Futaba T2PHKA-75A Radio Control Transmitter User Manual

Futaba Corporation Radio Control Transmitter Users Manual

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T2PHKA 75A User Manual HTML Version

Users Manual

Thank you for purchasing a Futaba 2PH/2PHKA.

Before using your 2PH/2PHKA, read this manual carefully and

use your R/C set safely.

After reading this manual, store it in a safe place.

-No part of this manual may be reproduced in any form without prior permission.

-The contents of this manual are subject to change without prior notice.

-This manual has been carefully written. Please write to Futaba if you feel that any corrections or clarifications

should be made.

-Futaba is not responsible for the use of this product.

APPLICATION, EXPORT, AND RECONSTRUCTION

1. This product may be used for models only.

The product described in this manual is subject to regulations of the Ministry of Radio/Telecommu-

nications and is restricted under Japanese law to such purposes.

2. Exportation precautions

(a) When this product is exported from Japan, its use is to be approved by the Radio Law of the

country of destination.

(b) Use of this product with other than models may be restricted by Export and Trade Control Regu-

lations. An application for export approval must be submitted.

3. Modification, adjustment, and replacement of parts

Futaba is not responsible for unauthorized modification, adjustment, and replacement of parts of this

product.

THE FOLLOWING STATEMENT APPLIES TO THE RECEIVER (FOR U.S.A.)

This device complies with part 15 of the FCC Rules. Operation is subject to the following two

conditions:

(1) This device may not cause harmful interference, and

(2) This device must accept any interference received, including interference that may cause

undesired operation.

THE RBRCTM SEAL (FOR U.S.A.)

The RBRCTM SEAL on the (easily removable) nickel-cadmium battery contained in Futaba products

indicates that Futaba Corporation of America is voluntarily participating in an industry program to

collect and recycle these batteries at the end of their useful lives, when taken out of service within the

United States. The RBRCTM program provides a convenient alternative to placing used nickel-cad-

mium batteries into the trash or municipal waste which is illegal in some areas.

Futaba Corporation of America's payments to RBRCTM makes it easy for you to return the spent bat-

tery to Futaba for recycling purposes. You may also contact your local recycling center for informa-

tion on where to return the spent battery. Please call 1-800-8-BATTERY for information on Ni-Cd

battery recycling in your area. Futaba Corporation of America's involvement in this program is part of

its commitment to protecting our environment and conserving natural resources.

NOTE: Our instruction manuals need to encourage our customers to return spent

batteries to Futaba or a local recycling center in order to keep a healthy environment.

RBRCTM is a trademark of the Rechargeable Battery Recycling Corporation.

Warning: This product contains a chemical known to cause cancer and birth defects (or other

reproductive harm).

Before Operation........................................................................ 6

System Contents.............................................................................................................................6

Nomenclature / Handling.............................................................................................................7

Assembly / Adjustment .............................................................. 9

Receiver And Servo Connection.................................................................................................9

Assembly Precautions.................................................................................................................10

Digital Proportional Adjustment..............................................................................................12

Safety Precautions ...................................................................... 2

Definition Of Symbols....................................................................................................................2

Running Preparations Safety Precautions................................................................................2

Running Safety Precautions.........................................................................................................3

Storage And Disposal Safety Precautions................................................................................4

Other Safety Precautions.............................................................................................................5

Description Of Functions ......................................................... 13

Steering Trim................................................................................................................................13

Throttle Trim................................................................................................................................13

Servo Reverse................................................................................................................................13

Steering EPA..................................................................................................................................14

Throttle EPA.................................................................................................................................14

Steering D/R...................................................................................................................................14

MC230CR/MC330CR....................................................................................................................15

Reference ................................................................................... 16

Ratings.............................................................................................................................................16

Troubleshooting............................................................................................................................17

Table Of Contens

Safety Precautions

For your safety as well as that of others. Please read this manual thoroughly prior to instal-

lation and operation of your digital proportional R/C system.

Definition Of Symbols

The following defines the symbols used in this manual.

Explanation Of Symbols

Warning

Indicates a procedure that could result in serious injury or death to the user

or other persons if ignored and not performed properly.

Caution

Indicates a procedure that may result in serious injury to the user or other

persons, as well as physical damage. If ignored and not performed properly.

