Yes, had a look at that. It shows the components, but doesn't describe how the lights are supposed to behave. The fact that they're described as "brake lights", though, is rather suggestive of their flashing when the throttle is closed.My bad🤯, yes it's c431. Your link states head & brake lights..
Have you viewed the service sheet on your link shows the lighting circuit etc 👍🏼
Pat,Yes, had a look at that. It shows the components, but doesn't describe how the lights are supposed to behave. The fact that they're described as "brake lights", though, is rather suggestive of their flashing when the throttle is closed.
Thanks, that's exactly what I was after.Pat,
You are correct in regard to the rear's being brake lights (only), but they dont "flash" as such.
Having a number of the lit (analogue) Scalextric Porsche 962 and Jaguar XJR9 cars, plus Lambo' Diablo and Cadillac LMP cars etc, mine (Headlights) operate only when throttle is applied and intensity of illumination is proportional the amount of throttle.
1/5th throttle (just enough to move car) headlights barely illuminated, illumination increases as throttle is pulled upto about half to full throttle when headlights are fully illuminated. Dim again as throttle is released, to off when no throttle is applied.
Brake lights operate only when throttle is released, and only momentarily (around 0.7s - 1.5s approx). In other words when throttle is released they Illuminate, then fade/dim to off until next release of throttle, so no flashing, unless you are on/off/on/off the throttle.
This I believe is the original intended function for this type of lighting circuit, the only difference being the Lambo Diablo which in addition to brake lights also has tail (running) lights which again operate in tandem with the headlights, and proportional to throttle application.
I hope this is of help.
Cheers,
Martin
sounds like a loos wire!?I've got a late(ish) Scaley Porsche 935 (C431 I think) which is supposed to have working lights. It's got all the gubbins, but they don't. Work, that is.
I can see how the headlamps work, and why they don't (the little grain-of-wheat bulb has long since met its maker). However, the tail lights mystify me somewhat. They're LEDs, fed through a fairly simple circuit board. They flashed occasionally when I applied a 9V battery across the motor, but not consistently, or in any way that allowed me to determine what was making them do it.
It would help if I knew how they were supposed to behave. Are they supposed to be lit constantly, as tail lights? Or are they supposed to only come on when the throttle is closed, as brake lights? The capacitors on the circuit board suggest the latter, but, although I'm not a total bozo with regard to electronics, I'm having difficulty deciding what the circuit board does. As I've never seen one of these cars in full working order, any advice would be appreciated. I've got a similarly wired, and similarly non-functional, Jag XJR, so it would be handy to know how these work.
Thanks in advance.
