Page 570 - Med Plaza and Cancer Center

Troubleshooting Guide

Symptom Possible Cause Corrective Action
1) No visual indicators illuminated a. AC power is not turned on. a. Check AC power source.
on entire alarm panel b. Blown internal fuse. b. Replace fuse.
c. AC power wiring is not c. Check AC entrance wiring at power
connected. supply terminals. Verify two-pin
d. Three-wire power supply plastic connector is plugged into
harness is not connected power supply circuit board.
between power supply and d. Check connections on each end
annunciator board including orientation of cable
e. Faulty power supply connectors. Reconnect if
assembly. necessary.
e. Replace power supply assembly.

2) No visual indicators illuminated a. 20-wire ribbon cable(s) a. Reconnect ribbon cable(s).
on isolated module(s). Green between annunciator module b. All alarm panels have two 20-wire
annunciator module POWER and digital display or multi- ribbon cables (attached to
indicator is illuminated. signal modules not annunciator connectors “J1” and
connected. “J2”). Remove suspect cable (both
b. Faulty 20-wire ribbon cable. ends) and replace with other cable.
c. Faulty digital display or multi- If problem is corrected, replace
signal module. faulty cable.
d. Faulty annunciator module. c. If alarm panel contains another
working digital display or multi-
signal module, unplug ribbon cable
from working module and connect
to non-working module. If module
does not illuminate, replace faulty
digital display or multi-signal
module.
d. Replace faulty annunciator module.

3) Constant audible alarm that a. Faulty digital display or multi- a. Disconnect digital display and/or
can not be silenced by signal module. multi-signal modules one at a time
b. Faulty 20-wire ribbon cable. from 20-wire ribbon cables. If
pressing front panel MUTE
button. No visual alarm on any c. Faulty annunciator module. disconnecting a module cancels
audible alarm, replace that faulty
digital display or multi-signal
module.
module.
b. After all modules have been
disconnected from 20-wire ribbon
cables, disconnect each cable, one
at a time from annunciator module.
If disconnecting ribbon cable
cancels alarm, replace that faulty
cable.
c. If both 20-wire ribbon cables have
been removed from annunciator
module, and audible alarm has not
cancelled, replace faulty
annunciator module.

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Part No. 6-847684-00 Rev. E00