KR-407S - Robitronic
KR-407S 2.4GHz SS Receiver
Instruction
Manual
Pairing
At this time we would like to thank you for purchasing the KR-407S. This product has adopted the current 2.4GH z
SS system which allows the use of multiple channels without the need to search an available
open channel like the bands of a crystal system. This product corresponds to the transmitters that are sold by our
company, listed below. Please read this instruction manual before using this product. Also please read the instruction
manual of the transmitter being used.
Transmitter Response RF Module
EX-5UR / RF-901S
When using the receiver for the first time, the receiver must store the ID number of the module and 'pairing' of the receiver and
module is necessary. Pairing must be performed when the module or transmitter that is used is changed. When multiple receivers are used, each receiver must go through the pairing process at least once.
For RF-901S
While pressing the setup
button, transmitter ON
(Continue to press the
button)
1
For your safety, please note the handling and use of this product.
+
Preparation
Completed
While pressing the button
Release Button
Preparation
LED
illuminates
(3seconds)
2
LED goes out
Receiver is brought
close to the transmitter
4
a highly substantial damaging accident may occur.
This product is manufactured for surface use radio controls. *Discontinue use for all other purposes.
Discontinue use in the event of a thunderstorm. *There is danger of a lightening bolt striking the antenna of the
transmitter.
Do not use if there are rain puddles. *Loss of control may occur due to water damage.
Discontinue use when consuming alcohol or medication that may hinder concentration or judgment. * Unexpected accidents are caused with a judgment mistake.
Some parts are sharp and angular, please be careful.Please keep away from small children.
Poisoning by accidental ingestion and there is a risk of burn injuries.
Only use the batteries specified in the instruction manual of the transmitter.
To turn the system on, start by turning on the transmitter then the receiver. To turn off the system, turn off the
receiver first, then the transmitter in this sequence.
Please be sure to use only our products for the transmitter and servos.* Concerning the damage and the like,
which is generated when combining products that are not our company's genuine products we do not owe
responsibility.
Altering the transmission module is inhibited by law and is subjected to penal code violations. Resolution remodeling of all products may result in the cause of a short and other accidents. In addition, if this product is altered
we will refuse repair service.
Please do not use this product inside an airplane, hospital, near any automatic control equipment, medical electrical machinery and apparatus such as fire alarms.In addition with respect to the law, if this product effects
other radio equipment and electronic equipment, use must be discontinued at once.
3
+
LED
semi-illuminated
(dark illumination)
This displays shows the possibility or a substantially damaging accident which can cause injury.
CAUTION
Please avoid storage in a place of high temperatures and high humidity because it may cause the breakdown, damage and
deformation of the product.
Please note when using with an engine model, place where exhaust and the waste oil will not come into contact with the
product. *In case of submerging in oil or water, please send it out for repair.
This product's performance is designed for use in the shown specified usage, which is based on this instruction manual and
the instruction manual of the transmitter that is used. When the instructions are not understood, please contact our service
department for advises.
After verifying the safety of use, think of all the accidents possible and please enjoy with responsibility.
Forward Key
Back Key
1 Hold the For ward and Back keys
down and turn on the power switch.
2 'PAIR' will be displayed and flashing
on the LCD screen and the buzzer
will sound.
Power switch
3 After about five seconds the buzzer
and flash of the 'PAIR' on the LCD
screen will end.
3: Hold the setup button on the KR-407S and turn on the power.
Once the LED is lit, release the button and pairing is complete.
4: Once you've completed the pairing, turn off the power to the
receiver and transmitter and verify connection by turning the
system on again.
If you are having difficulties pairing, make sure that you
are not around a wireless LAN or microwave. If you are
please move to a different location and try again.
CAUTION
WARNING
When turning on the transmitter, the RF-901S module
will scan for a free frequency while the receiver scans
for its paired module. This is called 'carrier sense'.
In order to be able to do 'carrier sense' appropriately, the location where power of the transmitter is turned on should be as
close as possible to where the model will be operated.
Fail-safe function
Fail-safe is when the receiver loses the radio signal
of the transmitter, and the function keeps channel 2
(throttle) in an optional position. The configuration
is usually full brake or neutral.
