DOWNLOAD LG 55LV5300 (CHASSIS:LA01U) Service Manual ↓ Size: 7.08 MB | Pages: 51 in PDF or view online for FREE

- 13 -

6.1.1. GND & HI-POT auto-check preparation  

(1) Check the POWER CABLE and SIGNAL CABE

insertion condition 

6.1.2. 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. 

• 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

NEUTRAL

• LEAKAGE CURRENT: At 0.5mArms

Step 1) Turn on the TV. 
Step 2) Press EYE button in adjust remote control. 
Step 3) Stay 6 seconds with Eye Q sensor hidden located on

the front of the set. 

Step 4) Check the “Sensor Data” on the screen and check

whether the value is lower thanafter 6 seconds, the
value does not go below 10, Eye Q sensor is not
working properly. Then, change the sensor. 

Step 5) Remove hand from the Eye Q II sensor and stay for 6

seconds. 

Step 6) Check whether the “Back Light (xxx)” value has risen

on the screen. If after 6 seconds and the value still
does not go high, the eye Q II sensor is not working
properly. Replace the sensor. 

 

<Step1>

<Step2>

<Step3>

<Step4>

<Step5>

- 14 -

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 controller. 
2. Select "Tool Option 1" and Push “OK” button. 
3. Punch in the number. (Each model has their number.) 

- 15 -

300

500

120

200

LV1

LV2

840

820

820

830

530

540

850

800

A2

A21

A9

A10

810

400

710

910

900

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.

541