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

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