FUTABA 4pls User manual

INSTRUCTION MANUAL
R
Digital Proportional
1M23N28302
R/C System

2
Thank you for purchasing a Futaba 4PLS-2.4GHz system.
Before using your 4PLS-2.4GHz system, read this manual carefully in order to use
your R/C set safely.
After reading this manual, store it in a safe place.
Application, Export, and Modification
1. This product may be used for models only. It is not intended for use in any application
other than the control of models for hobby and recreational purposes.
2. Exportation precautions:
(a) When this product is exported from the country of manufacture, its use is to be
approved by the laws governing the country of destination for devices that emit radio
frequencies. If this product is then re-exported to othercountries, it may be subject to
restrictions on such export. Prior approval of the appropriate government authorities
may be required. If you have purchased this product from an exporter outside your
country, and not the authorized Futaba distributor in your country, please contact the
seller immediately to determine if such export regulations have been met.
(b) Use of this product with other than models may be restricted by Export and Trade
Control Regulations, and an application for export approval must be submitted.
0RGL¿FDWLRQDGMXVWPHQWDQGUHSODFHPHQWRISDUWV)XWDEDLVQRWUHVSRQVLEOHIRUXQ-
DXWKRUL]HGPRGL¿FDWLRQDGMXVWPHQWDQGUHSODFHPHQWRISDUWVRQWKLVSURGXFW$Q\VXFK
changes may void the warranty.

3
1RSDUWRIWKLVPDQXDOPD\EHUHSURGXFHGLQDQ\IRUPZLWKRXWSULRUSHUPLVVLRQ
7KHFRQWHQWVRIWKLVPDQXDODUHVXEMHFWWRFKDQJHZLWKRXWSULRUQRWLFH
7KLVPDQXDOKDVEHHQFDUHIXOO\ZULWWHQ3OHDVHZULWHWR)XWDEDLI\RXIHHOWKDWDQ\FRUUHFWLRQVRUFODUL¿FD-
tions should be made.
)XWDEDLVQRWUHVSRQVLEOHIRUWKHXVHRIWKLVSURGXFW
Battery Recycling (for U.S.A.)
The RBRC™SEAL on the (easily removable) nickel-cadmium battery
and nickel-metal-hydride battery contained in Futaba products indicates
that Futaba Corporation of America is voluntarily participating in an in-
dustry program to collect and recycle these batteries at the end of their
useful lives, when taken out of service within the United States. The RBRC™ pro-
gram provides a convenient alternative to placing used nickel-cadmium batteries and
nickel-metal-hydride batteries into the trash or municipal waste system, which is il-
legal in some areas.
You may contact your local recycling center for information on where to return the
VSHQWEDWWHU\3OHDVHFDOO%$77(5<IRULQIRUPDWLRQRQ1L&G1L0+EDWWHU\
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 re-
sources.
NOTE: Our instruction manuals encourage our customers to return spent batteries
to a local recycling center in order to keep a healthy environment.
RBRC™ is a trademark of the Rechargeable Battery Recycling Corporation.

4
Table Of Contents
For Your Safety As Well As That Of Others.........................8
Explanation of Symbols................................................................8
2.4GHz System Precautions.........................................................8
Receiver Mode Precautions .........................................................8
Operation Precautions..................................................................9
Ni-MH/Ni-Cd Battery Handling Precautions ..............................10
Storage And Disposal Precautions ...........................................11
Other Precautions .......................................................................11
Installation ..........................................................................25
Receiver And Servo Connections .............................................25
Installation Safety Precautions ..................................................26
Before Using ......................................................................12
Features ......................................................................................12
Set Contents ...............................................................................14
TransmitterT4PLS........................................................................15
Nomenclature...........................................................................15
Battery Replacement Method...................................................16
When using the optional battery...............................................17
When exchanging for the optional battery................................17
Low Battery Alarm....................................................................18
Power & Display Switch............................................................19
Display When Power Switch Is Turned On ...............................20
LCD Screen Contrast ..............................................................20
Power Off Forgotten Alarm.......................................................20
Digital Trim Operation...............................................................21
Grip Lever Operation................................................................21
Mechanical ATL Adjustment.....................................................22
Wheel & Trigger Tension Adjustment........................................22
Trigger Slide Adjustment ..........................................................23
About Transmitter Antenna And Receiver.................................23
About The Transmitter Antenna................................................23
Receiver Terminology...............................................................24
Receiver Installation.................................................................24
Initial Set-Up .......................................................................29
Preparations (Transmitter)..........................................................29
Receiver Type Check (RX MODE) ..........................................29

