Valcom vp-1024 Service Manual

VP-1024

24 VOLT POWER SUPPLY

INTRODUCTION

This instruction covers the specifications and
information necessary to install and maintain the
VP-1024, 24 volt power supply offered by Valcom,
Inc.

DESCRIPTION

The VP-1024 power supply consists of a transformer,
rectifier, and regulator which provides a dc output of
24 volts at 1.0 amperes. The power supply operates
on a nominal 117 volt, 60 Hz single phase input. The
VP-1024 is short circuit protected.

VSP-VP-1024

Issue 7

INSTALLATION

The power supply plugs into an ac receptacle. No
special tools are required for installation.

When using the VP-1024 with Valcom page control
units, a strap should be added from the local ground
to the "+" terminal of the power supply. Connections
to Valcom page control units are shown in Figure 1.

When installing Valcom one-way amplified horns,
connect the white and black wires of the horn to the
power supply "-" and "+" terminals respectively.

When installing Valcom one-way speakers, connect
the -24V and ground terminals of the speaker to the
power supply "-" and "+" terminals respectively.

NOMINAL SPECIFICATIONS

AC Input: 105-130VAC, 60Hz, .56 Amp
DC Output Voltage: 24V " 10%
Current: 1.0 amps
Dimensions: 6.5”H x 3.75”W x 2.25”D

(16.5cm H x 9.525cm W x 5.7cm D)

Weight: 1.9 lbs. (.86 kg)

TECHNICAL ASSISTANCE

When trouble is reported, verify that AC power is
being supplied to the unit. To test the power supply,
remove all output connections and measure the output
voltage with a meter. If no voltage is measured,
replace the unit.

Assistance in troubleshooting is available from the
factory. When calling you should have a VOM and a
test set available and be calling from the job site.
Call [phone] and ask for Technical Support,
or call [phone] for Valcom 24-hour
Automated 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

1 947124

VP-1024

66 Block

Power Supply

24V

NC NC NC - GND +

A Ground
A Battery
B Ground
B Battery

Equipment Ground

All Valcom equipment uses negative battery and positive ground

Figure 1 - Connections to Valcom Page Control Units

Input

117VAC

Regulator

and

Filter

24VDC Filtered

Talk Battery

Thermal Protector

Figure 2 - Simplified Schematic

VALCOM LIMITED WARRANTY

Valcom, Inc. warrants its products to be free from defects in materials and w orkmanship 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 unit s are unopened (A service

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 w ill be

This warranty is i n lieu of and excludes all other warranties, expressed or i mp lied, 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.

charge plus parts and labor will be applied to units defaced or phy sically damaged),

subject to additional charges for parts and labor).

Headquarters: In Canada

Valcom, Inc. CMX Corporation

1111 Industry Avenue 35 Van Kirk Drive #11 and 12

Roanoke, VA 24013 Brampton, Ontario L7A1A5
Phone: [phone] Phone: [phone]
FAX: [phone] FAX: [phone]

2 947124