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3.1. EDID Process
3.1.1. EDID download
1) Press "Power only" key of service remote controller.
2) Press the "ADJ" Key of service remote controller.
3) Enter EDID D/L mode by pushing "►" key at "EDID D/L".
4) Select "Start" menu to download EDID data.
5) Check the "OK" message.
6) Press EXIT key on R/C.
→ Caution: - Do not connect HDMI & D-sub Cable when
download EDID.
* Edid data and Model option download (RS232)
NO
Item
CMD
1
Enter
Download
A
download
'Mode In'
MODE
EDID data and
Download
A
Model option
download
3.1.2. EDID
- RGB : Check sum : C1
- HDMI : Checksum : 15 CE
Copyright ©
LG Electronics. Inc. All right reserved.
Only for training and service purposes
CMD
Data 0
2
A
0
0
When transfer the
'Mode In',
Carry the command.
E
00
10
Automatically download
(The use of a internal
Data)
3.2. Function Check
3.2.1. Check display and sound
*Check Input and Signal items. (cf. work instructions)
1) TV
2) AV (SCART/CVBS)
3) COMPONENT (480i)
4) HDMI(PC : 1366 x 768 @ 60Hz)
5) RGB(PC : 1366 x 768 @ 60Hz)
6) PC Audio In
* Display and Sound check is executed by Remote controller
* Some models do not support RGB & PC audio in. It depends
on model spec.
→ Caution : Not to push the INSTOP KEY after completion if
the function inspection.
3.3. CI+ key writing process.
(Device CN)
3.3.1. Download method
3.3.1.1. Communication Prot Connection
Connection : PCBA (USB Port) → USB to Serial Adapter (UC-
232A) → RS-232C cable → PC(RS-232C port)
→ Caution : LD31Q/LD31A chassis support only UC-232A
driver. ( only use this one. )
3.3.2. CI+ Key Download
1) Set CI+ Key path Directory at Start Mac & CI+ Download
Programme.
2) Set COM 1,2,3,4 / 115200(Baudrate) (1)/(2)
3) Click port connection button(1)
4) Start CI+ Key Download, Push the button(4)
5) Check OK or NG.
6) After completing download, CI + key values are increase by
one automatically. To write CI+ key next SET, click CI+ key
writing button(5) directly.
7) Check whether the key was downloaded or not at 'In Start'
menu. (Refer to below).
- 12 -
LGE Internal Use Only
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