Valcom V-762 Installation Instructions page 2

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
Model V-762-W
Model V-762-GY
WIRING
Make connections as shown below using standard, twisted telephone
cable. Limit each cable run to 800 foot maximum.
Valcom
Handsfree
Page
Talkback
Out
Page
Control
Typical Connection
DIMENSIONS/WEIGHT
Dimensions:
Weight:
MOUNTING
Black
White
Gray
V-762
T
with
Tip - Green
ON/OFF
Ring - Red
Volume
R
Control
3.9"H x 5.1"W x 3.2"D
(9.9cm H x 12.9cm W x 8.1cm D)
0.7 lbs. (0.32 kg)
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 V-
762 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 1. Check that volume control is turned up.
Volume 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 1. Lower volume of speaker.
Squeal 2. Aim speaker in different direction.
(feedback) 3. Move speaker to location further from phone.
4. Install confidencer on phone in severe problem
area.