Defect Of The Communication Between The Door Station And The Pbx - Panasonic VL-SVN511BX Service Manual

8.2.5.

Defect of the Communication between the Door Station and the PBX

Reference:
• (*1) How to Remove the Main Board, Mic Board, Speaker and LCD [No.3] (P.36).
• (*3) Operation Check of the Door Station (P.19).
• (*6) Operation Check of the Main Monitor Station (P.22).
29
VL-SVN511BX/VL-SVN511CX/VL-SVN511CX1