Safety Precautions

Explanation Of Graphic Symbols

Indicates an operation that prompts a warning (including Caution).

Indicates an operation that must not be performed.

Indicates an operation that always must be performed.

Caution

(When using a Ni-cad battery to power your system)

When the charger is not in use, disconnect from the outlet.

To prevent accidents, overheating and short circuits.

Running (Sailing) Preparations Safety Precautions

Warning

(When using a Ni-cad battery to power your system)

Charging

When using a Ni-cad battery to power your system, always charge and check the

battery voltage prior to operation.

Should the battery discharge below the minimum voltage level, control will be lost.

Safety Precautions

Running (Sailing) Safety Precautions

Warning

Conduct Tests

Prior to operation always preform a range test.

Even one abnormality in the R/C system may cause loss of control.

[Range Test Procedure]

Have a friend hold the model, or place on a stand where the wheels or prop can not

come in contact with any object. Collapse the transmitter antenna and operate from a

distance of about 10 yards. Be sure to check the movement of each servo to make

sure they follow the movement of the steering wheel and throttle trigger. If the servos

do not follow the commands from the transmitter or any type of interference is de-

tected, Do Not operate the model.

Fully extend the transmitter antenna.

If the transmitter antenna is not fully extended range will be reduced and control may

be lost.

Prohibited

Do not operate two or more models on the same frequency at the same time.

Operation of two or more models on the same frequency at the same time will cause

interference and loss of control of both models.

AM, FM and PCM are different methods of modulation. Nonetheless the same fre-

quency can not be used at the same point in time, regardless of the signal format.

Do not operate outdoors on rainy days

Never operate in the rain or run through puddles.

The transmitter, receiver, batteries and most servos, and speed controls are not wa-

terproof. Contact with any type of moisture or immersion in water or snow will cause

damage along with possible loss of control. Should any type of moisture enter any

component of the system immediately stop using the R/C system and return to our

service center for inspection.

Prohibited

Do not operate when visibility is limited.

Should you loss sight of the model a collision or other dangerous situation may occur.

Prohibited

Do not operate near people or roads.

Do not operate near high tension power lines or communication broadcasting anten-

nas.

Prior to the operation of any model be sure the area you plan to use is safe. Be aware

of all object that may be in the path of your model. Do not operate the model where

people or any type of moveable object could stray in the path of your model. Control

loss due to interference, component failure, loss of sight or low battery voltage could

result in serious injury to yourself and others as well as damage to your model.

Prohibited

Do not Operate your R/C system within 1 mile of another site where radio control

activity may occur.

Interference from other R/C systems will cause loss of control.

Safety Precautions

Prohibited

Do not operate when you are tired, not feeling well or under the influence of alcohol or

drugs.

Your judgement is impaired and could result in a dangerous situation that may cause

serious injury to yourself and others.

Before you turn on the power switch on the transmitter, always check to see that the

trigger is at the neutral position. Always turn the transmitter on first, then the receiver.

When you turn the system off, always turn the receiver off first then the transmitter.

This step is very important always follow this procedure.

If this procedure is not followed, injury to yourself and others as well as loss of control

could occur.

Adjustment Note

Make all adjustments to the radio control system with engine not running, or the elec-

tric motor disconnected.

If the engine is running or the motor is connected while adjustments are made the

model may run out of control.

Remove the main battery source from electric powered models when they are not

being used.

Should you accidently leave the receiver switch on the model could run out of control.

Caution

Do not touch

Do not touch the engine, motor, speed control or any part of the model that will gener-

ate heat while running.

Touching hot parts will result in serious burns.

Storage And Disposal Safety Precautions

Warning

(When using a Ni-cad battery to power your system)

At the end of a days operation store the system with Ni-cad battery discharged. Be

sure to recharge the system before it is used again.

You should fully discharge your systems batteries periodicity to prevent a condition

called "memory". For example if you only make two run in a day or you regularly use a

small amount of the batteries capacity, the memory effect can reduce the actual ca-

pacity even if the battery is charged for the recommended amount of time.

Prohibited

Do not throw a Ni-cad battery into a fire. Do not disassemble or attempt to repair a Ni-

cad battery pack.

