TECH: Bally Lost World wire help

[Guest]

Archived from groups: rec.games.pinball (More info?)

I've got the LW and for all intents and purposes, seems to work.
Except one small issue. No playfield coils.

knocker works.

voltages at power supply all fine.

one minor problem that I've found:

all wiring to the connectors on the power supply board were cut and
frankensteined back together for some unknown reason. All wires but
one. it's a white/yellow wire coming from pin 13 of J3 on the power
supply. It's 43VDC and I can't for the life of me figure out where the
hell it goes. Schematic labels it as "Sol Buss" so I have a pretty
good feeling if I can find it's mate, I'm in business. Right now, the
wire is hanging off the connector about 6" and there is just no match
for it anywhere.

Any ideas? If I knew where it was supposed to go, I could attempt to
trace it back from it's destination. Or worst case, could re-run the
wire. But I gotta know where it goes first.

Please help.
MitchelWB

 

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Archived from groups: rec.games.pinball (More info?)

All of the coils are daisy chained together.
Try looking at the playfield schematics to see where the 1st coil in
the series is?
Or maybe someone with a LW can help.

Lee

 

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Archived from groups: rec.games.pinball (More info?)

Bueller?

I can't find this thing to save my life. The only references I can
find to the sol buss are on the 3 connectors coming off the power
supply. And all 3 of them are tied together on the board. But where
the heck does it go?

MitchelWB

 

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Archived from groups: rec.games.pinball (More info?)

OK so what I see is that you are going to have to physically go
backwards from the coils to the board connector.
The "Frankenstein Hack Job" would scare me too.
Maybe someone replaced a burnt connector with a similar one that had an
extra wire. Who knows.
Check the 43V common wire that runs from coil to coil all the way back
to the board.
You might find a broken wire or something along the way.
Trace the wire back and that would be the logical one to connect with
if you still need to.


Lee

 

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Archived from groups: rec.games.pinball (More info?)

well, for the record. Apparently, the Sol Buss 43VDC coming from
A2J1-6 was not spitting out the required voltage. Therefore not
powering playfield coils. So I figured what the hell and tied this
loose wire into the piss poor connection. The electricians tape didn't
even cover the bare wires fully, so it was easy to just wrap it around
it to test it.

Powered it back on and viola. playfield coils are all firing just fine
now.

Still don't know where the wire technically should go, but it's all
working right now. Maybe it was an extra wire, but why's it in the
schematics then?

MitchelWB

 

[Guest]

Archived from groups: rec.games.pinball (More info?)

MitchelWB wrote:
> I've got the LW and for all intents and purposes, seems to work.
> Except one small issue. No playfield coils.
>
> knocker works.
>
> voltages at power supply all fine.
>
> one minor problem that I've found:
>
> all wiring to the connectors on the power supply board were cut and
> frankensteined back together for some unknown reason. All wires but
> one. it's a white/yellow wire coming from pin 13 of J3 on the power
> supply. It's 43VDC and I can't for the life of me figure out where the
> hell it goes.

Does it look like it had been soldered directly to a pin? A common
pratice was to take it out of the (burned up) connector and solder it
direct. Not what I do at all, but find very many in that condition and
repair that the right way.

Schematic labels it as "Sol Buss" so I have a pretty
> good feeling if I can find it's mate, I'm in business. Right now, the
> wire is hanging off the connector about 6" and there is just no match
> for it anywhere.

The schematics will tell you where it goes if you dig around in there a
bit.
>
> Any ideas? If I knew where it was supposed to go, I could attempt to
> trace it back from it's destination. Or worst case, could re-run the
> wire. But I gotta know where it goes first.
>
> Please help.
> MitchelWB