Fixed a few DK's for Whitney over at The Broken Token (www.brokentoken...) These guys have a great Arcade and Pinball related podcast so be sure to check them out!
Fantastic work! You're such an intelligent guy with all these repairs and you still seem like a very kind and well-tempered person. It's a joy to watch you work!
Hey Adam, is there an easy way to figure out which memory addresses belong to each pair of chips? ie…. how was it determined that 6000-63FF was associated with 3C/4C, etc.. I have a DK Jr. that's giving me an issue @ 6BFE and with your help cheat sheet, I now know that its a fault in 3A/4A.....how could I have come up with that on my own?
ruclips.net/video/B01a1XNzssY/видео.html I’m having a weird sync issue with mine that comes and goes which I have narrowed down to the PCB. I have the 4-stack TKG-3. I can get it to go away by adjusting the H-pos pot but it eventually creeps back. I have tried several pots and the issue keeps coming back. Have you ever seen this before? Any suggestions on what I can try to fix this? It’s like there is a horizontal shift (vertical when viewing) of different sections of the screen and where there’s movement on the screen. Doesn’t happen with static screens...
What do you know about the SMS JOKER POKER boards from the 80's have some but have no schematic or any kind of info on these boards would love to get in touch with you and show you the boards im talking about
I too have to say how well you explained how things work. I don't necessarily like the clipping of the pins on D0, but I don't know how else you would isolate the signal. Still great job! Thanks
Just found this video as I’m troubleshooting an issue with a DKjr. You pointed out in the schematic an area that controls the locations of where the sprites go. Can you let me know which area that was, it’s hard to see in the video, I’m guessing 7K, 8K on the video board? My issue is that randomly the blue snap jaws are bouncing all over the screen, but sometimes they work fine. I’ve replaced a ton of stuff, but no fix yet :/
That's not as bad as I was expecting to be honest, being Fluke and pretty bespoke in this era. No doubt it has paid for itself many times over, if not in a monetary sense than a sanity saver!
Quality work as always! I was thinking you might have been able to find the stuck bit 0 line by shorting it to ground and seeing which chip gets warm or has a slightly elevated voltage reading on that pin. Clipping and patching a few pins is no big deal, though. I'm really starting to wish I had a Fluke; it sure made short work of that RAM problem. Anyway, best of luck on your trip!
Great video Adam I know must boards are sent in but it would be good to see maybe a street fighter 2 or other boards from that era Also would be good to see how the so called rainbow street frighter boards were done I believe they where hacked to allow other abilities to be done characters
In most cases you can, but not always. You can't, for example, find a Ricoh RP5H01 or RP5C01 on Mouser or Digi-Key, because they haven't been manufactured in a long time.
Hey Adam - I love your videos! I tried contacting you on your site about one of my DK boards and never heard back... I know you're probably just busy and all, but would it be easier to contact you on KLOV?
Absolutely! I have video of the graphical glitches I am experiencing. The issues are happening on pie and elevator stages, so it may be harder to work on since you'd have to go to those stages to see the problem. I have video of what it is doing.
thanks a million I found with that tip. Part number 206-0364-01 SMT KlipChip™ Adapter (Used with 0.025-Pin Receptacles). And the data sheet www.tek.com/datasheet/surface-mount-device-interconnects
Fantastic work! You're such an intelligent guy with all these repairs and you still seem like a very kind and well-tempered person. It's a joy to watch you work!
Hey Adam, is there an easy way to figure out which memory addresses belong to each pair of chips? ie…. how was it determined that 6000-63FF was associated with 3C/4C, etc.. I have a DK Jr. that's giving me an issue @ 6BFE and with your help cheat sheet, I now know that its a fault in 3A/4A.....how could I have come up with that on my own?
ruclips.net/video/B01a1XNzssY/видео.html
I’m having a weird sync issue with mine that comes and goes which I have narrowed down to the PCB. I have the 4-stack TKG-3. I can get it to go away by adjusting the H-pos pot but it eventually creeps back. I have tried several pots and the issue keeps coming back. Have you ever seen this before? Any suggestions on what I can try to fix this? It’s like there is a horizontal shift (vertical when viewing) of different sections of the screen and where there’s movement on the screen. Doesn’t happen with static screens...
