Valcom v-762 Service Manual

TECHNICAL ASSISTANCE

When trouble is reported, verify there are no broken connections to the
unit and consult the Troubleshooting Chart. Assistance in troubleshooting
is available from the factory. When calling, you should have a Volt-Ohm
meter and a lineman’s test set available and call from the job site.
Call [phone] and press 1 for Technical Support or visit our
website at http://www.valcom.com.

Valcom equipment is not field repairable. 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

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

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

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 L7A 1A5
Phone: [phone] Phone: [phone]
FAX: [phone] FAX: [phone]

VALCOM LIMITED WARRANTY

(a service charge plus parts and labor will be applied to units defaced or physically damaged);

repairs will be subject to additional charges for parts and labor).

INSTALLATION INSTRUCTIONS FOR

TALKBACK DESK SPEAKER

MODEL NO. V-762

Issue 9 947162

VALCOM TALKBACK DESK SPEAKER

Valcom Desk Speaker, V-762, is a 45 Ohm talkback speaker designed to
be used with Valcom “handsfree” talkback control units. The volume may
be adjusted with the knob on the front of the housing. The V-762 requires
no additional power.

Model V-762-BK Black
Model V-762-W White
Model V-762-GY Gray

WIRING

Make connections as shown below using standard, twisted telephone
cable. Limit each cable run to 800 foot maximum.

Typical Connection

DIMENSIONS/WEIGHT

Dimensions: 3.9”H x 5.1”W x 3.2”D
(9.9cm H x 12.9cm W x 8.1cm D)
Weight: 0.7 lbs. (0.32 kg)

Valcom

Handsfree

Tip - Green

Talkback

Ring - Red

Page
Control

Page

Out

T

R

V-762
with
ON/OFF
Volume
Control

MOUNTING

The V-762 can be used on a desk or wall mounted. The front
cover can be rotated to match positioning. Four rubber feet are
included with the V-762 to prevent movement on a desk surface.

Key hole patterns are located on the inside rear surface of the
enclosure for wall mounting. When wall mounting, remove the
front cover, mount and replace the front cover. Use a 11/32” drill
bit to drill the center hole and a 3/16” bit to drill either of the outer
holes.

OPERATION

Adjust the V-762 volume control at ½ rotation. Adjust
transmit/receive controls on the talkback control, then fine tune
the volume control on the speaker as needed.

NOTE: Adjustment of the volume control raises and lowers the
reply level when the page control is in the receive mode. The V­762 will not increase the transmit or receive level beyond the
setting on the page control unit.

TROUBLESHOOTING CHART

Problems Probable Causes and Corrections

No Sound 1. Check that volume control is turned up.

2. Using a lineman’s test set, check for the proper
audio level on the T & R leads, and if
necessary also at the source.

Low
Volume

1. Check that volume control is turned up.

2. Using a lineman’s test set, check for the proper
audio level on the T & R leads, and if
necessary also at the source.

Loud
Squeal
(feedback)

1. Lower volume of speaker.

2. Aim speaker in different direction.

3. Move speaker to location further from phone.

4. Install confidencer on phone in severe problem

area.