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Token conversion While the glass is away being printed and I am waiting for the reel bands / barcrest coin decals to arrive, I decided to to carry on with a couple of other tasks. I have printed a set of temporary reel bands on A4 and taped the 3 sections together. They are not perfect but good enough to test with for the time being. Next is to adjust the coin mech to accept a 10p token instead of the 2p. This is done by adjusting the coin diameter screws and moving the bar upwards to allow the larger coin to pass through. I ordered a replacement coin tube for the tokens. I bought a 35mm OD and 29mm ID x 400mm Perspex acrylic clear tube from eBay. I then swapped over the coin solenoid for a slightly larger blue 10p version from a spare I had. I’ve linked out the coin level sensors for the time being. Then a quick test to make sure the token payout works.

Great stuff Ed it will look great when it's all done

This is great work .as long as you realise that olly only prints onto perspex and doesn't do mirroring on the artwork .to get a proper reproduced glass you will be talking 500+per glass and that's if you can find a company that does it .ian eason of instance automatics has done one or two but it took years as his printing guy and artist messed him around.

I have drawn a draft replacement Lamp mask in CAD and I'll 3D print the replacements. I'll be able to finalise the size when the bottom glass is ready. Also given the size may need to print in sections. But doable.

New glass and artwork As original or reproduction Line Up or Super Line Up glass is not available, I decided to go about sourcing a replacement. The biggest challenge is to recreate the artwork in a vectorised high resolution format to allow quality replacements to be printed on to glass. I plan to get the new glass printed by Olly at the Arcade Art Shop. The artwork needs to be created in Adobe Illustrator, I have a basic knowledge of the software but I am by no means an expert. In the past I have used an online marketplace called Fiverr.com where you post project, IT professionals bid for the work and take on paid assignments. Generally the graphics professionals are from India, in my experience the speed and quality of the work is good and can get a project to about 95% with revisions. Then I make any final changes needed. Cost is around £50 per drawing plus a few hours of my time to finalise. First step is to provide as much detail as possible, in this case I used a copy of the Line Up glass scans from this site as a guide and also provided high resolution photographs of key areas of detail to get as close a reproduction as possible. The pictures and measurements were provided by a couple of collector friends. Thanks to @Slotto - Duane Mark McLoughlin

Nice project and I’m looking forward to seeing the finished article. it’s nice that an old thread I did years ago is still helpful today. Barcrest did improve the security on their MPU 4 hardware by adding the lamp sequencing on top of the existing security measures.

Program card and Eproms After some research on this site I have learned that the Super Line Up and Line Up roms are protected with the CHR chip, so I would need a modified chipset as the CHR chips are not readily available. One of the memory cards that I bought was from a 2p On Line, it still had the CHR chip fitted but after checking that would have been from an Adders & Ladders and apparently they are specific the the machine so no use with the Line Up. I studied one of the posts from @Road Runner where he removed the checksum and CHR check routine from a couple of Barcrest rom sets. I dusted off my old eprom programmer and burned a set of patched Super Line Up roms from that post. Changed the links on the program card and they worked perfectly, couldn't resist a quick play. Need to get some Line Up roms working next.

This next one had me scratching the old barnet! Fault report was no boot and it needed a good service with all the usual culprits changing. Once powered up with the diag software all lamps were flashing, all triacs functional and all reels firing so I was pretty pleased with myself thinking I'd have all wrapped up shortly. How wrong can you be!! With the diags the next test is to press the 'Start' button, this enables the switch test which bleeps on every switch operation. In this case it just froze and a reboot was the only way to get it restarted. Checks around the DATA and ADD lines showed everything was still active? Hmm what might cause that? First finger of suspicion was towards IC3 (6821) as that controls the switch matrix. Nope! IC4 (6821) also supplies an output to the switch matrix so maybe it was that? Nope! I wasn't really convinced it could be the 6840 as although it controls the sound the actual bleeps don't originate from there. As it's only a 28 way, in went another one, was that it? Nope! So only two big chips left as it couldn't possibly be the CPU. It couldn't be IC5 (6821) as the reels were firing OK so I went for IC6 (6821) next which has absolutely nothing to do with the fault symptom but hey ho in for a penny .... Bingo! Just goes to show sometimes luck is better than logic.

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