Bell 300 Series User Manual

SECTIONC38.549
TABLEA (Cont)
Trouble ProbableCauses CorrectiveMeasures
Bell taps during dial- Incorrect wiring Check mounting cord and ringer connec-
ing, operating switch, Bias spring tension too low tions.
or when bridged
party is called. Move spring to higher tension notch. If
ringer still cross-rings, replace ringer. Do
not adjust bias spring.
Open in handset cord or at dial Replace cord or dial.
pulse contacts
Bell keeps ringing
when handset is Open induction coil or set wiring Replace coil.
removed.
Line contacts on switch do not Clean contacts and check alignment.
close
Open handset cord or receiver Replace handset cord or receiver unit.
unit
Dial "off normal shunt" contacts Replace dial.
closed
Bell rings, no one on
line. Open induction coil or transmis- Replace parts.
sion capacitor
Switch receiver contacts do not Check contacts.
open
Open mounting or handset cords Replace cord.
Defective receiver unit Replace unit.
No dial tone, set Dial pulse contacts open or "off Replace dial.
seems dead. normal shunt" contacts closed
Open induction coil Replace coil.
Switch contacts do not operate Clean and adjust contacts.
Dial pulse contacts do not open Replace dial.
Dial tone cannot be
broken. Line reversed (tip party in No. 1 Reverse line.
XBR office)
Loud clicks occur Dial "off normal shunt" contacts Replace dial.
during dialing, do not close
Open or shorted receiver unit or Replace defective parts.
handset cord
Calling party cannot Dial "off normal shunt" contacts Replace dial
hear.
closed
Open in induction coil Replace induction coil.
Switch receiver contacts do not Clean and adjust contacts.
Called party cannot open
hear. Defective transmitter or handset Replace transmitter or handset cord.
cord open
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Bell 300 Series Specifications

General

Dial	Rotary
Era	Mid-20th Century
Caller ID	No
Call Waiting	No
Redial	No
Volume Control	No
Phonebook	No
Display	No
Type	Desk phone
Design	Classic
Material	Plastic
Power Source	Telephone line