5
Before
Using
Function
Map
Functions
For Your Safety
As Well As
That Of Others
Installation
Reference
Initial
Set-Up
Function Map .....................................................................35
Operation Of Screen ...................................................................35
Calling the menu screen ..........................................................35
Selecting items on the menu screen ........................................36
Value of each function and changing the set value .................36
Basic menu Japanese Katakana character display..................37
Function List................................................................................38
Functions ...........................................................................39
Model "MODEL"..........................................................................39
Model Menu Display.................................................................39
Model Selection "SELECT" ....................................................40
Model memory call
Model Copy "COPY" ................................................................41
Model memory copy
Model Reset "RESET" ............................................................42
Model memory reset
Model Name "MDL NAME" ........................................................43
Model memory name & User name, set/modify
Servo Reverse "REVERSE" ........................................................44
Servo operation reversing
Subtrim "SUBTRIM" ...................................................................45
Servo center position fine adjustment
End Point Adjuster "END POINT" .............................................46
End point adjustment
Fail Safe Function "FAIL SAFE".................................................49
Fail safe, battery fail safe function
Exponential Adjustment "EXP"..................................................51
Steering operation curve / Throttle curve adjustment
Servo Speed "SPEED" ................................................................54
Steering/ Throttle servo delay adjustment
Throttle Acceleration "TH ACCEL" ...........................................57
Function which adjusts the movement characteristic from the throttle neutral position
A.B.S. Function "TH A.B.S" .......................................................59
Pulse brake
Channel 3/4 "CH3/CH4"...............................................................63
Channel 3/4 Position
Steering Dual Rate/ Throttle ATL "D/R ATL"..............................63
Steering D/R, Throttle ATL Rate
Receiver Type Change & How To Link ....................................30
Throttle Mode Check................................................................33
Trims Initial Set-Up ...................................................................33

6
Select Switch Dial Function "SW/ DIAL"...................................65
Selection of functions operated by dial, digital trim and switch
Brake Mixing "BRAKE MIX".......................................................68
Front and rear independent brake control for 1/5GP car, etc.
Programmable Mixing "PROG MIX"..........................................70
Programmable mixing between arbitrary channels
4WS Mixing "4WS"......................................................................72
Special mixing used with Crawler and other 4WS type vehicles
Dual ESC Mixing "DUAL ESC"...................................................74
Special mixing used with Crawler and other 4WD type vehicles
Gyro Mixing "GYRO MIX"............................................................76
Can be setting the Futaba car rate gyro.
CPS Mixing "CPS MIX"................................................................78
Controls the Futaba CPS-1 channel power switch.
Throttle Mode "TH MODE".........................................................80
Throttle Servo Neutral Position "SXNT" ...................................80
Throttle servo forward and brake operation proportion setting
Idle-Up "IDLUP" ......................................................................81
Idle up at engine start
Neutral brake "NTBRK" ............................................................82
Neutral brake function
Throttle Off (Engine Cut) "THOFF" .........................................83
Engine cut off by switch
ESC Link Function "MC LINK"...................................................84
Special function, Futaba ESC (MC940CR, MC960CR, MC950CR, MC851C,
MC602C, MC402CR, etc.)
Data Transfer "MDL TRANS".......................................................92
The T4PLS model memory data to another T4PLS
Timer Function "TIMER"............................................................86
Up, Fuel down, or lap timer
Lap List "LAP LIST" ...................................................................92
Lap timer data check
System Functions "SYSTEM" ...................................................93
Liquid crystal screen contrast adjustment
Liquid crystal screen backlighting display mode setup
Backlight display time setup
Backlight brghtness setup
Battery type setting
Buzzer sound tone adjustment
The power off forgotten alarm setting
Item which displays the basic menu screen in katakana characters for Japanese use
HOME screen display mode setting

