Hey all, I'm an electrical engineer that also does retro gaming PCB Designs.
Contact me at my website for rates and availability, as well as cool projects and news updates:
segasonicfan.wixsite.com/retro
Please note: I do not offer free repair advice through YT. See here for more details:
segasonicfan.wixsite.com/retro/links
My videos are usually educational and I try to post about upgrades, repairs and hacks that haven't been given much coverage before. I do this work for free to help people but donations are gladly accepted!
I also have videos on Vimeo: vimeo.com/user61620960
Enjoy!
Пікірлер
Any way to fix the low quality distortion of this amp?
omg thank you so much! the timing issue was the exact thing wrong with this model!
glad it helped! :D
I had that same off brand surge protector temporarily and was highly skeptical of its effectiveness and this video confirms it. I replaced it with an equivalent Belkin. When it comes to surge protectors, only go with name brands: APC, TrippLite, Belkin, CyberPower, GE.
The tip wiggles on mine. I replaced with a new tip and make no difference.
I searched for this becsuse i couldn't beieve the snare drum sound was actually game gear sound. No other game on GG or Master System had a drum that slaps like that. I know GG and Master System couldn't play sampled sound without stopping the action. So they must have pulled this off without using samples.
Not sure if you’re checking comments still but looking for help on the Nakamichi MB1 from same era. My unit has no display lights. Must be burnt out ? I want to see if that’s easy fix? Was that by chance the weird battery you found on yours? Also, where do you recommend buying the 8 inch belts?
Did you manage to implement your upgrade thought and make it work again? If yes, is there a video about that?
**Please stop messaging me about this Mixer** I have offered the repair help that I can with these things, for free, with my videos. If you need help beyond these videos, *please* hire a repair person in your area. Help someone feed themselves and their family.
Hello to you if you can help me please I have a control 24 and for some reason the faders doesn’t move but everything in the mixer is working and there is no control between the Mixer and Pro tools so please what is your advice? Many thanks to you.
do they block UV? itll still degrade otherwise :(
I doubt it, UV resistant transparent plastics are quite expensive. I'm not putting these anywhere near direct sunlight, so I'm not worried about UV degradation myself.
I also have a "Kerpu" spot welder, this one seems to be either a later model or a fancier model. The PCB inside looks almost identical, except mine came with a tiny OLED display on the front, and the battery has thermal paste and metal to thermally bond it to the case.
Cc Radio is an excellent radio.
Hello, I apologize if I don't write correctly in English. I bough a Japanese megadrive (model 1). I have the typical problem of jailbars or rainbow banding. The CRT I have only supports composite video. Also, even if I could use RGB I'm not interested because I would lose transparency effects due to dithering. I also don't want to modify my console. As is public knowledge, typical megadrive cables output a poor composite video, which contains jailbar or rainbow banding. Those cables use a Din8 connector output pin that contains all the R+G+B+Sync signals together. For that reason I want to extract RGB from the Din8 output and convert it to composite video. That is, I want to take the pins that have the R,G,B,Sync signals separately (without using the composite video pin) and introduce them into a circuit that converts them to composite video, using the AD724 chip (or another similar or better). I have found information on how to build a CSYNC SCART cable (which I am not interested in at the moment) so I am clear about which output pins contain the signal that is useful to me. What I need is a schematic to build a composite video output. Do you have any documentation or links that you can share with me? Keep in mind that I do not have advanced knowledge of electronics, so I need a simple instruction that only consists of assembling a circuit and soldering components, like a cooking recipe. I would appreciate any information you can provide me to achieve that goal. Thank you.
Hi there - I am developing a PCB board to convert the sync in consoles to work with AD724/5 and other chips / monitors. It does take technical know-how to install this stuff though, but I will make guides when it is ready for sale.
@@SegasonicfanDesigns I understand, you are developing products to sell. I am geographically far away, shipping costs and tax bureaucracy make it difficult to buy these types of products. I was thinking of building a converter myself from the electronic components from scratch. I am looking for documentation of "open hardware" projects. Anyway, I wish you luck in your business project.
I just wish the screen could automatically change between 50Hz PAL and 60Hz NTSC. I have the PAL version of it and I love it! Apparently you could directly plug in a PS2 as well and it will work just as good. But for that you'd need to mod it (as in break the case to plug it into the PS2 slim) or use a male to male AV extension cable.
