Lg Electronics 60LN549E-ZE 사용자 설명서

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LGE Internal Use Only

Copyright  © 

  LG Electronics. Inc. All rights reserved.

Only for training and service purposes

Make sure the Stand-by Voltage.

P401 3, 5pin : +3.5V_ST 

Make sure the Micom voltage.

L301 : +3.5V_ST 

Make sure the output of MSTAR 

LVDS.

Make sure the Multi Voltage.

P401 9, 10pin : 24V, 13~15pin : 12V

Make sure the CLK of X300

Is 10MHz.

Make sure the Inverter control

P401 2pin : High

Exchange the LCD Module.

Make sure the Output Voltage of IC 

402/3/7.

IC402 : 2.5V, IC403: 1.1V, IC407 : 

1.5V, Q403 : 3.3V

Push Micom Reset(SW300) and 

make sure the PWR_ON

P401 1pin : 3.3V

Make sure the voltage of LVDS 

Power.

Q409 : 12V

Make sure the Power

Connector.

Exchange the L301.

Exchange the Mstar(IC101) 

or Main board.

Exchange the circuit 

board.

Exchange the X300.

Exchange the circuit or 

check the LCD module.

Exchange the 

IC402/3/7, Q403.

Re-download of 

Firmware.

Exchange the Q409.

Make sure the disconnection of 

Main board 3.5V circuit.

Exchange the Mstar(IC101)

Or Main board

Exchange the 

Circuit board.

No

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No