42CQ610H (CHASSIS:LA1EZ) - LG TV Service Manual (repair manual). Page 12

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10. LAN  Main board Check
10.1. Overview 
▪ It is LNET RF modem  & FTG card
10.2. Equipment 
(1) b_LAN Checker:  UTC-1000 (with Cable accessory)
(2) Computer(for test result monitoring)
(3) Connection JIG
10.3. Equipment connection map & b_LAN Check 
10.4. Check
10.4.1. Setting Procedure
10.4.1.1. 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
10.4.2. Working procedure 
10.4.2.1. 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
10.4.2.2. Power on JIG : Switch on front of the JIG 
10.4.2.3. Test Start
UTC-1000 TOP2 <- -> JIG 11pin Connection
10.4.2.4. 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 2. MAC Address on the pc.
11. 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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