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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: amiga1260 on July 30, 2004, 09:07:41 PM

Title: Strange problem with an A2000 diskdrive
Post by: amiga1260 on July 30, 2004, 09:07:41 PM
I bought a secondhand diskdrive from a dealer. I can return the drive, but I want to know if someone has same problems.

I put the drive in the A2000. The rev is 6.2. I turn it on the diskdrive led goes on and after showing the hand with the disk, it stops. If I put a disk in it, then the disk doesn't read it. When I put the disk before showing the hand, then she will boot from disk.

It doesn't allow possible to play multi-disk games.

The drive is a Chinon FB-357 rev.c.

I use Kickstart 1.3.

This problem doesn't appear with my old diskdrive.
Title: Re: Strange problem with an A2000 diskdrive
Post by: Ilwrath on July 30, 2004, 09:33:52 PM
On the disk drive itself, check the small sensor switch for disk change.  It may have gummed up/stuck.  This would cause the drive to not sense when a disk is inserted/removed, causing the exact problems you describe.  

If that switch looks ok, I'd check all the pins on the back of the disk drive and make sure none are bent or not connecting.  (As well as examine the cable.)  

It really sounds to me like the computer just isn't getting the signal for disk change.
Title: Re: Strange problem with an A2000 diskdrive
Post by: BoingBoss on July 30, 2004, 10:01:04 PM
Hi amiga1260,

Quote
The drive is a Chinon FB-357 rev.c.


The Chinon FB-357 is a high-density disk drive.  If it is the one made especially for the Amiga 2000 Series computers then you have a very rare disk drive indeed.  The Amiga 2000 Chinon FB-357 HD disk drive has a present day value of over $250.00 and is the rarest of the HD Amiga disk drives.  I sold one on eBay for $95.00 plus S/H and this is only because I did not have a reserve set on it.  I have seen these drives sell for over $250.00 on eBay.  You got lucky, dude.   :-D

Quote
I use Kickstart 1.3.


The Chinon FB-357 disk drive usually will only work with Kickstart 2.04 or above.  Kickstart 1.3 does not support high-density disk drives.  If you want to use Kickstart 1.3 then you will have to get yourself a Chinon FB-354 disk drive or an older Teac disk drive.  I sell new Teac drives for the Amiga for only $250.00.  These are very high quality disk drives and is what I use in my own Amiga and Atari ST computers.  My Amiga 500 Tower has two (2) Teac disk drives.   :-D
Title: Re: Strange problem with an A2000 diskdrive
Post by: TjLaZer on July 30, 2004, 10:15:59 PM
The drive is not worth $250.  As you saw, it is probably worth about $100; as you sold one.  Just because a idiot or two bid up one for $250 doesn't mean that's the value of it.  Some 4000 HD drives have sold a pretty penny on Fleabay recently, but you can also get a complete 4000 setup for $300 to $400.  Don't know why the drive itself would fetch ~$200.
Title: Re: Strange problem with an A2000 diskdrive
Post by: amiga1260 on July 31, 2004, 12:18:57 AM
I try the diskdrive in an A1200 and it wasn't possible to read hd disks. And gives the same problem. I'm going to sent it back to my dealer.
Title: Re: Strange problem with an A2000 diskdrive
Post by: BoingBoss on July 31, 2004, 01:41:27 AM
Hi amiga1260,

Quote
I try the diskdrive in an A1200 and it wasn't possible to read hd disks. And gives the same problem. I'm going to sent it back to my dealer.


