$100 Double Dragon Craigslist score! - Repair and Tuneup

In this video we score a Double Dragon on Craigslist for a mere $100!
The game was DOA so we go through the process of fixing power supply, monitor and any/all PCB related issues.

[@fookutube501]

Awesome,you learn something new every day,''distill water''.First i know nothing about circuit broad or in side a arcade game,but its bloody awesome and interesting watching someone who does!!...

[@American_Made]

love the videos. Thanks for sharing and putting in the effort. I'm just getting interested in maybe fixing an old machine. turning 50 this year. feeling nostalgic.

[@Beaps73]

hey Adam, great pickup and fantastic in site to how the schematics work. DD is such a classic and brilliant game. over here in the UK the board alone is $180 so that's a crazy bargain right there.

[@Darryl603]

Awesome video! I like what you did at the end with you and John. lol Thanks for sharing and see you in the next...

[@GadgetUK164]

Thoughly interesting repair! Have to admit I love your channel! The end result was excellent! I would be tempted to get new Vinyls for the sides if possible.

[@ThatTimGuy]

Nice tips on adjusting the monitor Adam. You made it look effortless!

[@Johnsarcade]

Nice work! The thing looks GREAT. And funny putting me in the marquee. HA HA. :)

[@tordyvel78]

Love your repair videos! Awesome! 👍 Cant wait for next one

[@bobbyjack8033]

Nice score on the road blaster and mario man! the bonus stuff rocks too, I love the icing on top! lol

[@phil_j415]

Amazing and very informative as always. Thank you for taking the time to share your knowledge.

[@MrHarney]

thx adam great vid love the tech talk side of things :) I use to spend hours calibrating screens oh fun times in the trade..was never happy until it was perfect

[@dvv45]

Great Game!! used to play it a lot in arcade. Great buy for 100. never get those deals here in Iowa. Enjoy Adam

[@firebird8600]

Dan van voorst I'm also an Iowan, and back when I was in middle school, I worked during the summer at a laundromat/arcade that my uncle owned in Grundy Center. He never paid more than $200 per game. I wish that it was still the 90s.

[@aarondaugherty9181]

Do you have any videos on just the wiring for the power supply for this game? I have some disconnected wiring and don't know how to trace it down to correct connector

[@kevinbradley]

Nice! Would love to see a tour of your gameroom!

[@detonateasplode]

Woooow, that's in really good shape. I'm right around that area too and every time I check I always find junk. Guess I need to scour CL more ahah.

[@sodasic]

Awesome video and a fantastic game- I have one in my garage too

[@Flanneryshanedward]

Great video really enjoyed that. a real piece of history there with dd. 🖒

[@TortureBot]

Great video. Always liked the Taito cabs.

[@vintageclubjunkie]

Great video... on a "Allied Leisure" note... any luck finding the red LEDs for the score displays? I'm tuning up a Take 5 cocktail pin and can't find those display LEDs anywhere.

[@KmanSweden]

Thanks for another awesome video.

[@SkyCharger001]

The dark green issue: for a moment I thought that it could be a case of the colors being adjusted for a sync-on-green monitor where 0 on green would be blacker-than-black.

[@deemee666]

Great video Adam! and great tips too, like the distilled water technique... I got a rare question. What modules do you have installed in your 16500b? and what probes are you using? Thanks!

[@onecircuit]

I have an HP 16532A scope card and a couple of HP16550A logic analyzer cards.

[@jumpingeneral]

Do you still have the dragon on your collection? How’s it working ?👍👍

[@EdwinNoorlander]

Thanks Adam👍🏻

[@arkhamb6406]

What are you using to generate the test patterns to the monitor for adjustment? And if its something costly do you have a cheaper recommendation?

[@provato8]

Great video, I just finished watching all your videos! Do you want to share which test pattern generator you are using? Yours seems perfect for CRT adjusting, And I find it hard to choose one on ebay.

[@bryanspocketchange]

Adam did you have a video posted a new video on pole position? I had thought I ran across it. Did I see one that you might have pulled? I am very interested in this project and would lone to be kept informed of its progress thanks

[@rlenk702]

Thanks Adam for the Double Dragon video. Your videos are very technical and informative. When you replaced the RAM for the color issue you were having, the PCB had 55ms speed silkscreened. The chip you put in, if the RAM chip has faster access speed, does the chip slow down to 55ms or does the RAM chip causes those other chips (L153?) to overdrive? Maybe I have it backwards from what you did. LOL

[@onecircuit]

The CPU says "hey I need this data" and the RAM responds with the data after a specific amount of time. This time is fixed depending on how the chip was made. Some faster.. some slower. Too slow... and you miss your window.

