Can't wait for part 3 of this! I actually enjoy seeing difficult repair videos as much as simple ones. It gives a better perspective on how hard repairing older systems can be!! Please keep giving us more
Hi, I found 2 issues in your way of calibrating the spindle : 1- you mounted the spindle upside down. You have to be able to push on the little metal part from the top. 2- the best way to calibrate the orientation is to rotate the gear under the player until you ear a "click" made by the plate around the spindle falling into place. then rotate the gear a bit backward until it blocks (don't force). Then the small screw on the spindle has to face the reading head (so the opposite direction of the way you used to calibrate). You may need to remove the black plastic carriage.
I'm working on my first Twin Famicom ever so bear that in mind. I think I know where his issue comes from: He says "the spindle goes in the way where you can't depress it from the top". I don't think it's right actually. There is nothing underneath that springing pole to make it go up, however, disks have a small indentation that would indicate that something needs to go in there. They have a single hole in a circular thing, therefore, that spring is most probably used to keep pressure while it spins until the hole appears underneath and the spring pushes the pole to the hole. If I understand this correctly, his disk isn't spinning unless the hole happen to match the pole when you insert it, which is like 1 in 60 chances (based on the size of the circle and hole)
Will 2022 be the year of the Sharp Twin Famicom part 3? I hope so. The Twin Famicom is an interesting piece of history, and finding all faults to make sure people can buy one without worry would be great
I've fixed up a ton of these over the years. You have a very weird issue, that's for sure! I usually get 4-6 of them in at a time and it's helpful to be able to swap parts between them for trouble shooting. I noticed that your power supply board is a later revision with the extra chips on it. I've read that they are for extra security to prevent copies, maybe a bad chip on them could cause issues also? I might have some extra junk power supply boards if you need them.
I didn't know that, I'll have to look into that. A junk board would always be handy, can you send me an email to retrorepairsca@gmail.com, I'm curious what the difference is
I'm interested in buying an FDS that has a new belt in it. How long are these things expected to last with low to moderate use before needing a belt replacement?
Any fds that hasnt been repaired will need a belt. The old ones always dry and crack. Newer ones will probably last alot longer, but hard to say. I bet you could get another 20 years out if it as long as the circuitry holds up
I know its been a year, but I really have to ask. Are you putting the disk in the right way? I thought I saw the back of the disk, I may be wrong. Still watching a year later since I never even heard of this system.
Me too. I actually just recently found a website that sells parts for these consoles including those cables that loop from the power supply board to the mainboard and drive, so that's much more convenient than repairing one.
the hum is the power supply. i have a nes tat does it because of Universual one. still don't know why you didn't get one made for famicom. they cant be that much
I’ve noticed on my twin famicom I’m getting two large green lines in my two different cart games. Not sure if it is a cable issue or something else. Any ideas or has anyone seen that issue before?
Hello! I had the same issue. The Loading splash screen doesn't start anymore. I was able to resolve this issue. I watched your video, it's a pity that you did not succeed. I can say that the idea to repair the power was correct, but you need to check everything and make sure that after the repair there is no more excessive heating of the microcircuits on the main board. Next, run a memory test, then launch the game through the cartridge slot. And again you try to start the disk. Yes, it sounds strange, but it's better than just putting the console on the shelf for a few days. I did not find another way to make the memory chips work again) this is too ancient a device) I tell everything in detail in my video, in my profile, if it's still relevant, you can watch it, the video has subtitles. The video is about repairing the cartridge, but at the time of shooting I ran into a problem that you covered and I also had to solve it) Good luck 👍
I have a gameboy game that I tried to fix (failed miserably). I don't know if it's beyond repair or not, but I'd be happy to send it to you if you'd like to take a whack at it. Let me know!
It’s also possible the disk is bad after years in storage; floppy disks (of any sort) are not meant as long-term storage media - they’ll self-erase due to the magnetic domains affecting one another over time. 🥺
The floppy drive needs a factory reset alignment when you replace the belt. Those UA-cam videos don't do this. There is a website that is dedicated to the FDS and it has step by step how to factory align the head, pulleys etc. My FDS would not work at all when I tried all UA-cam videos but soon as I did factory alignment, it reads all games and been going strong for 3 years. I printed out the instructions, I'll find my FDS box and check for the web address and get back to you.
Thanks, but the issue isn't the drive here, as a know working drive also gives the same problem. I've calibrated the head multiple times off camera, makes no difference here. I would still be interested to see the actual service centre instructions though
No worries, always good to get any tips i might not have thought of. The method i used in this video is a bit different from the normal technique you usually see, and it calibrates it based on pulley wheel position, rather than having to take the top off the drive and adjusting it that way. I find it much easier
Problem could be the disks. I'd wait about an hour to see if the Games will get past the "Now loading" screen. If it gets to either the Copyright message, or the Title Screen of the game, then you've done it correctly.
