EXTERNAL FLOPPY DRIVE NOT WORKING BUT???

[amigaguy00]

Hi to all hope someone can help, i am having trouble with my external Floppy drive it's detected in the bios but not in WB insert a disk and nothing. But when i disconnect my internal Floppy  the external drive works.have tried turning the cable round etc.
specs of my Amiga 1200
Apollo 1240 32meg accelerator
cd drive
dvd drive
x2 Harddrive 1.2gig + 2gig
internal floppy

any help much apreciated  

[Matt_H]

Is this a floppy drive or a hard drive?

[amigaguy00]

Floppy drive thanks.

[hamtronix]

Is it set to DF1: ?

[amigaguy00]

Hi how do i set to df1:? thanks.

[hamtronix]

Should be a witch on the back of the drive. if not you may have to open the case and there could be a jumper you need to short... You might want to post the make of the external floppy so other smarter peeps can help you here

[amigaguy00]

ok the drive is a Teac fd-23f-114-u it has 6 vertical jumper slots from top ms,ir,ry,dc,d1,d0  jumpers on ir,ry,dc,d0

[hamtronix]

i imagine you would move the d0 jumper to d1 . of course i have no liability to what you choose to do to your own equipment. but if it was me thats what i would do.

[amigaguy00]

yeah i tried that but still no good :-?

[amigaguy00]

no good changing the jumpers,maybe the drive cable when i disconnect the internal drive the external works and is detected as df1: so can't be the jumpers? and have df0:unreadable due to the internal  been disconnected. :headwall:

[Matt_H]

What's your power supply situation? If it's strained, running 2 floppy drives might be just too much for it.

[amigaguy00]

230 watt psu, somebody i spoke to said it may be the cia chip could this be possible knowing it does work when i disconnect the internal drive.

[amigaguy00]

could having the cdrom/dvd drives on different drive lables have effect on the floppy drives ie pc0: etc.

[Matt_H]

amigaguy00 wrote:
could having the cdrom/dvd drives on different drive lables have effect on the floppy drives ie pc0: etc.

It shouldn't.

I assume you're in a tower case? You might want to try the ol' secondary power feed trick. Instead of using the power header on the motherboard to power the floppy drive, you can plug a PSU lead in there to stabilize some of the power rails - the regular power connection sometimes isn't enough. Power the floppy drive directly from the PSU.

I've never done this though, so you might want to wait for details from someone who has before trying it.

[Amiga4k]

Got this off an Amiga Compatibility table.This is for internal, you probably have to swap to D1.

TEAC series: (Low-density drive).
Has 6 setting jumpers-MS, IR, RY, DC, D1, D0. To make it work, put jumpers on RY, DC & D0.