7
Before
Using
Function
Map
Functions
For Your Safety
As Well As
That Of Others
Installation
Reference
Initial
Set-Up
Reference .........................................................................115
Ratings ......................................................................................115
Warning Displays .....................................................................100
Optional Parts ...........................................................................102
When requesting repair ............................................................102
Adjuster "ADJUSTER" ................................................................97
Steering wheel and throttle trigger correction
Telemetry "TELEMETRY".........................................................107
Telemetry/ Log screen Map....................................................108
Telemetry Function ON/OFF ..................................................109
Telemetry Sensor Setting .......................................................110
Log Setting, Start/ Stop..........................................................112
Log Data List ..........................................................................114

󾾝Warning
󾾝Caution
￸When using the T4PLS in the T-FHSS (HIGH) and S-FHSS (HIGH) mode, always use it under the
following conditions:
Servos : Futaba digital servo (including BLS Series brushless servos)
Receiver’s battery :Matched to the ratings of the receiver and connected digital servo (dry cell battery cannot be used).
Transmitter mode :
RX MODE (See p.29 for setting method.)
Under other conditions, the set will not operate, or the specified performance will not be displayed even if it operates.
In addition, it may cause servo trouble. Futaba will not be responsible for damage, etc. caused by combination with the
products of other companies.
In addition, the FSU Fail Safe Unit cannot be used because the system is different. Use the fail safe function of the trans-
mitter.
￸When using analog servos, always switch the T4PLS servo response to the "NORM" mode.
Transmitter mode :" T-FHSS(NORM)", "T-FHSS(NORM)"and FHSS mode (See p.29 for setting method.)
Receiver’s battery :Matched to the ratings of the receiver and connected servo (dry cell battery cannot be used).
The set cannot operate in the "HIGH" mode. Operation in this mode will cause trouble with the servo and other equipment.
Digital servos (including BLS Series brushless servos) can also be used in the "NORM" mode.
8
For Your Safety As Well As That Of Others
For Your Safety As Well As That Of Others
Use this product in a safe manner. Please observe the following safety precautions at all
times.
Explanation of Symbols
The parts of this manual indicated by the following symbols are extremely important
and must be observed.
󾾝Danger
Indicates procedures which may lead to dangerous situations and could
cause death or serious injury as well as superficial injury and physical
damage.
Indicates procedures that may not cause serious injury, but could lead to
physical damage.
Symbols: : Prohibited ￸: Mandatory
Indicates a procedure which could lead to a dangerous situation and may
cause death or serious injury if ignored and not performed properly.
󾾝Warning
󾾝Caution
Symbols Explanation
2.4GHz System Precautions
￸Special attention should be paid before turning on the system while other cars are running or
other airplanes are flying because the 2.4GHz RC system could potentially affect them.
￸Be sure to set the Fail Safe function.
Receiver Mode Precautions

