Coil Problems with BH

[vipe155]

I have an odd issue that just came up with my Black Hole machine. I
played several games on it tonight, and everything worked great and
has worked for awhile now. Well, now all the upper pf pop bumpers (4
of them) and the two upper pf slingshots don't fire. All other
switches, lower playfield pops, etc. work, just not those 6 things.

I don't have a manual/schematic for this game, but each of these items
has it's own fuse so obviously it's not something that simple. The
solenoid F4 fuse was good as well. I'm not sure what ties just these
mentioned things together that none of them now work.

Also, oddly enough, about 1 in 10 times I roll a ball into one of the
pops, it while fire that one time. Besides that, they are dead.

[Joseph Vaccaro]

I'm no tech but this could be an issue with a loose wiring
connection. The daisy chained ground wire connection could have come
loose somewhere and all your pop bumpers and slingshots that are in
line with that are without ground and will not operate. Something to
check until a tech responds..... good luck

[Gott Lieb?]

All of these coils are +38VDC, and get power through a NC switch on
the tilt relay and a NO switch on the game over relay. Check both of
these relay switch stacks for misadjusted / fouled switches.

Jim

[Steve Charland]

If the pop bumpers all failed at one time, the 5VDC and ground
lines for the pop bumpers come through A1J6, try cleaning that
connector and see if the pop bumpers come back.

Steve
System 80, not just a job, it's an adventure
(posting from a dumped account)

[Steve Charland]

Yep, Jim's got it covered, I'd also suspect connector A12/P8. If it's
a multiple problem check my other post.

Steve
System 80, not just a job, it's an adventure
(posting from a dumped account)

[vipe155]

> > Jim- Hide quoted text -
>
> - Show quoted text -

Hey, thanks everyone for giving me stuff to check. I think the relays
were all adjusted correctly when I checked them, but I'll see.

[vipe155]

> were all adjusted correctly when I checked them, but I'll see.- Hide quoted text -

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> - Show quoted text -

It looks like the Tilt Relay has a misadjusted switch. It looked like
it was making a good connection, but I had to fiddle with it a bit and
now everything works. I didn't know those relays would have had
something to do with this stuff.

Also, for awhile, this System 80 game was a real adventure getting it
working 100%!

[fairlanephantom]

I've been working on and off on a Black Hole in another state, it's
caused a lot of aggravation from how many things slowly went wrong, but
it's a learning experience to say the least. I own a Bounty Hunter
System 80, and it's always been solid, besides a temperature/humidity
dependent sound issue.

--
fairlanephantom
This USENET post sent from http://rgparchive.com

[Fursphere]

The Black Hole seems to be the *worst* of the system 80 games as far as
maintenance goes.

Either tear the entire game down and rebuild it all at once (every edge
connector, every switch, every contact) - or play break/fix.

As the more you play it, the more "little things" will go wrong - until
you've replaced / fixed them all. lol

--
Fursphere

[VDOJAQ]

Repeat after me... ground mods, slam switch, power supply, and rebuild
connectors. Again....ground mods, slam switch, power supply, and
rebuild connectors.

You have just solved 82.7% of system 80 reliability problems. The rest
is normal pinball issues.