Defect Of The Communication Between The Main Monitor Station And The Door Station - Panasonic VL-SV74BX Service Manual

9.2.5 Defect of the Communication Between the Main Monitor Station and the Door
Station
START
Advance preparation:
Connect a non-defective Door
Station to the Main Monitor Station.
Communicate between the Main
Monitor Station and the Door Station.
Can the video/voice
communication be made?
YES
END
Reference:
• Refer to Talk Signal in
• Refer to Image Signal in
• (*1) [10.1.3 How to Remove the Main Board, Speaker and LCD
NO
Talk Signal Path (Transmitting)
of Main Monitor Station
Talk Signal Path (Receiving)
of Main Monitor Station
Image Signal Path
of Main Monitor Station
Replace the Main board.(*1)
[9.3 Signal Route].
[9.3 Signal Route].
Are all parts on
OK?
YES
Are all parts on
OK?
YES
Are all parts on
OK?
YES
[No.3]].
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NO
Replace the fault parts.
NO
Replace the fault parts.
NO
Replace the fault parts.