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25

2HR Functions

MC231CR/MC331CR Function

BRAKE/REVERSE OPERATING INSTRUCTIONS

Operation can be switched to reverse operation by returning the 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.

ON

MC231CR/MC331CR

(Pushbutton switch operation)

(Power switch)

1

Reverse 

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 MC231CR. 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

On

On

Off

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 is 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 protect 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/NiMH 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

Summary of Contents for 2HR

Page 1: ...R Digital Proportional 1M23N30402 R C System INSTRUCTION MANUAL 2 Channel FHSS 2 4GHz Radio control system for Car R C System...

Page 2: ...Instruction manual...

Page 3: ...RI SDUWV RQ 7 5 Q VXFK FKDQJHV PD YRLG WKH ZDUUDQW KDQJHV RU PRGL FDWLRQV QRW H SUHVVO DSSURYHG E WKH SDUW UHVSRQVLEOH IRU FRPSOLDQFH FRXOG YRLG WKH user s authority to operate the equipment Complian...

Page 4: ...24 Servo Reversing 24 MC231CR MC331CR 25 Changing the Neutral Position 27 Modifying the Throttle Stick to a Ratchet Type 28 Reference 29 Ratings 29 Troubleshooting 30 Error Displays 31 When Requestin...

Page 5: ...imes Running behind large objects is not suggested Doing so may result in the reduction of the quality of the radio frequency link to the model For your safety as well as that of others please read th...

Page 6: ...ould you lose sight of the model a collision or other dangerous situation may occur Do not operate near people or roads Do not operate on any pond when boats are present Do not operate near high tensi...

Page 7: ...it from the outlet This will prevent accidents overheating and short circuits Storage and Disposal Safety Precautions WARNING At the end of a day s operation store the system with Ni Cd Ni MH battery...

Page 8: ...d damage the plastic Ni Cd Ni MH Battery Electrolyte The electrolyte in Ni Cd Ni MH batteries is a strong alkali Should you get even the smallest amount of the electrolyte in your eyes DO NOT RUB Wash...

Page 9: ...x1 Switch SSW GS x1 Miscellaneous Mini Screwdriver Servo mounting hardware and servo horns only w servo set Connectors B Power connector 2 Throttle Servo CH2 1 Steering Servo CH1 Link Switch LED Servo...

Page 10: ...tion should not be pointed directly at the model Grip Handle Throttle Stick Steering Dual Rate Dial D R Antenna Built in Battery cover Steering Stick Power Switch When slide upward the power is turned...

Page 11: ...ry cover The battery cover may pop up and get damage on your transmitter body without pressing it when it is removed Hold the battery cover while removing it from the transmitter body so that it may n...

Page 12: ...13 Before Operation Inside the battery cover Battery Box 4 AA size dry batteries Throttle Servo Reversing Switch Steering Servo Reversing Switch...

Page 13: ...are loaded incor rectly 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...

Page 14: ...s to the receiver throttle channel Miniature screwdriver Accessory Use to press the pushbutton switch Checker LED Power switch Pushbutton switch MC231CR MC331CR Orange Blue Black Red Applicable motors...

Page 15: ...n on the receiver or speed control power switch Always be sure the motor is stopped 1 Turn o the receiver or speed control power switch 2 Then turn o the transmitter power switch ON ON OFF OFF If the...

Page 16: ...17 Before Operation Turn model left Forward Stop Backward Turn model right Steering Stick Control Throttle Stick Control...

Page 17: ...s to Motor Connects to Battery Gas Powered Model Receiver Antenna Installation Install the R202GF receiver on the car as follows Note The operating range may become shorter depending on where the rece...

Page 18: ...motors batteries and wiring that handles heavy current loads at least 1 2 inch away from the receiver and the receiver antenna High frequency noise will cause a decrease in operating range and could c...

Page 19: ...Turn on the transmitter and the receiver 3Push and hold the Link Switch of the receiver 4When the link is complete the LED in the receiver changes to solid green Please refer the table below for LED s...

Page 20: ...receiver at braking position This function moves the throttle servo to a preset position when the receiver cannot receive the signal from the transmitter for some reason W h e n t h e s i g n a l f r...

Page 21: ...ince 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 sett...

Page 22: ...nd 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 sur...

Page 23: ...servo is reversed WARNING Be sure that the steering linkage does not bind or come in contact with any suspension parts or arms If unreasonable force is applied to the servo the servo may be damaged an...

Page 24: ...ation set Single blink Single confirmation beep Only brake operation set Off On On Off Off Double blink Two confirmation beeps Blinks Confirmation beep also sounds Confirmation beep only sounds when t...

Page 25: ...d up the speed increases Brake Throttle stick is turned down the brake works Reverse Operation can be switched to reverse operation by returning the throttle stick from the brake position to the neutr...

Page 26: ...the setting lever to the 1 1 side with the stick lever pushed to the HI side Other wise the setting lever cannot move 2 1 1 1 Throttle Stick Setting Lever 1 1 2 1 Remove the four transmitter rear case...

Page 27: ...tall the ratchet plate with the screw Remove the spring and swing arm A throttle stick returns neutrally by a spring A throttle stick doesn t return neutrally Throttle Stick Remove the four transmitte...

Page 28: ...at 6V Size 40 4x19 8x36mm 1 59x0 78x1 42in Weight 37 2g 1 31oz E S C MC231CR MC331CR Electronic speed control Operating system Forward reverse and brake operations are all linear Power requirement Ni...

Page 29: ...ntacts are bent and not making good contact Dirty contacts Clean the contacts and check for corrosion Receiver Battery Dead battery Replace or recharge Wrong polarity Check connections Antenna Near ot...

Page 30: ...nd when the problem occurred R C System Send transmitter receiver and servos Model Type of model brand name and model number or kit name Detailed packing list Make a list of all items sent in for repa...

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