CEECO HOB-331-D-M-IVC, Service Manual, Page: 10 / 16

Issue 4.0
CEECO
Communication Equipment & Engineering Company
PROPRIETARY
10
7.0 TESTING
7.1 Program the phone according to section 3.0
7.2 Lift the handset. Phone waits one and one half to four seconds (depending
on the position of J2 per Section 3.6). The programmed number is
automatically dialed.
7.3 The transmitter is muted while the phone is dialing.
7.4 Incoming calls are not recommended but if a call is placed to the phone
and the handset is lifted there is a one and one half to four second delay
(depending on the position of J2. Section 3.6), the programmed number is
dialed, and then a normal phone conversation can take place.
8.0 TROUBLESHOOTING
Always visually check the phone for loose or shorted wires, damaged terminals or
damaged parts.
PROBLEM : NO DIAL TONE
POSSIBLE CAUSE :
LINE CORD
CONNECTOR
RJ11C
CONNECTOR
NETWORK
HANDSET
ATD-11 PRINTED CIRCUIT BOARD
PROBLEM : DIAL TONE IS DISTORTED
POSSIBLE CAUSE :
NETWORK
HANDSET
PROBLEM : TRANSMITTER DOES NOT TURN ON
POSSIBLE CAUSE :
HANDSET
NETWORK