55LS675H (CHASSIS:LA2AG) - LG TV Service Manual (repair manual). Page 12

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13.  LAN  Main board Check
13.1. Overview 
It is LNET RF modem  & FTG card
13.2. Equipment 
(1) b_LAN Checker:  UTC-1000 (with Cable accessory)
(2) Computer(for test result monitoring)
(3) Connection JIG
13.3.  Equipment connection map  &  b_LAN 
Check
13.4. Check
13.4.1. Setting Procedure 
13.4.1.1. Setting JIG
(1)  Connect UTC-1000 Equipment to JIG device as a like left 
picture
   - Connection Line: 
     UTC-1000 TOP1<- ->Game port(RJ21)
                                     -> TV-LINK CFG (Phone Jack)
      UTC-1000 TOP2<- ->JIG 11pin Connection
      UTC-1000 RF1<- ->b_LAN RF IN
      UTC-1000 LAN<- ->PC LAN Port
13.4.1.2. Working procedure 
(1)  Connection
      UTC-1000 LAN <- -> PC LAN Port
      UTC-1000 TOP1 <- -> Game port(RJ21)
                                      -> TV-LINK CFG (Phone Jack)
      UTC-1000 RF1 <- -> b_LAN RF IN
(2) Power on JIG : Switch on front of the JIG
(3) Test Start
      UTC-1000 TOP2 <- -> JIG 11pin Connection
(4) Checking b-LAN MAC Address
Check whether it is same their address numbers or not 
between B-LAN Label and on the pc address numbers.
● Checking JIG contents
(1)  Check  whether  displaying  all  “Pass”  or  not  at  the  number 
3.4.6.7.9 contents of UTC-1000 on the PC
(2) Check  “Version 6.0” of the 1. b_LAN Application version
(3)  Check  whether  it  is  same  their  address  numbers  or  not 
between B-LAN Label and 
(4) MAC Address on the pc.
14. Serial number download
Connect  Bar  Code  scan  equipment  and TV  set  by  RS-232C 
cable
(1) E2PROM Data Write
(2) E2PROM Data Read
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