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It will take me a while to get back into this issue you are having as it's been a long time. So some questions: Are you certain you board works fully with a standard cart? The videos you posted have rolling frame, is this just your monitor? You need to post a good picture of your cart so I can...

Yes as Slice is purely a passive tester and cannot drive its outputs. Those 16B boards are a pain as you point out. I had to make ribbon extensions to test CPS1 mainboards for the same reason. It is best to keep them short so you can stack the boards in reverse order. Slice with just the...

Yes, I can. I use the same Slapstic patches in my Atari System 1 multi cart (https://forums.arcade-museum.com/threads/atari-system-1-multi-cartridge.479793/) Biggest problem I see on your cart is that you are not replacing the Proms at 5A & 6/7A. These control the Palette & GFX bank switching...

Here is a link to my google drive with a copy of my lastest Patcher version: https://drive.google.com/file/d/1yt0aONAzfLiEYH0RrzNc0ZzvibeOrZ_E/view?usp=sharing As for getting rom sets to work on different cart versions it isn't that difficult to do. Just use the Mame source file for rom...

Choplifter is not a System 1 game! It's a System 2 and uses the enhanced tilemap custom IC. The only 2 standard system 1 games not on my multi atm are Block Gal & Water Match. I may well add these into my rom maker so they can be selected into one of the 16 slots. Then there are the bank...

Quite correct, Slice is a passive tester and cannot drive lines. You can however test roms & rams to see what data is being read/written to them. You can also set address triggers when testing memory devices so that when that location is accessed it can grab upto 300ms of data. I have used this...

The square central daughter board is made by Sega and converts the earlier board set to 4 way scrolling from 2 way scrolling. The longer daughter board expands the sprite roms from 2 upto 4 and is needed for games with the extra roms. My Sega multi is finished and is working fine on a random...

Another common cause of these boards giving a static display like that is mask rom failure (L12/L13). The reset circuit actually works off 10.3v unregulated which comes into pin 4 of the power connector. Also it would be worth checking that you have a clock signal on the 68010 pin 15 and to also...

When starting out with Slice I bought 8 different LA's. Most ended up being too limited on channels at high freq or low storage memory. Quite a few were noisy as well. For Slice I use the Digilent Digital discovery, it will do 32 channels at 200Mhz and grab upto 300ms of data with very little...

No. It is unlikely that the eproms are your problem. It will most likely be TTL chips.

There is one part of the circuit that I know can cause road issues and thats to do with the raster interrupt trigger but am sure the picture looked a bit different to your issue. It's shown on sheet 13 of SP-298 Road Blasters schematics. It's 8A & 9A (74LS30), 10A (74LS27), 10F (74LS161), 10B...

Yes, to be honest I completed this just before I did the Atari System 1 cart so never really did a proper release. I usually sell it as a complete kit of parts for £85 + postage or built £135 + postage.

I have done a board set to do this in a much neater way and corrected the rom checksums. Heres the manual for it.

Here you go then: ArcadeRomPatcherV12.rar ;) This issue with the later LSI carts such as RB Rev4 is that you also need to mod the BSProm due to the eprom size changes. There is also another type of RB LSI cart that has some patch wires with an extra TTL buffer that can be a pain to convert. I...

Use a multimeter and check the voltages on the TMS5220, Pin 5 should be +5v, pin 11 should be 0v and pin 4 should be -5v. Pin 6 should be pulsing when producing speech, I think it's around 8Khz. Pin 8 should have a low level audio signal on it, you can use a small amped speaker to check, I use...

I believe one of the buttons Fire / Magic will advance it, perhaps after a short delay.

Gauntlet already has a Freeplay in its settings

I just repaired a System 1 cab which was failing to boot. It had 5v and leds were lit but would just give a static screen with a few characters. On checking though the 10.3v unregulated line was dead which is crucial for the watchdog/reset circuit. Turned out both 2amp fuses on the AC feed to...

I wrote an Atari System 1 ram test rom a while ago. It checks all but the motion object ram for both the TTL & LSI main boards and will indicate which individual chip is bad. It's posted here http://www.ukvac.com/forum/atari-system-1-ram-tester_topic360268.html

The sound section of the board is on the short edge next to the joystick inputs. It has a 6502, pokey, TMS speech chip, Yamaha sound IC, 2 eproms and 2 x 2K ram chips. It would be worth re-seating all of these chips to see if it makes a difference. I have known faulty pokey's to stop the sound...