LG 32LN520B (CHASSIS:LT36B) Service Manual ▷ View online
Standard Repair Process Detail Technical Manual
Checking method when power is ON
B. Power error _No power
A13
Established
date
Revised
date
Error
symptom
Content
LCD TV
Check “power on(Pin 1)” pin is high(about 3.3V)
2012. 11 .17
Entry method
1. Press the IN-START button of the remote
controller for adjustment
2. Check the entry into adjustment item 3
Standard Repair Process Detail Technical Manual
POWER OFF MODE checking method
B. Power error
_Off when on, off whiling viewing
<ALL MODELS>
A14
Established
date
Revised
date
Error
symptom
Content
LCD TV
2012. 11 .17
Checking method
1. Press the MENU button on the remote controller
2. Select the AUDIO function of the Menu
3. Select TV Speaker from Off to On
Standard Repair Process Detail Technical Manual
Checking method in menu when there is no audio
C. Audio error_No audio/Normal video
<LA58xx>
A15
Established
date
Revised
date
Error
symptom
Content
LCD TV
2012. 01 .14
Checking order when there is no audio
①
Check the contact condition of or 24V connector of Main Board
②
Measure the 24V input voltage supplied from Power Board
(If there is no input voltage, remove and check the connector)
③
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.
Standard Repair Process Detail Technical Manual
Voltage and speaker checking method
when there is no audio
C. Audio error_No audio/Normal video
<ALL MODELS>
A16
Established
date
Revised
date
Error
symptom
Content
LCD TV
①
②
③
②
2012. 11 .17
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