rm8 Posted August 1, 2012 Posted August 1, 2012 (edited) Have bought receiver unit and rc controller from race buggy From 8366 at bricklink. Seller tells that everything is OK. http://www.bricklink.com/catalogItemPic.asp?P=5282 http://www.bricklink.com/catalogItemPic.asp?P=6272c01 While testing found a problem: controlling at distance more than 1,5 meters is with lags. Car twitches. It is like receiver receive signal with gaps or breaks. I have all antennas, it doesnt matter 1 or 2 buggy motors connected to receiver, and no matter loaded them or not. Receiver is powered with fully charged rechargeable accus. Controller is powered with new 9v battery Pleomax (not alkaline). Dont know what is the problem: accus with 7,2v or bad non-alkalline battery at controller, or may be problem with receiver or controller? Can I repair them? At 1 meter distance all works fine: Both buggy motors and steering motor works fine and powerful. HELP! Edited August 1, 2012 by rm8 Quote
DLuders Posted August 2, 2012 Posted August 2, 2012 Are the antennas screwed in all the way on the two units? Quote
eric87 Posted August 2, 2012 Posted August 2, 2012 I also had this problem once. New batteries fixed it. Quote
rm8 Posted August 2, 2012 Author Posted August 2, 2012 (edited) I also had this problem once. New batteries fixed it. Batteries at controller or at receiver? What kind of batteries better to use? Is it normal 7,2 v at receiver? DLuders, of course both antennas screwed. Edited August 2, 2012 by rm8 Quote
le60head Posted August 2, 2012 Posted August 2, 2012 Hi mate! I'm sorry to hear you had the same problem as i did. My RC buggy receiver did the same thing: after a meter it started to lose signal and to "twitch" instead of operating smoothly. I brought the receiver AND the remote to a hobby repair service, and after some attempts to find the problem they could not help me. In the end i ordered a replacement RC Buggy Receiver Unit from this fellow: http://www.bricklink.com//store.asp?p=legostock He was kind enough to re-test the maximum distance at which the unit worked since i asked him. I'd definately recommend to you to check his store out! My RC Buggy is working fine now - no complaints whatsoever. Wish you good luck finding a replacement! Best regards, Legohead Quote
rm8 Posted August 2, 2012 Author Posted August 2, 2012 (edited) Hi mate! I'm sorry to hear you had the same problem as i did. My RC buggy receiver did the same thing: after a meter it started to lose signal and to "twitch" instead of operating smoothly. I brought the receiver AND the remote to a hobby repair service, and after some attempts to find the problem they could not help me. In the end i ordered a replacement RC Buggy Receiver Unit from this fellow: http://www.bricklink.com//store.asp?p=legostock He was kind enough to re-test the maximum distance at which the unit worked since i asked him. I'd definately recommend to you to check his store out! My RC Buggy is working fine now - no complaints whatsoever. Wish you good luck finding a replacement! Best regards,K Legohead thank you And does it play role what kind of power elements used in receiver: batteries (9v) or accus (7,2 v) ? What kind of power supply do you use? Edited August 2, 2012 by rm8 Quote
le60head Posted August 2, 2012 Posted August 2, 2012 (edited) I bought two sets of Sanyo Eneloops to use with the RC Buggy ( and my NXT as well ). they provide just above 1.2v each, or a total of around 7,4 - 8 volts. I'm quite happy with them, since they hold their current rock solid. /for now ;) / The RC buggy can be driven flat-out for about an hour before the batteries are depleted. I haven't tested the RC buggy with 9v alkalines, but i guess it will have no effect on the signal range. About the range: the buggy receives a strong signal even after about 10-12 meters. That's as far as i have tested it, and it is operating as expected at that distance. No noticable LAG or "twitching" - temporary signal loss. If i remember correctly the fault of my first RC unit was a malfunctioning chip. That's what the people at the hobby service told me, and unfortunately they could not find a replacement for it. That's why in the end i decided to look for a new Receiver Unit. The remote has been functioning ok - no complaints there. One last thing, here's a video i made with the faulty receiver unit just when i got it. As you can probably notice, after a very short distance the motors start to "twitch" instead of working continuously as they should. That goes BOTH for the Propulsion and the Steering. Hope that helps! I remember i was pretty low in spirit when i couldn't figure out why the **** the RC buggy was losing signal after just a meter. Don't lose hope, try to find a replacement module. In the end it's gonna be worth it! The sensation of driving it in the nearby park while enjoying a beer with a friend is just priceless! Once more - good luck! I wish you to easily find a helping seller who is willing to test the RC unit before you order it from him, as i did. Edited August 2, 2012 by le60head Quote
