Bally Truck Stop - Need assistance - target problem

[mbudman]

Hello,

I am having issues with my Bally Truck Stop. There are two banks of 3 targets in the middle of the playfield. Each bank has one target that is on its own (upper most target) whereas the remaining two are wired together (at least it seems that way). The upper most target works and scores correctly, where as the bottom most targets do not register anything when hit by the ball.

TruckStopTargets.JPG (39.95 KiB) Viewed 335 times

I looked at the end of stroke switch and I believe the problem is not the CPU / MPU but the way the switches are wired.

Above shows how the two none working targets are wired.

I do not have a manual, and hte one available at ipdb.org is a very poor scan that is difficult to read.

Does anyone have a Truck Stop for which they can check the wiring for me? Or a better manual that I can review?

Or does anyone know how to fix this problem?

Any advice / assistance would be greatly appreciated.

Thanks!

Mark

[sylvain]

I do not own a Truck Stop machine, however the other 2 working switches on each side
probably could be used as a model on how the middle switches should be wired...

Good luck!
- Sylvain.

[mbudman]

Unfortunately the two targets that are not working correctly are wired differently then the one that is working. There is a yellow wire on the non-functional ones that does not exist on the working one.

Thanks!

Mark

[mad]

bonjour regarde ça attentivement ton trouble est la et test les 4004 et regarde les couleur des fils.

bye

[rocket30]

Je suis pas king de l électronique, la switch devrait être en série avec la diode selon le diagramme. Je suis tu ça track ou ben à côté.

[rocket30]

Ou bien un capaciteur va à place de la diode, pis la diode est ailleurs sous le pf

[mad]

bon il y a pas de capacitor ,sur le schématique.
seulement des diode 4004, et suis le schématique et regarde le fil du CJ4-11 il passe sur les deux targettes de la ligne au début de la diode et les couleur de fil sont identique.
et regarde les deux autre fil 2 COULEUR DIFÉRENTE la Target NO 2 le CJ4-9 (FIL) et la Target NO 5 le CJ4-4 (FIL) il vont sur chaque pointe seule avant la bare de la diode.
et regarde les autre Target comment il sont monté sur languette tu à 3 bout il sont tous séparé, pas coller et la diode est à droite avec le fil qui vas au 2 Target et celle du centre la fin de la diode avec la barre ,et l'autre c`est le fil seul.
bonne Chance .

[mbudman]

Merci!

Je vais l'essayer pendent le fin de semaine.

-Mark