JRC JFC-7050 User manual

Echo Sounder/Fish Finder
JFC-7050
18-7, Osaki 1-chome, Shinagawa-kuTokyo 141-0032 Japan
Email: [email protected]
Fax: [phone]
- High resolution - high accuracy
- Dual frequency(50/200KHz)
- Fully automatic(gain, range, etc)
- Alarm & A-scope
- Fast and easy operation
CODE No.72ZPNA2231

TABLE OF CONTENTS
Important Notice 1
Echo sounder System
Welcome 5
Introduction 7
Keypad 9
How to use [ Power / Brightness ] 10
Display Unit 11
SPEC of the connectors 12
Display
Screen 13
FF + Highway 14
FF + Steering 15
Operation
Mode 16
Gain 17
Select Page 18
Customize of screen 19
Customize of data bar 20
Navigation data edit 21
Menu 22
1. Range
2. Shift
3. Display
4. Rejection

5. Color
6. Pulse
7. Output Power
8. Alarm
9. Setup
0. Others
VRM 33
Installation
Display Unit Location34
Power Connection 35
Sensor Connection 35
Transducer Installation 36
Transom Mounting 37
Transom Transducer Maintenance 37
Through-hull Transducers 38
Dead-rise 39
Through-hull Transducer Maintenance 40

- 1 -
Pictorials
This manual uses the following symbols for easy understanding safety instructions. Always follow
these instructions carefully.
WARNING
Always follow this safety instruction to prevent death or injury.
CAUTION
Follow this safety instruction to avoid possible injury or damage to your
property.
Symbol “” is a CAUTION or WARNING label indicating the safety
instruction.
WARNING
This symbol is an Electrical Shock WARNING label.
Symbol is an instruction that you must not violate.
(This symbol instructs NOT to disassemble the system components)
Symbol is an operation instruction that you must follow.
(This symbol shows the main power OFF instruction.)
WARNING <For System Operators>
Always follow this instruction to prevent death or personal injury.
Turn power off
During
abnormality.
If smoke or a small of burning occurs, a fire or an electrical
short circuit may result. Turn the power switch OFF and
shut down the power supply immediately. Never try to repair
the system yourself. Call for service.
Do not open
Cabinet.
High voltage exists in the instrument. Contact with voltage
may cause possible injury or death.
Do not touch
back
side of the
equipment.
Harmful line voltage is present on back side of the
equipment. Never try to touch back side while power is
turned on.
Avoid excessive
shock to
display unit.
The LCD display module contains a liquid. Do not apply any
mechanical shock to the display. If the display broken, liquid
may leak and injure your skin and eyes.
Do not use with
poor
ventilation.
If you cover this unit or use in an enclosed place, it may
malfunction or become damaged as a result of overheating.
Use only where there is sufficient ventilation.

- 2 -
Installation Cautions <For service Personnel>
Follow installation instructions to avoid personal injury and system malfunction.
Installation in
rigid location.
Mount your JFC-7050 on a rigid frame or base to prevent your unit from
working loose.
Use correct
Installation
materials.
Use the installation materials provided in the standard accessory pack
only. If you use hardware of insufficient strength, your system may
loosen causing damaged.
Keep away from
direct sunlight.
Keep your system out of direct sunlight as it may become damaged by
overheating.
Keep away from
water.
Take care not to get water on or in your unit as it may be damaged
and/or cause an electrical shock.
Keep away from heat
source.
Keep your system away from other heat source as it may malfunction,
be damaged, or burn.
Use correct power
source.
Operate your system within the specified power voltage. An incorrect
power supply may cause
Maintenance Cautions<For Maintenance Personnel>
Use the following safety precaution internal inspection.
Discharge capacitors.
High voltage may be retained in the capacitors if the high-tension
circuit several minutes after you have turned the power switch off.
Check that power is
OFF
To prevent an electrical injury due to erroneous power switching, make
sure that the main power supply and the system power switch are both
in the off position. Additionally, attach a safety label showing that
service is in progress.
Avoid EMI.
Take care not to damage the ESDs (Electrostatic Sensitive Devices)
by static electricity from carpet and cloths.
Avoid dust.
Wear a safety mask so as not to breath in dust during inspection or
cleaning inside your system instruments.

