GAI-Tronics WCB104 Wireless Call-Box Installation Guide - Manual (Page 9)

Pub. 42004-327A
Model WCB104 Wireless Call Box Installation Guide Page: 9 of 10
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Problem Reason Solution
1. Other Depress Reset button S2. No microphone audio.
2. Handset failure Replace the handset with a known good unit.
Ringing, but C ALL P LACED
LED does not flash.
C ALL P LACED LED
failure
During ringing, the C ALL P LACED LED should
measure:
TB1-3 and TB1-4 = 1.7 V dc
Replace LED lamp assembly if failed.
C ALL P LACED LED flashes,
but does not turn on
steadily.
Unable to establish
communication with
the cellular network. 1. Place handset back on hook and try to
establish call again.
2. Depress Reset button S2.
3. Check antenna connections.
4. Replace cellular module with a known
good unit.
C ALL C ONNECTED LED
doesn’t light when operator
answers.
C ALL A NSWERED LED
failure
Once the operator speaks, the C ALL
A NSWERED LED should measure:
TB1-5 and TB1-6 = 1.7 V dc
Replace LED lamp assembly if failed.
Receiver volume does not
increase. Push button failure Check operation of the push button. The push
button should measure:
Incoming Call = 11.0 V dc or greater during
(2s - ON, 4s – OFF)
Replace push button if failed.
Ringer does not sound. Ringer failure Check operation of the ringer. The ringer
should measure:
• Active = 1.0 ohm or less
• Inactive = infinite
Replace ringer if failed.
Solar Panel Integrity Loop
Failure reported, but
integrity loop is intact. Integrity Loop failure Check operation continuity of the loop. The
loop should measure 1.0 ohm or less.
Re-terminate connector if necessary.
Unit does not call-in when
tilted. Tilt Sensor failure Check operation of the tilt sensor. The sensor
should measure:
• Inactive = 1.0 ohm or less
• Active = infinite
Replace sensor if failed.
Handset Integrity Loop
failure reported, but
integrity loop is intact. Integrity Loop failure Check operation continuity of the loop. The
loop should measure 1.0 ohm or less.
Re-terminate connector if necessary.
1. Power failure Check power to the unit.
2. Call-in failure Depress Call-in switch.
Unit does not call-in.
3. Other Depress Reset button S2.