LG GR-K192AF Service Manual - Page 22

Display Pcb, Main Pcb

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MICOM function and circuit description 5-2-10. Communication circuit between main PCB and display PCB This circuit provides communications between the MICOM on the main PCB and the MICOM of the display PCB. If there is no communication between these boards for 30 seconds, a communication error occurs. MAIN PCB DISPLAY PCB MAIN MICOM DC 12V GND Send (Error status) Receive (Notch status) MICOM for LED control PWB(PCB) ASSEMBLY, MAIN PWB(PCB) ASSEMBLY, DISPLAY - 22 -

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5-2-10. Communication circuit between main PCB and display PCB
This circuit provides communications between the MICOM on the main PCB and the MICOM of the display PCB.
If there is no communication between these boards for 30 seconds, a communication error occurs.
MICOM function and circuit description
- 22 -
DISPLAY PCB
MAIN PCB
MAIN MICOM
MICOM for
LED control
DC 12V
GND
Receive (Notch status)
Send (Error status)