Question about FDS belt?

[Frank_fjs]

Hang on, a bit of confusion here.

The thing I pictured above is the thing that I tend to adjust, so you are saying don't adjust this but instead adjust the magnetic head?

If so, is this the thing you mean?



So adjust the position of the head via the spring loaded screw?

[80sFREAK]

Exactly. Even without caliper.

[Frank_fjs]

Got it, thanks.

[JohnnyBlaze]

Not sure about calibration and all that, but I DO know about those damn belts. YES, I STILL have flashbacks to the nightmares working on the Turbo Twin.

What I did take off as much as I could and for whatever was stuck, I wiped the area down with a Q-Tip dampened with rubbing alcohol, and the used a jeweler's flat head screwdriver(if you have a screwdriver set, it's usually the flat head you use for smaller electronics) and hold the edge down and slowly turn the gear. It should take a lot of the gunk off. Then, clean the area with alcohol dampened Q-tips. Rinse and repeat. When it's done(there's going to probably be some staining from the black rubber, but this is normal. As long as there is NOTHING that the new belt can stick to), just let it air dry for about a half hour to an hour, then install the belt.

[ericj]

I would add that you should only adjust the head after you're damn sure that the FDS is correctly put back together. And only use very small increments, then test/re-test. If you don't do both of these, you'll probably never get it working again. Ever. 

[80sFREAK]

I would add that you should only adjust the head after you're damn sure that the FDS is correctly put back together. And only use very small increments, then test/re-test. If you don't do both of these, you'll probably never get it working again. Ever. 

Let's call'em "steps"

[Plep]

So, feeling productive while waiting for my belts to arrive in the mail last night I decided to try giving the cleaning process a go.  I took three pictures of the progress: First picture is not cleaned, second is more clean, and the third picture is pretty much the best I can do with it.  I was surprised how easy it was to clean though, the rubbing alcohol and Q-Tips worked wonders.  There's still plenty of black smudges in some places but I'm sure its as best as it can be.  It's as smooth to the touch as I can get.  I'll probably try cleaning it again when I replace the belt to make sure I got everything but here's the pics





So far I can say thanks for the various help.  I got a lot more responses on this thread I ever hoped to get so once again thanks 

[Frank_fjs]

Looks good, easy part is over.

You should be fine though, plenty of people here to help out if needed. Keep us posted on your progress.

[JohnnyBlaze]

That's about what mine looked after I cleaned the head on the old Turbo Twin(the last pic), although the belt was more melted than that. But, still, alcohol and Q-Tips are anyone's best friend.

[Plep]

Alright, so update:

I got my belts in the mail.  I put a belt on very easily and I test a game..doesn't read it at all.  No more buzzing sound on my Disk System though, so that's good.  I test with a few more games and stil no loading at all but no buzzing.  I take it back apart and mess around and got it to spin.  I'm able to put the game in now and have it spin the belt and gears and stuff only to get the 21 and 22 errors.  After looking it up on this site I found what the problems are but I'm at a loss at what I can do to fix it.  So far I've tried calibrating..but I'm not sure if what I'm doing is right or if the calibration itself isn't the problem.  I'm aware the other method has to do with turning this screw very carefully correct?

As of now can someone recommend me what my course of action(s) is for this? It says on this site error 22 could possibly be caused by the belt slipping off the motor pulley, on my disk system it (the belt) I believe is like that but it spins completely fine.  I heard on this post about changing the motor speed, I have looked into this but as of now I haven't tested it.  I will be trying that as well.  Am I going to have to adjust this caliper head thing, and if I do any tips? I feel like I jumbled my questions up so to sum up my questions here I go:

Getting 21/22 errors, tips for fixing?

How to adjust the spindle for calibration?

Do I need to adjust some screw head?

Any specific directions for adjusting motor speed? I know where it is and what to do with it I just need directions on how to do it right

Belt doesn't seem like its down on gear all the way? When the belt moves no matter what it always gets pushed back up, any reason why?

Also I have 6 games, and I have been testing all 6 so it isn't just one game that isn't working.  Thanks again

[Frank_fjs]

I find most of it is just trial and error, making small adjustments and testing each time until you finally reach a point where it is reading disks. You'll know when you're getting close by watching the drive and listening to the sounds that it makes. It should move smoothly and read the game in one pass.

Re the drive speed, in my experience it usually has to be set to a slower speed, which you do by turning the screw to the right. Just make very small adjustments and test.

For now I would try to get things working via the head position screw, and the motor speed if necessary.

[Plep]

I find most of it is just trial and error, making small adjustments and testing each time until you finally reach a point where it is reading disks. You'll know when you're getting close by watching the drive and listening to the sounds that it makes. It should move smoothly and read the game in one pass.

Re the drive speed, in my experience it usually has to be set to a slower speed, which you do by turning the screw to the right. Just make very small adjustments and test.

For now I would try to get things working via the head position screw, and the motor speed if necessary.

All right, I am going to acquire a flathead for the motor and do what I've been doing before addon as I get home.  As always, I'll post my results with it.  Since my schedule is free I have hours to try and get something out of this so I'll be sure to post back soon

[fredJ]

belt slipping: you didn't clean the small wheel entirely. If it slips upwards: clean the upper part of it. Get all the black stuff out.

You say you have tried to calibrate but you don't seem to have done anything?
Spindle hub adjustment is explained at http://www.famicomdisksystem.com/tutorials/fds-repair-mod/belt-replacement-adjustment/ It's not 100% accurate but good enough.

Motor speed is not what you should focus on.

The caliper head screw doesn't always need adjusting. PM me for details.

[80sFREAK]

spindle calibration

oh lol, please not this shit again.

Ask yourself have you ever seen anywhere adjustment screw non-loaded with spring?

[Plep]

Alright, hi again all.  After tinkering on and off for a couple days I've got my progress to share.  When I first started the thread I was receiving errors 21 and 22 on my disk system.  My games would try to be read, then it will stop for a second, and continue going again until it got the 21 or 22 errors.  With the 23/27/28 errors my game reaches a black screen before it stops ad starts again.  Should it be stopping or should it go through reading the disk without any stops?

Now with what I've done I've managed to keep it a consistent 27 or 28 errors and sometimes error 23 as well.  Checking the forum I found what each error stood for, so I kind of have an idea on what I'm supposed to do.  The specific errors I'm getting is err. 27, err. 28, very rarely err. 23, and sometimes err. 07 even if I'm on side A of the disk.  The games themselves will end up getting to a black screen for a good 5 seconds before the errors come up so I know I'm getting somewhere.  Also..motor speed, how fast or how slow should it be? Tips on that? And one last thing..is there anything I can clean other than the rectangular metal piece on the drive, could anything else dirty be causing problems if it isn't my disk drive? Thanks again.

Edit: I also wanted to say thanks for the people posting advice..some of my questions on this post here have been answered to an extent and I didn't realize it so excuse me if some questions I asked were already answered by a few people, the clarifications will help though