Valcom V-420 Service Manual

V-420

DYNAMIC NOISE CANCELLING MICROPHONE

Issue 1

INTRODUCTION

These instructions contain the
specifications and information necessary
to install, operate and maintain the V­420 Dynamic Noise Cancelling
Microphone.

SPECIFICATIONS

Applications

• Valcom Paging Systems

Features

• Dynamic Element

• Soft Lip Guard

• Cycolac Housing

• Push to Talk Button

• Heavy Duty Four Conductor

Shielded Cable

• Low Impedance (Balanced)

Dimensions/Weight

• 3.94"H x 2.97"W x 2.63"D
(10.00cm H x 7.54cm W x 6.68cm D)

• 10 oz. (284 grams)

Specifications

• Element Dynamic

• Frequency Response 100 to 5KHz

• Output Impedance Lo Z 200 Ohms

• Output Level Lo Z -58dB

(0dB = 1 mw/10 microbars)

INSTALLATION

Figure 1 (on reverse) depicts the V-420
connected to the Valcom V-9939B
microphone adapter.

TECHNICAL ASSISTANCE

When trouble is reported, verify the unit
is turned on and there are no broken
connections leading to this unit.
Assistance in troubleshooting is
available from the factory. When
calling, have a VOM and a test set
available and call from the job site. Call
[phone] and ask for Technical
Support and press 1 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 947342

Valcom, Inc. warrants its products to be free from defects in materials and workmanship under conditions of normal use and service

VALCOM LIMITED WARRANTY

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

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

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.

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

be subject to additional charges for parts and labor).

Headquarters: In Canada

Valcom, Inc. CMX Corporation

5614 Hollins Road 35 Van Kirk Drive #11 and 12

Roanoke, VA 24019 Brampton, Ontario L7A 1A5

Phone: [phone] Phone: [phone]

FAX: [phone] FAX: [phone]

2 947342