BACK TO LIFE! 🩺 ❤️🩹 Q*bert arcade restoration part 2: power supply, harness, monitor, & main PCB
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THERE’S A Q*BERT LIFE SCREEN COMING UP! In part two of the restoration series, Charlie squares away the power system & main PCB in order to attempt an initial system test on the work bench. The result? Q*bert is officially back from the dead!
Episode #55
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Many thanks to my buddy Del from @delsarcade for the great deal on a working Q*bert main PCB!
Tools & parts used in this video (contains affiliate links)...
- Fluke 117 Digital Multimeter amzn.to/3CKpACT
- Fluke AC175 Alligator Clips for Multimeter Test Leads amzn.to/3XcRhMi
- Klein Tools 11061 Automatic Wire Stripper amzn.to/3MBPD2q
- Iwiss SN-2549 Ratcheting Crimping Tool amzn.to/3D6XqlM
- Bertech Soldering Workstation Mat amzn.to/44VlvHb
- Hakko CHP-170 Micro Cutters amzn.to/3TLxP7t
- Leviton 2-Pole 3-Wire Replacement Grounding Plugs amzn.to/3OHpbpn
- LUXOR LE27-B AV Utility Cart amzn.to/3HCFn94
- 10 Pieces and 5 Colors Test Lead Set & Alligator Clips ebay.us/cKxhvW
- CraftyMech TPG Test Pattern Generator www.mikesarcad...
- CraftyMech TPG Cables with Standard & Nintendo monitor adapters www.mikesarcad...
- 12″ Non-Conductive Fiberglass Monitor Adjustment Tool www.arcadepart...
- Gottlieb MA-303 & MA-430 Power Supply Mega Deluxe Rebuild & Cap Kit www.arcadepart...
- Molex 4 Pin .093 PCB Header Female Plug www.arcadepart...
Theme Music Credit: "Synthwave 80s" by AlexiAction (used with permission under the Pixabay License) pixabay.com/mu...
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Additional Music Credit...
Kick Shock by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. creativecommon...
Source: incompetech.com...
Artist: incompetech.com/
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#arcades #restoration #arcaderestoration #retrogaming #arcadegames #arcadecabinet #classicgaming #qbert #gottlieb
Пікірлер: 24
Hi Charlie. Couple things I wanted to add. When testing power supplies, you must load it down to get an accurate view of what it is doing. A supply can, and most time will read a good +5 rail, but when loaded it will sometimes drop to ~ 1VDC. This shows an open in one of the regulatory transistors/pass element. I always run a 25W 5ohm power resistor (edit---needs to be a 1ohm resistor--see comment below) across the 5V line to load it to 5 amps of current, an ~22 ohm 25W resistor across the 12VDC line to load it to ~ 550 Ma. This by the way is how you have to test the "big blue" caps as well. When they are loaded, and in a working condition is the only time you will be able to see if it is properly filtering. If you do not load that 5V line, you will never see ripple across a "big blue" cap.
@overtimearcade
11 ай бұрын
Thanks, Sean -- great tip! These load-test resistors should connect the 5V/12V rails to ground, right? Also, any advice for testing the sound board here? Thanks again!
@classicarcaderepairs4818
11 ай бұрын
yup.. connect right across the rails to ground. As far as the sound board. as always start with proper voltage. then move to socketed chips...there is a 6502 cpu and a 6532 riot chip. after that its a whos who of random ICs.. couple 741 amps and some 74 series stuff.
@overtimearcade
11 ай бұрын
Thanks - you rock!!
@z0ner69
11 ай бұрын
Hi @classicarcaderepairs4818, wouldn't a 5ohm resistor across a 5V output generate 1A or 5W?
@classicarcaderepairs4818
11 ай бұрын
yes. you would need a 1 ohm resistor across 5v to produce 5 amps.. I may have mis-spoke. I use four- 4ohm 25W resistors in parallel to get to 1 ohm, and dissipate the heat over the 4 resistors instead of just one.
I appreciate your long-format videos, Charlie.
@overtimearcade
11 ай бұрын
Thanks - I appreciate the kind feedback!
Thanks to this video I didn't even need to refer to the schematic when testing my qbert power brick. woohoo!! Also, similar to what @classicarcaderepairs4818 said...I wanted to mention when testing for ripple voltage, be sure to do so under load.
@overtimearcade
9 ай бұрын
Thanks for the tip and glad I could help!!
Govee makes isometric cube-like interconnected wall RGB LED panels that look just like Q-bert cubes called Glide Hexa Pro lights. I've been seriously considering getting a couple sets (comes with 10.) You can configure the colors of each face of the cubes and set up patterns and themes. So you can make a wall display that looks just like Q-bert, with the cube faces changing colors as if Q-bert is jumping along. For added fun, could add Q-bert, Coily, Sam, and Ugg stickers. My only concern with these relatively cheap panels is the proprietary software. :/ How long will I be able to configure the panels once the company goes out of business or refuses to update the software?
@overtimearcade
11 ай бұрын
I’d love to see photos/video of that if you get it up & running!
Awesome I can’t wait to see it come alive
@overtimearcade
11 ай бұрын
Thanks, we’re making progress!!
Nice the PCB worked! Enjoy!
@overtimearcade
11 ай бұрын
Thanks for the assist, my friend!
Think Peter scared a lot of people when he closed the store for the holiday.
@overtimearcade
11 ай бұрын
I had a mini panic attack!
I liked this video.
@overtimearcade
11 ай бұрын
I LIKE THIS COMMENT