Sega Mega Drive II Quick Fix and Cleanup

No video

Sega Mega Drive II Quick Fix and Cleanup

Рет қаралды 16,239

Jan Beta

Күн бұрын

Пікірлер: 84

@Smartphonekanalen 2 жыл бұрын

I have two Megadrive II and both works perfectly. The market has been flooded with these machines and even if they were cheaper done most of the time they works better then the first version. The second one I bought for almost nothing since it had no box and cables. I even got a cool rent box and a RGB-cable. Mega Drive 2 model used a different AV output from the first generation machine, with a much smaller plug design, however it brought the welcome addition of Stereo Audio along with the Composite Video signal (whereas the original Mega Drive only had Mono audio output, and relied on the headphone socket for stereo sound conectivity. If you have a TV with RGN SCART input, consider getting the best picture possible with a Multi-AV to RGB SCART Cable.

@backtogeek 2 жыл бұрын

erm, wow, I totally forgot about that Megadrive, now I feel like a **** writing that on the case/board I don't remember doing it but I obviously did not consider the extra editing, if I remember right it was savaged before I got it and I had so much trouble getting the 7805 desoldered I gave up, fast forward XX months I now understand the value of a quality soldering iron :D great to see it is up and running again!

@pe1dnn 2 жыл бұрын

And we viewers now have to keep guessing what you wrote. I even paused the video but Jan Beta did his job well hiding it. Bummer.

@TheRetroChannel 2 жыл бұрын

@@pe1dnn Pretty sure the one on the board says FUN, because that's what you have when trying to desolder that 7805 and heatsink

@anthonysmith3152 2 жыл бұрын

@@pe1dnn it rhymed with ducked

@neohideo 2 жыл бұрын

I had MD II in the 90s and love this console forever!

@philipboggs3372 2 жыл бұрын

Awesome repair. I love seeing this stuff fixed. On my model 1 and model 2 Sega Genesis consoles I had the same issues with the reset button and ended up sourcing a new button for both of them.

@Dwarfboysim 2 жыл бұрын

Another great video Jan. I thoroughly enjoy watching them lots of variety and plenty to learn.

@SolKnightt 3 ай бұрын

Thank you so much for putting this video out! I greatly appreciate the parts about removing the voltage regulator and fixing the reset button. :)

@JanBeta 2 ай бұрын

Hope it helps! It's certainly not very trivial to remove/replace the voltage regulator (as presented in the video). :D

@DD-jk3nf 2 жыл бұрын

Hey Jan. When removing a regulator that's bound to a heatsink, get the hot air station out and warm up the area around the regulator, primarily the ground plane, then if you can prop station nozzle so its blowing on the heatsink while you work on the pins makes life far easier 👍

@andrewclegg9501 2 жыл бұрын

I just snip the legs of the regulator as close to the body as possible, pull the legs out of the board when the heatsink is off.

@InfoDav 2 жыл бұрын

Seconded, hot air + iron works magic when you are working on heat sinking areas.

@Stefan_Payne 2 жыл бұрын

Fun fact: The old 9/10V unregulated PSU that came with the Mega Drive are really more in the ballpark of modern 12V Regulated PSU. I measured ~14V Idle for my Original Mega Drive Power Supply and 11,75V under Load. Another thing: If you are at around 13,5V or lower at idle and 11,5V and lower under load, you need to replace the 3300µF/16V Cap inside. I also have an old, Linear 12V PSU: unloaded it does 16V. Due to Rippleness of modern PSU, I think it might make sense to replace the Input caps with Polymer or a mixture of Polymer and Ceramic capacitors instead.

@DrTofu83 2 жыл бұрын

On my Master System 2 I'm using a 9V PSU pilfered from a Guitar Pedal and it works :)

@Stefan_Payne 2 жыл бұрын

@@DrTofu83 9V Regulated DC PSU? That can work in some cases, on my SFC, a 9V SMPS didn't work. Though I don't own an Original one, aand can't measure it. And getting ine isn't easy as I need a Step Down Converter too... But I got a 10V Mega Drive one and measured that. And that was around 1,,75V under load, with a new Secondary Cap and~14V unloaded. Someone with a US NTSC SNES measured the no load Voltage for me and it was similar to the Mega Drive PSU.... Though I need to get a FULL BRIDGE RECTIFIER Inside the SFC. Also, something that might be important for use with modern PSU: you might want to replace the Input Cap with a modern Low ESR or even Polymer Cap.

@DrTofu83 2 жыл бұрын

@@Stefan_Payne Guess I got lucky, or the EU Master System II was somewhat more forgiving. The original 10V PSU died, I had this 9V from a guitar pedal, tried it and it worked with no hiccups

@Stefan_Payne 2 жыл бұрын

@@DrTofu83 How could the Original PSU die though? ;) Its just a lump of Copper and Metal + 2 or 4 Diodes and a BIG Capacitor. That's about it. So my guess would be that your Original PSU should be serviceable, if you still have it. All you need to do is to replace the Capacitor and/or the Diodes (or the Diodes with a FULL BRIDGE RECTIFIER)...

