LG GC-W061BTH.CTICJHK Service Manual page 23

MICOM FUNCTION AND CIRCUIT DIAGRAM
6-2-9. Communication Circuit between MAIN PCB and DISPLAY PCB
Communication circuit for an information exchange between MAIN MICOM and DISPLAY PCB in MAIN PCB
If there is an interruption in information exchange between MAIN MICOM and DISPLAY PCB in MAIN PCB for more than 30
seconds, it causes a communication malfunction.
MAIN PCB
MAIN MICOM
DC 12V
GND
Transmitting (Error)
Receiving (NOTCH)
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DISPLAYPCB
LCD Controlling
MICOM