32LT670H (CHASSIS:LA2AF) - LG TV Service Manual (repair manual). Page 12

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6.2. Option selection per country
6.2.1. Overview
America due to rating
(2)  Applied model: LA2AE/F Chassis is applied in USA 
6.2.2. Method
(1)  Press ADJ  key  on  the Adj.  R/C,  and  then  select  Country 
Group Menu
(2)  Depending  on  destination,  select  KR  or  US,  then  on  the 
lower Country option, select US, CA, MX.
     Selection is done using +, - KEY
6.2.3. Tool Option inspection
▪ Press Adj. key on the Adj. R/C, then select Tool option.
Model
Tool 1
Tool 2 Tool 3 Tool 4 Tool 5 COM-
MERCIAL 
OPTION
37LT670H-UA
16389
2338
9489 17324
36
1618
LGD
42LT670H-UA
16390
2338
9489 21420
36
1618
LGD
32LT670H-UA
16388
2321
9489 17324
36
1618
LGD
26LT670H-UA
16387
290
9489 17324
36
1618
LGD
6.2.4. Ship-out mode check (In-stop)
▪  After final inspection, press In-Stop key of the Adj. R/C and 
check that the unit goes to Stand-by mode
7. GND and HI-POT Test
7.1. GND & HI-POT auto-check preparation
(1)  Check  the  POWER  CABLE  and  SIGNAL  CABE  insertion 
condition
7.2. GND & HI-POT auto-check
(1)  Pallet moves in the station. (POWER CORD / AV CORD is 
tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) GND Test (Auto) 
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process (Hi-pot test).       
  (Remove A/V CORD from A/V JACK BOX) 
(5) HI-POT test (Auto)
 - If Test is failed, Buzzer operates.
 -  If Test is passed, GOOD Lamp on and move to next process 
automatically.
7.3. Checkpoint
(1) Test voltage
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
(2) TEST time: 1 second
(3) TEST POINT
- GND Test = POWER CORD GND and SIGNAL CABLE GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
8. AUDIO output check
8.1. Audio input condition
(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1KHz sine wave signal (0.4Vrms)
(3) RGB PC: 1KHz sine wave signal (0.7Vrms)
8.2. Specification
● Measurement condition:
(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1KHz sine wave signal 0.4Vrms
(3) RGB PC: 1KHz sine wave signal 0.7Vrms
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