Koden MDC-5000 Series User manual

MDC-5000/5200/5500/7000(P)/7900(P) Series Revision History
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MDC-5000/5200/5500/7000(P)/7900(P) Series Service Manual
Doc No: 0093855002
Document Revision History
No.
Doc. No./Rev. No.
Revised Date
(Y/M/D)
Revised content
0
0093855002-00
2018/05/31
First edition
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Document No. Revised Version Norm
When part of the document needs to be revised, the document has advanced revision number.
The document No. is indicated at the lower right side on the cover and at the left or right side of the
footer region of each page.
© 2018 Koden Electronics Co., Ltd. All rights reserved.
No part of this publication may be reproduced, transmitted, translated in any from by any means without
the written permission of Koden Electronics Co., Ltd. The technical descriptions contained in this
publication are subject to change without notice. Koden assumes no responsibility for any errors,
incidentals or consequential damages caused by misinterpretation of the descriptions contained in this
publication.

Important Notice MDC-5000/5200/5500/7000(P)/7900(P) Series
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Important Notice
For copy and transcription of this Service Manual (hereinafter referred to as this manual),
permission from Koden is needed. Koden prohibits the un-authorized copy and transcription of this
manual.
If this manual is lost or damaged, consult a dealer of Koden or Koden.
The specification of the products and the contents in this manual are subject to change without
notice.
The contents displayed on the menu of product may be different from the expression of this
manual. The fonts and shapes of the keys and menus in the illustration may differ from the actual
ones, and some parts may be omitted.
Koden is not liable for damages and troubles arisen from misunderstanding of the contents in this
manual.
Koden is not liable for any damages caused by earthquake, lightning, wind and flood damage and
fire for which Koden is not responsible, and actions by third parties, other accidents, customer’s
unintended error/abuse and the use under other abnormal conditions.
Koden is not liable for damages of accompaniment (change/loss of memorized content, loss of
business profit, stop of business) arisen from use or failure of our products.
If the stored data are changed or lost, irrespective of causes of troubles and damages, Koden is
not liable for them.
Koden is not liable for any damages arisen from malfunction caused by combination of software
and connected equipment in which Koden is not engaged.

MDC-5000/5200/5500/7000(P)/7900(P) Series For Your Safe Operation
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For Your Safe Operation
Symbols used in this Service Manual
This manual uses the following symbols. Understand the meaning of each symbol and implement the
maintenance and inspection.
Symbol
Meaning
Mark for warning
This symbol denotes that there is a risk of death or serious injury when
not dealing with it correctly.
Mark for danger high voltage
This symbol denotes that there is a risk of death or serious injury caused
by electric shock when not dealing with it correctly.
Mark for caution
This symbol denotes that there is a risk of slight injury or damage of
device when not dealing with it correctly.
Mark for prohibition
This symbol denotes prohibition of the specified conduct. Description of
the prohibition is displayed near the mark.
IMPORTANT
Mark for important matters
This mark denotes that there is a possibility that data loss may interfere
the operation or that the expected result may not be obtained when the
radar is not dealt correctly.
Mark for reference
This mark shows the part to be referred to concerning this description.

For Your Safe Operation MDC-5000/5200/5500/7000(P)/7900(P) Series
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Caution Item on Equipment
Caution on a high voltage inside.
Ahigh voltage, which may risk your life, is used. This high voltage remains
in the circuit after you have powered off switch. To prevent touching the
high voltage circuit inadvertently, the protective cover is provided to the
high voltage circuit and the high voltage caution label is affixed. Ensure to
power off switch for your safety and discharge the electricity remaining in
the capacitor before starting to check. An engineer authorized by our
company should inspect and maintain the circuit.
Be sure to switch off the power in the boat.
If the power switch is inadvertently powered on during work, you will be
electrified. To prevent such accident from occurring, ensure to switch off
the power in the boat and the power of equipment. Furthermore, it is safer
to hang the caution tag with description of [Under Work] near the power
switch of equipment.
Caution on dust
Inhaling dust may cause respiratory disease. When cleaning the inside of
equipment, be careful not to inhale dust. Wearing a safety mask is
recommended.
Caution on location of equipment
Do not install the equipment where it is excessively damp and suffers from
excessive water drops.
Caution on static electricity
The static electricity may be generated from the carpet on the floor in the
cabin or clothes made of synthetic fiber. The static electricity may destroy
the electronic parts on the circuit board. Handle the circuit board, taking
the suitable anti-static measures.
Prohibited matter
Any Display and Scanner unit combination other than specified in the
manual is prohibited and will void manufacturer’s warranty.

