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7. GND and HI-POT Test
7.1. Tool Option selection
▪ Method: Press Adj. key on the Adj. R/C, then select Tool
option.
7.1. 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.
7.2 GND and Hi-pot auto-check
7.2.1 Method
(1) GND & Hi-pot auto-check preparation
- Check that Power Cord is fully inserted to the SET. (If
loose, re-insert)
(2) Perform GND & Hi-pot auto-check
- Unit fully inserted Power cord, Antenna cable and A/V
arrive to the auto-check process.
- Connect D-terminal to AV JACK TESTER
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST
- If NG, Buzzer will sound to inform the operator.
- If OK, changeover to I/P check automatically.
(Remove CORD, A/V form AV JACK BOX)
- Perform I/P test
- If NG, Buzzer will sound to inform the operator.
- If OK, Good lamp will lit up and the stopper will allow the
pallet to move on to next process.
7.2.2. Checkpoint
▪ TEST voltage
- GND: 1.5 KV / min at 100 mA
- SIGNAL: 3 KV / min at 100 mA
▪ TEST time: 1 second
▪ TEST POINT
- GND TEST = POWER CORD GND & SIGNAL CABLE
METAL GND
- Hi-pot TEST = POWER CORD GND & LIVE & NEUTRAL
▪ LEAKAGE CURRENT: At 0.5 mArms
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
8. USB S/W Download(Service only)
(1) Put the USB Stick to the USB socket
(2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is
Lower, it didn't work.
But your downloaded version is Higher, USB data is
automatically detecting (Download Version High & Power
only mode, Set is automatically Download)
(3) Show the message "Copying files from memory"
(4) Updating is starting.
(5) Updating Completed, The TV will restart automatically.
(6) If your TV is turned on, check your updated version and
Tool option. (explain the Tool option, next stage)
* If downloading version is more high than your TV have,
TV can lost all channel data. In this case, you have to
channel recover. if all channel data is cleared, you didn't
have a DTV/ATV test on production line.
* After downloading, have to adjust Tool Option again.
(1) Push "IN-START" key in service remote control.
(2) Select "Tool Option 1" and push "OK" key.
(3) Punch in the number. (Each model has their number)
- 15 -
LGE Internal Use Only
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