3
TROUBLESHOOTING CHART
PROBLEMS
PROBABLE CAUSES AND CORRECTIONS
No Sound
Low Volume
Loud Squeal (feedback)
1. Check that volume control is turned up.
2. Check presence of -48VDC and GND.
3. Make sure the WHT wire is connected to -48VDC.
4. Using a lineman's test set, check for the proper audio level on the
T & R leads, and if necessary also at the source.
1. Check that volume control is turned up.
2. Check voltage at the horn when in use: -40 to -50 Volts required.
3. Using a lineman's test set, check for the proper audio level on the
T & R leads - it is possible that some sound will be heard with only
one side of Tip and Ring.
1. Lower volume of speaker.
2. Aim horn in different direction.
3. Move horn to location further from phone.
4. Install confidencer on phone in severe problem area.
VALCOM LIMITED WARRANTY
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 damages, 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:
In Canada
Valcom, Inc.
CMX Corporation
5614 Hollins Road
35 Van Kirk Drive #11 and 12
Roanoke, VA 24019-5056
Brampton, Ontario L7A1A5
Phone: (540) 563-2000
Phone: (905) 456-1072
FAX: (540) 362-9800
FAX: (905) 456-2269
