If that was my NUT to crack, I would see if I could get two test wire leads with their clips on each end, connected to the two end caps of the resistor.
There, the voltage developed across it is being relevant to the power consumption thru it, and that voltage level would be used as a control input for monitoring and for corrective power parameter shifting. without any further info or closer examination.ĪC power cicuitry loop, being in line at the neutral side return of the power line. Ohm it out as being a shorted circuit, if its being good and not blown. If you examine nearby, there is a white rectangular 1 amp time delay fuse marked as T1, it should be positioned wired into the AC line input power on the hot side. Then it is having the connection to each cap of a nichrome resistance wire.Ĭonsidering that nichrome is being a quite tough and springy wire, it just might have compressed back towards that half, after burning open at its weakest point, from current overloading. That resistor looks like its having 2 copper caps with silver overplating, as you can see by the timely blackened AgO 2 onset. The equiipments other portion that I saw and surmised an evaluation. With the associated electronics aspect, being its variable adjustable power supply, feeding to those solenoids for mag braking. I suspect that davenn is correct regarding an AC to DC converter - I am trying to source a replacement and will post a pic here of the working component. However, without a schematic or at least a reference board it is next to impossible to say which replacement componnet should go there. It may be that this piece of metal is the cause of the problem. I did find inside the unit a small piece of metal which looks like it has broken off somewhere, but it doesnt seem to be from any part of the trainer and presumably entered the unit on assembly. You can see in the picture that the resistor is right next to the mains power input, and could therefore be acting as a fuse to protect the rest of the circuitry. The attached photo shows the problem - a blown resistor (R64). Apparently it is not, but I am having trouble finding the receipt so may have to attempt a repair.
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