15
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.
ON
MC230CR / MC330CR
(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 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
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 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