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Chapter 10 MAINTENANCE AND CHECK
Alarm Name
*Screen notation
Class Description
In preparing
Status Ready state after USB memory or SD card is inserted until
it can be used.
Writing
Status Writing data to USB memory.
Loading
Status Loading data from the USB memory.
10.6 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.
z Poor Contact in Terminal Board of Inter-Unit Cables.
z Poor contact in terminal board.
z The cable end is not fully connected, that it, contacted with earthed another terminal.
z Disconnected cable wire.
z Poor Contact of Connector with in Unit.
10.6.1 SPECIAL PARTS
JMA-3404
Location Parts No. Name Type Code Manufacture
Scanner V101 Magnetron MSF1421B 5VMAA00092 NJRC
Scanner A101 Circulator FCX68R 5AJIX00027 Orient Microwave
Scanner A102 Diode Limiter NJS6930 5ATBT00006 NJRC
JMA-3406/HS
Location Parts No. Name Type Code Manufacture
Scanner V101 Magnetron MSF1422B 5VMAA00090 NJRC
Scanner A101 Circulator FCX68R 5AJIX00027 Orient Microwave
Scanner A102 Diode Limiter NJS6930 5ATBT00006 NJRC
JMA-3411-4/4HS/6/6HS
Location Parts No. Name Type Code Manufacture
Scanner V101 Magnetron MAF1565N 5VMAA00102 NJRC
Scanner A101/ A102 Circulator FCX68R 5AJIX00027 Orient Microwave
Scanner A103 Dummy NJC4002 5ANDF00001 NJRC
Scanner A104 Filter NJC9952 5AWAX00002 NJRC
Scanner A301 Diode Limiter NJS6930 5ATBT00006 NJRC
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