Trouble Shooting; Special Parts - JRC JMA-3400 Series Instruction Manual

Chapter 9 MAINTENANCE AND CHECK

9.6 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.
⚫
Poor Contact in Terminal Board of Inter-Unit Cables.
⚫
Poor contact in terminal board.
⚫
The cable end is not fully connected, that it, contacted with earthed another terminal.
⚫
Disconnected cable wire.
⚫
Poor Contact of Connector with in Unit.

9.6.1 SPECIAL PARTS

JMA-3404
Location Parts No.
Scanner V101
Scanner A101
Scanner A102
JMA-3406/HS
Location Parts No.
Scanner V101
Scanner A101
Scanner A102
JMA-3411-4/4HS/6/6HS
Location Parts No.
Scanner V101
Scanner A101/ A102
Scanner A103
Scanner A104
Scanner A301
202
Name Type
Magnetron MSF1421B
Circulator FCX68R
Diode Limiter NJS6930
Name Type
Magnetron MSF1422B
Circulator FCX68R
Diode Limiter NJS6930
Name Type
Magnetron MAF1565N
Circulator FCX68R
Dummy NJC4002
Filter NJC9952
Diode Limiter NJS6930
Code Manufacture
5VMAA00092 NJRC
5AJIX00027 Orient Microwave
5ATBT00006 NJRC
Code Manufacture
5VMAA00090 NJRC
5AJIX00027 Orient Microwave
5ATBT00006 NJRC
Code Manufacture
5VMAA00102 NJRC
5AJIX00027 Orient Microwave
5ANDF00001 NJRC
5AWAX00002 NJRC
5ATBT00006 NJRC