Atari 1976 Breakout Arcade Game PCB Repair - 6-27-2024
ฝัง
- เผยแพร่เมื่อ 21 ก.ย. 2024
- Email me @ classicarcaderepairs@gmail.com
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Yes i do offer repair service to the public..
Email questions or PCB repair inquiries to:
Classicarcaderepairs@gmail.com
#arcade #pcbrepair #retrogaming
One of my very first arcade repairs was a Breakout that also had no bricks on screen.
Looking at the schematics I could see the bricks coming from the RAM, I looked at the signals and the RAM's data input signal was stuck mid-level, it was just invalid. I replaced the chip it came from (7427 triple NOR) and that fixed it (btw. fun thing was that with no bricks, the ball would deflect off PLAYER TWO's set of bricks which were invisible as well so if you were able to hit the ball, it wouldn't go very far). Except player 2 wouldn't be able to play. That turned out to be the 4066 switching the pots between player 1 and 2 (I just jumped an unused portion of the chip which lasted a couple of years until the chip completely died, but by then I had a stash of spare parts). And the player up score wasn't flashing in "not served" state which was another 7427 triple NOR which I fixed several years later as it's one of the most minor things to go wrong in such a machine.
(remember, there's an arcade with like 120 machines, every 4th one was broke, so I had better things to do than to fix a score that was just always on instead of flashing in between turns, especially since it was a cocktail table where it was pretty damn clear which player was up. Nobody would even have noticed!)
For the sake of your mental health, please don't read the next paragraph...
Btw. there's a function or three you might wanna test to make sure it works perfectly... if you break through - ie. the ball touches the ceiling, your paddle should shrink to the size of the ball. And if you clear all bricks, they should be replaced exactly once. And you should get a free play at a certain presettable score. The hell you're gonna do this, unless you're a hardcore Breakout pro. I'm kinda decent. I got the breakthrough and free play (if set low enough), but I just can't clear all bricks - best I did was 4 left. The game should also end when you clear all bricks a second time. Good luck with that. Best you could do is force the paddle hit detection to always return true so you never lose the ball, then in between turn it off to see if the paddle gets smaller or maybe if the ball is locked up, move the paddle to where the ball is gonna hit so it deflects the other way.
Thank you for sharing the process of restoration, this game brings back memories, much appreciated.
Thank you for this video. My breakout had the exact same problem (bricks not breaking). I appreciate the walkthrough of the brick logic. I really like your videos (no soldering, just logic troubleshooting). Looking forward to whatever you fix next on youtube
Thanks!
Love these vids, great work as always. These older boards are nice to work on, until all those customs came along. At least you can back engineer PALs and GALs, but full customs 🤢
My first thought with the playfield was a defective ram chip, good thing it was just the resistor cause these rams are hard to find. Gotta love this board with only ttl and no cpu, I am truly amazed how they designed this. And off course kudos to atari for the detailed schematic, makes it so much easier to repair.
As usual nice repair, great job!
Thanks for the video
I got this classic. As true commercial coin-op I think it's only predated by Pong.
There is something like 101 chips on the board. Someone in Atari knew Steve Jobs and asked if he could simplify the design for them. They would pay $500 plus $100 for every chip reduced.
Jobs said sure, but three weeks later he had gotten nowhere. Then he asked Wozniak for help and said they could split the $500.
Wozniak stayed up for a weekend and came up with a design of only 50 chips doing the same game play.
Jobs gave the design to Atari, never mentioning the chip bonus he pocketed $5350 for himself and gave $250 to Woz.
It laid the foundation for their later breaking, but never made any change to Breakout. Wozniak's design was so advanced that Atari didn't have the tech to produce the multi layer board required.
Sean, happy 4th to you and the fam! Thanks for posting all these great videos and keep up the great work.
@@alansmithee183 thank you and happy Fourth of July to you and yours
@@classicarcaderepairs4818 TY. It was nice
Wow awesome!
They must have originally built these with Fairchild parts...hence the odd part numbers on some of the chips in the diagram...
BTW Unicorn Electronics has lots of 82S16s.
I wonder what former Atari employee and creator of Breakout Steve Wozniak would say if he saw this video!
Hey..could u please do a tutorial on setting up a vector image to show on an oscilloscopes?
Could you isolate the lock and key circuit and just pull the Cpu and PPU low and high with a generic circuit?
So, is there no CPU or ROMs on this board? It's all logic driven?
Do you work on arcade1up pcb boards or know anyone who does?
@@GoldMineArcade I do not, nor do I know anyone that does… Sorry