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Sorry to hear this,, the sys80 looked a rare one,, I have all the parts and could of helped you along the way ,

Some fucking scummy dealer. It will all come out in the wash, will be up for sale for £££££ soon once they've paid someone a fortune to fix it for them! 🤣

That’s shit! I have been there too with a silly price lineup. Someone must have offered him a grand or something

I won them and now I’m getting all the bollocks that there now not available somebody else won them and not me!! After getting the collection address everything….what a fucking carry on..

The reason the seller has cancelled the sale is because it's you! The reason he's cancelled people you know is because they are trying to get stuff for you. I have done the same, as don't want anything I'm selling to go to you. It must happen to you a lot 🤣

Let's hope they haven't gone to the bakery

Full ten mins! I was pondering them for ages! Felt like 2 hours

Bet they were not on for long, someone got lucky.

https://ebay.us/m/NvtCkI too far from me

So that was a fail! replaced IC 33 and 34, that brings me back to the LS138 IC22 results from that quoted above? Thanks Ronnie

So I checked over the hopper drive board all seems ok, I have removed IC33 and 34 and will replace with CD4049 which seem compatible, will also check the bigger transistors in the battery firing line

Well there are some white wires on that board but not as many as on the main board, so once booted the hopper motor twitches which in turn triggers the error, I will check that hopper board tomorrow as for the mpu I replaced all the triac drive transistors already and the caps are all intact and not brittle, I’m still thinking the burnt resistor in the switch matrix has something to do with this !

Every day`s a school day, i was thinking it was a serial hopper but i see not now. Anyway back to the beginning to what Bob said about the capacitors, transistors etc underneath the battery (as the board is vertically mounted) they all do the triac drives which now we know (thanks Generation) that that is the hopper control board. So do the whites from the triacs go to that board.

Ah so is that for sure the hopper board ? I thought not, will have a closer look at it

You pictured the hopper board. is two types, rectangle and the more square version you pictured

Thanks can’t see a hopper board on this! Seems to be controlled by the game card as said above, and yes I need to be sure the switch matrix is good

Can’t see what error you have, but it’s known for the hopper driver boards to burn out. just like with solenoids, and battery leaks the payout constantly fires/spins. I would say concentrate on switch issue first as may be related to that, and needs to be fixed regardless

Just the one hopper Jim

Quick question, what make/ model are the hoppers / hopper?

Thanks for the input Jim, well it's good to get an understanding of how it works, let's hope it's not an issue on the card! Hope Bob can advise on the chip readings I posted earlier.

I think you are right on both counts. I have just had a look on one of mine and although it has not got a hopper it has got the extended game card and that square chip near the aux 3 connector on the game card is a 68681 DUART which makes sense, so power from pl10 and information from aux3 on the game card. So that is a dead end as none of the tracks that directly go to the hopper are anywhere near the battery area. As Bob says a screwed up switch matrix can make them do funny things and something else i would look at which realy can do strange things is the RAM, although it looks quite clean in the photo it is in the battery area.

Ok so had a look at what I thought was a hopper driver board but thinking it’s some kind of power board? It looks like the hopper might be driven by the game card? Or the blue pl10 connector it’s hard to tell! the white triac connctor is fully populated so must be doing another job! thanks Ronnie

Never had anything to do with one with a hopper on it (bit modern for me lol) but i would think it is still related to the battery damage. Which port on the mpu does the hopper plug into, maybe have a look at the tracks to that socket and see where they go in relation to the damaged area. Jim