Dpm Operation Confirmation; Ddc Edid Write (Hdmi 256Byte); Edid Data - LG 32LN5400 Service Manual

4.2. DPM operation confirmation

(Only Apply for MNT Model)
Check if Power LED Color and Power Consumption operate
as standard.
■ Set Input to RGB and connect D-sub cable to set
■ Measurement Condition: (100~240V@ 50/60Hz)
■ Confirm DPM operation at the state of screen without Signal

4.3. DDC EDID Write (HDMI 256Byte)

■ Connect HDMI Signal Cable to HDMI Jack.
■ Write EDID DATA to EEPROM(24C02) by using DDC2B
protocol.
■ Check whether written EDID data is correct or not.
* For SVC Ass'y, EDID have to be downloaded.

4.4. EDID DATA

1) All Data : HEXA Value
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
- Auto Download
■ After enter Service Mode by pushing "ADJ" key,
■ Enter EDID D/L mode.
■ Enter "START" by pushing "OK" key.
※ Edid data and Model option download (RS232C)
NO Item CMD 1
Enter
Download
download A
'Mode In'
MODE
Edid data
and Model
Download A
option
download
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
CMD 2 Data 0
When transfer
the 'Mode In',
A 0 0
Carry the com-
mand
Automatically
download
E 00 10
(The use of a
internal Data)
※ Caution
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
=> Caution
- Never connect HDMI & D-sub Cable at the same time.
- Use the proper cables below for EDID Writing.
- Download HDMI1, HDMI2 separately because HDMI1 is
different from HDMI2.
For Analog EDID
D-sub to D-sub
No. Item
1 Manufacturer ID
2 Version
3 Revision
● EDID DATA
(1) HD 2D EDID Data
CheckSum
HDMI 1 A3/5B
HDMI 2 A3/4B
- 14 -
For HDMI EDID
DVI-D to HDMI or HDMI to HDMI
Condition Hex Data
GSM 1E6D
Digital : 1 01
Digital : 3 03
Physical Address (0x9E)
10
20
LGE Internal Use Only