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Old 02-11-2007, 01:59 PM   #1
TEM
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Default Mysterious Glitching Program

Trying to get my old TRF414M2 running for a 2nd class, having glitching issues. I've never really ran the car so consider it a "new" problem.

Basically it's a new car. I've put in a JR R330S (27mhz SPCM) receiver), novak cycloneTC speedo, JR DS8417 digital servo, Peak dynasty 19t spec motor. I run indoor on carpet. Theres about 4 places in the track the car wants to go full speed and to the left and crash into the wall. Even when I drive around the track at 10% throttle to crawl around to see what happens, it goes nuts on certain parts of the track. On this car, the receiver sits on top of the servo on one side and the ESC is on the other. I tried replacing the crystals, replacing the receiver(with another SPCM one and an FM one), replacing the servo with a non digital, different 19T motors (other dynasty and a C2) replacing the speed controller(GM SX12) and I still get glitching. I took out all the bearing shields(was told they can cause glitching) still the same problem. I'm sure it's not my transmitter (JR R1Pro Spcm) cause I got 3 other cars that I run with NO glitching(in both Spcm and FM) and the parts I've been swapping through is out of my other working cars!

So what are other things that cause glitching that I'm unaware of?
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Old 02-11-2007, 02:39 PM   #2
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having your reciever on top of a digital servo, is part of your problem. also make sure you have motor capacitors installed. then check you wire leads from esc and servo to the reciever. if they looked flattened at all,crushed the wire can be making contact inside of the insulation and cause problems to. also if it is an all carbon chassis check you antenna wire and that its not grounding on the chassis. 100% carbon conducts electricity pretty good and give you fits if you insulation is open and the wire is making contact.
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Old 02-11-2007, 02:40 PM   #3
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Quote:
Originally Posted by TEM
Trying to get my old TRF414M2 running for a 2nd class, having glitching issues. I've never really ran the car so consider it a "new" problem.

Basically it's a new car. I've put in a JR R330S (27mhz SPCM) receiver), novak cycloneTC speedo, JR DS8417 digital servo, Peak dynasty 19t spec motor. I run indoor on carpet. Theres about 4 places in the track the car wants to go full speed and to the left and crash into the wall. Even when I drive around the track at 10% throttle to crawl around to see what happens, it goes nuts on certain parts of the track. On this car, the receiver sits on top of the servo on one side and the ESC is on the other. I tried replacing the crystals, replacing the receiver(with another SPCM one and an FM one), replacing the servo with a non digital, different 19T motors (other dynasty and a C2) replacing the speed controller(GM SX12) and I still get glitching. I took out all the bearing shields(was told they can cause glitching) still the same problem. I'm sure it's not my transmitter (JR R1Pro Spcm) cause I got 3 other cars that I run with NO glitching(in both Spcm and FM) and the parts I've been swapping through is out of my other working cars!

So what are other things that cause glitching that I'm unaware of?

If you have replaced every think other than the handset borrow one to prove its not he handset it all you have left to replace
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Old 02-11-2007, 02:41 PM   #4
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is a personal transponder in use?
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Old 02-11-2007, 03:15 PM   #5
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Quote:
Originally Posted by stuey
If you have replaced every think other than the handset borrow one to prove its not he handset it all you have left to replace
Is that Lucy in your avatar stu?
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Old 02-11-2007, 04:53 PM   #6
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Default Glitching....

Personal transponder is not in use. The receiver was on the servo, but I did try putting the receiver on the chassis on the esc side and putting the esc on top of the servo. I also put in an analog servo, still glitches. The motor has caps built in and never had issues with any motor with internal caps on glitching. All the wires are new and properly soldered. I've been doing RC for years, racing and flying and I'm an EE. Never a glitching issue even racing 15years ago with an AM radio. I don't got anyone around me with a radio compatible with mine for testing. Everyone is on spectrum or 75 or 27 of a different brand. No issues with my other cars and I've already swapped receivers from a non-glitching car. I guess I'll have to try using another radio set and see what happens...
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