50PT85-ZB (CHASSIS:PD74A) - LG TV Service Manual (repair manual). Page 7

Read LG 50PT85-ZB (CHASSIS:PD74A) Service Manual online

- 7 -
6. EDID (The Extended Display
Identification Data)/ DDC (Display
Data Channel) download
* Caution
(1) Use the proper signal cable for EDID Download.
- Analog EDID : Pin3 exists.
- Digital EDID : Pin3 exists.
(2) Never connect HDMI & DVI-D & DVI-A Cable at the same
time.
(3) Use the proper cables below for EDID Writing.
6-1. EDID Data
6-2. Setting of device
6-3. Preparation for Adjustment
1) As above Fig. 2, Connect the Set, EDID Download Jig, PC
& Cable.
2)  Turn  on  the  PC  &  EDID  Download  Jig.  And  Execute  the
S/W : EDID TESTER Ver,2.5.
3) Set up S/W option.
Repeat Number : 5
Device Address : A0
PageByte : 8
4) Power on the Set.
6-4. Sequence of Adjustment
- EDID Download
1) Init the data.
2) Load the EDID data.(Open File).
[Analog file] (for RGB)
[Digital file]  (for HDMI)
3) Set the S/W as below.
4) Push the “Write Data & Verify”button. And confirm “Yes”.
5) If the writing is finished, you will see the “OK” message.
6)  If  TV  has  two  HDMI,  you  must  download  two  times  for
each HDMI.
(Fig. 2) Connection Diagram of DDC download
Open File
Open File
Item
Manufacturer ID
Version
Revision
Condition
GSM
Digital : 1
Digital : 3
Hex Data
1E6D
01
03
For RGB EDID
D-sub to D-sub
For HDMI EDID
DVI-D to HDMI or HDMI to HDMI
Page of 32
Display

Click on the first or last page to see other 50PT85-ZB (CHASSIS:PD74A) service manuals if exist.