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LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
6. GND and HI-POT Testing
6.1. GND & HI-POT auto-check preparation
Check the connection between set and
power cord
(1) Check the POWER CABLE and SIGNAL CABE insertion
condition
6.2. 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
6.3. Check Point
(1) Test voltage
3 Poles : GND: 1.5KV/min at 100mA / SIGNAL: 3KV/min at
100mA
(2) TEST time: 1 second
(3) TEST POINT
3 Poles : GND Test = POWER CORD GND and SIGNAL
CABLE GND.
Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
7. USB DOWNLOAD (*.epk file download)
(1) Put the USB Stick to the USB socket
(2) Press Menu key, and move OPTION
(3)
(4) Press “FAV” Press 7 times.
(5) Select download file (epk file)
(6) After download is finished, remove the USB stick.
(7) Press “IN-START” key of ADJ remote control, check the
S/W version
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