an ohmmeter is used to check for continuity between shields, the connection harness must be removed
from field wire prior to taking the reading.
IR3xx-series Patient Station is not placing calls
l Swap test the associated call cord.
l Swap test the patient station with another “known-good” patient station.
l If the problem encompasses an entire port, see Comm. Fault Indication (patient station fault)
earlier in this chapter for port swapping information.
IR3xx-series Patient Station has a constant “Cord Out” message
l Verify that the call cord is properly inserted.
l Swap test the call cord with another “known-good” call cord.
l
Swap test the patient station with another “known-good” patient station.
IR310 Staff Station is placing “Routine Calls”
The IR310 station has a special “routine call” feature that is triggered by turning on dip switch 7. If this
feature is not desired, the dip switch must be turned off. NOTE: This will effectively change the sta-
tion’s type (triggering a station type fault), so the Detect System Stations command must be run from the
System Functions menu to complete the change process.
IR315 Duty Station or LI386 Dome/Zone Lamp is not annunciating calls. This is a software-controlled
feature. The duty station or dome zone lamp should have the zones assigned that are to be annunciated
by the device.
Lamp Fault Indication
l Determine the type of lamp being used with the station reporting the lamp fault (supervised or
unsupervised).
l If the lamp is supervised, check the four bulbs for open filaments. This can also be verified by
swap testing the bulbs with “known-good” bulbs. If all four bulbs are intact, verify the con-
nection to the Lamp Fault Input (blue wire on the 15-pin peripheral connector on the associated
patient station). During normal operation, the supervised dome lamp provides a steady +24 VDC
input to prevent the lamp fault from being triggered. This ceases when a filament opens.
l If the lamp is unsupervised, check the connection from the Lamp Fault Input to the +24 VDC
common wire. If this connection is present, verify its continuity. If the voltage is present, swap
test the patient station with a “known-good” device.
LI380-series Lamp is not lighting
l For non-LEDversion lights, verify that the bulb filaments are not broken or open. This can also
be verified by swap testing the bulb in question with a “known-good” lamp bulb.
l If the bulbs are functional, verify the connections to the patient station. The dome lamp may also
be tested by directly connecting it to the patient station peripheral connector.
l The patient station may also be swap tested. Observe station circuit board for signs of high cur-
rent damage.
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TekTone Sound and Signal Mfg., Inc. All Rights Reserved
IL1057 Tek-CARE300III Installation Manual | 31
System Troubleshooting Guide
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