@00Skyfox 2 жыл бұрын

Watching somebody wash dishes in the kitchen sink: boring. Watching somebody wash vintage electronics cases in the kitchen sink: entertaining!

@VincentGroenewold 2 жыл бұрын

I love how they just didn't give useful pointers, but wrote curses all over it, never seen that before. :)

@Jinxnator 2 жыл бұрын

Great repairing video buddy

@TrevorsBench 2 жыл бұрын

If you know the 7805 is defective, a easy way to remove it is cut the pins and later remove the stubs from the board

@VVGRestoration 2 жыл бұрын

Very good repair. I think there must be several different versions of the Mega Drive II. I bought a lot of 3 on Ebay as broken and when I opened them, all 3 of them were different inside.

@root42 2 жыл бұрын

There were multiple revisions, starting at VA0, which seems to be the one Jan has here. According to the net, at least the NTSC version went through several revisions more. I don't see hints at other PAL revisions, though. Might be a good idea to replace the 7805 in my MD2, though...

@brendonelton 2 жыл бұрын

It's not F****d anymore, it's F*****g fixed!

@varganyamuvek 7 ай бұрын

F yeah

@giuseppelavecchia775 2 жыл бұрын

Console stupenda.ottimo lavoro Jan

@BocaRetroGames 2 жыл бұрын

Another great vídeo. Thanks for the entertainment Jan

@lukedougan7908 2 жыл бұрын

Nice job another one saved from the scrap heap 👍

@erinwiebe7026 2 жыл бұрын

A clean & repaired Mega Drive is no longer angry emoji!

@MacMelmac 2 жыл бұрын

Oh, I see evil Bert is keeping an eye on things!

@terosaarela4555 2 жыл бұрын

Nice work, Jan!

@noobguy57 Жыл бұрын

The z80 was often thrown in to that large ASIC chip, starting with the 315 label. Originally on model 1s it was just the VDP but later down the line they put more and more components into that ASIC.

@Radiocruncher 2 жыл бұрын

Great job Jan. I’m looking out for one of these myself as I have fond memories of playing Sonic the Hedgehog back in the day

@brendonelton 2 жыл бұрын

Plenty of them about, especially on facebook market place, usually selling quite cheaply as well! 👍🏻

@Radiocruncher 2 жыл бұрын

@@brendonelton nothing near me atm. Still looking

@RDJ134 2 жыл бұрын

Great video, mine only showing a black screen atm. Got it from my brother who got it from a shutdowned Coffee Shop he needed to clean up en empty the building) and as you know people smoking a lot (of weed) in there. No PSU (u can use a PlayStation One PSU, same voltage), no Games but came with a Atari Joystick. Bought two games, but still black screen, got IPA recently and soon as i have the time i will clean out the Cartridge slot and the games with it and i hope that it works then :)

@jaycee1980 2 жыл бұрын

For things like that regulator, preheating the board (and heatsink) with hot air works wonders. For the damaged ground pad.. im not actually sure why they bothered to use a plastic-cased 7805 here. The heatsink is connected to ground, and the centre tab of a TO-220 is connected to the middle pin - also ground!!

@blitzerblazinoah6838 Жыл бұрын

Some later official Mega Drive 2 PAL consoles had Z80 functionality removed although. It would say so on the front of red coloured Mega 6 console boxes.

@alisharifian535 2 жыл бұрын

Back in those 199? Days,having a Sega mega drive was a virtue😀 for a kid and gift from heavens,not everyone as a guest was elligible enough to touch the precious Sega😂.good old days are gone for good,you know...

@meh3247 2 жыл бұрын

Nice to see that I'm not the only one who writes swearwords on boards that are broken! (The code I write isn't for the "sensitive", either! (MANY curses in comments!))

@smk242 2 жыл бұрын

Thanks for another nice video Jan; when you first opened the case I thought "someone has already replaced all (electrolitic) capacitors', that's how it looked to me. Are you sure those are the original capacitors?

@JanBeta 2 жыл бұрын

Pretty sure. They are from the nineties (judging by their design) and there are no signs of resoldering on any of the capacitors as far as I can tell.

@naderhumood1199 2 жыл бұрын

Terrific keep it up.....Thanks v much.

@ZonicMirage 2 жыл бұрын

Not to be rude, but this MD2 board does actually have a Z80. While a Toshiba clone in this case, it's the tiny square chip near the Sega logo and "PC BD MD2 VA0 PAL" text.