Your Amiga 1200 has Kickstart 3.0 or 3.1.  Some Amiga 2000 Chinon FB-357 disk drives only worked with Kickstart 2.04.  They did not work with Kickstart 3.0 or above.  The drive that I sold for $95.00 on eBay was like this.  It worked great in my Amiga 2000HD, but would not work in my Amiga 2500.  There was nothing wrong with the drive, just Commodore's software.  I will trade you a new Amiga 2000 disk drive (still in box) for your Chinon FB-357 drive.  Pmail me.   :-D
Title: Re: Strange problem with an A2000 diskdrive
Post by: Robbie on July 31, 2004, 02:02:25 AM
i love you boing boss. U da man!!!  :love:
Title: Re: Strange problem with an A2000 diskdrive
Post by: Piru on July 31, 2004, 02:08:17 AM
Anyone paying $100 (not to mention $250) for a floppy drive needs to have his/her head examined.
Title: Re: Strange problem with an A2000 diskdrive
Post by: Cyberus on August 02, 2004, 03:48:21 PM
could you not get a Catweasel and a couple of nice Sony drives for that price?
Title: Re: Strange problem with an A2000 diskdrive
Post by: spirantho on August 02, 2004, 04:43:52 PM
Quote

Cyberus wrote:
could you not get a Catweasel and a couple of nice Sony drives for that price?


Not so good for multi-disk games, though...! Needs to be a native drive.

Incidentally, what are the normal HD drives in A4000/030s? Surely enough of them were sold (like mine) that they're not that rare....

@Amiga1260: Where in the world are you? I have a spare A2000 floppy lying around (replaced by a Catweasel'd HD drive!) but I'm in the UK.
Title: Re: Strange problem with an A2000 diskdrive
Post by: BoingBoss on August 02, 2004, 05:15:29 PM
Hi spirantho,

Quote
Incidentally, what are the normal HD drives in A4000/030s? Surely enough of them were sold (like mine) that they're not that rare....


The High-Density disk drives for the Amiga 4000 are not rare, but the ones for the Amiga 2000 are very rare.  There is a difference between the two drives.
Title: Re: Strange problem with an A2000 diskdrive
Post by: Kronos on August 02, 2004, 05:18:03 PM
Used you say ?

Don't know that exact modell, but most Chinon did have small jumpers to select the drive number.

Check if it is set to "DS0".
Title: Re: Strange problem with an A2000 diskdrive
Post by: Cyberus on August 02, 2004, 05:47:17 PM
Quote

spirantho wrote:
Quote

Cyberus wrote:
could you not get a Catweasel and a couple of nice Sony drives for that price?


Not so good for multi-disk games, though...! Needs to be a native drive.


But games never came on HD disks did they? So what's the problem?
Title: Re: Strange problem with an A2000 diskdrive
Post by: BoingBoss on August 02, 2004, 06:09:23 PM
Hi Cyberus,

Quote
But games never came on HD disks did they? So what's the problem?


You are right.  I personally only use DS/DD disks and have hundreds of new boxed DS/DD disks sitting up in my closet.  I am still buying them too whenever I see them on eBay or in store close-outs.  Since I plan to keep and use my Classic Amiga and Atari ST computers for the next 30+ years I am stocking up on disks and spare parts (SCSI hard disks, SCSI CD Rom drives, Amiga Chinon and Teac disk drives, chips, keyboards, mice, etc).  This way I will always be able to repair my own vintage computers.   :-D
Title: Re: Strange problem with an A2000 diskdrive
Post by: wolli on March 22, 2006, 07:50:50 PM
I got a FB-357 rev.B too and want to connect it to my A500+ KS2.04

But the drive does not to work because it seems the diskchange signal works not correct.
The drive thinks that a disk is inserted even if none is in it.
Please can anyone look for the correct jumper settings i have to set at this drive?
I know that i have to solder at the drive, but that's no problem.
A picture of my drive is stored at:
http://wolliboy.wo.funpic.de/357.jpg

Please look at it and tell me what's wrong jumpered.

BTW: Is it possible to use this drive as HD-Floppy on my A500+ ?

Regards
Wolli
Title: Re: Strange problem with an A2000 diskdrive
Post by: leofoe on March 23, 2006, 11:55:38 AM
Maybe this site (http://www.rabayjr.com/amiga_floppy_drives.htm) is of some help.
Title: Re: Strange problem with an A2000 diskdrive
Post by: motorollin on March 23, 2006, 01:42:39 PM
BoingBoss = Doomy?  :-?