Thanks for your video!! Maybe you or someone can help me with an issue. 😮💨 Today I was trying to play with disk mode and I don't have the classic image of Mario and Luigi jumping anymore, I get a gray screen. Some time ago I closed the pins of the socket because it was very loose and I think that the pins that are facing each other were short-circuiting when there is no cassette placed in the socket. I think this may have burned a chip on the floppy side of the motherboard. If that were the case, which part of the PCB (which chips) should I check? Is there some kind of fuse or logic gate that could blow due to what you mention? Thank you very much. I hope this will help to the entire community to solve this problem, cuz I was searching a lot on the internet and couldn't find anyone mentioning that this could be the cause of this grey screen issue on disk mode.
You really need to get a proper camera and use a tripod more, I felt sick with all the bobbing around,, even when on a tripod, everything is zoomed in way too much. It's OK to fast forward through some of the process. I'm really not a hater and I hope you take this as constructive comments, honestly I struggled to watch the few minutes I did watch.
Could use some help from anyone. Have snes issue. Runs fine no problem except when the game plays the main character is always shadowed out shown as silhouette.
Sprite not being rendered. I believe they are stored in ppu2 (could be wrong on that one) It's not uncommon at all for the cpu, ppu1 and 2 and the vram chips to fail on a snes. Inspect all traces between the chips, but failing that it could need a replacement chip. If you dont have a hot air station, that is not a diy job.
Thank you for an interesting video! One thing that would make the videos more enjoyable for me would be if you tried to refrain from sounding like a teacher making a video tutorial. Just show us what you are doing and explain why you are doing it in a specific way instead of telling the viewer what to do. No biggie, just some constructive criticism. Again, thanks for your nice videos!
Can't wait for part 3 of this! I actually enjoy seeing difficult repair videos as much as simple ones. It gives a better perspective on how hard repairing older systems can be!! Please keep giving us more
Lol still waiting??
Damn, six months and no update. Must be a difficult problem to find! Can't wait to see what was ACTUALLY wrong!
Hi, when do you upload Part 3 ?
This is the second video of his I've seen that has gone a year without a part 3.
@@yadaroni Sometimes there's no easy answer. The problem with this unit I suspect is rare parts.
Hi, I found 2 issues in your way of calibrating the spindle :
1- you mounted the spindle upside down. You have to be able to push on the little metal part from the top.
2- the best way to calibrate the orientation is to rotate the gear under the player until you ear a "click" made by the plate around the spindle falling into place. then rotate the gear a bit backward until it blocks (don't force). Then the small screw on the spindle has to face the reading head (so the opposite direction of the way you used to calibrate). You may need to remove the black plastic carriage.
So you have a video showing of this wat to recalibrate?
@@manuelzaratebrizuela2799 You're right, I should make one
Thank you RetroRepairs, much anticipated and appreciated Sharp Twin Famicom Disk System repair video.
what does it look like when the copy protection on the diskette is the culprit?
For a very fast way to evaporate alcohol off your devices, use canned air.
Would the switch @2:42 be the reason it would not boot?
I'm working on my first Twin Famicom ever so bear that in mind. I think I know where his issue comes from: He says "the spindle goes in the way where you can't depress it from the top". I don't think it's right actually. There is nothing underneath that springing pole to make it go up, however, disks have a small indentation that would indicate that something needs to go in there. They have a single hole in a circular thing, therefore, that spring is most probably used to keep pressure while it spins until the hole appears underneath and the spring pushes the pole to the hole. If I understand this correctly, his disk isn't spinning unless the hole happen to match the pole when you insert it, which is like 1 in 60 chances (based on the size of the circle and hole)
Will 2022 be the year of the Sharp Twin Famicom part 3? I hope so. The Twin Famicom is an interesting piece of history, and finding all faults to make sure people can buy one without worry would be great
I hope so. I haven't made any progress with it so it's getting time to pull it out and figure out the issue
@@RetroRepairs no, 2023 will be!
RIP part 3 guess we won’t ever get it
What if the felt pad (15:40) is gone? Are there any suitable replacements?
Thank you for another great video. Can't wait to see the final outcome for this system.
Me too! Really hoping i can get this going
You are the reason I stated my own business in my home town thank you
That's great to hear, best of luck with your business.
"You keep asking for her" Yup! Guilty as charged =)
I never asked verbally... I asked quietly in my head.
