Troubleshooting Chart - Valcom V-9923B User Manual

PROBLEMS
No dial tone.
No tone output.
Unit doesn't answer.
Unit cuts off on answer.
Valcom, Inc. warrants its products to be free from defects in materials and workmanship under conditions of normal use and service
for a period of one year from the date of shipment. The obligation under this warranty shall be limited to the replacement, repair or
refund of any such defective device within the warranty period, provided that:
1. inspection by Valcom, Inc. indicates the validity of the claim,
2. the defect is not the result of damage, misuse, or negligence after the original shipment,
3. the product has not been altered in any way or repaired by others and that factory sealed units are unopened
(A service charge plus parts and labor will be applied to units defaced or physically damaged),
4. freight charges for the return of products to Valcom are prepaid,
5. all units 'out of warranty' are subject to a service charge. The service charge will cover minor repairs
(Major repairs will be subject to additional charges for parts and labor).
This warranty is in lieu of and excludes all other warranties, expressed or implied, and in no event shall Valcom, Inc. be
liable for any anticipated profits, consequential damage, loss of time or other losses incurred by the buyer in connection
with the purchase, operation or use of the product.
This warranty specifically excludes damage incurred in shipment. In the event a product is received in damaged condition, the
carrier should be notified immediately. Claims for such damage should be filed with the carrier involved in accordance with the
F.O.B. point.
Headquarters:
Valcom, Inc.
5614 Hollins Road
Roanoke, VA 24019-5056
Phone: (540) 563-2000
FAX: (540) 362-9800
TABLE 3

TROUBLESHOOTING CHART

PROBABLE CAUSES AND SOLUTIONS
Verify power connections; check operation of unit by placing test telephone
across the T and R leads and going off hook. If dial tone present, check
wiring to key system or PABX. If no dial tone, check wiring of EP leads to
other units. Verify that all grounds are common. Verify polarity of power
connections. Replace unit.
Remove leads on the TT and RT leads on crossconnect block. Place call into
the unit and verify with a telephone across TT and RT leads that tones are
being broadcast. Listen to unit to hear relay operating during code.
Verify ringing voltage appearing across the TO and RO leads if using PABX
or that A lead is dropping below half of supply voltage if using key
telephone.
Reverse station leads on TO and RO.
VALCOM LIMITED WARRANTY
5
In Canada:
CMX Corporation
35 Van Kirk Drive #11 and 12
Brampton, Ontario L7A1A5
Phone: (905) 456-1072
FAX: (905) 456-2269
947923