Valcom V-1220 사용자 설명서

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947221 

V-1220 - Ceiling Speaker:  To install speaker 
assembly, measure and cut an 8-1/2" hole in 
center of ceiling tile.  (If using a V-9914M-5 
bridge, V-9915M-5 backbox, or V-9916M bridge 
and backbox, follow instructions supplied with 
these assemblies). 

 

Connect station or other suitable wire to proper 
speaker terminals as labeled.  Mount speaker to 
ceiling tile.  Ideal mounting height should be 
between 7 and 23 feet. 
 
V-1222 - Wall Speaker:  Unscrew the speaker 
bracket and mount the bracket to the wall (ideal 
mounting height is 8 to 12 feet above floor level).  
Connect station or other suitable wire to proper 
speaker terminals as labeled.  Mount speaker 
on bracket.

When trouble is reported, verify there are no 
broken connections.  Assistance in 
troubleshooting is available from the factory.  
Call (540) 563-2000 and ask 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 company 
name, address, phone number, contact person, 
and the nature of the problem.  Send the unit to: 

 

 

TROUBLESHOOTING CHART 

1.  No audio from speaker. 

1.  Make certain volume control is turned up (clockwise). 
2.  Check presence of -24VDC and GND. 
3.  Using a lineman's test set, check for the proper audio level on 

the Tip and Ring leads, and if necessary also at the source. 

 

2.  Low volume from speaker. 

1.  Make certain volume control is turned up. 
2.  Check voltage at the speaker assembly when in use, -18 to 

-24VDC required. 

3.  Using a lineman's test set, check for the proper audio level on 

the Tip and Ring leads.  It is possible that some low level audio 
will be heard with only one side of Tip and Ring connected. 

 

3.  Loud squeal (feedback) 

1.  Turn down volume (counter clockwise) of speaker. 
2.  Increase the distance between the telephone and speaker. 
3.  Install a confidencer on the telephone in severe problem areas. 

 

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: 

Valcom, Inc. 

5614 Hollins Road 

Roanoke, VA 24019-5056 

Phone:  (540) 563-2000 

FAX:  (540) 362-9800