You could do it if you *really* wanted. A fairly involved project, and taking apart this screen is guaranteed to mess stuff up (read, glue, plastic slips everywhere, etc.) immerhax.com/?p=779 might be worth the effort if you really want a NTSC screen. You could also pay me to do this mod, but it would probably be more than you'd want to pay. But feel free to reach out!
Putting the chip by the caps is a smart idea.
Too bad you didn't do a more in-depth video about the screen, also did you ever do a follow up with the Pelican screen?
it's an *awful* screen. I gave it more time than it deserved, really. Might do a Pelican review later, but I do all these videos for free in my spare time, which is very sparse nowadays.
@@SegasonicfanDesigns You seem to have quite some knowledge about those kind of screens, as "bad" as this one is, I would have loved to see how much you could have improved it with mods and stuff.
@@SegasonicfanDesigns Btw, do you happen to know what material the screen is made of? I do own one of these as well, but mine has quite some light scratches on it, and I can't tell if it's acrylic or some other plastic or glass.
Hi man, I am aware that it has been 6 years, but I need to know. Do you have any documentation on this mod. Like a GitHub page or something? It would be nice to know how to pause sms on genesis controller. Thanks 👍
I still have the boards available for these mods for sale on my site ;) you need to decode the genesis controller protocol and then use a MUX to switch pin 7 (IIRC) of the input plug
It wasn’t even a question if I would get these for my VBs. Thanks for your work!
How to open the laminator cover ??
Hello, what are the resistor values?my dongle ended up leaving some components
Could these be used for output power like adding chargers to a car
How does the system know where the book is being touched at? I assume another senor up top?
I know this is an older video, would you happen to have a link, or specs for the caps?
the bypass ones? They are standard MLCC. 0.1uF X7R in 0603 form factor.
Played this on my switch, but needed to see if it actually could play on the game gear, because man, there was a lot going on! Very cool, thanks for the video on actual hardware
One of the coolest looking systems along with Super Famicom
Are you really suprised modern shit (especially commie) is designed to shit out so soon!
Hi, what ic amp use? A tda? Thanks
wow, never knew the inside of these are so much involved. I was thinking of doing my own repair on mine, but not now. I have an RCA cable issue I think on mine. I suspect the is something going on with them inside the table.
Thanks for making this video ! Perfect timing! I just got a nomad and the box will be perfect !
Awesome!! welcome to the Sega Nomad club! If it's smaller than a brick, it's not a real portable ;D
I'd like to figure out how to re-pair dongles to sculpt keyboards, mouse, and 10 key. Is this possible? There are a ton of keyboards on ebay without dongles, and they are junk and can't be used w/o the dongles.
i have dell optiplex 3060 micro not turning on , any advice , thank you
Very informative video 👍 I was given one of these. I've put a better speaker in. Was planning on using the aux in rather than the guitar input. I've got an ada mp1 and a boss se70, so would use them as my pream and effects. The boss is switchable between +4 and -10. I'm guessing the -10 would work okay with the aux input?
Hey! Might me a long stretch since its quite an old video, but how did you manage to tear down this early model of the mkII? I have this exact version of the 1200 with the 4-inch rca hole in the back and the single-piece bottom plate and I have been searching for countless hours how to disassemble it. I've got to the point where all the screws on the underside are taken off, but I can't get to detach the bottom plate from the top aluminium plate. With how little information there is online about this specific early version I feel like I'm stuck there and really don't want to break anything. It also feels so much different to the later version of the mkII, I am so happy to have found your channel. Thank you so much!
Hi there, I got mine from a thrift store and it was already kinda messed up with missing screws and stuff. I think the disassembly isn't that different from the newer ones though? There are a bunch of screws on the bottom, then you have to take out the platter and undo the scews below there. Only after you disassemble the two halves of the entire player, can you get to the tonearm screws inside. I recommend looking up service manuals for the 1200, they have lots of detail disassembly instructions. I also have a playlist of videos for the 1200 here. Good luck !
@@SegasonicfanDesignswow thank you so much for the quick response! I’ll try it again with this in mind, I was quite afraid to break something if I just tore it apart at that point. Have a good one!
To the sellers commenting here to cast doubt on my review: Please provide a video of your product without this awful noise, doing the same test. I would love to see it, as would others I'm sure.
the problem is not with this preamp, power source is producing this high pitch noise, change it to something else, use good quality power source with output filters, you'll see a difference
not correct. I am using a clean battery power source which works great for all my audio gear. The noise is clearly from the pre-amp, and you can hear in the video that the designers put in a noise gate to try and filter out the tremendous noise this thing produces. It's clearly an engineering flaw from a cheap overseas product.
