> > > > > > > > > Hi everyone! First post here!
> > > > > > > > >
> > > > > > > > > I recently bought a bundle of Jamma boards, with those came a
> > > MegaPlay
> > > > > > with
> > > > > > > 3
> > > > > > > > > carts and a System Multi 32(huge beast!).
> > > > > > > > >
> > > > > > > > > Can anyone give me any aditional information or manuals for
> these
> > > > PCB's?
> > > > > > > > > The MegaPlay has about 9 sets of conectors which I have no idea
> > what
> > > > > they
> > > > > > > are
> > > > > > > > > for!
> > > > > > > > > The MegaTech used a 2nd monitor, does the MegaPlay also use one?
> > > > > > > > >
> > > > > > > > > The MegaPlay board worked fine when I first tried it but after I
> > > > swaped
> > > > > > the
> > > > > > > > cart
> > > > > > > > > order it stopped working! It powers on but doesnt boot the game,
> > the
> > > > > > screen
> > > > > > > > just
> > > > > > > > > stays black.
> > > > > > > > > If I remove all carts I get to some sort of BIOS screen which
> says
> > > > > 'insert
> > > > > > > > > cart'... Any ideas?
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > About the System Multi 32, can I run it with just one Jamma
> > harness
> > > > > > conected
> > > > > > > > or
> > > > > > > > > do I need to connect both at once for it to work?
> > > > > > > > > Also, what are those optical terminals and that weird port
> between
> > > the
> > > > > > jamma
> > > > > > > > > harnesses for?
> > > > > > > > >
> > > > > > > > > I hope you guys can help me out...
> > > > > > > > >
> > > > > > > >
> > > > > > > > try making sure the cartriges are inserted properly as the this
> can
> > > stop
> > > > > > games
> > > > > > > > from loading. also try cleaing the contacts with a cotton bud with
> a
> > > > small
> > > > > > > > amount of water as this does get games working. this also works on
> > neo
> > > > > > > > geo/megadrive/master system an other cartrige based hardware.
> > > > > > > >
> > > > > > > > the megaplay hardware only works with megaplay games and not
> > megadrive
> > > > > > games.
> > > > > > > >
> > > > > > > > hope this helps
> > > > > > > >
> > > > > > > > retromad2
> > > > > > > >
> > > > > > >
> > > > > > > That was the first thing I did, both the slots and carts are clean,
> > they
> > > > are
> > > > > > > MegaPlay carts.
> > > > > > > Because I didnt have the select button wired and I wanted to change
> > game
> > > I
> > > > > > > powered off the board and swapped the order of the carts.
> > > > > > >
> > > > > > > It never worked again. Seems as it doesnt find the BIOS on the
> carts,
> > > > > however
> > > > > > it
> > > > > > > goes to the internal 'insert cart' screen if no cart is inserted.
> > > > > > > I tried removing the battery hoping that it could clear the internal
> > > > memory
> > > > > > and
> > > > > > > solve the problem but I had no such luck.
> > > > > > >
> > > > > > > I remembered one thing, my setup doesnt have the -5v connected,
> anyway
> > > it
> > > > > > worked
> > > > > > > before without the -5v so that shouldnt be the problem I guess...
> > > > > > > -5v on the harness is normally used to power the audio amp, right?
> > > > > > >
> > > > > > try one game at time
> > > > > >
> > > > >
> > > > > Already did... each cart at a time, two carts, 3 carts, puttin in random
> > > > slots,
> > > > > etc
> > > > >
> > > > two things that would work would be too get ahold of mega play cabinet and
> > > keep
> > > > the other pcb as a spare or sell the games as is and get a megadrive which
> > the
> > > > megaplay is based on as there loads more megadrive games than megaplay
> games
> > > >
> > > i am not 100% sure but i think both jamma conectors need to be plugged for
> it
> > to
> > > work.
> > >
> > > a good idea would to get two jamma cabinets and put them side by side and
> run
> > > the jamma conector between cabinets.
> > >
> > > by the way what games did you get
> > >
> > > the optical conector is used for a 4 player link up
> > >
> >
> > Sorry for taking so long to reply.
> >
> > About the MegaPlay, I already have a Megadrive/Genesis but thats not the
> > point...
> > I would really love to get it working, it makes me mad when things stop
> working
> > like this!
> >
> > About the cabs, Im from Portugal, and here its hard enough getting Jamma
> boards,
> > cabinets are even harder to find :(
> >
> > Im running the boards through a supergun until I have the luck of finding a
> > cabinet.
> >
> > The Megaplay carts that I have are Tecmo World Cup, Sonic 2 and Golden Axe 2.
> >
> > I have no idea about the Multi32 game, I havent tried it yet.
> > All the roms on the top PCB start with xPR-15xxx.
> > I guess tha code may correspond to the game title.
> >
> > BTW, along with the bundle of PCB's I got I found a Gals Panic PCB! Seems to
> be
> > dead also :( When I power it up only garbage appears on screen.
> >
> one idea would be to keep the cartrides and try a difrent mega play game board.
>
> it is a good idea to sell DOA game boards as they do have scrap value. eg they
> can be have usefull parts.
>
> when handling computer parts it is a good idea to have a antistatic wristband as
> static electricity can damage computer hardware. which can be bought at a
> computer shop. where you should be able to get a hold off anti staic bags as
> well.
>
> i have also had some bad luck with computer hardware when my nes stoped working
> i would be able to get it working for a bit by cleaning the cartriges but then
> it would stop working again.
>
> it might be the slots that need cleaned also on a normal mega drive if the game
> is not fully inserted it would not work.
>
> Retromad2
>

I would really like to try and fix some of these boards if possible, Ill only sell them if I really have no choice.

I never had any sort of accident with static, this seems as a kind of a myth, I never heard anyone getting their PCB's damaged because of something like this.
I once tested a 486 PC that a friend gave me and it worked fine, only later I found that the computer had been exposed to rain and the motherboard was soaking wet when powered it!
From personal experience I can say that PCB's are more resistant to static/dust/dirt/rust/etc that most people think.

Back to topic, theses PCB's I got came from an arcade operator, not from a collector, they were all stacked together (about 30 PCB's!) in a rust filled plastic container.
Most PCB's came with a nice layer of dust and some bent and/or broken capacitors because they were all stacked together.
Luckily the Sega PCB's were on top so they seemed ok.
The Multi32 even came on bubblewrap.

I had some bad luck before buying these PCB's, my NEOGEO MVS also stoped working suddenly!
So a few days after the MVS died I bought these PCB's, in this bundle there were 4 MVS units, just what I needed, but they were all dead as well x_x

About the slots, its usual for the slots of the NES stop working, most people had no choice but to buy a new NES or replace the slots.

I tried cleaning the Megaplay carts but not the slots, its worth a try.