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Page Title:
Chart 7-1. Troubleshooting Chart |
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 TM 5-6350-262-14/5
NAVELEX 0967-466-9050
TO 31S9-4-38-1
Chart 7-1. Troubleshooting Chart
Step
Symptom
Probable trouble
Corrective action
procedure
2a
a.
AC POWER lamp does not
a. Burned out lamp DS 2 or fuse Fl,
a. Replace lamp. If lamp does not
illuminate
or defective power supply.
illuminate, proceed with performance
standards steps 2b and 3a to isolate
malfunction.
2b
a. Meter indicated 0 V ac.
a. Burned out fuse Fl.
a. Replace fuse.
b. Defective POWER switch S 1.
b. Replace power supply.
3a
a. Meter does not indicate 6.3 V ac
a. Defective power supply.
a. Replace power supply.
minimum.
4b
a. Meter indicates less than 24 V dc.
a. Battery not accepting charge.
a. Install a fully charged battery and
proceed with step 4c. If indication is
normal, battery was defective.
4c
a. Meter does not indicate between
a. Defective power supply or battery
a. Replace power supply.
26.5 and 30 V dc.
charging circuit.
4d
a. Meter indicates 0 V dc.
a. Burned out fuse F2.
a. Connect TZ352B positive lead to
top terminal of fuse F2. Voltage
present, replace fuse F2.
b. Replace power supply.
b. Defective power supply regulator.
4e
a. Meter does not indicate between
a. Defective power supply regulator.
a. Replace power supply.
4.75 and 5.25 V dc.
4f
a. Meter does not indicate between
a. Defective alarm/tamper module or
a. Replace applicable status processor
19 and 21 V dc at one or more of the
voltage monitor module.
plug-in pwb assembly (A1-A7).
test points listed.
4g
a. One or more (not all) LED's do not
a. Defective related latching circuit.
a.
Replace
alarm
identification
illuminate after expiration of exit time
module A11.
delay.
b. No LED's illuminate.
b. Defective LED.
b. Replace display module A12.
a. Defective exit time delay circuit.
a. Replace instantaneous alarm
b. Defective reset circuit or 1-second
module A9.
timer
b.
Replace
alarm
identification
c. Defective operating mode switch
module. All.
S3.
c. Check for 20 V dc between terminal
2-3 of switch S3 and ground. No
voltage, replace switch.
4j
a. One or more (not all) LED's remain
a. Defective related latching circuit.
a.
Replace alarm identification
illuminated.
module All.
b. All LED's remain illuminated
a. Defective exit time delay circuit.
a. Replace instantaneous alarm
b. Defective reset circuit.
module A9.
b. Replace identification module A1I.
4k
a. Alarm LEA D illuminates.
a. Defective 1-second timing circuit.
a.
Replace alarm identification
module All.
4m
a. Meter does not indicate less than
a. Defective alarm/tamper module or
a. Replace applicable status processor
0.5 V dc at one or more of the test
voltage monitor module.
plug-in pwb assembly (A1-A7).
points listed.
b. Defective tamper switch S4.
b. Check for continuity across switch
b. Meter indicates 19 to 21 V dc at
terminals with the plunger pulled out
A7TP1 only.
to the alarm bypass position and while
completely depressed.
Replaced
switch if defective.
5b
a. Meter indicates approximately 0.5
a. Defective voltage monitor module
a. Remove audible alarm module A8
V dc when operating mode switch is
A7.
and check for less than 0.5 V dc
set to SECURE.
between pin J8-11 and ground.
NOTE
Pin J8-1 is the
bottom pin in the
right-hand row.
7-2
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