – 80 Drive adjustment
01:medium
02:warm
G DRIVE 18 00 :cool 00 – 80
01:medium
02:warm
B DRIVE 1A 00:cool 00 – 80
01:medium
02:warm
R CUTOFF 80 00 00 – 7F Offset adjustment
G CUTOFF 82 00 00 – 7F
B CUTOFF 84 00 00 – 7F
BRIGHT 10 00 00 – 3F Bright adjustment
CONTRAST 12 00 00 - 64 Luminance adjustment
AUTO_COLOR_ F1 00 02 Auto COLOR
ADJUST Adjustment
CHANGE_COLOR_ F2 00 0,1,2,3 0: Cool
TEMP 1: Medium
2: Warm
3: User
White Pattern F3 00 00,FF 00: White pattern off
FF: White pattern on
AUTO_ F4 00 0,10,20,30, 0 : TV
INPUTCHANGE 40,60,90 10 : DTV
20 : SCART1
30 : SCART2
40 : Component
60 : RGB
90 : HDMI
128 Bytes
Delay 100ms
EEPROM READ E7 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
Adjustment item CMD(hex) ADH(hex) ADL(hex) Details