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JMA-5212-4/6
JRC JMA-5212-4/6 Service Manual
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4-34
4.2.2.
Power Supply Unit NBD-866A
[Note]
Before the power supply unit can be replaced, the power connectors of the processor unit must
be disconnected.
[Required tools]
A
Phillips screwdriver for 3 mm screws
[Removal]
(1)
Remove the six screws to remove the top cover
.
(Phillips scre
wdriver for 3 mm screws)
(2)
Remove the screws from both sides and the bottom of the power supply unit.
(Phillips scre
wdriver for 3 mm screws)
Remove
Remove
Remove
Remove
89
91
Table of Contents
Default Chapter
3
Table of Contents
3
Chapter 1_Equipment Overview
7
Overview
9
Scanner Unit
9
Display System
10
Principal Functions
10
Chapter 2_Equipment Overview
11
Configuration
13
Scanners and Transmitted Output Powers
13
Radar Configuration and Ship's Mains
14
Power System Diagram
16
Functional System Diagram
18
Scanner Unit
18
Display System
19
Input/Output Specifications
24
Scanner (J2)
24
Gps (J3)
25
Gyro/Compass (J5)
25
Ais/Nmea (J6)
26
DIP-Sw/Jumper Setting
27
Power Circuit CBD-1702A
27
GYRO I/F Circuit CMJ-304E
29
Radar Processing Circuit CDC-1350
32
AIS Processing Circuit CDC-1353
32
T/R Control Circuit CMC-1205R
33
Chapter 3 _Service Parts
37
Service Parts Lists for the Units
37
Spare Parts
37
Special Parts
38
Nke-2103 (Jma-5212-4/6/4Hs/6Hs)
38
Nke-2254 (Jma-5222-7/9)
38
Ncd-4380
39
Exploded Diagrams
40
Nke-2103
40
Nke-2254
44
Ndc-1460
48
Nce-7699A
52
Chapter 4 _Replacement of Major Units
57
Scanner Unit
57
Precautions for Replacing Parts in the Scanner Unit
57
Parts Replacement for the Scanner Unit NKE-2254
58
Magnetron Replacement / NKE-2254
59
Motor Replacement / NKE-2254
61
Motor Drive Circuit Board Replacement / NKE-2254
63
Modulator Circuit (CPA-264) Replacement / NKE-2254
64
Power Supply Circuit Board (CBD-1682A) Replacement / NKE-2254
66
T/R Control Circuit (CMC-1205R) Replacement / NKE-2254
67
Receiver (NRG-162A) Replacement / NKE-2254
69
Encoder Replacement / NKE-2254
71
Magnetron Fan Replacement / NKE-2254
73
Modulator Fan Replacement / NKE-2254
74
NKE-2103 Scanner Unit Parts Replacement
77
Magnetron Replacement for the NKE-2103
78
Motor Replacement for the NKE-2103
80
Motor Control Power Circuit Replacement for the NKE-2103
81
Modulation Circuit (CME-363) Replacement for the NKE-2103
82
Power Circuit (CBD-1783) Replacement for the NKE-2103
83
Receiver (NRG-610) Replacement for the NKE-2103
84
Encoder Replacement for the NKE-2103
86
Display System
88
Brilliance Control Circuit CCK-970
88
Power Supply Unit NBD-866A
90
Radar Processing Circuit CDC-1350
92
Battery
94
Target Tracking (TT) Unit NCA-877A
96
AIS Processing Circuit NQA-2155
97
GYRO I/F Circuit CMJ-304E
99
GYRO I/F Circuit Fuses
101
Operation Circuit CCK-979 for the Standard Operation Unit
103
PS2 Connector Circuit CQC-1204 for the Standard Operation Unit
105
Trackball TRD-101S(BK)N1 for the Standard Operation Unit
107
Chapter 5_Program Update
109
Main Program Update Procedure
111
Items to be Provided
111
Update Procedure
111
AIS Processing Circuit Update Procedure
112
Items to be Provided
112
Update Procedure
112
How to Check the Version
113
Chapter 6_Troubleshooting
115
Operation Check
117
Self-Diagnostic Function (Self Test)
118
Display Unit Check (Monitor Test)
119
Operation Unit Check (Keyboard Test)
120
Performance Monitor (MON Display)
121
System Alarm Log Display (Alarm List/Log)
121
System Information Display (System INFO)
122
Error Message Lists
123
Error Messages for the Scanner Unit
123
Error Messages for the Display System
130
Error Messages for the External Input-Output Equipment
135
Examples of Trouble
147
Internal Circuits
147
External Equipment
149
Chapter 7_Drawings
151
Outline Drawings
153
Outline Drawing of the Scanner Unit NKE-2254-7
154
Outline Drawing of the Scanner Unit NKE-2254-9
155
Outline Drawing of the Scanner Unit NKE-2103-4/4HS
156
Outline Drawing of the Scanner Unit NKE-2103-6/6HS
157
Outline Drawing of the Display System NDC-1460
158
Outline Drawing of the Display Unit NWZ-164
159
Outline Drawing of the Operation Unit NCE-7699A
160
Outline Drawing of the Multi-Function Operation Unit NCE-7729A
161
Outline Drawing of the Rectifier NBA-5111 (Option)
162
System Diagrams
163
Overall System Diagram of the Radar JMA-5222-7/9
163
Overall System Diagram of the Radar JMA-5212-4/6/4HS/6HS
164
Inter-Unit Connection Diagram
165
Inter-Unit Connection Diagram of the JMA-5222-7/9
165
Inter-Unit Connection Diagram of the JMA-5212-4/6/4HS/6HS
166
Unit Internal Connection Diagrams
167
Internal Connection Diagram of the Scanner Unit NKE-2254
167
Internal Connection Diagram of the Scanner Unit NKE-2103
168
Internal Connection Diagram of the Processor Unit NDC-1460
169
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JRC JMA-5212-4/6 Specifications
General
Brand
JRC
Model
JMA-5212-4/6
Category
Marine Radar
Language
English
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