Konami Final Round (GX870) PAL

 PAL Updates  Comments Off on Konami Final Round (GX870) PAL
Apr 062013
 

Been going through a few more scrap boards and found one on a dead Final Round PCB (GX870) marked 007793.
I originally dumped this using the PAL dumper but then found the original to be unlocked so both have been added.

This has been marked as assumed working due to the original chip being unlocked and my recreated equations match the original dump

 Posted by at 7:02 pm

Turbo Force PLD’s

 PAL Updates  Comments Off on Turbo Force PLD’s
Apr 062013
 

Ive got a non working Turbo Force PCB that has 5 EPL16P8 devices on it. Here im assuming they are compatible with PAL16L8 devices and used the PAL dumper hardware to clone them.
They are untested but hopefully they work and someone can test them out.

 Posted by at 2:19 pm

Bubble Bobble PALs

 PAL Updates  Comments Off on Bubble Bobble PALs
Apr 052013
 

Channelmaniac has now confirmed that all the Taito Bubble Bobble PALs are working.
Im very pleased about this so massive thanks to him again.

 Posted by at 5:07 pm

CPS1 Knights of the Round PAL

 PAL Updates  Comments Off on CPS1 Knights of the Round PAL
Apr 012013
 

My friend Dragos sent me the PAL for Knights of the Round.
The chip is marked as KR63B and found in the usual position on the B board.
This file was the one found in MAME but he has actually tested it so I don’t see a reason why not to add it.

Thanks to Dragos for testing this

 Posted by at 9:25 am
Mar 312013
 

My mate bought a Spectrum+ off eBay recently and it didn’t work.
All we got on powering up was this

First thing I did was check the voltages. They all seemed fine so on with the next test.
The ULA was the only chip that was socketed so I quickly replaced it with a known good one. Still the same fault.

To save myself some time I thought I would desolder the Z80 CPU in order to use the Fluke 9010. Turns out the CPU was at fault and on fitting a new one we got this (bad picture, I know)

Anyway, I carried out the very simple composite mod and this is pretty much all done. Another Spectrum saved

 Posted by at 8:58 pm