Ripley's TnA (Talk n Action) Repair Thread

[ripley802]

I'm not sure, If it wasn't required I'd have thought that Trackmaster wouldn't have fitted it in the first place, how does the talk and action work? Does it start and stop independently? If it runs by itself it may be that the transistor that controls the switching on and off has a current rating, if you remove the resistor it might consume more current and overwhelm the transistor,
like I said I don't understand why it has the resistor on in the first place, are you sure it is part of the power circuit? Could it be the point where the circuit board takes the power from the main circuit? Obviously the sound circuitboard will require a regulated supply, this might be supplied through the resistor,

As for the circuit board with the copper track, if you follow the etched track work back you should be able to find the other end where a component is soldered to it, if your careful you should be able to solder your wire onto the same connection - not pretty but it should work.

So the two wires from the tender which one is negative and the other positive but attached to the middle prong on the 3 prong switch. From there those go directly into the circuit board. Seems like that would be the full 4.5 v (3 x AA). The motor has a (+) and (-) coming off the board which both go to a resistor on each side then the motor. My thought on the capacitor is it is storing a bit of power as some of the track causes a burst in speed, so that may make sense. It does start and stop on its own when going over the track. The acivation mechinisim has two wires that go to the board. One of the terminals that the wires connects to also has the switch wire connected there too. I am working on a wiring diagram that I will try and post here.

As a test while I had this one out of the motor chassis I remove the resistors and connected the wires directly to the terminals. It does seem a bit faster now, but hard to tell since this one is not fully assembled yet. I may try this with one of the others to see if it makes a difference.