Valcom v-400 Service Manual
DYNAMIC DESK PAGING MICROPHONE
INTRODUCTION
These instructions contain the specifications and
information necessary to install, operate and
maintain the V-400 Dynamic Desk Paging
Microphone.
SPECIFICATIONS
Applications
• Valcom Paging Systems
Issue 7
V-400
Features
• Dynamic element
• Omnidirectional pickup pattern
• Cycolac housing with die cast base
• Push to Talk push bar with lock
• Heavy duty four conductor shielded cable
• Low impedance (balanced)
Dimensions/Weight
• 9.4"H x 4.0"W x 6.0"D
(23.9cm H x 10.2cm W x 15.2cm D)
• 1.4 lbs. (0.64 kg)
Specifications
• Element Dynamic
• Pattern Omnidirectional
• Freq. Response 50 to 12KHz
• Output Impedance Lo Z, 400 Ohms
• Output Level Lo Z, -58dB
(0dB = 1 mw/10 microbars)
-152dB EIA
INSTALLATION
Figure 1 (on reverse) depicts the V-400
connected to the Valcom V-9939A 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 (540) 563-2000 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
1 947340
k
V-400
V-9939B TERMINAL LAYOUT
*
PWR MC HZ B S RING
SHIELD
PWR LZ1 SW GND M TIP
LZ2
GREEN
WHITE
RED (+)
BLACK (-)
Strap shield to positive power lead.
*
FIGURE 1 - CONNECTING ARRANGEMENT
Microphone Base
Bottom View
Lift Switch
High Z
Lift Switch
Enabled
Disabled
Output
Low Z
Output
Push-to-Tal
Switch
FIGURE 2 – SWITCH FUNCTIONS
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
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 24019-5056 Brampton, Ontario L7A 1A5
Phone: (540) 563-2000 Phone: (905) 456-1072
FAX: (540) 362-9800 FAX: (905) 456-2269
2 947340
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