:lol:

--
moto
Title: Re: Strange problem with an A2000 diskdrive
Post by: orange on March 23, 2006, 02:40:01 PM
@wolli
have you checked the switch that detects the disk is inserted?
its in the corner.
BTW, its very easy to use PC HD floppys with any Amiga just modify cable a bit..

@motorollin obviously..
Title: Re: Strange problem with an A2000 diskdrive
Post by: Oliver on March 23, 2006, 02:47:57 PM
Quote

orange wrote:

BTW, its very easy to use PC HD floppys with any Amiga just modify cable a bit..



Is this reliable?  Does it work well?  I've been meaning to look into/try this, but haven't gotten around to it.  Will the PC drive be recognised as an Amiga drive, and will it be able to read standard Amiga disks properly?  Any problems with games?

Cheers
Title: Re: Strange problem with an A2000 diskdrive
Post by: CLS2086 on March 23, 2006, 04:02:54 PM
I try the diskdrive in an A1200 and it wasn't possible to read hd disks -> this depend of the revision of the mobo (for eg. : 1.A can't handle correctly HD drives with HD floppy...)

Internal HD Floppy for A600/A1200/A4000 are Chinon FZ 357, it can read/write DD floppy but some original games with some drive's seek time "protection" fail...

For A500/A500+, it exists some metallic plate spacers to fit "FZ-35x" style drive in place "FB-35x". Not so common, but you can find them in the last A500/A500+ repaired byt Commodore Services.
I think that Micronik made some too.

Modified PC drives are much more sensible to the defects than the old TEAC/Chinon/Citizen drives.
I use a Panasonic JU-257 has main drive to read/write new disk, but i use a Citizen "40"( external) to read my old disks that can't be on the panasonic ;)
Title: Re: Strange problem with an A2000 diskdrive
Post by: Amiga4k on March 24, 2006, 01:02:05 AM
My apologies to any authors (of the following). This is a capture I made Oct 2005. Have made an edit for brevity.
Question:  Scavenged a FZ-357 floppy drive to replace my low density internal drive. (My A1200 is a Commodore).
Anyway, I heard two conficting reports about the Chinon FZ-357. Is it ONLY the FZ-357A that will work with amigas, or does the FZ-357 (without the A) work with some amiga models? One amiga forum indicated that the FZ-357 works with the A1200. Others say that it's only a PC drive. But, furthermore, AT 1200 models apparently shipped with a Panasonic drive installed which had to be modded to work with the amiga FD controller.
Whether or not the FZ-357 can work with my A1200, I'm sure that one of you can tell me how to get this chinon to work! Will I need to modify it? (it has the DS0,1,2, and 3 jumper settings external yay!) The other jumper settings are shown embossed on the drive cover - some other settings are MM, MD, RDY, DC, TT-L/C-MOS. Currently these settings are MM, DC, and the jumper is in for the TT-L/C-MOS setting.

Answers:  You can use it as a low density drive by setting the jumpers. Only the 357A works as high density.

To get your FZ-357 running properly as the internal drive, the following jumpers should be set
DS0, MM, RDY, TTL
DS0 jumper horizontal, MM, RDY & TTL all vertical

The drive might vary in dimension to that of the internal A1200 model, you will need to attach the side mounting bracket and maybe place stiff foam or another material across the back of the drive to secure it against disk insertion with only one mounting screw holding it in the case.

These drives work great as 880k drives! But some do not, just try it and see. (one quick way I have seen is to check the face plate, if it is rounder than boxier it will work)

Question:  I have a Chinon FZ-357 drive, but has problems with disk changes. It was made in Japan.
Answers:   To get your drive to Disk Change open it up and expose the PCB. Then solder jumper J2 to close. It will work perfectly now.


As for A2000 drives, I have two A2000 drives on an original A2000 mounting bracket (with the proper stand-offs). I would gladly part with these Chinon FB-354's for $50 plus shipping. (Need to unpack my workshop, but I'll get them out).