5) The unit does not operate.

Is the AC220V

NO

(240V) at Trans input terminal?

 

 

YES

Is the AC12-18V at

NO

Trans (2nd)?

 

YES

Is the connector of

NO

Main/Display correct?

 

YES

Is the DC5V between PIN64

NO

and PIN 32 of MICOM?

 

YES

Replacement Main PCB ASM

1.Check the electric connections

2.Check the fuse of Main PCB ASM

Replacement Trans

Check the connector of

Main/Display

1.Replacement ICO3D

2.Replacement Main PCB ASM

6) Timer control does not operate. Replacement Micom

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LG Electronics LF300CP(LP-C303R20), LF480CE(LP-C483TA0) service manual Unit does not operate