LG 32LV5500 EDGE LED LCD TV - POWER and AUDIO ERROR TROUBLESHOOTING

Power Error_Function error_Audio error_ Troubleshooting.  LG 32LV5500 North/Latin America - Europe/Africa - Asia/Oceania.  LG 32LV5500 LED LCD TV

POWER ERROR_NO-POWER

* Check power input voltage and ST-BY 5V

For ’10 models, there is no voltage out for st-by purpose.  
When st-by, only 3.5V is normally on.

Checking method when power is ON

Power error_Off when on, off whiling viewing.  POWER OFF MODE checking method.

* Press the IN-START button of the remote controller for adjustment 
* Check the entry into adjustment item.
Audio error_No audio/Normal video

Voltage and speaker checking method when there is no audio.

* Check the contact condition of or 24V connector of Main Board.

* Measure the 24V input voltage supplied from Power Board.  (If there is no input voltage, remove and check the connector)

*Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch the GND and output terminal, the speaker is normal.

Function error_ No response in remote controller, key error.

Remote controller operation checking method

* Check IR cable condition between IR & Main board.

* Check the st-by 3.3V on the terminal 6.

When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog Tester needle moves slowly and defective when it does not move at all.

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