Originally Posted by A_Stratus
I was wondering if anyone has had any problem with running their Spektrum in their 12th scale with a QC2? I plan on running my T-Fource w/ QC2 and Spektrum, on Ozite... anyone having any problems?
End of last season I started to have problems with my stock receiver that came with the Helios, switched to the spektrum system. It seemed to solve the problem. As it turns out, I was just too elated to be able to drive the car around the track. I was using the Quantum (first gen.), not the QC2.
Then I started to notice the problem that seemed to gradually grow worse as time wore on. I just pulled the spektrum system and put the KO stuff back in my car (I also fixed the original problem with the stock equipment, too)... Here is the symptoms; full charge, sitting on the line just before the race starts, car creeps forward in the grid hitting the car in front of it. No control over anything. Twitch the steering wheel rapidly, nothing for the first few turns, then starts to respond to like every other turn. Still no ESC functionality. The group decides to wait for me to re-bind my reciever. Start the race ok, three laps in, no steering and car stuck on full throttle... early retirement.
Second qual, same deal, only this time with a 4700 mf cap... it was no help.
The reason the transmitter didn't work with the stock gear and does work with the spektrum, the lowest pin of the Helios was pushed in half-way. I thought it was supposed to be like that, as it was like that since I purchased it. I opened the transmitter and the pin pushed the through hole plating, along with part of the trace from the board, ripping the trace off the board, disconnecting whatever that lowest pin was supposed to be connected to... the antenna lug. I fixed that problem by pulling the pin back in place, soldering a wire from the end of the pin to the lug, bypassing the board. I also took a moment to cut the trace foil back so that there is no intermittant contact to cause noise.
I am back to running on crystals, glitch free, and no caps required.
I do have a bad low voltage problem with my transponder, as it always clocks in with a low signal strength...