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Author Topic: RC radio systems  (Read 3328 times)
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« on: January 12, 2010, 05:58 AM »

I have an elderly 2ch 75mhz system in a newer 4WD chassis. transmitter is a Magnum Sport FP-T2PB, rx is FP-R102JE, ESC is MC1128, power is 7.2v pack  I think the system dates to the 80's, car is much newer.

Anyone recommend a replacement system/parts.  I am guessing the receiver or ESC is shot, runs on occasion and no reverse. 

Though it might be good for the grandkids to play with.

currently running forward and turns; throttle and steering reversal functions work.
« Last Edit: January 12, 2010, 07:38 AM by Zeke » Logged
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Location: Washington, Il

« Reply #1 on: January 12, 2010, 09:22 AM »

My experience is that when an ESC goes bad, it lets all the smoke out at once ... no intermittent operation!!  You can check out the receiver with a 4.8 volt battery pack.  Remove the ESC and plug the battery back directly into the receiver ... then use the steering servo to check out both channels on the receiver.  Since the function is intermittent, I'd suspect one or more of the three trims on the transmitter have developed a problem.  You might try rotating all three of them a number of times to wipe them off.  Also, remember that if the throttle trim is in the wrong location, that will render the reverse function mute ... put the throttle trigger in reverse and rotate the throttle trim knob to see if anything happens.

If all else fails, check the Tower Hobby web site for both the cost of repair and the newest Futaba listings.  The Futaba repair facility does great work at a reasonable price ... although a new unit might be more cost effective.  Your steering servo will still work with the new systems ... they take a beating. 

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« Reply #2 on: January 12, 2010, 01:46 PM »

Hi Z

Look here

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« Reply #3 on: January 12, 2010, 04:29 PM »

I had the speki digital system on my Mugens a couple of years ago and wasn't impressed,it was nice not having to worry about what freq you're on though.

Pigs might fly, but only if you bridle them right!!

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