47LM8600, 47LM8650 (CHASSIS:LA23E) — LG TV Service Manual (repair manual). Page 11

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4. Manual Adjustment
4.1.  MAC Address,  ESN  Key  and  Widevine 
Key download 
4.1.1. Equipment & Condition
1) Play file: keydownload.exe
4.1.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
4.1.3. Download process
1) Select the download items.
2) Mode check: Online Only
3) Check the test process
-  US,  Canada  models:  DETECT  ->  MAC_WRITE  -> 
WIDEVINE_WRITE
-  Korea,  Mexico  models:  DETECT  ->  MAC_WRITE  -> 
WIDEVINE_WRITE
4) Play : START
5) Check of result: Ready, Test, OK or NG
6) Printer out (MAC Address Label)
4.1.4. Communication Port connection
1)  Connect:  PCBA  Jig  ->  RS-232C  Port  ==  PC  ->  RS-232C 
Port
4.1.5. Download
1)  US,  Canada,  Mexico  models  (12Y  LCD  TV  +  MAC  + 
Widevine + ESN Key)
2)  Korea,  Mexico  models  (11Y  LCD  TV  +  MAC  +  Widevine 
Only)
4.1.6. Inspection
- In INSTART menu, check these keys.
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