󾾝Warning
9
For Your Safety As Well As That Of Others

Do not operate outdoors on rainy days, run through puddles of water or use when visibility is limited.
Should any type of moisture (water or snow) enter any component of the system, erratic operation and loss of control
may occur.
Do not operate in the following places.
-Near other sites where other radio control activity may occur.
-Near people or roads.
-On any pond when passenger boats are present.
-Near high tension power lines or communication broadcasting antennas.
Interference could cause loss of control. Improper installation of your Radio Control System in your model could result in
serious injury.
Operation Precautions
Do not operate this R/C system when you are tired, not feeling well or under the influence of al-
cohol or drugs.
Your judgment is impaired and could result in a dangerous situation that may cause serious injury to yourself as well as
others.
Do not touch the engine, motor, speed control or any part of the model that will generate heat
while the model is operating or immediately after its use.
These parts may be very hot and can cause serious burns.
￸Always perform an operating range check prior to use.
Problems with the radio control system as well as improper installation in a model could cause loss of control.
(Simple range test method)
Have a friend hold the model, or clamp it down or place it where the wheels or prop cannot come in contact with
any object. Walk away and check to see if the servos follow the movement of the controls on the transmitter. Should
you notice any abnormal operation, do not operate the model. Also check to be sure the model memory matches the
model in use.
￸Turning on the power switches.
Always check the throttle trigger on the transmitter to be sure it is at the neutral position.
1. Turn on the transmitter power switch.
2. Turn on the receiver or speed control power switch.
Turning off the power switches
Always be sure the engine is not running or the motor is stopped.
1. Turn off the receiver or speed control power switch.
2. Then turn off the transmitter power switch.
If the power switches are turned off in the opposite order, the model may unexpectedly run out of control and cause a
very dangerous situation.
￸When making adjustments to the model, do so with the engine not running or the motor discon-
nected.
You may unexpectedly lose control and create a dangerous situation.

󾾝Caution
󾾝Warning
󾾝Caution
10
For Your Safety As Well As That Of Others
(Only when NiMH/NiCd batteries are used)
NiMH / NiCd Battery Handling Precautions
Never plug the charger into an outlet of other than the indicated voltage.
Plugging the charger into the wrong outlet could result in an explosion or fire.
Never insert or remove the charger while your hands are wet.
You may get an electric shock.
Do not use the transmitter's battery, HT5F1700B, as the receiver's battery.
Since the transmitter's battery has an overload protection circuit, the output power will be shut down when the high cur-
rent load is applied. This may result in runaway or fatal crash.
Do not use commercial AA size NiCd and NiMH batteries.
Quick charging may cause the battery contacts to overheat and damage the battery holder.
Do not short circuit the battery terminals.
A short circuit across the battery terminals may cause abnormal heating, fire and burns.
Do not drop the battery or expose it to strong shocks or vibrations.
The battery may short circuit and overheat; electrolyte may leak out and cause burns or chemical damage.
￸When the model is not being used, always remove or disconnect the battery.
Leaving the battery connected could create a dangerous situation if someone accidentally turns on the receiver power
switch. Loss of control could occur.
(Fail safe function)
￸Before running (cruising), check the fail safe function.
Check Method; Before starting the engine, check the fail safe function as follows:
1) Turn on the transmitter and receiver power switches.
2) Wait at least one minute, then turn off the transmitter power switch. (The transmitter automatically transfers the fail
safe data to the receiver every minute.)
3) Check if the fail safe function moves the servos to the preset position when reception fails.
The fail safe function is a safety feature that minimizes set damage by moving the servos to a preset position when
reception fails. However, if set to a dangerous position, it has the opposite effect. When the reverse function was
used to change the operating direction of a servo, the fail safe function must be reset.
Setting example: Throttle idle or brake position
￸Always check to be sure your batteries have been charged prior to operating the model.
Should the battery go dead while the model is operating, loss of control will occur and create a very dangerous situation.
￸To recharge the transmitter battery, use the special charger made for this purpose.
Overcharging could cause the battery to overheat, leak or explode. This may lead to fire, burns, loss of sight and many
other types of injuries.

