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Table 1 - Troubleshooting Chart

 

 
 

Symptom

 

 
 

Solution

 

 
1.  No output 
 
 
 
 
 
2.  No output when using Input 1 
 
 
3.  No output when using Input 2 
 
 
4.  No tone signaling 

 
A.  Verify -24VDC present on pins 29 and 30.  Power reversal 
LED 
      should not be on. 
B.  Verify music present on pins 4 and 19. 
C.  Verify proper polarity on power leads to speakers. 
D.  Verify volume control settings. 
 
A.  Test unit by placing telephone test set on pins 1 and 16, going 
off 
      hook and paging. 
 
A.  Verify ground is present on pin 3 when accessing page. 
B.  Verify audio is present on pins 2 and 17 when paging. 
 
A.  Verify V-9942 plugged in correctly. 
B.  If V-9937 is not working correctly in all other respects, then 
start 
      at troubleshooting chart Step 1. 
C.  Verify connections on pins 11 and 26 and/or 12 and 27.  Test 
by 
      momentarily shorting these pairs and listening for tones at 
      speakers. 
 

 
 
 
 

 

                                                                     

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: 

Valcom, Inc. 

 

5614 Hollins Road 

Roanoke, VA 24019-5056 

Phone:  (540) 563-2000 

FAX:  (540) 362-9800 

 

 

 

 
 

Summary of Contents for V-9937

Page 1: ...ain control Pop suppression Override capability using C O line position or PABX loop trunk port Low level input for background music typically 17dBm Automatic background music cutoff when the page por...

Page 2: ...V 9937 Each instruction is preceded by a line Place a check on the appropriate line as the instruction is completed The instructions also include tests along the way to verify connections have been m...

Page 3: ...ng Remove the metal mounting plate from the rear of the V 9937 enclosure Using two 6 inch wood screws mount the plate in a vacant space on the backboard with the telephone system common equipment Both...

Page 4: ...ECTING BLOCK POINTS Wiring Arrangements 1 and 2 Refer to Figure 2 for location and numbering of connection block and Figure 3 for connecting block pin outs ___ 1 Unplug power supply ___ 2 Connect 24VD...

Page 5: ...ack lead of horns NOTE Set speaker volume controls at approximately 1 2 volume during installation Volume Adjustment and Test Refer to Figure 4 for location of volume controls Test the system and adju...

Page 6: ...nd pop suppression circuits Accessing this port will override inputs 2 and 3 Input 2 is transformer coupled to the V 9937 Ground must be applied to pin 3 for this input to operate provided from pin 18...

Page 7: ...ch 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 orig...

Page 8: ...NOT MARKED OPTIONAL MUST BE COMPLETED V 9937 CONNECTING BLOCK FIGURE 5 WIRING CONNECTIONS FOR ARRANGEMENT 1 PAGE ONLY PAGE PLUS MUSIC 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 30 29 28 27 26 25 24 23 22 21...

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