Still guilty as charged. :)
I've fixed up a ton of these over the years. You have a very weird issue, that's for sure! I usually get 4-6 of them in at a time and it's helpful to be able to swap parts between them for trouble shooting. I noticed that your power supply board is a later revision with the extra chips on it. I've read that they are for extra security to prevent copies, maybe a bad chip on them could cause issues also? I might have some extra junk power supply boards if you need them.
I didn't know that, I'll have to look into that. A junk board would always be handy, can you send me an email to retrorepairsca@gmail.com, I'm curious what the difference is
Hi, I have never got one that can get the disc drive to work. Have you got a spare working drive to sell?
No, i don't have any for sale
Nice job Saving that sharp nintendo twin famicom
I'm interested in buying an FDS that has a new belt in it. How long are these things expected to last with low to moderate use before needing a belt replacement?
Any fds that hasnt been repaired will need a belt. The old ones always dry and crack. Newer ones will probably last alot longer, but hard to say. I bet you could get another 20 years out if it as long as the circuitry holds up
nice, what the name of the belt? Pretty hard to find that one, I only see people selling the Mabilond belt.
i want to see part 3
I know its been a year, but I really have to ask. Are you putting the disk in the right way? I thought I saw the back of the disk, I may be wrong. Still watching a year later since I never even heard of this system.
was there a part 3?
Cant wait to see Part 3 in 2020 !
Ha! I know this one took forever, I'm hoping to figure this out by March, but we'll see of course
@@RetroRepairs Thats great to hear ^-^ Cant wait to see it
I've completely ruled out the drive as defective, but the downside is that leaves a rare mainboard, chips or cables as the problem.
@@RetroRepairs I just really wish that it could be something as easy as a bad Cable or such
Me too. I actually just recently found a website that sells parts for these consoles including those cables that loop from the power supply board to the mainboard and drive, so that's much more convenient than repairing one.
On the drive slide were there "C" clips that could have been slipped out to enable the slide to be removed?
Can I have a link to part 1? Haven't watched it yet :)
ua-cam.com/video/0CAjA0l-ydE/v-deo.html
Been waiting for this for too long :)
Finally
the hum is the power supply. i have a nes tat does it because of Universual one. still don't know why you didn't get one made for famicom. they cant be that much
Hum is actually the player 2 microphone. Very common with famicom systems
Beeing waiting for the second part a loong time ;)
Greetings from Germany!
I’ve noticed on my twin famicom I’m getting two large green lines in my two different cart games. Not sure if it is a cable issue or something else. Any ideas or has anyone seen that issue before?
so, you never fixed this one? do you even have it now?
These videos are all over the place. Nevermind
Hello! I had the same issue. The Loading splash screen doesn't start anymore. I was able to resolve this issue. I watched your video, it's a pity that you did not succeed. I can say that the idea to repair the power was correct, but you need to check everything and make sure that after the repair there is no more excessive heating of the microcircuits on the main board. Next, run a memory test, then launch the game through the cartridge slot. And again you try to start the disk. Yes, it sounds strange, but it's better than just putting the console on the shelf for a few days. I did not find another way to make the memory chips work again) this is too ancient a device)
I tell everything in detail in my video, in my profile, if it's still relevant, you can watch it, the video has subtitles. The video is about repairing the cartridge, but at the time of shooting I ran into a problem that you covered and I also had to solve it) Good luck 👍
Good luck I decide to watch the first part 2 days ago!
OH BOI I have watied for this SO LONG NOW
Been waiting for this. ;) 👍🏻
Your videos are addicting!
I have a gameboy game that I tried to fix (failed miserably). I don't know if it's beyond repair or not, but I'd be happy to send it to you if you'd like to take a whack at it. Let me know!
I'd be interested in checking it out. Send me an email to retrorepairsca@gmail.com
I sent you an email :)@@RetroRepairs
Damn still no part 3 after 5 years
It’s also possible the disk is bad after years in storage; floppy disks (of any sort) are not meant as long-term storage media - they’ll self-erase due to the magnetic domains affecting one another over time. 🥺
Just watching the other part the other day-wondering where part two was-ah. One of the rom chips is prolly bad on the board..
I definitely think the ram. I finally found a reasonably priced seller, so plan on tackling this again soon
@@RetroRepairs cool, hope you get it fixed. It's like it's not communicating to the NES's ram that there is a drive there.
I'm having the same issue with 2 different Disk Systems. So I'd guess this is just not going to work
The floppy drive needs a factory reset alignment when you replace the belt. Those UA-cam videos don't do this. There is a website that is dedicated to the FDS and it has step by step how to factory align the head, pulleys etc. My FDS would not work at all when I tried all UA-cam videos but soon as I did factory alignment, it reads all games and been going strong for 3 years.
