Re: AFM Strobe problem

Ralf,

Most of the pinball board repair folks should be able to fix this.

I assume the 3-pronged component was a small blue rectangular box?
That is a transformer (T1). Are you sure you friend got the leads
soldered back in the right places? It is a good idea to glue that
component down when it is soldered in. The leads are very small and
break from vibration. Use a glue that can be removed at a later date.
A small dot of RTV will work.

You may want to check the bulb solder again. The solder 'pads' on the
outer legs of the bulb are actually on the opposite side of the board -
meaning you have to flow solder through the board to the other side to
get a good connection.

Note that the strobe will not work with the coin door open...

Below is a link to a troubleshooting guide and schematics that I posted
a long while ago. This is not for beginners. Maybe someone you know
can help you given this guide? Otherwise send the boards out or you
may damage them further.

Download the files to your desktop before opening (that seems to help
on my machine at least)

I have added dialog boxes with descriptions of the circuit. Double
click to read them.
http://www.home.earthlink.net/ ~zeecarr2/STROBE.pdf

Here is a link to my strobe troubleshooting guide. It includes
voltages to check for on each capacitor. It is long and boring! I
have checked it over carefully, but it may not be perfect. Use at your
own risk.
http://www.home.earthlink.net/ ~zeecarr2/AFM.doc

Good luck! Please don't attempt to fix your own card if you are not
familiar with multimeters or soldering. There is high voltage on these
boards - beware!

John

.

Relevant Pages

  • Re: Dont do it without the knowledge
    ... There's an over whelming amount of knowledge on RGP. ... All you need to buy is a DMM, soldering iron, solder, solder pult, ... fix that one myself. ... ..Even the megatouch machine that I ...
    (rec.games.pinball)
  • TECH/Help: Getaway Lamp issues
    ... I was able to fix a bunch of minor issues. ... I took the board out last night and visually inspected the connectors on ... the backside of the board hoping for missing solder or something, ... I was thinking maybe if the game was hot or cold ...
    (rec.games.pinball)
  • Re: broken circuit board advice
    ... have it if I could fix it. ... I can't solder the connections back, ... Single-layer, single-sided: All the traces are all on one side. ... I am _not_ up on the whole process, but if you don't mind spending $$$ you can have about as many layers made as you're willing to pay for. ...
    (sci.electronics.design)
  • Re: broken circuit board advice
    ... friend stepped on and broke the usb male end off of. ... have it if I could fix it. ... simple matter of soldering the piece back on and that the solder ... can have about as many layers made as you're willing to pay for. ...
    (sci.electronics.design)
  • Re: tech: soldering help
    ... got a "fix it" kit off ebay and was replacing the components. ... This area of the pcb was a little brown ... for the solder to stick to. ... If multiple traces connect to the same pad, you'll need to bridge the gap with wire. ...
    (rec.games.video.arcade.collecting)