How To Test & Repair Williams System 3-7 Plasma Display Boards - 1977 Lucky Seven Pinball Machine

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Joe's Classic Video Games

Joe's Classic Video Games

Күн бұрын

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Пікірлер: 31
@michaelcalvin42
@michaelcalvin42 Жыл бұрын
I know you probably already know this and were just double-checking the truth table, but any time you see a logic gate with a little empty circle drawn at an input or an output (like with those inverters) it means that input/output is inverting. So in the case of the 4069, the little circle at the output means the output is inverting, and thus it's an inverting buffer. Thanks for recording this repair! I'm sure it will help a lot of people.
@sguttag
@sguttag Жыл бұрын
Another cool pinball repair video. Nice job continuing the methodical diagnostic/repair.
@sside8
@sside8 Жыл бұрын
Good job troubleshooting those display problems!
@markchatt4197
@markchatt4197 Жыл бұрын
Perfect timing with the video that is just what I happen to be working on with my Blackout 🤞🙏
@Bob-sd7qr
@Bob-sd7qr Жыл бұрын
Thanks for the video Ronnie. Hope you guys had a great long weekend!
@MRNBricks
@MRNBricks Жыл бұрын
Nice work. Schematic theory is always fun and interesting.
@jumpingeneral
@jumpingeneral Жыл бұрын
Hey guys happy Tuesday 😎
@rkgaustin
@rkgaustin Жыл бұрын
Anyone else love seeing the front door of the shop at night as kind of a liminal space thing?
@naytch2003
@naytch2003 Жыл бұрын
Recovering from a car accident, enjoy your weekend everyone 🚙
@LyonsArcade
@LyonsArcade Жыл бұрын
Are you sure Hank done it that way????
@naytch2003
@naytch2003 Жыл бұрын
@@LyonsArcade Joe left a note on the car
@casstelles
@casstelles Жыл бұрын
I like the divide and conquer method for troubleshooting. Too many times, people get intimidated by a complex schematic, and they freak out. If you just focus on one component or area, it is often that a person can easily figure out how it works. As the old KISS method states: Keep it simple stupid. Even though this saying may insult people, it is a rather logical way to approach things.
@jk180
@jk180 Жыл бұрын
Joe and Ron, you alwats get a thumbs up from me.
@1971VoiceoftheMummy
@1971VoiceoftheMummy 2 ай бұрын
and another awesome repair vid!
@jasonstanley7596
@jasonstanley7596 Жыл бұрын
Another excellent video! You guys Rule!! :)
@Sewsour
@Sewsour Ай бұрын
Any recommendations on where to start if the tilt comes on and the second ball doesn’t engage any longer? Thank you
@LyonsArcade
@LyonsArcade Ай бұрын
Is it a Williams System 4 or so like this one? You may have a shorted diode on the tilt, or the ball outhole switch, they're on the same column on the switch matrix. So it could be once the ball lands in the outhole, it scores more than one switch, and makes it tilt. The matrix is getting confused (likely)... it may be a bad ic on the column section of the switch matrix on the pcb, or it may be the "PIA" that runs that section. So maybe a board problem or maybe a diode on the playfield (or the tilt bob)
@zyxxy
@zyxxy Жыл бұрын
🎵When he wishes on a star Ron's dreams come true 🎶
@garrymiller8031
@garrymiller8031 Жыл бұрын
One of Williams first electronic pins just after last mechanical Grand Prix
@williamcooper2368
@williamcooper2368 Жыл бұрын
Ron U crack me up brother.
@robertlipsett2535
@robertlipsett2535 Жыл бұрын
I saw how you were worried about using a logic probe on a chip that had 100 volts and rightly so for its sake. I don't know if you remember that a scope can take that voltage and still show you the logic giving out signal. For me the scope is always nearby setup so dragging it out and using takes me little time.
@dnbreyen
@dnbreyen Жыл бұрын
People, if Joe says it’s broke, it’s broke!
@waynegram8907
@waynegram8907 Жыл бұрын
JOE CLASSIC< you mention when the displays have a ghosting problem because of the timing is off. What do you mean by this that the timing is off? because the strobe signal and blanking signal have to be "In sync" which the CPU chip/ROM chip is outputting the Strobe signal and blanking signal there is really nothing else that can alter the timing of these signals. I'm not sure what else would cause ghosting Display errors. Maybe from your experience you have seen certain things that cause display ghosting errors that you can tell me that causes display ghosting errors?
@markjackson1444
@markjackson1444 Жыл бұрын
This machine has got its hands up …. it’s surrendering. …it’s giving up. You’ve got it surrounded Ronnie. … go for the throat!
@williamcooper2368
@williamcooper2368 Жыл бұрын
IT'S BROKE.❤️
@naytch2003
@naytch2003 Жыл бұрын
4am??!! 🥱🧐😴
@lileveretteyoakumiii
@lileveretteyoakumiii Жыл бұрын
Yodelayheehoo
@andrewdonohue1853
@andrewdonohue1853 Жыл бұрын
the displays in my firepower are going bad. 2 of them dont work and the other 2 are on their last legs. i have an XPIN LED set arriving tomorrow.
@2011MoJo
@2011MoJo Жыл бұрын
Let's go!
@harrypapas8710
@harrypapas8710 Жыл бұрын
It’s broke😂😂😂😂
@grandpaseed
@grandpaseed Жыл бұрын
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