󾾝Warning
󾾝Warning
󾾝Caution
11
For Your Safety As Well As That Of Others
Storage and Disposal Precautions
Do not leave the radio system or models within the reach of small children.
A small child may accidentally operate the system. This could cause a dangerous situation and injuries. Ni-Cd batteries
can be very dangerous when mishandled and cause chemical damage.
Do not throw NiMH/NiCd batteries into a fire. Do not expose batteries to extreme heat. Also do
not disassemble or modify a battery pack.
Overheating and breakage will cause the electrolyte to leak from the cells and cause skin burns, loss of sight, and other
injuries.
￸
When the system will not be used for any length of time, store the system with HT5F1700B batteries
in a discharged state. Be sure to recharge the batteries prior to the next time the system is used.
If the batteries are repeatedly recharged in a slightly discharged state, the memory effect of the Ni-MH/Ni-Cd battery
may considerably reduce the capacity . A reduction in operating time will occur even when the batteries are charged for
the recommended time. (After discharge to 1cell E.V.=1V)
<NiMH/NiCd Battery Electrolyte>
The electrolyte in NiCd/NiMH 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, and seek medical attention at once. The electrolyte can cause
blindness. If electrolyte comes in contact with your skin or clothes, wash with water immediately.
Do not store your R/C system in the following places.
- Where it is extremely hot or cold.
- Where the system will be exposed to direct sunlight.
- Where the humidity is high.
- Where vibration is prevalent.
- Where dust is prevalent.
- Where the system would be exposed to steam and condensation.
Storing your R/C system under adverse conditions could cause deforma-
tion and numerous problems with operation.
￸If the system will not be used
for a long period of time, re-
move the batteries from the
transmitter and model and
store in a cool, dry place.
If the batteries are left in the trans-
mitter, electrolyte may leak and dam-
age the transmitter. This applies to
the model also. Remove the batteries
from it also to prevent damage.
Do not expose plastic parts to fuel, motor spray, waste oil or exhaust.
The fuel, motor spray, waste oil and exhaust will penetrate and damage the plastic.
￸Always use only genuine Futaba transmitters, receivers, servos, ESCs (electronic speed con-
trols), NiMH/NiCd batteries and other optional accessories.
Futaba will not be responsible for problems caused by the use of other than genuine Futaba parts. Use the parts speci-
fied in the instruction manual and catalog.
Other Precautions
<NiMH/NiCd/Li-ion Battery Recycling>
A used battery is a valuable resource. Insulate the battery terminals and dispose of the battery by taking it to a battery recycling center.
￸Always keep the charger disconnected from the outlet while it is not in use.

12
Before Using
-Telemetry system
The T4PLS transmitter has adopted the newly developed bidirectional communication sys-
tem "T-FHSS"
-2.4GHzSS (Spread Spectrum) radio communication system
Frequency channel setting is unnecessary: Channel shifting takes place within the 2.4GHz
band automatically. This system minimizes the interference from other 2.4GHz systems.
-Model memory for 40 models
Model names can use up to 10 letters, numbers, and symbols, so that logical names may be
used. A model memory with different setups can be created by using the model copy func-
tion.
- Menu Selection
The setup screens are called from menu screens. The menu screen can be selected from
among 2 levels (LEVEL1/LEVEL2).
-Brake mixing for large cars (BRAKE)
Brake mixing of the front and rear wheels of 1/5GP and other large cars can be adjusted
independently.
-4WS mixing for crawlers and other 4WS type (4WS MIX)
This function can be used with crawlers and other 4WS type vehicles.
-Dual ESCs mixing for crawlers cars (DUAL ESC)
ESC at the front and rear are controlled independently.
-Gyro mixing (GYRO MIX)
The sensitivity of Futaba car rate gyros can be adjusted from the T4PKSR.
-CPS-1 mixing (CPS MIX)
/('OLJKWLQJDQGÀDVKLQJFRQWUROXVLQJRXU&36FKDQQHOSRZHUVZLWFKFDQEHPDWFKHGWR
steering and throttle operation by switch only.
-Anti-skid braking system (A.B.S)
This function applies the brakes so that the tires of gasoline engine cars, etc. do not lose
their grip on the road even when braking at corners.
-Throttle acceleration (ACCFW/ACCBK)
Gasoline engine cars have a time lag before the clutch and brakes become effective.
The throttle acceleration function reduces this time lag.
-Throttle speed (SPEED)
Sudden trigger operation on a slippery road surface will only cause the tires to spin and the
model to not accelerate smoothly. By setting the throttle speed function, operation can be
performed smoothly and easily. It also suppresses battery consumption.
-Steering speed (SPEED)
When you sense that the steering servo is too fast, etc., the servo operating speed (direction
that suppresses the maximum speed) can be adjusted.
-Racing timer (TIMER)
Before Using
Features

