I am a noob when it comes to electronics and circuits etc.
I have an ARES AMOEBA and the tamiya connector has fully detached. I cannot remember which way on it goes and the wires are not labelled positive and negative(silver wiring).
If i put it on the wrong way will it cause damage to the guns electronics etc?
The amoeba has an electronic trigger so Im just worried about re-attaching it and breaking something.
If the polarity is wrong the motor will try to spin backwards. In doing this it will either latch on the anti reversal and burn out your connectors. Or eat your gearbox internals.
Best bet is to do a diagnostic from the motor with a multi meter. The motor will have a pole marker on the plastic cap. Or pull the whole box and trace the cables manually. Just make sure you mark the motor and the cables if they don't have any colour markers.
If you get it wrong it will cost you money.
If that sounds like a ball ache, or you don't understand send the gun to a proper tech.
Because the gun is not yours tell the owner what has happened. It's a small repair, but if done wrong it will destroy a lot of valuable and expensive parts.
If the polarity is wrong the motor will try to spin backwards. In doing this it will either latch on the anti reversal and burn out your connectors. Or eat your gearbox internals.
Best bet is to do a diagnostic from the motor with a multi meter. The motor will have a pole marker on the plastic cap. Or pull the whole box and trace the cables manually. Just make sure you mark the motor and the cables if they don't have any colour markers.
If you get it wrong it will cost you money.
If that sounds like a ball ache, or you don't understand send the gun to a proper tech.
Because the gun is not yours tell the owner what has happened. It's a small repair, but if done wrong it will destroy a lot of valuable and expensive parts.
It looks like a home made loom, So chances are they can fix it with minimal fuss. If they can't sending it to a tech and paying the repair fee is a damn sight cheaper than a new gearbox and loom. Depending on upgrades you could be looking at anywhere from a £50-200 repair if you get it wrong.
The owner is a friend of mine but he is absolutely clueless when it comes to anything technical. This is something I think I can do so I may invest in multimeter or just disasemble gearbox like you said. Multimeter sounds like the easiest option to me though.
If you do go the multimeter route then it's normally the red/+tive terminal on the motor that is direct to the battery.
Dropping the probes on the red motor connector and using a continuity test to the broken leads should give you only 1 cable with a reading. Looking at the wireing for the ETU this also looks to be the case although images are generally best avoided as a source of cannon information.
You can see in the image the red is soldered onto a single point as a passthrough. The black is harder to see but there are 2 contact points for it (one is hidden by wires under the middle mosfet). The black terminal should always be a dead circuit it needs power from the +tive side to open the mosfet gate and complete the circuit.
Because it's a v2 gearbox it will be impossible to visually tell cables apart as they sit inside the gearbox. Some gearboxes like V3's have all external wiring and are much easier to diagnose.
You won't need a fancy multimeter. Provided it has resistance (ohms) or a diode test you can check continuity. A £10 maplin one is more than enough.
Thanks for all the advice. Definitely going to take my time and be careful on this one. I presume the safest option would be to dissemble gearbox and trace the wires because of the risk that some circuits can show resistance or continuity through the pcb circuitry?
