More often than not the problem is so simple that no one has thought of it!
To that end all of the most common problems that will cause your CP2 not to work will be posted here shortly only moderators will be allowed to edit this post so any tips and fixes that you have please post as a new topic with subject CP2 fix or send me a PM, and it will be transferred here, that way we'll have a clean clear list of all of the most common problems and links to the post that will explain it better or simply for more information.
Your post will then be deleted and credit given to you here.
Thanks
Joe
Receiver will not calibrate
Make sure your throttle is set to zero then disconnect the helicopter battery then reconnect it and try again.
Ensure that your crystal is in fact installed in the receiver and secured, this one is very common especially when a new receiver is bought!
Make sure that the crystals in both the transmitter and receiver are the same.
Check that both pins on the crystal are tightly in place bend outwards slightly, if loose ( CCourtesy of Stephen (Bigga)
Batteries in the transmitter too weak
Make sure your transmitter has the following settings:-
AIL =down
ELE = up
THR=down
RUD=up
Your 4 in 1 ( receiver) has burnt out.
Your may have a mode 1 transmitter when you think it is mode 2 (CHECK HERE)
Receiver will still not calibrate: Thanks to cozzykim
1/ Check that the Normal/Idle Up switch on the left of the Tx is set to [Normal] which is - pushed away from you
2/ Check the throttle servo reverser switch, third from the left, is set correctly.
If it's the wrong way round the receiver will calibrate O.K. with the throttle and trim set to maximum.
Erratic flying behaviour
This one covers a wide spectrum, from electrical to mechanical.
Electrical:-
Loose receiver connection
Loose, dry joint or disconnected antenna wire entering the receiver
Weak transmitter or helicopter batteries
Loose crystal in transmitter or helicopter
Loose antenna wire inside of your transmitter
Interference from another RC transmitter
You are reaching the end of your transmitters range.
Your receiver aerial is coiled or too close to a servo or motor Thanks to Geoff
Interference from wireless routers, (indoors) Again thanks to Geoff
My CP2 won't lift off!
Make sure your main rotor blades are rotating clockwise as viewed from above if not Check all of your connections to your 4 in 1 ( receiver )
You may think they are correctly wired but if you have bought a new one or disconnected any of the connectors it is very easy to connect to the wrong connector (CHECK HERE)
Heli wont lift off, battery isn't fully charged/damaged, or battery and motor connectors have come loose/not properly attached Thanks to Little and Large
Your transmitters antenna/ aerial is NOT fully extended, quite common when you are flying outside for the first time!
Tail/Gyro not responding during flight
it is important to let the 4 in 1 finish calibrating when the battery is connected, do not move the model whilst the calibration is in process as this can lead to tail control problems. Again thanks to Little and Large
My main blades won't rotate
Check that the motor cables are firmly pushed into their connectors on the receiver. (Picture Pictures here
You may have broken the main drive shaft.
Check to see if the pin is intact that is situated just below the blade clamps, if so replace with similar wire ( paper clip)
Your main motor may be burnt out, change over the motor connectors to eliminate the main motor. Pictures Here
Your receiver may be faulty.
My tail motor has stopped spinning
Check that the connector is firmly in place in the receiver use your hands to check and not your eyes!
Check the wires on the tail motor are firmly attached.
Tail motor has burnt out.
The motor output for the tail motor has been damaged.
Worn out drive wheel
Check that the drive wheel is actually in contact with the motor teeth.
For a picture guide of various components Click Here



