Guys I need some advice.
Today I was moving my consoles to a new shelf, rearranging the cables and power supplies. I made the stupid mistake of plugging my NES AC 9v power supply into my RetorN3 NES/SNES/Genesis famiclone and turned it on for about five seconds before realizing what I had done. Sure enough, it doesn't work now. The RetorN3 uses a 9v center pin positive DC plug.
Is there anything I can do to remedy my mistake? The RetorN3 has a standard 7805 voltage regulator which I'm assuming is kaput. Would replacing it restore the system to working order? Anything else? The system never exploded, popped or started smoking and I I've immediately taken it apart and examined the boards and don't see any signs of stress, burns or other damage.
I feel mad at myself, but it was honestly a simple mistake and I'm hopeful I can correct my mistake rather than calling the system a write off.
One second is more than enough: Once you hit that power button, the circuit is complete and the damage is done... On a positive note, I presume it is a fuse-protected system... Take some close-up photos of every part (both sides0 of the PCB if you can and post them. If it has a fuse, chances are that all you'll need to do is replace (safer) or jumper (less safe) it. If you jumper it, the main concern will be that if you ever plug an AC9V power cord into it again, it'll damage something important.
I also suggest buying some plastic paint, model paint, or something along those lines and painting the tip of your NES/9VAC power adapter's tip (the part that plugs into the system) yellow. Red tips are used on the FDS PSU and Blue on some PAL NES PSUs, but yellow is not used and would prevent this from ever happening again, as the colour would tell you in an instant, 'stop!'... That, or put it away and only use 9-10VDC adapters on all of your systems; the NES can use a Famicom-rated PSU, as can a MegaDrive or Mastersystem, so you can use one type across all models.
It's for this reason that I love these RS power supplies that I stock & use myself: They work on everything, and have adapta-plug tips for the FC, Megadrive-2 and SNES, so they're truly universal. I only need additional PSUs for Atari/Coleco stuff: The 7800, especially.
When you post those pictures, I, or whoever beats me to it can help ID the damage, if at all possible. The 7805 is unlikely to be the problem. :bomb:
hm...looking over the boards, I see something I'm assuming are fuses that I am assuming are the problem. They're boxy horizontal cylinders. On the NES daughterboard there is one is labeled SJC21477B. It looks fine. On the Genesis/SNES board there's another labeled RJH143181A. Looking it over, it looks like it received the damage as it's slightly rusty looking compared to the others. The same is true for another one on the SNES board labeled F01214772A. This one looks the worst of the two. There's also another one labeled RJH24576A on the Genesis/SNES board, but it looks fine.
So the bad ones look like they're
RJH143181A
F01214772A
What are these parts I need to replace?
Can you post a pic? I can't imagine that there are multiple fuses in the system. Those part numbers don't sound like fuses either. I'd suggest you first test your voltage regulator, even if it physically appears okay, since that's the likely culprit along with a capacitor, resistor, and maybe protection diode.
alright. I'll post a series of pics shortly.
I accidentally did the same to my famiclone, but it still works. Is it of better quality?
okay picture dumping
http://www.flickr.com/photos/30701966@N04/5486951165/
http://www.flickr.com/photos/30701966@N04/5486912155/
http://www.flickr.com/photos/30701966@N04/5486909655/
http://www.flickr.com/photos/30701966@N04/5486910843/
http://www.flickr.com/photos/30701966@N04/5487513220/
http://www.flickr.com/photos/30701966@N04/5486925655/
http://www.flickr.com/photos/30701966@N04/5487508308/
http://www.flickr.com/photos/30701966@N04/5487510266/
http://www.flickr.com/photos/30701966@N04/5487511690/
http://www.flickr.com/photos/30701966@N04/5486922519/
http://www.flickr.com/photos/30701966@N04/5486920485/
close ups of the components I suspect have gone bad:
http://www.flickr.com/photos/30701966@N04/5486923457/
http://www.flickr.com/photos/30701966@N04/5486924279/
This is completely irrelevant to what you need but I'm dying to ask.
