Valcom V-1072A-ST, V-1072A-BRASS, V-1072B-BRASS, V-1072B-ST Service Manual

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: [phone] Phone: [phone]
FAX: [phone] FAX: [phone]

INSTALLATION INSTRUCTIONS FOR

FLUSH MOUNT DOOR SPEAKER

V-1072A-ST

V-1072A-BRASS

V-1072B-ST

V-1072B-BRASS

Issue 5 947073

V-1072A-BRASS,V-1072A-ST,V-1072B-BRASS,V-1072B-ST

These Talkback Door Speakers can be used with all Valcom Handsfree Talkback
Page Controls, Door Answering Units or any control with a 45 Ohm speaker
output. Four (4) screws are provided for mounting to a double-gang 4" x 4"
electrical box.

INSTALLATION

NOTES:
Connect using unshielded, twisted pair cable and limit runs to 800 feet
or less. Up to three (3) pair cable may be required when connecting to
the door speaker.

After making wire connections, cover uninsulated connections
with silicone tape, insulating putty or paint to prevent tracking.

1. Connect TIP and RING from the Valcom Page Control speaker output to
the speaker connections (marked TIP and RING) on the Door Speaker as
shown.

2. Connect CALL button on the Door Speaker to the customer provided
signal equipment as shown below. Switch is rated at 100mA maximum
current.

3. "B" Versions only - Connect the LED (lamp) on the Door Speaker to the
GND (+) and Switched Battery (-24VDC) terminals on the Valcom Page
Control as shown.

TROUBLESHOOTING CHART

PROBLEM CORRECTIVE ACTION

No sound in page
mode

Low volume in page
mode

Poor listening in
talkback mode

No LED indication

1. Check tip and ring for audio at speaker.

2. Check tip and ring at control unit.

1. Check volume controls at page control.

2. Check for open circuits in wiring.

1. Check talkback volume controls at page control.
Set control at minimum suitable listening level.

1. Check presence and polarity of LED input signal (V ­1072B models only).

CONNECTIONS

Dimensions/Weight

4.50"H x 4.50"W x 1.30"D (11.43cm x 11.43cm x 3.30cm)

•

0.5 lbs. (.23 kg)

•

TECHNICAL ASSISTANCE

When trouble is reported, verify there are no broken connections to the unit.
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 be calling from
the job site. Call [phone] and ask for Technical Assistance, or call (540) 767­1555 for Valcom 24-hour Faxback System 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:

Repair and Return Dept.
5614 Hollins Road
Roanoke, VA 24019-5056

Valcom, Inc.