4
947023
FIGURE 2B
TECHNICAL ASSISTANCE
When trouble is reported, verify power is being
supplied to the unit, buzzer, ringing voltage or
contact closure appears at the unit and that
there are no broken connections at the screw
terminals. To effectively test the unit, a VOM
and a lineman's test set will be required. Use
the VOM to check for voltage from the power
supply and to verify that buzzer or ringing is
coming from the telephone system. The
lineman's test set can be used to check for the
warble tones on the T OUT and R OUT leads to
the speaker. If a spare unit is available,
continue to troubleshoot by substituting a spare
unit for the suspected unit.
Assistance in troubleshooting is available from
the factory. When calling, you should have a
VOM, a telephone test set and be calling from
the job site. Call (540) 563-2000 and press 1 for
Technical Support or visit our website at
http://www.valcom.com.
The V-9924C is not field repairable.
Valcom
equipment contains no user serviceable
parts inside
.
Valcom, Inc. maintains service
facilities in Roanoke, VA. Should repairs be
necessary, attach a tag to the unit
clearly stating
your company name, address, phone number,
contact person and the nature of the problem.
Send the unit to:
Valcom, Inc.
Repair and Return Dept.
5614 Hollins Road
Roanoke, VA 24019-5056
FIGURE 3 – SIMPLIFIED SCHEMATIC