What do you know about the SMS JOKER POKER boards from the 80's have some but have no schematic or any kind of info on these boards would love to get in touch with you and show you the boards im talking about
I too have to say how well you explained how things work. I don't necessarily like the clipping of the pins on D0, but I don't know how else you would isolate the signal. Still great job! Thanks
Its such a great feeling when you repair something like this. :)
Fantastic series of repairs there! Was particularly interesting to see analogue sounds used on those boards!
Hey Adam just curious if you have ever worked on a donkey kong 3 pcb before? Have one that doesnt boot.
Thanks for this video, it helped me fix my DK too!
Adam - The PCB whisperer!
hello can you tell me where i can get the schematic for a cherry mastergame board for repair
Just found this video as I’m troubleshooting an issue with a DKjr. You pointed out in the schematic an area that controls the locations of where the sprites go. Can you let me know which area that was, it’s hard to see in the video, I’m guessing 7K, 8K on the video board? My issue is that randomly the blue snap jaws are bouncing all over the screen, but sometimes they work fine. I’ve replaced a ton of stuff, but no fix yet :/
ruclips.net/video/Gq2pw6UKcLc/видео.html
Really enjoy your videos. I thought it might be worthwhile to explain in your next video how you work out the address mapping for your cheat sheet?
These repair videos are great to watch, keep 'em coming Adam. I bet the fluke cost a pretty penny.
+Jon Simmons (Neffers) I bought that fluke 10 years ago with z80 and 6502 pods for $400
+Jon Simmons (Neffers) I bought that fluke 10 years ago with z80 and 6502 pods for $400
+Jon Simmons (Neffers) I bought that fluke 10 years ago with z80 and 6502 pods for $400
That's not as bad as I was expecting to be honest, being Fluke and pretty bespoke in this era. No doubt it has paid for itself many times over, if not in a monetary sense than a sanity saver!
Quality work as always! I was thinking you might have been able to find the stuck bit 0 line by shorting it to ground and seeing which chip gets warm or has a slightly elevated voltage reading on that pin. Clipping and patching a few pins is no big deal, though. I'm really starting to wish I had a Fluke; it sure made short work of that RAM problem.
Anyway, best of luck on your trip!
Great work bud
You better get a current tracer to identify stuck pins faster :) Great job otherwise
The section where you troubleshoot the analog sound problem is amazing! :)
I wish I had your knowledge about repairing arcade stuff :-/
Great video, as usually!
Thanks so much for posting. Absolutely love the education content here.
Great video Adam I know must boards are sent in but it would be good to see maybe a street fighter 2 or other boards from that era
Also would be good to see how the so called rainbow street frighter boards were done I believe they where hacked to allow other abilities to be done characters
Is it actually still possible to buy replacement ICs? Considered that these parts are almost 40 years old...
Oh yeah. TTL DIP parts are readily available on places like Digikey, Mouser and even Ebay.
In most cases you can, but not always. You can't, for example, find a Ricoh RP5H01 or RP5C01 on Mouser or Digi-Key, because they haven't been manufactured in a long time.
Awesome work as always Adam! Good luck in South America :-)
Where's the video of you repairing that third board?
I'm an embedded engineer in the LA area and I find your videos awesome!
i like back your hand sir , its all whh whhh whh hhh whhh whh to me :)
MFing 8 bit sherlock homes
Thank you for another informative video.
Hey Adam - I love your videos! I tried contacting you on your site about one of my DK boards and never heard back... I know you're probably just busy and all, but would it be easier to contact you on KLOV?
Sorry man! Yeah crazy schedule. :p Want me to add you to the repair queue?
Absolutely! I have video of the graphical glitches I am experiencing. The issues are happening on pie and elevator stages, so it may be harder to work on since you'd have to go to those stages to see the problem. I have video of what it is doing.
Great video, learned tons yet again
Lmao, the one dislike
Love these!
what ae your gray test leads called? I like them a lot.
Most people called them "Grabbers" or "Grabbies" I think. Do an ebay search on "TEK grabbers" and you should be able to find some.
thanks a million I found with that tip.
Part number 206-0364-01
SMT KlipChip™ Adapter (Used with 0.025-Pin Receptacles).
And the data sheet www.tek.com/datasheet/surface-mount-device-interconnects