LG 47LB5610 - LG47LB 5610-CD - North/Latin
America, Europe/Africa, Asia/Oceania
Troubleshooting - No power, No
audio - Normal video, Remote controller key error, Audio Amplifier Circuit diagram
No power
ST-BY condition: RedFront LED control: Menu => Option => Standby Light => On/Off
Check power input voltage and ST-BY 5V
Checking
method when power is ON
Off
when on, off while viewing
You
should have the “LG Adjust Remote Control” to proceed. The ‘In-Start’ button is not present at the
user remote control. The adjust remote
control can be bought from the authorized service center for LG.
Press
the "IN-START" button of the remote controller for adjustment.
Check
the entry into adjustment item 3
Adjust (Service) remote control
No
audio/Normal video
Checking
method in menu when there is no audio
Press
the MENU button on the remote controller.
Select
the AUDIO function of the Menu
Select
TV Speaker Check.
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.
Power Amplifier section circuit diagram
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 4.
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.
Click on the pictures to zoom in