Overheating, damage and acid leakage may lead to burns, loss of eye sight as well as

numerous other types of injuries. The electrolyte in Ni-cad batteries is a strong alkali.

Should you get even the smallest amount of the electrolyte in your eyes, Do Not rub,

wash immediately with water, seek medical attention at once. The electrolyte can

cause blindness. If electrolyte comes in contact with your skin or clothes, wash with

water immediately.

Safety Precautions

Other Safety Precautions

Caution

When operating two or more models at the same time, have a third person act as a

spotter. They will be in charge of safety and you should follow their instructions.

Beginners should receive instructions regarding safety and operation from an experi-

enced modeler.

Use genuine Futaba parts only.

Always use only genuine Futaba receiver, servos, electronic speed controls along with

other optional parts and components.

Futaba will not be held responsible for damages caused by other than genuine Futaba

parts and components. Use only genuine Futaba parts and components listed in the

instruction manual and catalog.

(When using a Ni-cad battery to power your system)

Prohibited

Do not short circuit the Ni-cad battery terminals.

Short circuiting the terminals will lead to sparks and overheating and could cause a fire

and burns as well.

Caution

Prohibited

Do not store your R/C system where it will be exposed to the following conditions.

• Extreme heat or coldness

• Exposed to direct sunlight

• Where humidity is high

• Where vibration is prevalent

• Where dust is prevalent

• Where there is steam and condensation

• Where the system would be exposed to engine exhaust

Storing your R/C system under adverse conditions could cause deformation and nu-

merous other problems with operation.

(When using a Ni-cad battery to power your system)

Caution

When disposing Ni-cad batteries, cover any exposed contacts with some type of insu-

lation to prevent short circuit.

Improper disposal could cause fire.

*Special Note!

Some states require special handling when Ni-cad batteries are disposed. Con-

tact the State Agency responsible for recycling hazardous waste for the proce-

dures in your state.

Before Operation

System Contents

After opening the container, check the contents for the following items. the contents will

vary with the system purchased.

System with

2 Servos System with

1 Servo

System with

E.S.C. and

Servo

Transmitter

Receiver

Servo

E.S.C.

Switch

Battery Holder

Miscellaneous

T2PH or T2PHKA (x1)

R122JE (x1)

S3003 (x2) S3003 (x1)

MC230CR (x1)

or MC330CR (x1)

CSW-BN (x1)

R2-BSS-N (x1)

Servo mounting hardware and servo horns

Mini Screwdriver

Should any item be missing or you are uncertain of the contents of the system, please

contact the dealer where the unit was purchased.

Receiver R122JE

Output Connector

"CH.1" : Steering Servo

"CH.2" : Throttle Servo

Power Supply Connector (BATT)

Servo S3003

Crystal

Servo Horn Mounting Flange

To Receiver

FP-R122JE

AM 2 CHANNEL RECEIVER

BEC

X'TAL CH.2

CH.1

BATT

Before Operation

Transmitter T2PH / T2PHKA

Nomenclature / Handling

(T2PH)

(T2PHKA)

Antenna

Trim Panel Cover

Battery Level

Indicator

*Two LED display to indicate

battery voltage level.

*If the Red led flashes, replace

batteries.

*Open the cover by sliding it

to the left.

Steering Trim (P13)

Steering Wheel

Throttle Trigger

Grip Handle

¥ Servo Reversing Switch (P13)

¥ Steering EPA (only 2PHKA) (P14)

¥ Throttle EPA (only 2PHKA) (P14)

¥ Steering D/R (only 2PHKA) (P14)

Power Switch

Throttle Trim (P13)

*When slid upward,

the power is turned on.

*Adjusts the steering in small increments

so the model will run straight.

*Turn model to left or right.

*Adjusts the throttle in small increments

so the model will not move at neutral.

*Control the speed of the model and movement

forward and backward.

E.S.C. MC230CR

/ MC330CR

Motor connector

Connects to the motor.

(Orange) is plus. (Blue) is minus.

If the motor rotates in the wrong

direction, interchange the connections of

this connector.

Nicd battery connector

Connects to the running Nicd battery.

(Red) is plus. (Black) is minus.

Receiver connector

Connects to the receiver throttle channel.

Miniature screwdriver

Accessory. Use to press the

pushbutton switch.

