DOWNLOAD LG 42LW650G-ZC / 42LW650S-ZC / 42LW650T-ZC / 42LW650W-ZC / 42LW659S-ZC (CHASSIS:LD12C) Service Manual ↓ Size: 8.79 MB | Pages: 68 in PDF or view online for FREE

- 17 -

Step 1) Turn on TV
Step 2) Press EYE key of Adj. R/C
Step 3) Cover the Eye Q II sensor on the front of the using

your hand and wait for 6 seconds

Step 4) Confirm that R/G/B value is lower than 10 of the “Raw

Data (Sensor data, Back light)”. If after 6 seconds,
R/G/B value is not lower than 10, replace Eye Q II
sensor.

Step 5) Remove your hand from the Eye Q II sensor and wait

for 6 seconds.

Step 6) Confirm that “ok” pop up. If change is not seen,

replace Eye Q II sensor.

(1) Turn on TV.
(2) At  the Local Dimming mode, module Edge Backlight

moving Top to Bottom Back light of IOP module moving.

(3) Confirm the Local Dimming mode.
(4) Press “exit” key

- Equipment : RF Remote control for test, IR-KEY-Code

Remote control for test

- You must confirm the battery power of RF-Remote control

before test.(recommend that change the battery per every lot) 

- Sequence (test)

1) if you select the ‘start key(Mute)’ on the controller, you can

pairing with the TV SET.

2) You can check the cursor on the TV Screen, when select

the ‘OK’ key on the controller.

3) You must remove the pairing with the TV Set by select

‘Vol+(STOP)’ key on the controller.

(Pattern Generator MSHG-600, MSPG-6100 [Support HDMI 1.4])
* HDMI mode No. 872, pattern No. 83)
1) Please input 3D test pattern like below

2) When 3D OSD appear automatically, then select OK key.

3) Don’t wear a 3D Glasses, Check the picture like below.

(only for DVB-S/S2 model)
(1) Test method

1) Set TV in Adj. mode using POWER ON.
2) Connect cable between satellite ANT and test JIG.
3) Press Yellow key (ETC+SWAP) in Adj Remote control to

make LNB on.

4) check LED light ‘ON’ at 18V menu.
5) check LED light ‘ON’ at 22KHz tone menu.
6) Press Blue key (ETC+PIP INPUT) in Adj Remote control

to make LNB off.

7) Check LED light ‘OFF’ at 18 V menu.
8) Check LED light ‘OFF’ at 22 KHz tone menu.

(2) Test result

- After press LNB On key, ‘18 V LED’ and ‘22 KHz tone

LED’ should be ON. 

- After press LNB OFF key, ‘18 V LED’ and ‘22 KHz tone

LED’ should be OFF. 

- 18 -

(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. Remote Control, 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.

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

select Tool option.

After final inspection, press IN-STOP key of the Adj. R/C and
check that the unit goes to Stand-by mode.

- 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.

• 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 0.4 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) Push in the number. (Each model has their number.)

No.

Item

Min. Typ. Max. Unit

1.  Audio practical max

9

10

12

W

EQ Off

Output, L/R

AVL Off

(Distortion=10 %

0.5

Vrms Clear Voice Off

max Output)

2. Speaker 

(8 

Ω

9

10.0 12.0

W

EQ On

Impedance)

AVL On

Clear Voice On

- 19 -

- 20 -

A2

A21

AG1

A5

A10

300

200

LV

1

LV

2

120

510

51

1

810

900

910

800

530

540

521

400

710

700

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by       in the Schematic Diagram and EXPLODED VIEW. 
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. 
Do not modify the original design without permission of manufacturer.