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It's time! I have decided to document some repairs as YouTube videos. The first will be a "Re-Repair", where I take a board I fixed, return it to non-working condition then describe my method live as I put it back together. Check it out 9PM EST on Thursday February 28!

https://youtu.be/gRgHS0Sztl8

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The CPU on a Deco/Bally/Midway Burgertime is sealed in a green tomb. If you think yours is pooched, replace it with this new one. More information coming soon, but for now please email me at This email address is being protected from spambots. You need JavaScript enabled to view it. if you want one.

Kit includes board, headers, new Texas Instruments ICs and a tested (but most likely used) 6502A CPU. 

DIY Kit - $69 USD

Assembled kit - $99 USD

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While repairing some Bagman boards I found that the TMS5110A was getting hard to find in a standard DIP package. Even those being sold as compatible showed up in this shrink-DIP format. So I had some adapters made!

These are old stock TMS5110ANL chips in an SDIP package with a custom made SDIP-DIP adapter. This will fit into a standard sized 28-pin DIP socket like the original used on Bagman.
 
These come preassembled (hand-soldered) with machined pin headers, which fit into the original socket (with a bit of force!). Each one will be tested in a Bagman before shipping.

Please contact me at This email address is being protected from spambots. You need JavaScript enabled to view it. if you wish to order. Standard price is $20 USD plus shipping.

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This board comes from a fellow enthusiast who had taken a crack at it with no success. Luckily he installed sockets in a lot of places which should make some things much easier to diagnose!

The schematics are available (although a little fuzzy) in the manual. Missile Command runs on a 6502A CPU, like several other Atari boards. So the first thing we want to do is check all the bare minimums on the CPU. Turning on the board showed a solid blue screen and no activity on any pins on the CPU, besides the watchdog circuit resetting the CPU on its own about twice a second.

Why did I bother to post this picture

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Introducing FLEP adapters! These are intended to help you replace your broken or missing Bipolar PROM for arcade PCBs and other projects.

I had trouble finding a way to program old PROMs, often used on older boards for color information, so I decided to come up with a solution. FLEP stands for FLash/EProm, supporting 39SF010A (or equivalent) 1Mbit Flash or 27C010 (or equivalent) EPROM. The hard part is finding chips fast enough since the original PROMs were very fast. I have been using 55ns SST39SF010A so far with perfect results on older arcade game PCBs.

Available types:

FLEP-82S123-L and FLEP-82S123-R: 32 x 8 PROMs. Replaces 82S123, 82S123A, 63S081, 6331-1, 18S030, 7603-5, 27S19AC, 74S288, 5610, 7051. Also open collector variants 82S23, 6330-1, 18SA030, 7602-5, 27A18AC, 74S188, 82S23A. 

FLEP-82S129-L and FLEP-82S129-R: 256 x 4 and 512 x 4 PROMs. Replaces 82S126, 82S129, 82S130, 82S131 and their variants. 82S129, 6301-1, 24S10, 7611-5, 29661, 27S21, 74S287, 3621, 82S129A, 63S141, 7611A, 27S21A, 7052, 82S126, 6300-1, 24SA10, 7610-5, 29660, 27S20, 74S387, 3601, 82S126A, 63S140, 7610A, 27S20A, 82S131, 6306-1, 7621-5, 29611, 27S13, 74S571, 3622, 82S131A, 63S241, 7621A, 27S13A, 74S571A, 3622A, 82S130, 6305-1, 7620-5, 29610, 27S12, 74S570, 3602, 82S130A, 63S240, 7620A-5, 27S12A, 74S570A, 3602A.

FLEP-82S137-L and FLEP-82S137-R: 1024 x 4 PROMs. Replaces 82S137 and variants. 82S137, 6353-1, 24S41, 7643-5, 29641, 27S33, 74S573, 3625, 82S137A, 63S441, 7643A, 74S573A, 82S137B, 63S441A, 7643B, 27S33A, 74S573B, 7054.

All cross-reference data from Mike's Arcade.

A FLEP-82S123-L replacing an 82S123 at 6L on a Galaxian.

A FLEP-82S123-L and a FLEP-82S123-R replacing 63S081s at IC6 and IC7.