Checker LED

Power switch

Pushbutton

switch

MC230CR

(Orange)

(Blue)

(Black)

(Red)

Applicable motors

(Number of turns is criteria.)

•Use the MC230CR with a motor with 20T or more turns.

•Use the MC330CR with a motor with 13T or more turns.

*If a motor with a number of turns smaller than the above is used, the heat

protector and overcurrent protection circuit may operate. The number of turns

of the motor is a criteria only. Depending on the running conditions, the

protection circuit may operate even if the condition above is satisfied.

Nicd battery 6~7 cells (7.2~8.4V)

Before Operation

Handling Procedure For Bat-

teries (8 AA Size Batteries)

(Battery Replacement Method)

1Remove the battery cover from the

transmitter by sliding it in the direc-

tion of the arrow in the figure.

2Remove the used batteries.

3Load the new AA size batteries . Pay

very close attention to the polarity

markings and reinsert accordingly.

4Slide the battery cover back onto the

case.

(Check)

Turn the power switch on the trans-

mitter to the ON position. Check to

see if the two LEDs light.

If the LEDs fail to light, check the

batteries for insufficient contact in the

case or incorrect battery polarity.

Caution

Always be sure you reinsert the bat-

teries in the correct polarity order.

If the batteries are loaded incorrectly , the

transmitter may be damaged.

When the transmitter will not be

used for any short or long period of

time, always remove the batteries.

If the batteries do happen to leak , clean the

battery case and contacts thoroughly. Make

sure the contacts are free of corrosion.

(Battery Disposal)

Some states require special handling

when any type of battery is disposed.

Contact the State Agency responsible

for recycling hazardous waste for pro-

cedures in your area.

(Battery Alarm Display)

When the Green battery level indica-

tor (LED) goes off and the Red LED

flashes, change the batteries immedi-

ately.

OPEN

Red LED Green LED

(Battery Level Indicator)

Assembly / Adjustment

Receiver And Servo Connection

As you connect the receiver, servo's and other components, do so in accordance with the

"Assembly Precautions" listed on the next page.

FP-R122JE

AM 2 CHANNEL RECEIVER

BEC

X’TAL

CH.2

CH.1

BATT

FP-R122JE

AM 2 CHANNEL RECEIVER

BEC

X’TAL

CH.2

CH.1

BATT

Connections when a E.S.C. MC230CR or MC330CR are used.

Gas Powered Model

Steering Servo

Throttle Servo

Receiver

Power Switch

To Receiver

Battery

(CH1)

(CH2)

(CH1)

(BATT)

Connect the battery in accordance with instructions provided with model you are

installing this system in.

Use the R2-BSS-N battery holder to match your application.

If your model has a mechanical type speed control (Servo Driven for electric powered

models) inspect this component for a power supply regulator or voltage dropping Diode.

These device’s will cause a voltage drop to the receiver. Be sure to remove them prior

to installation in your model.

Steering Servo

OFF

E.S.C. Power Switch

Connects to Motor

Connects to Battery

Assembly / Adjustment

Assembly Precautions

Warning

Check Check the receiver, servos, and battery connectors, to be sure they are firmly con-

nected.

If a connector is not fully inserted, vibration may cause the connector to work loose

while the model is operating. This will result in loss of control.

Check Operate each servo horn over its full stroke and check to see that the linkage does not

bind or is not too loose.

Excessive force applied to the servo horn by binding or poor installation may lead to

servo problems and cause result in loss of control.

Prohibited

The receiver antenna may seem long. Do not cut or alter from the original length.

If the receiver antenna length is altered, the receiver will be adversely effected. The

receiver will become considerably more susceptible to interference and high fre-

quency noise which will result in loss of range and control.

Installation Note

(Electric Car's and Boat's)

Isolate the receiver from vibration by attaching to the chassis or mounting plate with

thick double sided tape.

(Gas Powered Car's and Boat's)

Isolate the receiver from vibration by wrapping it in foam rubber or similar type cush-

ioning material. Protect the unit from water damage by placing it in a plastic bag or

waterproof radio box.

The receiver contains precision electronic parts. These parts are vulnerable to vibra-

tion and shock. Any contact with moisture (water or condensation) may cause receiver

malfunction and loss of control.

