3
947114
TROUBLESHOOTING CHART
PROBLEMS
PROBABLE CAUSES AND CORRECTIONS
All call feature inoperative.
All call inhibit feature inoperative.
No all call output or low volume.
All call clicks or stays operated.
Verify connection to proper plugs on V-1134. If plugs are reversed, intercom will
operate, but all call function will not.
Plug cable from crossconnect block directly into V-136RTHF bypassing V-1134 and
check for proper operation of intercom. If V-136RTHF does not work, refer to
VSP-136RTHF instruction.
Verify straps are in place on crossconnect field as outlined previously.
Verify straps are in place on crossconnect field.
Verify that a 5K ohm resistive ground appears at the W/G (pin 28) wire of the "to 66
block" cable when two or more phones are off hook on the intercom. Refer to the
V-136RTHF instruction.
Adjust all call volume on unit to desired listening level.
Ground on a speaker wire. Remove all speaker cables at main frame. Reconnect
one at a time and test.
V-136 RTHF
V-1134
To Intercom
To 66 Bl
ock
Stati
on Numbers
Speaker Return
Split
Block
Speakers
V-136 RTHF
V-1134
To Intercom
To 66 Bl
ock
Stati
on Numbers
Speaker Return
Split
Block
Speakers
Stati
on Numbers
Excluded
Speakers
Connections required from V-136RTHF to V-1134 for all call to all speakers
Figure 1
Figure 2
Connections required from V-136RTHF to V-1134 for all call with excluded speakers
