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Section 16 Failures and After-Sale Services
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Section 16
Failures and After-Sale
Services
16.1 Failure Detection
Semiconductor circuits can be considered to be almost free from defective semiconductors and/or
performance deterioration except when there are design and inspection errors, or external and human
induced causes. Generally, the causes of comparably frequent failures include line disconnection due
to humidity of the high resistor, failure of the variable resistor as well as contact failures of switches and
relays.
In addition to faulty parts, faulty adjustments (especially faulty tuning) or faulty maintenance (especially
faulty cable contact) occasionally make up causes of failures; thus, it is effective to reinspect or
readjust these items.
16.1.1 About alerts
Failures can be detected from alerts.
For details on alerts, please refer to "Appendix B, Alert List."
16.1.2 Alert description
For a description of alerts to be displayed, please refer to "Appendix B, Alert List."
16.1.3 Fuse inspection
Because there is a specific cause for any fuse meltdown, it is necessary to check the related circuits
even if there is no abnormality after changing a fuse. However, please give consideration that the fuse
meltdown characteristics vary significantly. The following table shows a list of the fuses used in this
unit.
List of Fuses Used
Placement Location
Part No.
Rated current
Protection circuit
Model name
Radar processing unit
(JMR-5404-X,
JMR-5406-X)
F2
3.15A
I/F circuit
ST4-3.15AN1
Radar processing unit
(JMR-5406-X)
F3
5A
I/F circuit
ST4-5AN1
Radar processing unit
(JMR-5410-4X/4XH/
6X/6XH)
F2
5A
Input/output circuit
(CMH-2452)
PC4401
ST4-5AN1
F3
10A
ST6-10AN1
Radar processing unit
(JMR-5425-7X/9X/6XH,
JMR-5430-S, JMR-5472-S,
JMR-5482-S/SH)
F2
10A
Input/output circuit
(CMH-2452)
PC4401
ST6-10AN1
F3
10A
ST6-10AN1
Содержание JMR-5410-4X
Страница 2: ......
Страница 22: ...xx NQE 3167 Power Control Unit NCT 4106A NSK Unit NBA 5111 Rectifier Warning Label Warning Label Warning Label ...
Страница 25: ...xxiii NKE 2255 7 9 6HS Scanner Unit Warning Label ...
Страница 27: ...xxv NKE 2103 4 4HS Scanner Unit NKE 2103 6 6HS Scanner Unit NKE 2255 7 9 6HS Scanner Unit ...
Страница 54: ...Contents 20 ...
Страница 68: ...Section 1 Overview 1 14 Outline Drawing of Radar Antenna NKE 2632 A ...
Страница 70: ...Section 1 Overview 1 16 Outline Drawing of Radar Antenna NKE 2043 NKE 2043 ...
Страница 72: ...Section 1 Overview 1 18 Outline Drawing of Radar Antenna NKE 2103 4 4HS ...
Страница 74: ...Section 1 Overview 1 20 Outline Drawing of Radar Antenna NKE 2255 7 ...
Страница 76: ...Section 1 Overview 1 22 Outline Drawing of Radar Antenna NKE 2255 6HS ...
Страница 78: ...Section 1 Overview 1 24 Outline drawing of 19inch Display NWZ 214 NWZ 214 ...
Страница 80: ...Section 1 Overview 1 26 Outline Drawing of Process Unit NDC 1678 NDC 1678 ...
Страница 82: ...Section 1 Overview 1 28 Outline Drawing of Trackball Operation Unit NCE 5605 Option ...
Страница 84: ...Section 1 Overview 1 30 Outline Drawing of Junction Box NQE 1143 ...
Страница 86: ...Section 1 Overview 1 32 Outline Drawing of 19inch Desktop Frame CWB 1659 ...
Страница 88: ...Section 1 Overview 1 34 Outline Drawing of Interswitch Unit NQE 3141 8A Option ...
Страница 126: ......
Страница 214: ...Section 4 Range and Bearing Measurement Methods 4 32 ...
Страница 244: ...Section 5 Basic Operation of the Radar 5 30 ...
Страница 324: ...Section 8 Monitoring a Dragging Anchor 8 8 ...
Страница 374: ...Section 11 Setting up Screen View 11 20 ...
Страница 380: ...Section 12 Setting up Alerts 12 6 Polygon tab Set a polygon alarm issuing range This function cannot be used now ...
Страница 520: ...Section 15 Maintenance Inspection 15 70 ...
Страница 546: ...Section 16 Failures and After Sale Services 16 26 ...
Страница 590: ...Appendix A Radar Antenna Display Unit Block Diagrams A 8 A 1 8 NKE 2255 7 9 6HS ...
Страница 592: ...Appendix A Radar Antenna Display Unit Block Diagrams A 10 A 1 10 NKE 2063A ...
Страница 596: ...Appendix A Radar Antenna Display Unit Block Diagrams A 14 A 2 3 NCE 5794 operation unit ...
Страница 622: ...Appendix D Menu List and Materials D 8 Tools VHF Call VHF1 Call VHF2 Call VHF3 Call ...
Страница 687: ......