42LV5500-TA, 42LV550Y (CHASSIS:LB12E) - LG TV Service Manual (repair manual). Page 14

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(1) Overview

- Option selection is only done for models in Non-AU/ -ID/ -

SG/ -MY/ -VN/ -IL/ -ZA/ -IR.

model.

(2) Method

1) Press ADJ key on the Adj. R/C, then select Country

Group Meun.

2) Depending on destination, select Country Group Code

12 or Country Group A-ASIA.

3) Press ADJ key on the Adj. R/C, then select Area Option. 
4) Depending on Area code number, select Default Lang.,

Wi-Fi Frequency, Lang Gr., Teletext Lang Gr., I II Save,
HDEV, MONO, Location.

- Method : Press Adj. key on the Adj. Remote Control, then

select Tool option.

After final inspection, press IN-STOP key of the Adjustment
remote control and check that the unit goes to Stand-by mode.

(1) Method

- Check that Power Cord is fully inserted to the SET.

(If loose, re-insert)

- 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.

(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

& NEUTRAL

• LEAKAGE CURRENT: At 0.5 mArms

Measurement condition:
1. RF input: Mono, 1 KHz sine wave signal, 100 % Modulation
2. CVBS, Component: 1 KHz sine wave signal 0.5 Vrms
3. RGB PC: 1 KHz sine wave signal 0.7 Vrms

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” key.
3) Punch in the number. (Each model has their number.)

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 (8 Ω

10.0

15.0

W

EQ On

Impedance)

AVL On

Clear Voice On

Module

Tool 1

Tool 2

Tool 3

Tool 4

Tool 5

Tool 6

Remark

LGD

32998

715

3327

17592

8789

662

STD B/L: 55

AUO

37094

715

3327

17592

8917

665