WARNING
Please be sure to set the fail-safe.
Configuration instructions
Turn on the transmitter and the receiver and verify operation.
On the transmitter, hold the throttle to the position you would like it to be
set to. While holding the position, press the setup button on the receiver.
Hold the setup button on the receiver until the LED light goes off and
release the button.Fail-Safe setting is complete.
CAUTION
If you change the position of the fail-safe operation, please
set again. We recommend to set it again even if you modify
the car engine brake linkage.
Check the operating range of each channel and re-adjust the travel, steer-
CAUTION
4
3
2
Please do not cut the antenna wire. You will receive less range. Please place
antenna away from receiver battery, ESC, motor and silicon wires and any other
noise source. The antenna wire for the receiver requires special attention.
1
B
Setup Button
When you believe you need service.
B
Antenna
This will aid in knowing the problem and parts to be used and repair time.
1
B
If you request a repair, please report the fault in as much detail as possible.
2
1
About Repairs
Antenna Tube
3
2
Placement with attention to electric cars
LED Light
4
3
2
1
B
When a channel is not in use and
to prevent dirt and dust, attach
the provided connector cap.
Please keep distance to the receiver site, due to
noise sources of the battery, motor, ESC, etc. if possible. Also keep away power condensers and shotki
diodes that generate noise from the receiver antenna
if possible.
CAUTION
If you use it without checking these
setting, the ser vo may become damaged or may cause abnormal behavior.
ESC (speed controller) should also be reset to your transmitter.
4
3
3 and 4: Channels 3 and 4 connect to
other devices.
2: Channel 2
Throttle servo or ESC are connected.
1: Channel 1
Steering servo is connected.
B: Battery Channel
Battery is connected.
After pairing is complete, Please turn off in
the order of receiver transmitter.
Note in regard to use and carrier sense
ing, throttle high point and brake points on your transmitter. For electric cars,
4
After turning off
the power of the
transmitter and
the receiver once,
operation is ready.
2: Prepare the transmitter or RF module when you
are ready to pair the KR-407S. (If you are using an
electronic speed controller in your car, make sure
you have the power connected and turned on
when pairing.)
When changing your conventional receiver to the KR-407S receiver, please note the following.
Installing the Antenna
Please use plastic mounts and a plastic antenna tube.
Please do not use a metal antenna mount because it
will create noise and problems.
To protect the main antenna, insert the antenna into
the antenna tube.
Also please do not disconnect or cut the antenna.
This will cause loss of signal.
6 Pairing Complete
Receiver
LED
Illuminated
KR-407S compatibility with conventional models
Our company cannot owe responsibility from the nature of the radio control models and the customer assumes all responsibilities
that result from this product being used.
Names of Parts
LED light s up and you're
done.
If it is flashing or dim,
please try to set again.
1: Pairing mode for transmitter or RF module. The
models differ for each. Please refer to the manual
of each model and the figure on the left.
For EX-5UR
CAUTION
5
Within 1M
The contents of this display show a possibility of death or where a serious injury may occur or
WARNING
While pressing the setup button on
the rec eiver, the rec eiver power
source is turned on. (When power is
turned on, the button is released.)
Antenna
Please refer to your manual once more and please inspect.
When you do not understand something, please inquire our service
department.
When inquiring to our service department about a breakdown, please
include as much detail as possible of the contents mentioned below about
your problem.
Name of products (battery, car, transmitter & motor) used.
When breaking down, usage condition and description of breakdown condition.
Your address, name and telephone number.
When a repair is being requested, please be sure to send the memo which
includes the above mentioned contents in as much detail as possible.
Technical Specifications
KR-407S Receiver
High Speed Response / fail-safe function
Number of Channels: 4CH/
Power Source: 4.8v ~ 7.4v
Size: 28x18.3x18.5 / Weigh: 7.5g
KONDO KAGAKU CO.,LTD.
Web Site :www.kopropo.co.jp
Phone:+81-3-3807-7648
4-17-7 Higashi-Nippori,Arakawa-ku,
Tokyo Japan 116-0014
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