Trouble Shooting; Special Parts; Circuit Block To Be Repaired - JRC JMA-1030 Series Instruction Manual

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

Location Parts No.
NKE-1066 V101
NKE-2044 V101
NKE-2044 A101
NKE-2044 A102

9.6.2 CIRCUIT BLOCK TO BE REPAIRED

JMA-1032
Location
Scanner
Scanner
Display Unit
JMA-1034
Location
Scanner
Scanner
Scanner
Scanner
Scanner
Display Unit
Name Type
Magnetron M1624
Magnetron MSF1421B
Circulator FCX68R
Diode Limiter NJS6930
Circuit Block
Motor unit
Transmitter/ receiver /
Microwave unit
LCD Panel unit
Circuit Block
Motor unit
Modulation circuit
2ft Radar Antenna
Transmitter/ receiver
Receiver
LCD Panel unit
Chapter 9 MAINTENANCE AND CHECK
Code
5VMAA00120
5VMAA00092
5AJIX00027
5ATBT00006
Type
H-7BDRD0053
NZT-1066
NZP-2256
Type
H-7BDRD0052A
CME-397
NAX-96
NZT-2044
NRG-242
NZP-2256
Manufacture
New JRC
New JRC
Orient Microwave
New JRC
Remarks
Include Magnetron and
Chassis
Include Process Circuit
CDC-1433
Remarks
Include Horn Antenna
Include Magnetron
Include Process Circuit
CDC-1433
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