Zerobricks Posted August 2, 2012 Posted August 2, 2012 My RC unit does the same twitching thing... Well at least THIS one didnt fry out... Quote
le60head Posted August 2, 2012 Posted August 2, 2012 Sorry to hear that ... It's very annoying, and unfortunately haven't heard of anyone finding a way to identify what's causing the problem and how to fix it. Quote
Blakbird Posted August 2, 2012 Posted August 2, 2012 While testing found a problem: controlling at distance more than 1,5 meters is with lags. Car twitches. It is like receiver receive signal with gaps or breaks. I have all antennas, it doesnt matter 1 or 2 buggy motors connected to receiver, and no matter loaded them or not. Receiver is powered with fully charged rechargeable accus. Controller is powered with new 9v battery Pleomax (not alkaline). Dont know what is the problem: accus with 7,2v or bad non-alkalline battery at controller, or may be problem with receiver or controller? Can I repair them? At 1 meter distance all works fine: Both buggy motors and steering motor works fine and powerful. Does it twitch only at long range, or always? Usually when a unit like this is twitching it is because the gears on the servo resolver are stripped. The resolver rotates along with the servo output gear and measures to rotational position so the servo knows when to stop. When the resolver gears strip, the servo can't tell exactly where it is so it "hunts" back and forth for the right position. This usually shows up as twitching. However, if this only happens at range, then it would be seem to be a signal issue, either with the hardware or with local interference. Try it in another location (another building) to see if it still happens. This will rule out local interference. If it is a hardware issue other than loose antennas, sadly you will never fix it. Quote
rm8 Posted August 4, 2012 Author Posted August 4, 2012 (edited) I found some photos of receiver unit board, that I verify with my receiver unit: From brickshelf (should be original!) And this is my board I was shocked. Someone cuts many electric components at small plate(vandals!!!). Do you know what they mean and their functions? Edited August 4, 2012 by rm8 Quote
Edwin Korstanje Posted August 4, 2012 Posted August 4, 2012 That's is the reason that it,s not working Quote
rm8 Posted August 4, 2012 Author Posted August 4, 2012 (edited) That's is the reason that it,s not working Hope I can repair it if someone can help me with that chips. I can say that my unit is very powerful if I control it at 1-2 meters. It drifts very well with 62x20 tires and 2 buggy motors. I hope that this power is the same that with original electric board layout (without vandals modificiation I have). I see possibilities to build 4wd rally car like subaru or similar. Now I need to repair it or buy new one Edited August 4, 2012 by rm8 Quote
RohanBeckett Posted August 5, 2012 Posted August 5, 2012 (edited) Just for you... I decided to unscrew my 2 RC Buggy Units, and take photos.. I have one of each version (original with 2 outputs, and the 2nd edition, with only 1 (from Hot Flame) Original - http://www.bricklink...m.asp?P=6272c01 Hot Flame - http://www.bricklink...m.asp?P=6293c01 https://lh6.googleus...00/IMG_1392.JPG (high res version) On the left is the Original - note the internal version on the main PCB - 43449.40A On the right is the 2nd edition - version 43449.40C C revision https://lh6.googleus...00/IMG_1393.JPG A Revision https://lh6.googleus...00/IMG_1394.JPG Both have very different sub-PCB's below them Pretty sure, I can see from YOUR photos, that you have a 'A' revision.. and the photos you found on Brickshelf are 'C' It's interesting to note that the brickshelf 'C' edition has the dual output.. as you can see by the 2 sets of yellow/black wires, in the very first photo, unlike my C version, which only has single output, although I reckon I could mod it for two, as there's a C1 connector holes in the bottom right of t he PCB, and the top shell has a clip-out cover plate, for where the auxiliary output should be In short... I really don't think anyone has cut out your chips.. you just have an 'A' revision of the board. I too, had issues with the jittering.. but it was always solved by using better, fresh, NON-rechargable batteries (providing the full 9 volts, rather than 7.2, from 6 x 1.2v Nicads) Also, fresh, good quality 9V batteries in the remote, doesn't hurt either! :) Even with decent 1.5v Alkalines, the units don't have a huge range.. 15-20metres tops.. Now.. back to screwing these cases back together!! ;) RB Edited August 5, 2012 by RohanBeckett Quote
