
Issue 4.0
CEECO
Communication Equipment & Engineering Company
PROPRIETARY
11
TROUBLESHOOTING CONTINUED…
PROBLEM
: PHONE DOESN'T DIAL PROGRAMMED NUMBER
POSSIBLE CAUSE
:
ATD-11 PRINTED CIRCUIT BOARD
PROGRAMMING SWITCH MATRIX SET WRONG
JUMPER IN WRONG POSITION
PROBLEM
: RINGER DOES NOT OPERATE
POSSIBLE CAUSE
:
RINGER
NETWORK
PROBLEM
: VOLUME CONTROL DOES NOT WORK
POSSIBLE CAUSE
:
VOLUME CONTROL PCB
NETWORK
WIRING
CONNECTION
DEFECTIVE
BUTTON