Re: Sinbad System One problems

I agree here. do the ground mods. I replied to your other post before I saw
this post.
Timathie cargpb15
"Gott Lieb?" <rgp@xxxxxxxxxxxxx> wrote in message
news:47995d97$0$1198$470ef3ce@xxxxxxxxxxxxxx
Knowing that it's an original CPU will help with future posts on this
thread. Are the power supply and driver board stock boards too?

You can test for the 5v at the CPU, where it comes in. The easiest place
is to put you test leads on the + and - of the caps on the CPU.

The DT reset coil sounds like a bad ground, but it still could be a
combination of a crappy connection and a locked on transistor.

Make certain to do the ground mods as laid out on John Robertson's site at
http://www.flippers.com/gottlieb_ground_cures.html#system1. If all of the
boards are stock in your game, the mods are mandatory, IMO.

Jim
CARGPB35


PCFree wrote:
It's the original board. This game has been in the family since '78
and I have tried to keep it clean & running. I will check the ground
and contacts and see if it helps. Whoever had this pin first knew
enough to move the battery off the mainboard so that is not a problem.
It is a rechargeable but it is teathered about 6 inches below the
board.

Where is the best place to check the 5v supply? As far as the drop
target coil, It feels slightly energized and want to draw it up if I
move the mechanism, but if I manually move it to the reset position,
it lockes itself there and if I then turn off the power, it releases
so I know it is not a mechanical thing.


.

Relevant Pages

  • Re: Sinbad System One problems
    ... Knowing that it's an original CPU will help with future posts on this thread. ... Are the power supply and driver board stock boards too? ... The DT reset coil sounds like a bad ground, but it still could be a combination of a crappy connection and a locked on transistor. ... Make certain to do the ground mods as laid out on John Robertson's site at http://www.flippers.com/gottlieb_ground_cures.html#system1. ...
    (rec.games.pinball)
  • Re: Tech: HH Cpu controlled lamps
    ... The ground mods are done. ... string of CPU controlled lamps on the bottom playfield. ... Once you have it to the driver board, it's on to figuring out what is ...
    (rec.games.pinball)