Installation Note

Keep all devises that may omit high frequency noise, such as motor's, batteries, and

wiring that handle heavy current loads, at least 1/2 inch away from the receiver and

receiver antenna.

High frequency noise will cause a decrease in operating range and could cause loss of

control.

Use genuine Futaba parts only.

Use only genuine Futaba crystal set's as specified in this instruction manual.

The use of other than Futaba crystal set's will result in decrease of range as well as

loss of control. There are separate crystal's for the Transmitter and Receiver, there are

also crystal set's for AM, FM and Dual Conversion FM. Use only single conversion AM

crystal set's with this system.

Changing crystals in 72-75 MHz transmitter is illegal, however 27 MHz is allowable.

(For U.S.A.)

Assembly / Adjustment

Install electronic speed control heat sinks as well as other components that conduct

electricity so they can not come in contact with aluminum, carbon fiber or other mate-

rials that conduct electricity.

If for example the speed control came loose while the model was running and touched

an aluminum chassis a short circuit may occur that would cause irreparable damage to

the system as well as loss of control.

Installation Note

Noise suppression capacitors should be installed on almost all motors.

If the proper capacitors are not installed, high frequency noise will reduce range and

cause loss of control along with various other problems.

Installation Note

Inspect all linkage installations and any point where metal could come in contact with

other metal parts. Make sure these parts do not touch other metal parts under vibra-

tion.

Should a linkage or other metal parts come in contact with other metal parts under

vibration the high frequency noise generated by this contact will cause interference

and possible loss of control.

Caution

Disassembly Prohibited

Do Not disassemble any part of this system that is not specified in the instruction

manual.

Futaba will not be responsible for any damage due to improper disassembly of any

part of the radio control system.

Assembly / Adjustment

Digital Proportional Adjustment

*When making these settings adjustments , do so with the motor disconnected

or the engine not running.

Servo Horn Installation Instructions.

1Connect the receiver, servos, and other components and

then turn on the power switches to transmitter and receiver.

2Be sure the Steering trim and Throttle trim on the transmitter

are at their neutral position .

3At this time install the servo horn in the manner

described in the instruction manual provided

with the model this system will be used in.

Both servos will move to the neutral

position.

Reversing The Servo Operation Direction

Should the servo operate in the opposite direction required

for your application, reverse the rotation with the reversing

switch.

E.S.C. MC230CR / MC330CR

(Reversing Switches)

Throttle

N Side: Normal

R Side: Reverse

Steering

N Side: Normal

R Side: Reverse

(T2PH) (T2PHKA)

NEUTRAL, HIGH, AND BRAKE MAX POINTS SETTINGS

Before setting each point, set the transmitter throttle channel trim to neutral.

Turn on the power in transmitter -> amp order.

Transmitter throttle operation

･Neutral state ･Press the pushbutton switch.

(0.5 secs or longer)

(Confirmation beep sounds)

･Continuous single blink

MC230CR /MC330CR

(Pushbutton switch operation) (Checker LED)

Full High

Full brake

Neutral

point setting

･Full high state ･Press the pushbutton switch.

(Confirmation beep sounds)

･Continuous double blink

･Continuous rapid blink

High point

setting

･Full brake state ･Press the pushbutton switch.

(Confirmation beep sounds.)

･If the LED goes out,

setting is complete.

Brake MAX

point setting

* Since the data is read at the end of setting of all points, the points cannot be set independently.

* If the amp power was turned off during setting, the setting points cannot be memorized. (The previous settings are retained.)

* The confirmation beep sounds only when the motor was connected.

If the LED does not go off

but blinks rapidly, setting

was not performed

normally. Repeat setting

from "Neutral point

setting".

Set the steering angle adjustment function (ATV) to

100% and the ABS function and acceleration function

to OFF using the transmitter throttle channel function.

If the steering angle is too large or the ABS and acceleration

functions are on, erroneous operation may occur.

*When using the ABS function, after setting up

the MC230CR / MC330CR, stop the reverse

function, then turn on the ABS function. If the

ABS function is on, the MC230CR / MC330CR

cannot be set up correctly.

Description Of Functions

Steering Trim

Throttle neutral adjustments can be made moving the throttle

trim to the left or right.

