LG 32LT670H-UA Service Manual page 12

6.2. Option selection per country
6.2.1. Overview
(1) Option selection is only done for models in Non-USA North
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
37LT670H-UA 16389 2338
42LT670H-UA 16390 2338
32LT670H-UA 16388 2321
26LT670H-UA 16387 290
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
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Tool 3 Tool 4 Tool 5 COM-
MERCIAL
OPTION
9489 17324 36 1618
9489 21420 36 1618
9489 17324 36 1618
9489 17324 36 1618
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
LGD
● Measurement condition:
LGD
(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
LGD
(2) CVBS, Component: 1KHz sine wave signal 0.4Vrms
LGD
(3) RGB PC: 1KHz sine wave signal 0.7Vrms
- 12 -
LGE Internal Use Only