Trouble Shooting - JRC JMR-611 Instruction Manual

7.2

TROUBLE SHOOTING

As this radar equipment includes complicated circuits, it is necessary to request a specialist engineer for repair
or instructions for remedy if any circuit is defective.
There are also troubles by the following causes, which should be referred to in checking or repair work.
1 Poor Contact in Terminal Board of Inter-Unit Cables
a) Poor contact in terminal board
b) The cable end is not fully connected, that it, contacted with earthed another terminal.
c) Disconnected cable wire
2 Poor Contact of Connector within Unit
Reference: This radar equipment is provided with standard spares which include two kinds of fuses. Refer
to table 7-4.
Name Type/Code
ST4-5AN1
Fuse
(5ZFCA00050)
ST6-10AN1
Fuse
(5ZFCA00053)
Parts No.
V101 Magnetron
A101 / A102 Circulator
A103 Termination
A104 Spurious Filter
A301 Diode Limiter
Table 7-4 Spare Fuses ( for NCM-994)
Shape (mm)
Φ6.35
31.8
Φ6.35
31.8
Table 7-5 Special Parts ( for NKE-387 )
Name Type
MAF1562R
FCX68R
NJC4002
NJC9952
NJS6930
7.2 TROUBLE SHOOTING
In use Spare Parts No.
1 3
1 3
Manufacturer Location
New JRC Scanner
Orient
Scanner
Microwave
New JRC Scanner
New JRC Scanner
New JRC Scanner
7-5

Location
Inside processing
F401
unit
Inside processing
F402
unit
Code
5VMAA00116
5AJIX00027
5ANDF00001
5AWAX00002
5ATBT00006

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