@hollgo626 2 жыл бұрын

Wenn du das Gehäuse zum Schluss mit ein wenig Cockpitreiniger abwischst, sieht das Gerät am Ende noch einen Tick sauberer aus. Das Zeug entfernt zumindest die kleineren Kratzer ziemlich gut....

@purrator 2 жыл бұрын

That reset button is a PITA. It's on the Master System II as well

@cue101 2 жыл бұрын

Thanks

@al.d9592 2 жыл бұрын

Gute Arbeit! Du brauchst echt mal ne Lupe. Am besten eine kosmetiklampe. Hilft auch bei SMD Arbeiten

@andreas_71 2 жыл бұрын

Hallo Jan, 7805S ist die isolierte Version des Reglers. 78S05 ist die 2Amp. Version. Bei dieser Reparatur scheint es egal zu sein, aber wenn mehrere Spannungsregler (z.B.: 7805 und 7905) mit dem selben Kühlkörper gekühlt werden, dann musst du die Spannungsregler isoliert aufsetzen!

@kaschtelator 2 жыл бұрын

jetzt will ich wissen was auf dem Shield & Board stand

@s.k.5919 2 жыл бұрын

16:42 😉

@josehereter4062 2 жыл бұрын

At least a New video!!!

@douro20 2 жыл бұрын

The device which looks like a hybrid is a jumper pack for setting the region code.

@bweebar 2 жыл бұрын

No, it's a capacitor array on the data bus. They must have had problems with noise on that bus.

@kaitlyn__L 2 жыл бұрын

I know you meant channel/tunnel, but I keep thinking about a version of the Channel Tunnel inside the plastic now

@JanBeta 2 жыл бұрын

Haha, that would be an interesting "feature". :D

@jorgelotr3752 2 жыл бұрын

16:00 there was a diagram for the pins engraved on the plastic part of the plug.

@JanBeta 2 жыл бұрын

Yep. I only realized that when I edited the video... :D

@MikaB1302 3 ай бұрын

I got a question: On my own sega mega drive 2 I have the white letters with some yellow. So if I start a game and play it the white parts are yellow. Has this something to do with the power regulator or the capacitors? It also becomes hot on the left side on the cartridge where the power regulator is. Should I replace it?

@Doomchild2XL 2 жыл бұрын

Wenn Du das Spülbecken so voll machst, sind die drei Spritzer Spiritus doch auch irgendwie egal, oder? 😁

@arifw.a.r6151 Жыл бұрын

Help mr. sega mega md2 when playing a few minutes freeze/stuck scren

@psteier 2 жыл бұрын

You have to be carefull cleaning the case with IPA... Because the labels printed on it could vanish...

@Stefan_Payne 2 жыл бұрын

Does the Mega Drive 2 also require Center negative PSU??? That's why I put in a FULL BRIDGE RECTIFIER in my two Mega Drive 1. So I can use modern SMPS.... And I also replaced, what I think is the Input capacitor, a 16V/220µF one, with a 470µF Nichicon on one and a 1000µF Kemet A750 in the other one (because i was out of Nichicons)

@GGNOREUK Жыл бұрын

I'm trying to find online, sorry if you mentioned it in the video, but when was the mega drive 2 released?

@SproutyPottedPlant 2 жыл бұрын

One can guess what is wrong with a Mega Drive, they seem to only break in those ways and the caps they somehow haven’t gone bad yet!

@varganyamuvek 7 ай бұрын

Hello Jan, I have a question. I think You live in a PAL (50Hz) region. But when You showcased the console, the game was running at 60Hz. What happened?

@miroslavkaticic2965 2 ай бұрын

I can't believe this shit, Jurgen Klopp is fixing sega mega drive!!!

@twocvbloke 2 жыл бұрын

Ah yes, it seems that they used the technical terms to describe its' operational status... :P

@gammaphonic 7 ай бұрын

Haha, I had Winter Challenge back in the day. What a crap game that was.

@andrewlittleboy8532 2 жыл бұрын

That reset button can be replaced with a much better tactile button.

@eddiehimself 2 жыл бұрын

Zerbrochen is more like "smashed" I guess you would say.

@JanBeta 2 жыл бұрын

Indeed. I guess "kaputt" or "defekt" would be the proper German word in this context. :)

@eddiehimself 2 жыл бұрын

@@JanBeta *Memories of the guy from Oomph shouting "Defekt!" repeatedly for 6 minutes straight intensify.*

@Nukle0n Жыл бұрын

8:20 was afraid you were gonna stab yourself with that screwdriver, i've done stuff like that...

@dawn1berlitz 2 жыл бұрын

here in the us we call it the genesis instead of megadrive and im not actually sure who came up with the idea

@VVGRestoration 2 жыл бұрын

It's because a company in US called "Mega Drive Systems, Inc." held the trademark for "Mega Drive" in the USA for use with "computers and data processing equipment". So they had to give it a new name.