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I have installed a Futaba Attack 2ER receiver plus 2 servos in my fireboat. Both lights are 'on' on the transmitter, and there is the correct voltage coming from the battery supply to the receiver. When I plug in the servo ,the servo moves a bit. However, the transmitter has no effect on the servos. I have checked and rechecked the connections. The aerial was cut, but I have joined the parts together temporarily. Can anyone give me any advice? Cheers Hughie
Hi Hughie I am assuming the set was working before you cut the aerial? You did bare the wires and twist the copper wires together? If it was, have you changed anything else? Did you remove the crystals and are they in the correct place ie Tx in Tx? I have just repaired a 27Mhz set and the TX crystal had failed for no apparent reason. Replacing with another crystal fixed the problem. If you have or can borrow another set of crystals at the right frequency and type you can see if they work. Perhaps a local shop may be able to help without you having to buy? From your description the power is ok, the servo moves so is plugged in the correct way. You have used one of the channel sockets and not the battery socket for the servo? Let me know how you get on Cheers dave
Hi Dave Thanks for your reply. No, I didn't try the RC before the aerial got broken. Yes, I have stripped the wire and twisted them together, but haven' t soldered them as yet. I haven't put the battery plug in the servos or vice versa.I will try what you suggest and let you know how I got on. Cheers Hughie👍
Hi Hughie It's possible then that the problem was pre the aerial cutting. Sorry if I was teaching you to suck eggs but it is easier to suggest ways forward if all the basics have been covered. If the set was working some time in the past then I would check the crystals. If you can move any of the pins chances are it is broken. Over time crystals can deteriorate for no apparent reason as the internal crystal is encased in a glass vacuum and uses very fine wires for connectors. I appreciate you wish to keep the existing set but if you do have to buy crystals it may be worth considering a 2.4 combo set (Tx/Rx no servos) as the cost may not be much different and will work with your servos. Cheers Dave
Doug We don't know that it is a crystal problem. If what you say is true about cost then replacing with a 2.4 set is still worth considering. I do agree however that EU tarrifs make items we buy in Europe dearer than the rest of the world.
Thanks to all of you who gave me some advice. I found out that The crystal on the transmitter was missing. It was in the box, so plug in and great joy! Tears of happiness. I bought this set years ago in Dorchester, Dorset on a trip to see my parents. I think it is a bit cheaper to buy here, but I will compare next back in the UK. Cheers, and thanks again guys, much appreciated.Hughie😎
Dave, Never denied that! Was a general comment about the cost issue, whichever way he decided to go. Anyway problem solved 👍 I still have my 40Meg set, bought up all the local stock of 40Meg crystals I could find cos I noticed they were becoming as rare as rocking horse droppings. However, have also invested in a Spektrum 2.4 set. One day I'll learn to programme it 😉 Happy sailing Hughie. Cheers Doug 😎
"The brain is not for storing facts, It's for thinking and knowing where to find them!" Albert Einstein. 😉 Doug