LG 42LE8500, Service Manual

Page: 13 / 40

- 13 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4.6. Option selection per country
(1) Overview
- Option selection is only done for models in Non-EU
- Applied model: LD03D/03E Chassis applied EU model
(2) Method
1) Press ADJ key on the Adj. R/C, then select Country
Group Menu
2) Depending on destination, select Country Group Code
04 or Country Group EU then on the lower Country
option, select US, CA, MX. Selection is done using +, -
or
GF
KEY.
4.7. Tool Option selection
- Method : Press Adj. key on the Adj. R/C, then select Tool
option.
4.8. 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.
After final inspection, Always turn on the Mechanical S/W.
5. GND and Internal Pressure check
5.1. Method
1) GND & Internal Pressure auto-check preparation
- Check that Power Cord is fully inserted to the SET.
(If loose, re-insert)
2) Perform GND & Internal Pressure 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.
5.2. Checkpoint
• TEST voltage
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
• TEST time: 1 second
• TEST POINT
- GND TEST = POWER CORD GND & SIGNAL CABLE
METAL GND
- Internal Pressure TEST = POWER CORD GND & LIVE &
NEUTRAL
• LEAKAGE CURRENT: At 0.5mArms
6. Audio
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
7. USB S/W Download (option, 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 Low,
it didn’t work. But your downloaded version is High, USB
data is automatically detecting
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” button.
3. Punch in the number. (Each model has their number.)
MODEL Tool 1 Tool 2 Tool 3 Tool 4 Tool 5
42LE8*** 24896 31795 64572 22958 2067
No. Item Min. Typ. Max. Unit
1. Audio practical max 9.0 10.0 12.0 W EQ Off
Output, L/R AVL Off
(Distortion=10% 8.5 8.9 9.8 Vrms Clear Voice Off
max Output)
2. Speaker (8Ω 10.0 15.0 W EQ On
Impedance) AVL On
Clear Voice On