rm8 Posted August 5, 2012 Author Posted August 5, 2012 Just for you... I decided to unscrew my 2 RC Buggy Units, and take photos.. I too, had issues with the jittering.. but it was always solved by using better, fresh, NON-rechargable batteries (providing the full 9 volts, rather than 7.2, from 6 x 1.2v Nicads) Also, fresh, good quality 9V batteries in the remote, doesn't hurt either! :) Even with decent 1.5v Alkalines, the units don't have a huge range.. 15-20metres tops.. Now.. back to screwing these cases back together!! ;) RB Hello, Thank you for timeyou spent to help me:) I am just found that my chips are on the other side of PCB. So it is ok. Yes I use rechargeable accus. I thought about using 1,5 v - may be it is the reason. Tell me please: which of two units had jittering, and what is the range of excellent smooth working with 7,2 v ? Quote
RohanBeckett Posted August 6, 2012 Posted August 6, 2012 Hello, Thank you for timeyou spent to help me:) I am just found that my chips are on the other side of PCB. So it is ok. Yes I use rechargeable accus. I thought about using 1,5 v - may be it is the reason. Tell me please: which of two units had jittering, and what is the range of excellent smooth working with 7,2 v ? To be honest, I can't remember.. and it's been a year since I had them assembled in a vehicle.. I wouldn't be surprised if it happened to both of them. I got Hot Flame first, and it happened with that one (which is 2nd revision) I remember trying rechargables at first, but stopped using them soon after, and now, when I want to play with them, I just buy a bulk pack of 'average' alkalines. In Australia, the large hardware shops sell a 30-pack of 'Varta Longlife Extra' for under $10.. so it's not too expensive to have a bit of fun with them I can't remember the range.. but I don't think it was that far.. no more than 10-15metres for sure RB Quote
ndm1306 Posted September 11, 2017 Posted September 11, 2017 Hi, Sorry to return this topic for a long time. May I use remote 5282 to control 8676? Quote
RohanBeckett Posted September 11, 2017 Posted September 11, 2017 possibly... I don't own 8676, but Bricklink says both parts work on 27mhz... but it depends what channels/subfrequencies they each work on Quote
mocbuild101 Posted September 11, 2017 Posted September 11, 2017 1 hour ago, ndm1306 said: Hi, Sorry to return this topic for a long time. May I use remote 5282 to control 8676? No, it's a different controller, so it won't work. Quote
ndm1306 Posted September 11, 2017 Posted September 11, 2017 2 hours ago, mocbuild101 said: No, it's a different controller, so it won't work. Hi, Thanks for your reply. So I have to buy another one, do you know any multi-function controllers out there can use for both? Just my thinking, it may not available. Quote
ndm1306 Posted September 11, 2017 Posted September 11, 2017 3 hours ago, mocbuild101 said: No, it's a different controller, so it won't work. Hi, Can i use 7.4V battery pack instead of 7.2V original one? Quote
Cwetqo Posted September 11, 2017 Posted September 11, 2017 Yes. I use regular Tamiya RC pack and it works fine. Quote
TechnicSummse Posted September 11, 2017 Posted September 11, 2017 (edited) 4 hours ago, ndm1306 said: Hi, Thanks for your reply. So I have to buy another one, do you know any multi-function controllers out there can use for both? Just my thinking, it may not available. You will find the working controller in those 6 sets: http://rebrickable.com/parts/5282/electric-rc-controller-rc-vehicles/0/ 7 hours ago, mocbuild101 said: No, it's a different controller, so it won't work. Why do you think so? Rebrickable says it's the same controller for all 6 sets... 5282 Edit: Sorry, i thaught you mean 8376... -> http://rebrickable.com/parts/2514c01/electric-rc-controller-complete-assembly/0/ Red Beast and Sunset Cruiser do have the right remote https://www.bricklink.com/v2/catalog/catalogitem.page?P=2514c01&name=Electric, RC Controller Complete Assembly&category=[Electric]#T=S&C=11&O={"color":11} Edited September 11, 2017 by TechnicSummse Quote
msdobrescu Posted March 8, 2018 Posted March 8, 2018 Hello, I also have some strange behavior, but with steering only. Turn left, it's OK, turn right, it's OK. But, if I go left, then directly right, or vice-versa, it goes hesitating, meaning from left to right, then to center (straight) shortly, then right. Is it by design? Thank you. Quote
mocbuild101 Posted March 8, 2018 Posted March 8, 2018 It may be the batteries in the remote, sometimes when the batteries are weak, and you move it fast, it doesn't respond immediately. Quote
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