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Page Title:
Isolating Troubles in CV-3633/GRC-144(V) Primary Power Distribution Circuits |
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|  TM 11-5820-695-35
(3)
Remove the CV-3633/GRC-144(V)
3-18.2. Isolating Troubles in CV-3633/GRC-144(V)
connector plug P1 from Receiver, Radio R-
Primary Power Distribution Circuits
1467(P)A/GRC-144(V)
J5 AC INPUT connector.
WARNING
(4)
Remove
alarm
monitor
3A1,
115 vac is present in the CV-
converter frequency electronics 3A2, amplifier-multiplier
3633/GRC-144(V). Do not perform
3A5 and power supply 3A6.
any of the continuity or resistance
checks given in this paragraph while
b.
Procedure.
the equipment is connected to the
primary power source.
(1)
Refer to the chart (c below) and
connect the multimeter leads between the two pins
a.
Preparation of the CV-3633/GRC-144TV).
referenced (fig. 5-108).
(1)
Remove
connector
plug
from
(2)
Observe that multimeter indication is
Converter-Multiplier CV-3633/GRC-144 (V) J1 AC PWR
within the tolerance specified in the chart for each step.
Connector.
If it is not, refer to the CV-3633/GRC-144(V)
interconnecting diagram (fig. 5-98) and primary power
(2)
Remove status panel 3A8.
distribution diagram (fig. 2-29).
c.
CV-3633/GRC-144(V) Primary Power Distribution Checks.
Connect multimeter leads between
Multimeter indication
Section
Step
pin
and
pin
(ohms)
1
a.
3A7J1-A
3A7P1-A
Zero
b.
-B
-B
Zero
c.
-C
-C
Zero
2
a.
3A7P1-A
3A7P2-A1
Zero
b.
-B
-A3
Zero
c.
-C
-A4
Zero
3
a.
3A7P2-A5
3A7P2-A8
Less than 1
b.
-A5
3A7XA5-2
Zero
c.
3A7P2-A6
3A7XA5-1
Zero
4
a.
3A7XA6A-1
3A7XA6-A3
Zero
b.
3A7XA6A-2
3A7XA6-A4
Zero
c.
-7
-10
Zero
d.
-8
-11
Zero
e.
-9
-12
Zero
5
a.
3A7XA6A-1
3A7XA6A-2
Less than 1
b.
-3
-4
Less than 1
c.
-7
-8
Less than 1
d.
-10
-11
Less than 1
e.
-8
-9
Less than 1
f.
-11
-12
Less than 1
g.
3A7XA6A-7
3A7XA6A-9
Less than 1.5
h.
-10
-12
Less than 1.5
i.
-5
-6
Less than 1.2
j.
-14
-15
Less than 1.2
Change 6 3-30.4
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