Panasonic VL-V522LCE - Communication Defects: Extension Monitor & Door Station

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VL-SWD272BX/SWD272CX/SWD272CX1/SWD272AZ/VL-WD613CX/VL-WD613CX1
9.2.9. Defect of the Communication Between the Extention Monitor Station and the Door
Station
Reference:
• Refer to Talk Signal in Signal Route (P.49).
• Refer to Image Signal in Signal Route (P.49).
•(*1) How to Remove the Main Board, Speaker and LCD [No.3] (P.56).