- 3 -
Operation Notes <For operators>
Observe the following operation notes, otherwise the system failure or deterioration can result. And
periodical inspection and maintenance are required for keeping the system in an optimum condition.
Backup important data.
The waypoint and other registered data may become unreadable by
unexpected failure. We recommend recording this data separately.
Use correct transducer
only.
If you use incorrect transducer, the transmitter circuit may be
damaged due to a matching error. Consult is for system information.
Check transducer
Connection before
power on
Do not turn the power switch ON if the transducer is disconnected or
if it is not inserted into the water. If done, the transducer or
transmitter circuit may be damaged.
Always clean
the transducer
Since transducer performance can drop due to accumulated bottom
growth, keep the transducer clean. Never paint transducer surface.
Transducer must be
installed by authorized
personnel.
Consult us for transducer installation by authorized personnel.
WARNING
This product is designed to assist a navigation.
When you are sailing, use the certified chart from the Government or
IMO.

- 4 -

- 5 -
Echo sounder System
Welcome
JFC-7050 Echo Sounder / Fish Finder (called Echo Sounder) opens a new chapter of performance
and integration in vessel navigation system display and management. Whether you are a Cruiser or
Sport fisherman or both, JFC-7050 gives you the information you need.
CAUTION
JFC-7050 is Color LCD Charting Systems employs the latest in proven technology to provide accurate
navigation information. The Plotter functions of JFC-7050 are totally dependent upon the capability of
the navigation source to provide accurate position information. This device is only an aid to navigation.
It should be used in conjunction with all other navigation accuracy. For safety, always resolve any
uncertainty before continuing navigation.
CAUTION
The performance of LCD displays are degraded by continuous direct exposure to ultraviolet rays.
Locate your JFC-7050 Display away from direct sunlight. When not in use. Keep the display covered.
DISPLAY BREAKAGE WARNING
The LCD display module contains a liquid. If the display is broken and the liquid contacts your skin,
wash it off immediately in running water for 15 minutes. If the liquid contacts your eyes, immediately
flush your eyes with running water for 15 minutes. Contact a physician if any abnormal symptom is
experienced.

- 6 -

- 7 -
Echo sounder System
Introduction
The JFC-7050 is a premium multifunction command and control center. JFC-7050 front panel
keyboard and its wide screen with wide viewing area make placement easy. Although JFC-7050 offers
many advanced features, operation is simplified through the use of popup menus similar to those
found on personal computers.
Standard Equipment Configuration List
Display unit
Manual
Power cable
Protector
Mounting Bracket
Knobs

- 8 -
Echo sounder System
Option
Transducer
Model Name
Airmar Part No.
JRC Code
B45 TRANSDUCER
31-272-14-01
5AWBF00001
P58 TRANSDUCER
31-498-3-01
5AWBF00002
P319 TRANSDUCER
31-323-14-01
5AWBF00003
B60-20 TRANSDUCER
31-556-8-02
5AWBF00004
Type：B45Thru-Hull（8pin-A Female)
Depth＋Temp
TVR(50)：155 RVR(50)：-174
TVR(200)：164 RVR(200)：-184
Type：P58Transom Mount（8pin-A Female)
Depth＋Temp＋Speed
TVR(50)：153 RVR(50)：-164
TVR(200)：173 RVR(200)：-182
Type：P319 Thru-Hull（8pin-A Female)
Depth＋Temp
TVR(50)：154 RVR(50)：-179
TVR(200)：164 RVR(200)：-184
Type：B60-20 degrees Thru-Hull（8pin-A Female)
Depth＋Temp
TVR(50)：155 RVR(50)：-174
TVR(200)：164 RVR(200)：-184

- 9 -
Echo sounder System
Keypad
KEY
Description
[Cursor
Key]
With MENU : Choosing the menu.
Without MENU : Choosing the frequency.
(50/200KHz)
[GAIN/STC]
&
[ENTER]
Button : Enter when menu table on the screen.
Rotary : Adjustment of gain level with turning.
[+] &[-]
Setting up the depth range, when depth range
sets “manual range”.
[MENU]
Calls up Menu
[MODE]
Setting up Echo sounder mode
[CANCEL]
Return to the previous display, or canceled the
set-up.
[FUNC]
Setting up Using Frequently key function
[EVENT]
Choose the Active,Waypoint, setup Nav or
capture functions for using one function.
[VRM]
Press the VRM key, and show the bar for the
depth range.
[ PWR / BRT ]

- 10 -
Echo sounder System
How to use [Power/Brightness]
Press [PWR/BRT]
1. Use PWR:
Press [PWR/BRT] shortly to turn on Power.
To turn off the power, keep pressing the [BRT/PWR] until the end of counting.
2.Use BRT:
Press [BRT/PWR] shortly and the brightness can be controlled. Use the arrow keys [←][→]of the
cursor to control the brightness and the contrast.
3. Use day/night mode
Press [BRT/PWR] shortly and change mode. Use the arrow keys [↓][↑] of the cursor to change mode.
Choosing the frequency on the dual
Press [↑][↓]
You can see the red color is moving with the up and the down. In the active frequency in the red, it’s
on operation.
Choose the Gain & STC
Press [←][→]
You can see the red color is moving with the right and the left. In the active Gain & STC in the red, it’s
on operation.