MDC-5000/5200/5500/7000(P)/7900(P) Series For Your Safe Operation
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Caution Items on Handling
Caution on the rotating aerial
The radar antenna may start to rotate without notice. Please stand clear from
the antenna for your safety.
Caution on electromagnetic disturbance
The operating Antenna & Scanner unit radiates high-energy electromagnetic
wave. It may cause harmful effect for human body due to its continuous
radiation. As International regulation says, electromagnetic waves less than
100 watt/m2does not have a harmful effect on human bodies, but some kind of
medical devices such as heart pacemakers are sensitive even under the low
energy electromagnetic wave. Any personnel with such a device should keep
away from the electromagnetic wave generating position at all times.
Specified power density and distance from the radar (in accordance with the
provision as specified in IEC 60945)
Model name
Transmission power /
Antenna length
100W/m2
50W/m2
10W/m2
MDC-5004
MDC-5204/5240
MDC-5504/5540
4kW / 3 feet Antenna
0.9 m
1.3 m
2.8 m
4kW / 4 feet Antenna
1.0 m
1.4 m
3.1 m
4kW / 6 feet Antenna
1.2 m
1.7 m
3.7 m
MDC-5006/5060
MDC-5206/5260
MDC-5506/5560
MDC-7006/7060
MDC-7906/7960
6kW / 4 feet Antenna
1.5 m
2.1 m
4.5 m
6kW / 6 feet Antenna
1.7 m
2.4 m
5.4 m
MDC-5012/5010
MDC-5212/5210
MDC-5512/5510
MDC-7012/7010
MDC-7912/7910
MDC-7012P
MDC-7912P
12kW / 4 feet Antenna
2.1 m
2.9 m
6.4 m
12kW / 6 feet Antenna
2.4 m
3.4 m
7.6 m
12kW / 9 feet Antenna
2.9 m
4.1 m
9.0 m
MDC-5025/5020
MDC-5225/5220
MDC-5525/5520
MDC-7025/7020
MDC-7925/7920
MDC-7025P
MDC-7925P
25kW / 4 feet Antenna
2.9 m
4.1 m
9.2 m
25kW / 6 feet Antenna
3.5 m
4.9 m
10.9 m
25kW / 9 feet Antenna
4.1 m
5.8 m
13.0 m
Caution

For Your Safe Operation MDC-5000/5200/5500/7000(P)/7900(P) Series
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Do not disassemble or modify. It may lead to trouble, fire, smoking or
electric shock. In case of trouble, contact our dealer or our company.
In case of smoke or fire, switch off the power in the boat and the power of
equipment. It may cause fire, electric shock or damage.
Caution on the remaining high voltage.
A high voltage may remain in the capacitor for several minutes after you
have powered off. Before inspecting inside, wait at least 5 minutes after
powering off or discharging the remaining electricity in an appropriate
manner. Then, start the work.
The information displayed in this unit is not provided directly for your
navigation. For your navigation, be sure to see the specified material.
Use the specified fuse. If un-specified fuse is used, it may cause a fire,
smoke or damage.

MDC-5000/5200/5500/7000(P)/7900(P) Series Break in procedure of stored radar
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Break in procedure of stored radar
Following procedure is recommended for “Break In” of the stored radar.
Otherwise the radar sometimes exhibits unstable transmitting operation
such as arcing at its initial operation after long period of storage and make
the operation more difficult.
1. Extend preheat time as long as possible (preferably 20 to 30
minutes).
2. Set the pulse width to the shortest one and start the operation.
When the operation in the shortest pulse is stable then go to
operation in longer pulse and repeat the similar step until the
operation reaches to the final pulse condition.

Disposal of used cell and this radar MDC-5000/5200/5500/7000(P)/7900(P) Serie
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Disposal of used cells and this radar
Treatment of the used lithium ion cells
To dispose built-in lithium ion battery cells (CR2032) in this radar, insulate each terminal with scotch
tape, etc. and wrap in a plastic bag, etc.
The disposal and collection rules may be different depending on each municipal district. Obey the
directions of each district.
Disposal of this radar
This radar shall be disposed according to the municipal regulations or rules.
A high-energy density lithium ion battery cell is built in this radar.
Improper disposal of the lithium ion battery cell is discouraged as the cell
has possibility of short-circuiting. If it gets wet, generation of heat,
explosion or ignition may occur resulting in injury or fire.