Bell System BL106 Manuale Utente Scaricare il pdf (Pagina 42)

CS106/BL106 Combined Door Entry and Coded Access

42

Symptom

Possible Cause/Remedy

Constant tone/feedback

when in use.

 Volume adjustment required on the

Speech Unit.

 Speech Unit is not tight against the

panel grill.

 ‘O’ connection between Speech unit

and telephone is open circuit.

 Entrance panel and telephone are

too close together.

 The entrance panel is surrounded by

reflecting walls.

 Panel grill is blocked.

No speech when the phone

is buzzed

 Wiring fault on the speech signal

connections ‘R’ or ‘T’: ‘R’ carries the

phone microphone signal to the

speech unit; ‘T’ carries the Speech

unit microphone to the phone.

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 48

Commenti su questo manuale

Nessun commento