13
Before Using
The lap timer can record 100 lap times and total time. The timer can also be started auto-
matically by trigger operation. The race time and audible alarm can be set.
Re-/fueling time are indicated by an audible alarm. An up timer is also provided.
-Digital trim
The current trim position is displayed on the LCD screen. The operating amount of 1 step
can also be adjusted.
Trim operation has no effect on the maximum travel of the steering and throttle servos.
-Function select trim/ dial function (TRIM DIAL)
This function assigns functions to dials (digital trim, digital dial). The step amount and
operating direction can also be adjusted. Trim positioning at each model call is unnecessary
because all the dials are digital.
-Function select switch function (SWTCH)
This function assigns functions to 2 switches. The operating direction can also be set.
-ESC-Link function (MC-LINK)
This is a dedicated function which allows setting of the contents of the Link software which
makes possible Futaba speed controller (ESC), MC950CR, MC850C, MC851C, MC602C,
MC402CR, etc. variable frequency and other data changes by T4PLS.
-Trigger position can be changed
The position of the throttle trigger can be moved forward and backward.
-Tension adjustment function
The tension of the steering wheel & throttle trigger springs can be adjusted from the outside.
-Mechanical ATL Adjustment
Make this adjustment when you want to decrease the total travel of the brake (push) side of
the throttle trigger.
-Display switch
Display switch allows function setup without transmitting.

14
Before Using
$IWHURSHQLQJWKHER[¿UVWFKHFNLIWKHFRQWHQWVFRQIRUPWRWKHIROORZLQJ7KHFRQWHQWV
depend on the set as shown below.
Set Contents
Transmitter T4PLS
Receiver R304SB
Miscellaneous
Dry battery holder
*Installed in transmitter.
Receiver switch
Mini screwdriver
* It is used for R304SB.
Instruction manual
- If any of the set contents are missing, or you have any questions, please contact
your dealer.
󾾝Caution
￸Always use only genuine Futaba transmitters, receivers, servos, ESCs (electronic speed con-
trols), NiMH, NiCd, Li-ion batteries and other optional accessories.
Futaba will not be responsible for problems caused by the use of other than Futaba genuine parts. Use the parts speci-
fied in the instruction manual and catalog.
￸When using the T4PLS in the T-FHSS (HIGH) and S-FHSS (HIGH) mode, always use it under the
following conditions:
Servos : Futaba digital servo (including BLS Series brushless servos)
Receiver’s battery :Matched to the ratings of the receiver and connected digital servo (dry cell battery cannot be used).
Transmitter mode :
RX MODE (See p.29 for setting method.)
Under other conditions, the set will not operate, or the specified performance will not be displayed even if it operates.
In addition, it may cause servo trouble. Futaba will not be responsible for damage, etc. caused by combination with the
products of other companies.
In addition, the FSU Fail Safe Unit cannot be used because the system is different. Use the fail safe function of the trans-
mitter.
￸When using analog servos, always switch the T4PLS servo response to the "NORM" mode.
Transmitter mode :" T-FHSS(NORM)", "T-FHSS(NORM)"and FHSS mode (See p.29 for setting method.)
Receiver’s battery :Matched to the ratings of the receiver and connected servo (dry cell battery cannot be used).
The set cannot operate in the "HIGH" mode. Operation in this mode will cause trouble with the servo and other equipment.
Digital servos (including BLS Series brushless servos) can also be used in the "NORM" mode.

