August 1999
76-100016-001
Intelligent Suppression Control/Fire Alarm System
PEGAsys
5-1
CHAPTER 5
TROUBLESHOOTING AND CORRECTIVE MAINTENANCE
5-1
INTRODUCTION
The effectiveness of this chapter is greatly increased by first
reading the entire manual. The service technician must have a
sure understanding of the purpose and correct function of the
module/device before attempting corrective maintenance. This
chapter contains instructions to aid a technician in locating faulty
modules/devices.
This chapter also provides instructions for the removal and re-
placement of the replaceable modules/devices of the
PEGAsys
system.
WARNING
All service to panel must be done with panel pow-
ered down to prevent damage to panel compo-
nents, personnel injury, or both
5-2
STANDARD FAULT-ISOLATION TECHNIQUES
Failure of the
PEGAsys
system to function properly will usually
be caused by one or more of the following faults:
a.
Failure of the Power Supply
b.
Burned Out Indicator
c.
Damaged Wiring or Corrosion
e.
Component Failure
When a failure occurs and the cause is not known, check as
many of these items as is practical before starting a detailed
check. If possible, obtain information about any changes taking
place that may affect the system.
5-2.1
Visual Inspection
When troubleshooting, the fault may often be discovered through
visual inspection alone. Some faults, such as burned out indi-
cators, shorted transformers, or wiring, can be located by sight
or smell. Check for smoke or the odor of burned or overheated
parts. Look for loose connections. Visual inspection is also use-
ful in avoiding damage to the system which could occur through
improper servicing methods. Refer to Table 5-1, Troubleshoot-
ing Index, and the paragraphs of this chapter for troubleshoot-
ing beyond visual inspection.
5-2.2
Power Checks
Many faults on the system can be caused by problems with
power. Ensure battery and line voltages are checked prior to
troubleshooting the system.
5-3
TROUBLESHOOTING
The
PEGAsys
system utilizes internal programming for con-
tinuous system testing. Most system faults can be isolated
through the operation of the front panel. Users/technicians
can initiate various testing via the use of the system menu
(See Paragraph 2-5) after entering a valid password.
Table 5-1. Troubleshooting Index
e
c
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C
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3
-
3
1
.
3
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3
2
.
4
-
5
-
t
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4
-
3
2
.
3
-
3
3
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4
-
5
y
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6
-
3
&
5
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4
.
3
-
3
&
3
.
3
-
3
&
7
.
7
-
7
,
6
.
7
-
7
8
.
7
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7
p
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7
-
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5
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3
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3
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d
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b
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t
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6
-
1
5
.
2
-
1
5
-
7
t
u
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t
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g
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l
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8
-
3
6
.
3
-
3
1
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7
-
7
t
u
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a
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9
-
3
7
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3
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3
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7
-
7
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A
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0
1
-
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8
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3
-
3
3
.
7
-
7
e
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e
i
T
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ti
C
1
1
-
3
9
.
3
-
3
4
.
7
-
7
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c
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v
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D
d
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F
-
-
8
.
3
-
3
4
.
4
-
5
e
l
b
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d
A
t
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a
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n
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C
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D
1
1
-
3
2
1
.
3
-
3
4
.
4
-
5
y
a
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b
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d
d
A
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D
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2
1
-
3
3
1
.
3
-
3
4
.
5
-
5
g
n
i
s
u
o
H
t
c
u
D
ri
A
3
1
-
3
4
1
.
3
-
3
l
a
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n
a
M
e
e
S
s
r
o
t
a
l
o
s
I
p
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o
L
-
3
u
r
h
t
4
1
-
3
6
1
5
1
.
3
-
3
Summary of Contents for PEGAsys
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