Is that console any good? It would be nice to finally have an all in one system, but I hear very bad reviews about sound and gameplay issues.
Those don't look like fuses; they look more like crystal oscillators.
First, plug in your ac adapter and check the input & output pins on the voltage regulator. If it outputs 5V, work your way through the circuit and to see where the problem is. If there's input, but no output on the voltage regulator, there's your problem. If there's no voltage on the input, trace back and see if there's a fuse or something inline before it.
Quote from: MS-DOS4 on February 28, 2011, 06:53:26 pm
This is completely irrelevant to what you need but I'm dying to ask.
Is that console any good? It would be nice to finally have an all in one system, but I hear very bad reviews about sound and gameplay issues.
Yeah, the RetorN3 is actually pretty excellent, which is why I'm hoping I can fix mine without having to buy another.
Here's my review: http://satoshimatrix.wordpress.com/2010/11/28/hyperkin-retron-3-review/
satoshi I don't want to be a bringer of bad news, but I don't think you will be able to repair it by yourself. Those crystals you are pointing out are not likely to go bad by the thing you did, I suspect that some of those small (1-2mm) transistors (3 "pins") on the smaller board are blown. Plug the power adapter (correctly this time) and measure voltage on the plug itself (to see if the adapter is ok) and then on the 7805 ( http://jpx72.detailne.sk/modd_files/fc/avmod/7805.gif ) if it's getting the correct voltage and outputs +5V.
Thanks for the help guys. i got it fixed by replacing the voltage regulator.
I have a similar experience with one of my famiclones, the voltage regulator (or "7805") was blown but everything else was Ok. But it went out in a real explosion which teared out a huge part of its ceramic body :crazy:
Quote from: satoshi_matrix on March 01, 2011, 12:08:07 am
Quote from: MS-DOS4 on February 28, 2011, 06:53:26 pm
This is completely irrelevant to what you need but I'm dying to ask.
Is that console any good? It would be nice to finally have an all in one system, but I hear very bad reviews about sound and gameplay issues.
Yeah, the RetorN3 is actually pretty excellent, which is why I'm hoping I can fix mine without having to buy another.
Here's my review: http://satoshimatrix.wordpress.com/2010/11/28/hyperkin-retron-3-review/
Hey satoshi_matrix, I read your review and it kinda makes me want to get one. Although I saw you wrote that it doesn't play PAL genesis games. Is there a way to circumvent that?
Also if it doesn't play PAL genesis games will it still play PAL NES games?
And a third question :D Will it play Famicom games if they are inserted into the NES slot with an adaptor?
BTW: Awesome reviews you got on your blog, love reading them, keep up the good work! :pow:
Quote from: Kiddo on March 02, 2011, 01:28:06 pm
Although I saw you wrote that it doesn't play PAL genesis games. Is there a way to circumvent that?
It's been a while since I wrote, but I'm not sure I said it won't play PAL Megadrive games. The problem is Megadrive games made after 1992 or so were region locked. The region lock is in the game cartridges themselves, not the system. The RetorN3 has a region switch on the back, but it only switches between NTSC-U (North America) and NTSC-J (Japan). There is no PAL setting, although it should be possible in theory anyway to wire up a region switch to allow PAL games to run.
There are pass through devices that allow NTSC games to be played on PAL Megadrives, but they're rare and expensive. Alternatively, many games have Game Genie codes to bypass the region protection.
Quote from: Kiddo on March 02, 2011, 01:28:06 pm
Also if it doesn't play PAL genesis games will it still play PAL NES games?
Probably, but remember that the NTSC version is 17% faster than the PAL version, meaning all PAL games would also be 17% faster. It shouldn't be any different than any other NOAC asked to play PAL games.
Quote from: Kiddo on March 02, 2011, 01:28:06 pm
Will it play Famicom games if they are inserted into the NES slot with an adapter?
Yes, Famicom games work fine, so does the disk system.