JMA-5300MkIIsm

INDEX > 6.Troubleshooting > 6.3 Display Unit error messages
6.3.12 GYRO I/F (Data)
[1] Content
There is a problem with the communication signal from the GYRO I/F unit in the
Radar Process Unit of the display unit and the radar process circuit board.
If this error appears, the true azimuth cannot be displayed.
It is possible that there is a fault in the GYRO I/F unit, the terminal block circuit
board, or the radar process circuit board.
[2] Problem location
[2]-1 GYRO Interface Unit NCT-59A in the Radar Process Unit
• Check the insertion status of the J4201 in the GYRO I/F unit NCT-59A in the
Radar Process Unit.
• Check the lighting status of the LED on NCT-59A.
• GYRO Interface Unit replacement (NCT-59A). (see section 4.6.7, page 4-81)
[2]-2 I/F Unit NQA-2123 in Radar Process Unit
• Check the insertion status of J4105, J4107, J4108 and J4110 in I/F Unit NQA-
2123.
• I/F Unit replacement (NQA-2123). (see section 4.6.2, page 4-70)
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[2]-3 Radar Process Circuit CDC-1332 in Radar Process Unit
• Radar Process Circuit replacement (CDC-1332). (see section 4.6.3, page 4-73)
6.3.13 Battery Low
[1] Content
The battery for memory backup used in radar process circuit board CDC-1324 is
about to run out.
[2] Problem location
[2]-1 Battery CDC-1332 BT1
• Battery replacement (CR2032). (see section 4.6.4, page 4-76)
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