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Echo sounder System
Display Unit
<Front>
<Rear>
7 inch Color LCD
Keypad
Knob
Mounting Bracket
Connector

- 12 -
Echo sounder System
SPEC of the connectors

- 13 -
Display
Screen
High Frequency
Depth bar
Low Frequency
Data bar
Red color : It is selected to
setup Frequency

- 14 -
Display
FF + Highway
The highway display provides a 3D view of own ship’s progress toward destination (waypoint).
Destination waypoint name
Destination
waypoint
Bearing from own
ship to destination
waypoint
Course Over
Ground
Range from own
ship to destination
waypoint
Speed Over
Ground
XTE Alarm Radius
XTE of Vessel
XTE Alarm Radius

- 15 -
Display
FF + Steering
The steering display provides steering information such as ship’s speed, course, range, bearing, TTG.
Destination waypoint
name
Bearing from
own ship to
destination
Speed Over Ground
Rangefrom own
ship to destination
Time-To-Go to destination
Bearing from own
ship to destination
waypoint
Course Over Ground
Cross-Track-Error

- 16 -
Operation
Mode
Echo sounder modes are selectable for single frequency or dual and some functions, for example
bottom zoom or lock.
Press [MODE]
1. Normal (200KHz or 50KHz)
Normal mode (with Auto Range active) displays the sounder image with the surface at the top of
the screen and the sea bottom in the lower part of the screen. The depth scale indicates the depth
range appearing in the display. Bottom contours and fish echoes are displayed at the depths where
they are detected. If the depth Range is set manually to a value less than actual water depth, sea
bottom echoes are not displayed, but all other echoes within the Range setting are displayed.
2. Bottom Zoom (200KHz or 50KHz)
Bottom Zoom magnifies the sounder display from the sea bottom toward the surface for a short
distance. The sea bottom contour is displayed and additional contour lines are added at intervals
above the sea bottom to aid in determining distances of echoes near the bottom. Use the Sounder
Menu to set the magnified Bottom Range from 2.5 to 20m (10 to 60ft.). Default setting is 10m (40ft.).
If the depth Range is set manually, the setting must place the sea bottom echo in the lower portion
of the screen for Bottom Zoom to be effective.
3. Bottom Lock (200KHz or 50KHz)
Bottom Lock divides the Echo sounder main screen image for the selected Echo sounder into two
sections. The left hand section displays a Normal Mode image. The right hand section of the screen
displays the Echo sounder image relative to the sea bottom. The sea bottom appears as a straight
line with the Echo sounder image magnified for a short distance toward the surface. A scale
appears on the right for estimating distances of echoes near the bottom. Use the Echo sounder
Manu to set the magnified Bottom range from 2.5 to 20m (10 to 60ft.). Default setting is 10m (40ft.).
If the depth Range is set manually, the setting must place the sea bottom echo in the
lower portion of the screen for Bottom Lock to be effective.
Echo sounder modes are selectable for single frequency or dual and some functions, for example
bottom zoom or lock.

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Operation
4. Normal (200KHz and 50KHz)
The high frequency (200KHz) displays on the left and the low frequency (50KHz) Normal displays
on the right, which increase the accuracy of a fish school and your decision to catch fishes.
5. Bottom Zoom (200KHz and 50KHz)
The high frequency (200KHz) displays on the left and the low frequency (50KHz) Bottom Zoom
displays on the right, which increase the accuracy of a fish school and your decision to catch fishes.
Gain
Setting up the gain.
1. Auto / Manual Gain
Press [GAIN/STC]
Press the button changes Auto Gain / Manual Gain.
(* Setting is available individually)
2. Set Gain
Tune [GAIN]
Turn to the left, the gain level will be decreasing. Turn to the right, the gain level will be
increasing.
(It is applied Auto Gain Adjustment, when the mode sets “Auto gain mode”)