Racers Tip

When using a electronic speed control set the throttle trim

to neutral and make adjustments to the speed control. On

a gas powered model set the trim to neutral and adjust the

linkage to the point where the carburetor is fully closed in

accordance with the engine instruction manual.

Trim Operation and Travel

Trim adjustments will effect the overall servo travel, check the brake side (back-

ward) movement when changes are made.

When trim movement is extreme

If you use most of the trim movement to get the servo to the neutral position , recenter the

servo horn closer to the neutral position and inspect your throttle linkage.

Throttle Trim

Steering neutral adjustments can be made by moving the

Steering trim knob to the left or right.

Racers Tip

When you install a servo always check to be sure the servo is at its neutral position.

Adjust the servo horn hole position and linkage so both are parallel. When a servo

saver is used place it as close to center position as possible. Be sure the steering

trim on the transmitter is at the neutral position.

Trim Operation And Maximum Travel

Changing the trim can effect the overall settings, when adjustments are made with

the trims recheck your installation for maximum servo travel. (Steering EPA right

side and left side).

When Trim usage is extreme

If it takes most of your trim movement to get a servo to

the neutral position, reposition the servo horn or servo

saver on the servo and inspect your linkage installation.

(Drum Type)

(Slide Type)

Carburetor Fully Closed

90°90°

Parallel

Servo Saver

Direct Servo Saver Horn

Throttle Trim

Steering Trim

Servo Reverse

This function reverses the rotation direction of the Steering

and Throttle servos.

When the trim position deviates from the center, the de-

viation will be on the opposite side when the servo is

reversed.

(Reversing Switches)

Throttle

N Side: Normal

R Side: Reverse

Steering

N Side: Normal

R Side: Reverse

(T2PH) (T2PHKA)

Description Of Functions

Throttle EPA (only 2PHKA)

Steering D/R (only 2PHKA)

This function is used to adjust the forward and brake side servo travel. Each direction can

be adjusted independent of each other. Use this feature to set the throttle servo travel.

Use this function to adjust the steering travel of your model. If the model understeers

(push) while cornering, add steering by turning the dial clockwise. When the model

oversteers (loose), take away steering by turning the dial counterclockwise.

Warning

Be sure that your throttle linkage does not

apply excessive force to the servo.

If your linkage installation causes an unreason-

able amount of force to be applied to the servo,

the servo may be damaged and result in loss of

control.

Steering EPA (only 2PHKA)

Use this function to limit the servo movement to the left or right. The servo travel to each

side can be independently adjusted. This feature will compensate for any difference in right

or left turning angles or radius due to the characteristics of your model.

Warning

Be sure that the steering linkage does not

bind or come in contact with any suspen-

sion parts or arms.

If unreasonable force is applied to the servo, the

servo may be damaged and result in loss of

control.

0 side: Travel Minimum

10 side: Travel Maximum

Steering EPA

Left side Right side

0 side: Travel Minimum

10 side: Travel Maximum

Throttle EPA

High side Low side

0 side: Travel Minimum

10 side: Travel Maximum

Steering D/R

Description Of Functions

MC230CR / MC330CR

BRAKE/REVERSE OPERATING INSTRUCTIONS

Operation can be switched to reverse operation by returning the throttle trigger (or throttle stick) from the brake

position to the neutral position.

CANCELLING THE REVERSE FUNCTION

The amp reverse function can be cancelled by the following method so that the model can be used even in races

that prohibit reverse running. (Brake operation only)

While pressing

the pushbutton switch, set the power switch to ON.

MC230CR / MC330CR

(Pushbutton switch operation) (Power switch)

1Reverse

function

cancellation

* When desired, you can enable the cancelled reverse

function by repeating the operation shown at the left.

(The reverse function is switched alternately.)

CHECKER LED DISPLAY

The amp operates linearly in proportion to the amount of forward, reverse, and brake operation. The amp operating

state can be checked with the checker LED as shown below.

PROTECTION CIRCUIT OPERATION

The following protection circuits are built into the MC230CR / MC330CR. When a protection circuit operates,

remove the cause before operating the model again.

Operation

Amp power ON

Checker LED display

(Reverse operation set)

Single blink

(Single confirmation beep)

(Only brake operation set)

Off

Double blink

(Two confirmation beeps)

Blinks. (Confirmation

beep also sounds.)

