humbug 36 Posted January 23, 2019 I'm really struggling with this brand new radio equipment (I'm not used to 2.4GHz). Sanwa Exzes ZZ transmitter to be exact. For some reason all of my servos (digital or analogue) do not work with my RX-482, but work fine with my RX-462 and other analogue radios. ESCs are unaffected. I have also tested my sanwa PGS-LH servo with RX-482 and it works perfectly fine. SSL and SSR modes are of course disabled. I actually have two RX-482s. With one receiver, the servo rotates almost all the way to the left. Moving transmitter does nothing, however I can hear it moving slightly around full lock left. The other receiver kind of works. Servo movement is extreamely slow and laggy, drifts to the left by itself and makes a heck of a lot of noise and gets warm. It doesn't seem to matter what settings I muck with, I can't seem to fix it. I'm sure I'm doing something stupid as I'm very noob with this radio gear. Any advice would be really appreciated... before I start throwing money and parts at this problem. Thanks. Share this post Link to post Share on other sites
Jonathon Gillham 4606 Posted January 23, 2019 I have no idea sorry, I run Sanwa gear and haven't had any poroblems. Have you asked at rctech? You may get a better response there as they have threads devoted to each type of radio gear. 1 Share this post Link to post Share on other sites
humbug 36 Posted January 23, 2019 Cheers for the reply. I posted on the RC tech forum last night too. So far 70 views, 0 replies. So I don't seem to be having much luck... https://www.rctech.net/forum/radio-electronics/1035380-help-sanwa-rx-482-servos-not-working.html After a bit of googling last night, I have read that on some multi channel receivers (10+ channel)s with high resolution output are incompatible with older servo tech. Not sure if this is applicable to me, but I think the RX-482 is programmable through the aux ports (with codes 0-10) but I have no idea how to do that, or for that matter, what settings I would want to change. All of my user manuals are in Japanese. My biggest worry is that I may have damaged those receivers my plugging in old analogue servos. Even though I don't think I have used them with SSL setting enabled, according to the manual, doing so will damage the servo, receiver or both. What's worse is that all of my gear was imported from Japan so there is no warranty. All of my gear is brand new and I've barely used it apart from a few minutes bench testing here and there so I really hope I haven't killed it already... I brought all of my radio gear with me so I'll pop over to my local hobby shop after work and hopefully they might be able to help me. I hope to try some new servos but they only seems to carry savox, and I have already tried that brand at home last night. (albeit an older model). Share this post Link to post Share on other sites
humbug 36 Posted January 24, 2019 Well, I'm now quite annoyed and embarrassed. Last night I took all of my radio gear to a local hobby shop which also happens to be the Sanwa Distributor for Australia and carried a lot of Sanwa devices. However, he may or may not have been to interested in helping me solve my problem. He didn't seem interested in binding my receiver to one of his radios. So I ended up buying 2 new PGS servos. $218 later, at home I figured out my receiver wasn't binding properly, despite CH2 and all other functions were working fine. After re-binding the receiver properly, the servos decided to work. Now armed with my new binding 'skill', I re-bound all of my other receivers and now they're all working fine. So after much messing around, I've discovered that regardless of the NOR/SHR/SSR response setting on the transmitter, the setting change doesn't take affect until the receiver is rebound. So windellmc (rctech forum) was correct. one receiver (rx482) was stuck in SSR mode and the other (rx482) was SHR mode (which my digital servo really dislikes for some reason). I was also able to recreate these problems with the previously working rx462. I then went over all of the transmitter, receiver and servo manuals with a fine tooth comb... and not once did it mention that in order to change the response mode, that the receiver needs to be re-bound. A rather annoying and expensive $218 lesson learned. 1 1 Share this post Link to post Share on other sites
Jonathon Gillham 4606 Posted January 25, 2019 Are they good servos though? That could be a blessing if it means you've upgraded servos...I had a similar experience once when I couldn't get my old 27MHz gear working with a TBLE-02S. Ended up buying new radio gear, found out much later that the old Sanwa plugs are wired differently so i could have just rewired the plugs. Still, I now have 6 sets of 2.4GHz gear so it just started the slide down that slippery slope! 1 Share this post Link to post Share on other sites
humbug 36 Posted January 25, 2019 The new servos are blazing fast (not as fast as my pgs-lh as its the lower spec pgs cl & cx) so kind of blessing in disguise. I really probably should throw out my old servos. Even though they are metal gears high torque etc etc the latency is absolute garbage. I might keep a few for my 40mhz fm system... Though i'm sure my old radio is still many times faster than those cheap servos. The old sanwa plug pinout actually also caught me out too. I bought a brand new factory sealed receiver so i could finally use the transmitter that was gifted to me from my old boss in japan. Aaand I totally fried the new receiver by shoving 5v down the signal output pin. Major bummer. Fortunately i'm handy with a soldering iron and I was able to replace the output shift register. Was a lucky guess and she started working again... Probably not something I could pull off with the rx482 due to insane complexity 1 Share this post Link to post Share on other sites