15
Before Using
7KHVZLWFKHVGLDODQGWULPPHUVLQWKH¿JXUHDUHVKRZQLQWKHLQLWLDOVHWWLQJSRVLWLRQ
Antenna
Digital Dial 1 (DL1)
(default CH4)
Mechanical ATL
adjusting screw
Throttle trigger
Power&Display switch
Digital Trim 2 (DT2)
(default throttle trim)
Digital Trim 4 (DT4)
(default ATL)
Digital Trim 3 (DT3)
(default dual rate)
Grip Handle
Digital Trim1 (DT1)
(default steering trim)
Steering wheel
Push switch (SW1)
Slide switch (SW2)
(default CH3)
LCD screen
Edit buttons
LED
Nomenclature
Transmitter T4PLS
Wheel tension
adjusting screw
Trigger tension
adjusting screw
Battery cover
Trigger slide
adjusting screw

Battery cover
Slide battery cover while pressing here.
16
Before Using
Battery Replacement Method
1Remove the battery cover from the transmitter
by sliding it in the direction 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.
Battery Replacement Method (4 AA Size Batteries)
Load the four batteries in accordance with the po-
larity markings on the battery holder.
Check:
Disposal of the Dry Cell Batteries:
Turn the power switch on the transmitter to the ON position. Check the battery
voltage display on the LCD screen.If the voltage is low, check the batteries for in-
VXI¿FLHQWFRQWDFWLQWKHFDVHRULQFRUUHFWEDWWHU\SRODULW\
The method to dispose of used dry cell batteries depends on the area in which you
reside. Dispose of the batteries in accordance with the regulations for your area.
󾾝Caution
Do not use commercial AA size NiCd and NiMH batteries.
Quick charging may cause the battery contacts to overheat and damage the bat-
tery holder.
￸
Insert the batteries in the correct polarity.
If the polarity is incorrect, the transmitter may be damaged.
￸When the transmitter is not in use, remove the batteries.
If the battery electrolyte leaks, wipe off the case and contacts.
Never try to recharge a dry cell battery.
The transmitter may be damaged or the battery electrolyte may leak or the battery may break.

AC outlet
Charger
Transmitter
charging LED
To transmitter
charging jack
To receiver
Ni-Cd battery
󾾝Caution
￸When closing the battery cover, be
careful that the battery cover does
not pinch the battery lead wires.
Shorting of the battery lead wires may lead
to fire and abnormal heating and cause
burns or fire disaster.
17
Before Using
Battery Replacement Method
1Refer to the previous description and remove the
transmitter battery cover.
2After removing the dry cell battery box from the
transmitter, disconnect the connector.
3Insert the connector of the new battery and load
the new battery into the transmitter.
4Finish by installing the battery cover.
Over current protection
Charging jack
The transmitter charging circuit is equipped with an over cur-
rent protection circuit (1.0A). If the battery is charged with a
quick charger for other than digital proportional R/C sets, it
may not be fully charged.
The charging time when charging the HT5F1800B battery
with the optional special charger is approximately 15 hours.
However, when the battery has not been used for some time,
repeat charging 2 or 3 times to activate the battery.
Charge of a NiMH battery
(Example: When using the HT5F1800B with the special charger)
1Plug the transmitter cord of the special charger in-
to the charging jack on the rear of the transmitter.
2Plug the charger into an AC outlet.
3Check that the charging LED lights.
When exchanging for the optional battery
The HT5F1700B/1800B is 5-cells, so, when charging the HT-
5F1700B battery with Futaba CR-2000 charger, you have to
use the RX output side.
When using Futaba CR-2000
When using the optional battery
When using an optional rechargeable battery, replace the battery as described below.
-Always use the optional HT5F1700B or FT2F2100B rechargeable battery.
-When the transmitter will not be used for a long time, remove the battery.