* Confirmation beep only sounds when the motor was connected.

High point

Neutral point

Brake MAX point

*Becomes brighter nearer the high

point.

*Becomes brighter nearer the

brake MAX point.

*Not used with PCM receivers.

*When the transmitter if OFF, this function is

not performed in environments such that the

servo operates erroneously.

When an overcurrent flows due to an output short circuit, etc., the overcurrent protection circuit automatically

limits the current to protects the FET.

Remove the cause of the short circuit, etc. before operating the model again.

(Amp power left on alarm)



When the transmitter power

was turned off first.

Forward

Reverse

/brake

Overcurrent

protection

When abnormal heating of the FET due to an overload, etc. is detected, the heat protector operates so that

the speed is gradually reduced.

When the FET temperature drops, the heat protector automatically resets. However, remove the cause

of the overheating before operating the model again.

Heat protector

When the Nicd battery voltage drops, this function limits the motor output current and ensures steering operation.

After the speed drops, immediately recover the vehicle.

Low voltage

operation

Reference

Ratings

Transmitter T2PH / T2PHKA

(2 channels, AM transmitter)

Transmitting frequency:

27, 29, 40, 41, 72 or 75 MHz

Modulation method: AM

Power requirement:

12V (penlight battery X 8)

Current drain: 250mA

Receiver R122JE

(2 channels, AM receiver)

Receiving frequency:

27, 29, 40, 41, 72 or 75 MHz

Intermediate frequency: 455kHz

Power requirement: 4.8 - 8.4V

Current drain: 30mA (at 4.8V / No signal)

Size: 47.2X33.3X17.3mm

Weight: 16.6g

Servo S3003

(standard servo)

Power requirement:

4.8V or 6V (common with receiver)

Current drain: 8mA (at 6V / Idle)

Output torque: 3.2kg-cm (at 4.8V)

Operating speed: 0.23sec/60 digree (at 4.8V)

Size: 40.4x19.8x36mm

Weight: 37.2g

E.S.C. MC230CR / MC330CR

(Electronic speed control)

Operating system: Forward, reverse, and brake

operations are all linear.

Power requirement: Nicd battery 6-7 cells

7.2 to 8.4V

PWM frequency: 1.5kHz (fixed)

Setting: One-touch input by pushbutton switch.

Set data is saved to built-in EEPROM.

Current capacity (FET rating):

Forward=90A/200A, reverse=45A/100A

Case size: 27.1x33.3x12.8mm

(excluding protruding parts)

Silicon cord gauge size:

AWG16/AWG14 equivalent

Weight: 44/45g

(including connectors and switches)

BEC voltage: 6.0V

*Specifications and ratings are subject to change without prior notice.

Reference

If your digital proportional R/C set does not operate, its range is short, it intermit-

tently stops operating, or it operates erroneously, take the action shown in the table

below. If this does not correct the trouble, please contact a Futaba dealer.

Check point Check item Action

Transmitter/receiver

battery Dead battery.

Incorrect loading.

Faulty contact con-

nection.

Dirty contacts.

Replace the battery. Charge the nicd

battery.

Reload the batteries in the correct

polarity.

If the contact spring is deformed,

correct it.

Wipe with a dry cloth.

Transmitter antenna Loose.

Not extended to full

length.

Screw in.

Extend fully.

Crystal Disconnected.

Wrong band.

Different from specifi-

cation.

Push in.

Match transmitter/receiver band.

Replace with specified crystal.

Connector connection Incorrect wiring.

Disconnection. Reinsert.

Push in.

Receiver antenna Close to other wiring.

Not cut?

Not bundled?

Separate from other wiring.

Request repair.

Install in accordance with instruction

manual.

Servo linkage Binding or looseness Adjust at the model side.

Motor Noise countermea-

sures. Install a noise absorbing capacitor.

Troubleshooting

FUTABA CORPORATION

Makuhari Techno Garden Bldg., B6F 1-3 Nakase, Mihama-ku, Chiba 261-8555, Japan

Phone: (043) 296-5119 Facsimile: (043) 296-5124

Futaba T2PHKA-75A Radio Control Transmitter User Manual

Futaba Corporation Radio Control Transmitter Users Manual

Users Manual

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