This power brick You use is a DC to DC converter, it includes in it's inside a mini power inverter and it makes that high pitch noise. And Yes it is posible that other audio equipment that You use is more resistant to that type of interference, but it does'n mean that this preamp is shit, it just don't filter on its own the shity electricity.
I just wanted to say thankyou for this video. I was having difficulty getting into a Kaiweets KTI-W01 thermal camera (shares a basically identical outer-shell as this HT-18). There were big dust particles trapped under the screen that I needed to clean away. With your video, I finally figured out how to get in there. Thankss. ^^
The metal enclosure shields it from interference. Have you tried it in the enclosure?
Yes. Do you have a video to share of the audio quality without this noise? The issue is not actually interference, it's using a built-in noise gate to try to cover the poor audio design.
doesnt seem like you're too active, but my SlimX is suffering from the same issue (left channel is dead). would be available to do a send-in repair?
Im extremely active - far too busy actually heh. but sorry I dont do repairs of these units, they are nly worth about $30 working. Maybe check out some local DIY places to try your hard at soldering ? :)
@@SegasonicfanDesigns My bad, I was going off of your virtual boy video you uploaded a year ago, my hands are way to shaky for soldering components myself, Ill go look up some DIY shops in my area, thanks for getting back to me!
So, looking at it from your experience, are all amps being made today so crappy? Which makers are better?
90s amps are a particular low point, as are fenders honestly, by todays standards. I buy JBL gear and like their stuff a lot. You wont see it on my channel though, because it doesnt really need repairs! :P
Do you have a video of how the gears go back? That would be very helpful as trying to get the bugger back in and tray installed correctly. I have left the Helix screw so the Laser is down, but what position does the top Gear go 🙂
I have a bunch of videos on SCD tray mech, I'd check my playlist for it and see if it doesnt answer your Qs :)
This video is generally very good at explaining how to pull the pro model apart but since the KZread algorithm is putting it at the top of English searches I thought I'd clarify a point. There's actually an additional, hidden plastic clip on the front panel that is not mentioned in this video (if you look carefully in the video you can see that it has been previously snapped off), this clip is in the upper right hand corner of the case (if you're viewing it from the front) above the power and hard disk access lamps. It's oriented vertically unlike the other ones; it must be a commonly missed thing as I found mine rattling around inside the case. Good luck to anyone reading this!
If those are two Mika strips on either side of the positive bus mounting point it is a good insulator. They cheaped out on design for ease of manufacturing.
what is model and the value of this potentiometer?
How the f did you open this?
watch the other videos, I think I explain it.
Thank you for this information! With it, I was able to disassemble my iron and traced the problem to a poor connection at one of the crimps. Using long-nosed pliers, I tightened the offending connection and reassembled it without shortening the cable at all!
Currently working in mine. The speaker only produce a low pitch humming sound that I can control with volume. I found I have a short somewhere or more than one. Found one with the flir camera but can't find the others. As you say, it is a great speaker, I don't want to through it away.
Really late here to the party, but yeah, I would love to see you put together a Sega CDX repair guide.
Thanks for the feedback! It helps to keep it on my radar, cause I really want to add it to my site. Too many projects right now, but it will be done sometime!
@@SegasonicfanDesigns I hope you get it together sometime. I have a CDX myself that just powers on, spins the CD a couple of times lazily, but no sound or video. Would love to get it back up and running. 👍
Hi, the VTA on my Technics 1200mk2 is frozen and a friend has opened it up to try to fix it. Wondering what grease to use? Ideally would be something I could pick up tomorrow at Home Depot or an automotive store. Thanks in advance!
I have the same model, though right now the hand wheel is stuck even if I’ve moved the bobbin threader already 😭 I already opened the area around the needle but no issue.. the problem seems to be inside the hand wheel 😭
It's interesting you observe the apparent quality of the Evoluent 2's click actuators or whatever they're called. Those are the very parts that have broken on me through half a dozen - count 'em! - Evoluent 4 Vertical mice. (Both right and left models). Thanks for the video, because now I'm going to go find replacements for the buttons and repair my pile of broken Evoluent mice!
Hey bro - did you manage to source for the broken click actuators or whatever they are called? having exactly same issue with my Evoluent
Hey, my bluetooth mouse's(the 4th gen) scroll wheel is all jumpy/glitchy(not consistent) i was looking at a replacement part for the same. The VMR4 scroll poteniometer same as the one in this video(VMR2) ?