16
Primary DC power for the amplifier is provided by the host system. The amplifier
module has a DC/DC converter that converts the +27 Vdc to +15 Vdc, +5 Vdc,
and +8 Vdc for internal use.
MAINTENANCE
5-1. INTRODUCTION
This section contains periodic maintenance and performance test procedures for the Multichannel
Power Amplifier. It also contains a list of test equipment required to perform the identified tasks.
NOTE
Check your sales order and equipment
warranty before attempting to service or
repair the unit. Do not break the seals on
equipment under warranty or the warranty
will be null and void. Do not return
equipment for warranty or repair service
until proper shipping instructions are
received from the factory.
5-2. PERIODIC MAINTENANCE
Periodic maintenance requirements are listed in Table 5-1. Table 5-1 also lists the intervals at
which the tasks should be performed.
Table 5-1. Periodic Maintenance
TASK
INTERVAL
ACTION
Inspection
Cables and
Connectors
12 Months
I
I
n
n
s
s
p
p
e
e
c
c
t
t
s
s
i
i
g
g
n
n
a
a
l
l
a
a
n
n
d
d
p
p
o
o
w
w
e
e
r
r
c
c
a
a
b
b
l
l
e
e
s
s
f
f
o
o
r
r
f
f
r
r
a
a
y
y
e
e
d
d
i
i
n
n
s
s
u
u
l
l
a
a
t
t
i
i
o
o
n
n
.
.
C
C
h
h
e
e
c
c
k
k
R
R
F
F
c
c
o
o
n
n
n
n
e
e
c
c
t
t
o
o
r
r
s
s
t
t
o
o
b
b
e
e
s
s
u
u
r
r
e
e
t
t
h
h
a
a
t
t
t
t
h
h
e
e
y
y
a
a
r
r
e
e
t
t
i
i
g
g
h
h
t
t
.
.
Performance Tests
12 Months
P
P
e
e
r
r
f
f
o
o
r
r
m
m
a
a
n
n
n
n
u
u
a
a
l
l
t
t
e
e
s
s
t
t
p
p
e
e
r
r
p
p
a
a
r
r
a
a
g
g
r
r
a
a
p
p
h
h
5
5
-
-
5
5
.
.
5-3. TEST EQUIPMENT REQUIRED FOR TEST
Test equipment required to test the amplifier is listed in Table 5-2. Equivalent test equipment may
be substituted for any item, keeping in mind that a thermistor type power meter is required.
NOTE
All RF test equipment must be calibrated to 0.05
dB resolution. Any deviation from the nominal
attenuation must be accounted for and factored
into all output readings.
Section
5
