LG 22LS5400/540T Service Manual page 11

3.4. CI+ key writing process. (Device CN)
(1) Press "Power on" button of a service R/C.(Baud rate :
115200 bps)
(2) Connect USB.
(3) Write CI+ Key through RS-232-C.
* Connect TV SET and PC which download keys Writing
program by USB-Cable
1) Start "CIKey.exe"Program and Click (3) Button to connect
TV and PC.
2) Click (5) to download CI+ Key.
3) When download succeed, you can see "OK" on Message
tab.
4) Check whether the key was downloaded or not at 'In
Start' menu. (Refer to below).
=> Check the Download to CI+ Key value in LG set.
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
3.4.1. Check the method of CI+ Key value
(1) Check the method on Instart menu
(2) Check the method of RS232C Command
1) Into the main ass'y mode(RS232: aa 00 00)
CMD 1
A
2) Check the key download for transmitted command
(RS232: ci 00 10)
CMD 1
C
3) Result value
- Normally status for download : OKx
- Abnormally status for download : NGx
3.4.2. Check the method of CI+ key value(RS232)
1) Into the main ass'y mode(RS232: aa 00 00)
CMD 1
A
2) Check the mothed of CI+ key by command
(RS232: ci 00 20)
CMD 1
C
3) Result value
i 01 OK 1d1852d21c1ed5dcx
- 11 -
CMD 2 Data 0
A 0
CMD 2 Data 0
I 1
CMD 2 Data 0
A 0
CMD 2 Data 0
I 2
CI+ Key Value
LGE Internal Use Only
0
0
0
0