47LD950C (CHASSIS:LA92Y) - LG TV Service Manual (repair manual). Page 14

* Detail EDID Options are below

ⓐ Product ID

ⓑ Serial No : Controlled on production line.

ⓒ Month, Year :

ex) Monthly : ‘02’ -> ‘02’

Year : ‘2009’ -> ‘13’

ⓓ Model Name(Hex):

ⓔ Checksum: Changeable by total EDID data.

ⓕ Vendor Specific(HDMI)

- When pressing IN-STOP key by SVC remocon, Red LED

are blinked alternatively. And then Automatically turn off.

(Must not AC power OFF during blinking)

Confirm whether is normal or not when between power
board’s ac block and GND is impacted on 1.5 kV(dc) or 2.2
kV(dc) for one second.

• Press “Power on” key of service remocon.

(Baud rate : 115200 bps)

• Connect RS232 Signal Cable to RS-232 Jack.
• Write Serial number by use RS-232.
• Must check the serial number at the Diagnostics of SET UP

menu. (Refer to below).

CMD : A0h
LENGTH : 85 h ~ 94h (1 byte ~ 16 byte)
ADH : EEPROM Sub Address high (00~1F)
ADL : EEPROM Sub Address low (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 +…+ Data_n
Delay : 20 ms

* Description

FOS Default write : <7mode data> write
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0,
Phase
Data write: Model name and Serial number write in
EEPROM.

A. Serial number D/L is using of scan equipment.
B. Setting of scan equipment operated by Manufacturing

Technology Group.

C. Serial number D/L must be conformed when it is produced

in production line, because serial number D/L is mandatory
by D-book 4.0.

- 14 -

Model Name

HEX

EDID Table

DDC Function

FHD Model

0001

01 00

Analog/Digital

MODEL

MODEL NAME(HEX)

47LD920 00 00 00 FC 00 34 47 4C 44 36 33 30 2D 5A 41 0A 20 20

INPUT

MODEL NAME(HEX)

HDMI1 67030C001000B82D

HDMI2 67030C002000B82D

HDMI3 67030C003000B82D

HDMI4

67030C004000B82D

No. Adjust 

mode 

CMD(hex)

LENGTH(hex) 

Description 

1 

EEPROM WRITE 

A0h 

84h+n 

n-bytes Write (n = 1~16)