[@SkyCharger001]

I've learned that the timing stated on chips is what is guaranteed over the entire production-batch and does not necessarily reflect the specific chip.

[@jumpingeneral]

How’s the dd game doing ?

[@thejunkman7581]

One of my favorite games. I like the coin up board :0)

[@supergameboys8793]

Can you also use distilled water to clean monitor boards?

[@onecircuit]

+Super Game Boys Yep you can use distilled water to clean any form of electronics. Just be sure it's completely dry before firing it up.

[@plowking813]

so satisfying

[@jumpingeneral]

Any new videos coming soon? What’s up?

[@BuxProduxshuns]

Great work as always Adam! Can you post a link of where you acquired the "donkey kong" schematics? I have a DD pcb that I would like to tinker, Thanks again!

[@onecircuit]

I believe it was here: www.jammarcade.net/schematics/

[@timm_3r]

5:18 - A whistling cap?

[@Floydzabarber]

Great video Adam! One thing I was wondering is, when you pour distilled water on the board, do you use a brush of some sort to scrub it as well?

[@onecircuit]

+Floydzabarber Yep I typically use a toothbrush. Works great.

[@Floydzabarber]

Thanks, I can't wait to give this a try on some boards I have laying around. One last question if you don't mind, how long does it typically take for a board to dry?

[@HappyAtom]

+Floydzabarber I finally did my first dishwasher board cleaning and it worked great. I don't know if the Heated Dry feature on the dishwasher is bad for boards so I didn't use it. Instead I blasted off the remaining water with my air compressor. I also removed the flyback before I dishwashered the chassis board.

[@onecircuit]

+HappyAtom Was it running distilled water though?

[@HappyAtom]

+OneCircuit No, just a light cycle with no soap and regular house water with no water filters. I have heard others talk about it but never saw it done. The board was really nasty going in and came out nearly spotless. I admit I'm still a bit apprehensive about the process. Thanks for the videos Adam. Don't change a thing. It's rare to find someone like you with skill at savant level who also takes the time to share it with the rest of us.

[@jimmychoijimmy]

great video!

[@SpiritsOfWarding]

Where do I get those wonderful toys? And how much should I look to pay? ie. Logic analyzer, light probe, etc........And which models should I get?

[@SpiritsOfWarding]

And the test pattern generator?

[@PurpleFoxArcade]

Crafty Mech TPG sold at Mike's Arcade.

[@utubepunk]

What a score! When you picking up Double Dragon II? 😁

[@SpiritsOfWarding]

Also, did I miss it or did you say why your test screen was upside-down?

[@SpiritsOfWarding]

And I thank John for getting me here. You are a wealth of information.

[@onecircuit]

I figured it out after the video. There's a dip switch setting that will allow you to flip the image. Still not sure why it shows but differently between the 2 setups though.. would imply that the monitor orientation in the cab itself is wrong.

[@bigun89]

12:41 - I was with you all the way until I saw this....

[@michaelquattrocchi1757]

I'm wondering whether the original owner occasionally played the game with wonky colours for a few years, just thinking the game was "getting old", until the power supply eventually died preventing any more use.

[@obigonzalez]

What is the size of the monitor

[@onecircuit]

19 inch

[@obigonzalez]

Wow thanks for the info. I asked because it looked like a 25'' monitor

[@toomuchseriousness]

:) great final screen

[@Riz2336]

Good job, nice deal for a hundred bucks

[@unorthdoxcleric6953]

Man I wouldn't have been able to give the guy the money fast enough.

[@MaximRecoil]

If you haven't already, you should take a close look at that ground rail thing (I don't know what it's actually called) on the boardset. I have a Double Dragon boardset, and that rail had several breaks in it that weren't obvious without looking closely. The game still worked fine, even with those breaks, but I figured it was best to fix it anyway. A few of the legs had broken, plus there was a break in the main body of it. Here's how I fixed that main body break: i.imgur.com/UZo8wAl.jpg For the broken legs, I removed the solder and broken sections of legs from the through-holes, then soldered what remained of the legs to the through-hole pads from the top side.

[@xHECZx]

just gave a like for the intro XD

[@ericksaenz2252]

awesome !!!

[@hannonm]

nice bad ass terminal strip.

[@chrisgravelle4850]

OMG Adam you lucky dog

[@uhfnutbar1]

Srew the Double Dragon you should have work on the pinball :)

[@azariayehezkel9064]

Its "unnormal"how do you know all that staff I cant understanding this Its not related. :-)

[@wilder9777]

ARCADE best power

[@andrewlee88]

very jelly!! im looking for a ddII Just for the side art!!! had an EGM mag cover of that when i was a kid! check out my channel!

[@benoit1335]

great video!