I printed out the instructions, I'll find my FDS box and check for the web address and get back to you.
Thanks, but the issue isn't the drive here, as a know working drive also gives the same problem. I've calibrated the head multiple times off camera, makes no difference here. I would still be interested to see the actual service centre instructions though
www.famicomdisksystem.com/tutorials/fds-repair-mod/belt-replacement-adjustment/
That website is what I use, it may have some solutions.
I've been there before, unfortunately the issue with this system is circuitry, not the drive
I'm sorry. It's always a shame when the problems are deeper, I'm sorry for wasting your time.
No worries, always good to get any tips i might not have thought of. The method i used in this video is a bit different from the normal technique you usually see, and it calibrates it based on pulley wheel position, rather than having to take the top off the drive and adjusting it that way. I find it much easier
Are we sure that the disk is not blank?
Yes, I've since tested them on a known working one. Either way, it would return an error
Any update on the status of this?
Still waiting for nes top loader part 2 video
That's next on the to do list
Problem could be the disks. I'd wait about an hour to see if the Games will get past the "Now loading" screen. If it gets to either the Copyright message, or the Title Screen of the game, then you've done it correctly.
Dang, talk about plug and play with those two drives!
Love your videos as always
Adam, do you sell your repairrd stuff on ebay? If so, will you let us know where we can find it? :)
When you boot up the sharp twin Famicom, the disk menu says Famicom but on the external one it says Nintendo .
Part3?
"if you were to touch something inappropriately"
naughty, naughty!
it might take a long time, because i would be hard to find parts for Twin Famicom :(
Thanks for your video!! Maybe you or someone can help me with an issue. 😮💨
Today I was trying to play with disk mode and I don't have the classic image of Mario and Luigi jumping anymore, I get a gray screen.
Some time ago I closed the pins of the socket because it was very loose and I think that the pins that are facing each other were short-circuiting when there is no cassette placed in the socket.
I think this may have burned a chip on the floppy side of the motherboard. If that were the case, which part of the PCB (which chips) should I check? Is there some kind of fuse or logic gate that could blow due to what you mention? Thank you very much.
I hope this will help to the entire community to solve this problem, cuz I was searching a lot on the internet and couldn't find anyone mentioning that this could be the cause of this grey screen issue on disk mode.
You really need to get a proper camera and use a tripod more, I felt sick with all the bobbing around,, even when on a tripod, everything is zoomed in way too much. It's OK to fast forward through some of the process.
I'm really not a hater and I hope you take this as constructive comments, honestly I struggled to watch the few minutes I did watch.
how do u fix a nes that wont power on
No sign of life at all? Id check the 7805, bridge rectifier and make sure there's no bad solder joints along the power circuit.
Too bad you don't have an oscilloscope to see if the head is reading data.
Yep, would have saved me some time, but turns out the head is fine, as this drive works in a different unit
Yay part 2
PART 3 please
Kona is supervising
Making sure i don't slack off
Make sure you are using a good quality power supply.
It's a psOne supply which provides the correct voltage and amperage, with a proper sized barrel soldered on. It "should" be fine
@@RetroRepairs Agreed. That should be fine.
Finally! Mama-mia!
Could use some help from anyone. Have snes issue. Runs fine no problem except when the game plays the main character is always shadowed out shown as silhouette.
Sprite not being rendered. I believe they are stored in ppu2 (could be wrong on that one)
It's not uncommon at all for the cpu, ppu1 and 2 and the vram chips to fail on a snes. Inspect all traces between the chips, but failing that it could need a replacement chip. If you dont have a hot air station, that is not a diy job.
@@RetroRepairs thanks for the info, guess I'll pass on ig since it's out if skill range at the moment.
Thank you for an interesting video! One thing that would make the videos more enjoyable for me would be if you tried to refrain from sounding like a teacher making a video tutorial. Just show us what you are doing and explain why you are doing it in a specific way instead of telling the viewer what to do. No biggie, just some constructive criticism. Again, thanks for your nice videos!
Who won the famicom
I posted this on my twitter account, @repairs_retro
for sure if your disk is not in the drive it wont work lol
FINALLY!!! :)
Cool
👍👍👍
no part 3? ..sad face
Legal!!!
ua-cam.com/video/QVAy6acxL9I/v-deo.htmlsi=UZbtPN40y6aa924S aqui en español
How bull crap mam! I just watched a hr video and you didn’t fixed it 😵
7th
Part 3???