󾾝Warning
󾾝Caution
18
Before Using
Never plug it into an outlet of other than the indicated voltage.
Plugging the charger into the wrong outlet could result in an explosion or fire.
Do not insert and remove the charger when your hands are wet.
It may cause an electric shock.
￸Always use the special charger or a quick charger for digital proportional R/C sets to charge a
digital proportional R/C set Ni-MH battery.
Overcharging a Ni-MH battery can result in burns, fire, injuries, or loss of sight due to overheating, breakage, or electro-
lyte leakage.
￸When the charger is not in use, disconnect it from the AC outlet.
Do this to prevent accidents and to avoid overheating.
Low Battery Alarm
If the transmitter battery voltage drops below the usable range, an audible
alarm will sound and "BATTERY LOW VOLTAGE" will be displayed on
the LCD screen. If the battery goes dead while running (cruising), you will
lose control of the vehicle (boat). Therefore, retrieve the vehicle (boat) im-
mediately and cease operation.
Because the low battery alarm voltage of a dry cell battery is different from
that of a rechargeable battery pack (genuine Futaba option), the type of
power source used must be set by system setting (P101).
󾾝Warning
￸When a low battery alarm is generated, cease operation immediately and re-
trieve the model.
If the battery goes dead while in operation, you will lose control of the model.
Charge of a LiFe battery
(Example: When using the
FT2F1700B/2100B
with the special charger)
1A LiFebattery is removed from T4PLS.
22P connector is removed from T4PLS.
3Balance charge is carried out from the charger on-
ly for LiFe.
Charge the optional FT2F1700B/2100B (LiFe) battery with
the special charger in accordance with the instruction manual
supplied.

OFF
DISP
Radio waves are not being transmitted
PWR ON
Radio waves are being transmitted
19
Before Using
Power & Display Switch
The power switch and display switch of the T4PLS are integrated. In the PWR ON
mode, radio waves are transmitted and in the DISP mode, model data, settings can be
checked without transmitting radio waves.
In addition, some setting menus may only be displayed in the DISP mode.
Precautions when turning the power switch on and off.
- When the data is changed using the edit keys or trim levers, wait at least two seconds
before turning off the power. If the power is turned off within two seconds after the data
is changed, the new data will not be written to memory.
- If the power switch is quickly switched from the DISP mode to the PW
ON mode or vice versa, the switch error shown at the right may be gener-
ated. If this occurs, cycle the power.

Battery voltage display
ST :Steering trim display
TH :Throttle trim display
D/R :Steering D/R display
ATL :Throttle ATL display
Power switch turned on
%HHSFRQ¿UPDWLRQVRXQG LVJHQHUDWHGDQGWKH
HOME screen shown below appears.
Display when power switch is turned on
Model name (10 characters)
The current receiver mode is
displayed.
Telemetry function :ON/OFF
Receiver -> Transmitter:
The reception strength is shown.
Servo operation of each
channel can be checked.
Model number
Telemetry data
20
Before Using
LCD Screen Contrast
The LCD screen contrast can be adjusted. (For more information, see page 101.)
Caution
Do not adjust the contrast so that the LCD is too bright or too dark.
When the display cannot be read due to a temperature change, data cannot be set.
Power Off Forgotten Alarm
When the steering wheel, throttle trigger, push switch, or edit button are not operated
for 10 minutes (default), an alarm sounds and "NOT OPERATED FOR A
LONG TIME" is displayed on the LCD screen.
When the steering wheel, throttle trigger, push switch, or edit button are
operated, the alarm is reset. If the system is not to be used, turn off the
power.
The function can be deactivated at the system menu (p.101).