I dumped the PAL from a Lup Lup Puzzle PCB (a new revision that will be added in next MAME release )
PLD was a secured GAL22V10 at location GAL1 which I successfully reversed into same device.
Muddymusic sent me a Chopper I PCB to look at.
There were 5 PAL’s on this board and all were soldered in so I had to desolder them to dump.
All the PAL’s were unlocked so these are native dumps in their native format.
They will need converted to GAL format to use in a GAL chip.
Today an important addition to our PLD database thanks to ‘coolmod’, one of our finest contributors.We have from him PAL dumps of :
This is a quite rare board, a 3D shoot ’em up developed and published by Taito for the Taito Z System in 1989.Board uses a lot of PLDs and some of them are present multiple times at different location.We have the complete PAL dump set (from PAL20L8/PAL20R8 and PLHS18P8 devices, as natrive dumps and 256KB binary respectively) and but for now only some have been reversed and successfully tested into GAL targeting device.
A 1995 fighting arcade game with renderized characters developed and published by Kaneko.Two ispLSI 2032A (PLCC44 package) PLDs dumped.Dumps are unested so for now we consider them as “assumed working” (as well as the all the other ones we had from this PCB) since devices were unsecured but we are looking for someone to test them back on PCB.
Thanks again to ‘coolmod’ for his contribution.
Here is something a little more special than normal.
A quick google search for “Cruisin USA link PAL” shows that a few people have been searching for this for a while now. I personally bought a PCB a few years ago in an attempt to dump it only to find the link up version uses a different PAL chip.
Recently TheDrunkenArcade bought the correct PCB and gave the PAL to JROK to reverse.
Massive thanks to TheDrunkenArcade and JROK for doing this and also allowing us to add it.
Next up is the Commodore C16 PLA. I made a post showing the method I used to recreate this to allow it to be programmed to an original PLS100 device. After much testing I have uploaded the file.
Finally my good friend Banjo Guy Ollie sent me IC48 PAL chip from his Shadow Dancer bootleg. The device seems to be operational but the PCB it came from is not yet 100% so we cannot test it right now.
There is another PAL on this PCB that he will be sending my way when he can.
Thanks to Ollie for this
They are little but not for this less important so for joke we will call them the “Little Fab Four”.They are four small custom components we often see on our beloved arcade PCBs, this post is about the reproductions I made of them.
This is a part we can find on Lethal Enforcers PCB (and maybe other but I never encountered it), as schematics show it’s used to interface data busses of the 63C09E main CPU and its program ROM:
Techically speaking it’s a simple resistor pack.Here’s its reproduction
Testing the repro on its own PCB:
I put these three together since they have the same function, design and SIL package.They are 10 pin resistors/capacitors array used for inputs.The bigger resistors (from 1K to 10K Ohm) are used as pull-up of the inputs from edge connector, the smaller ones (10o-200 Ohm) to route the signal to the remaining inputs circuit (which could be simple logics or ASIC).Lastly the capacitors (ceramic, 100-300 nF) are for filtering possible disturbs.
Here are the repro and their installation:
Testing on different PCBs:
Good things come in small packages!
See you all to my next reproduction project.