Re: Bounty Hunter Gottlieb System 80a Help

On Jul 10, 8:46 pm, billd420 <bi...@xxxxxxxxxxxx> wrote:
On Jul 10, 8:13 pm, Gott Lieb? <r...@xxxxxxxxxxxxx> wrote:



It could be several things.  First, would be the grounds connections at
the transformer, depending on the style that Bounty Hunter used.  If
they are the 9 pin rectangular ones like shown in these pics -http://www.papinball.com/tips/sys80b_Ground_mods.html, try wiggling them
at bit.  They should be corrected regardless.  Secondly, it could be a
lack of 5v coming from the power supply.  Disconnect A1J1, and see if a
solid 5v is coming out of the power supply.  If not, it will be that the
pot, voltage regulator, or both have failed on the power supply.  You
should change the pot regardless.  It could also be that the daughter
board (DB) on the CPU has cracked solder joints.  Try pushing on PROM1
when the game doesn't boot.  The solder joints should be reflowed on the
underside of the DB, and then the underside of the CPU.  You must remove
the DB first to reflow the pins.  This process is not for the faint of
heart either.  If you don't remove it properly, you could end up lifting
traces / pads on the CPU.

BTW, Bounty Hunter is a System 80B. ;-)

Jim
CARGPB35

billd420 wrote:
Hello everyone-

I acquired my first ever pinball earlier this week, its a great
condition Bounty Hunter. When we moved it into my appartment, it was
working (for the most part). Every now and again, you had to activate
the slam switch in the coin door in order to get it to boot up.

Today I went to play the machine, and when I power it on, the
playfield lights up, but the display shows nothing. The game refuses
to boot all of the sudden. It did this last night, but seemed to snap
out of it after about 2 hours of tinkering with it looking for loose
connections.

No mods have been made to the machine (that I can tell), and as far as
I know its unmodified. Does anyone have any idea where to start
looking? I'm new to pinballs, but am pretty experienced with general

Thank you very much!

Hi Jim and thank you for your reply.

First off, I'm 99% sure Bounty Hunter is indeed a System 80a, contrary
to what all internet resources say. Stapled to the inside of the
display box is a dip switch *** labeled "System 80a".

The transformer in my machine is slightly different than the one you
pictured. Each of the ground wires is soldered to a terminal strip,
then goes off into a molex connector. I think there are 3 total ground
connectors. I wiggled all of them, and disconnected to check them and
all looked good. Still no luck on getting the game to boot.

I opened up the back glass and pressed down on the main program rom's
daughter board, and the actual rom. Sure enough, I heard a few cracks
(like you hear when you stress an older PCB), and the game booted up.
Similar to what it was doing before, the game's LED read out "slam
switch open". I activated the slam switch in the coin door, and presto
the game fired up and played as normal. I turned it off, and back on,
and again, it booted to the slam switch error. Upon playing the game
for a round, I noticed the right pop bumper is dead again. It did this
yesterday, and recovered from the fault.

For now, I'm going to reflow the solder connections on the daughter
PCB in hopes that it will help. I'm not sure here, but I think I have
a few issues going on with the cabinet, rather than one isolated one.

Does this feedback point to any other areas to check out? I have plans
of doing the "mandatory" mods as shown across the 'net, but haven't
yet (I only had the pin for two days now).

Thanks again!
Bill

Another update... it seems I figured out the pop bumper issue. The two
pop bumper drivers are located right next to each other. I switched
the harness, and manually activated the bumper, and sure enough the
solenoid fired. After I put the wire harnesses back the way they
should be, I pressed forward on the harness going into the driver, and
both bumpers activated. I put pressure going the other way, and it cut
out again. I'm going to reflow the connector on that board, and I'm
thinking it will more than likely fix that issue (which is
intermittent).

-Bill
.

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