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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: brostenen on March 07, 2018, 12:46:35 AM

Title: TEAC FD-135HFN-414u Jumpersettings?
Post by: brostenen on March 07, 2018, 12:46:35 AM
Hi.
I got this old drive, from my parents first PC, and I did notice the row of jumpers on the drive. I can not find any information online, regarding jumpersettings to use this drive on an Amiga. If anyone know any source, then please let me know.
Title: Re: TEAC FD-135HFN-414u Jumpersettings?
Post by: LoadWB on March 07, 2018, 02:24:23 AM
With the RY and DC jumpers there it looks promising.  If you can take it apart and figure out if that jumper block also terminates pins 2 and 34 you could likely figure out the necessary settings.  

FG will ground the frame to the signal ground, and IR in most drives is a density restriction (locks the drive in either HD or 2D mode.)
Title: Re: TEAC FD-135HFN-414u Jumpersettings?
Post by: brostenen on March 08, 2018, 10:41:18 AM
Quote from: LoadWB;837018
With the RY and DC jumpers there it looks promising.  If you can take it apart and figure out if that jumper block also terminates pins 2 and 34 you could likely figure out the necessary settings.  

FG will ground the frame to the signal ground, and IR in most drives is a density restriction (locks the drive in either HD or 2D mode.)

After some more research, I found this page in the following link. (I googled alternatively)

http://embeddedsw.net/EMUFDD_Floppy_Hardware_Emulator_Home.html

On the bottom of the page, there is a jumper guide for floppy drives.
Then I inserted jumpers for "D0" and set the jumpers for RY and DC over the pins, making the RY jumped for RY-Pin34 and DC-Pin2.

So far so good.... I installed the drive in an external drive case, and it keeps on light on the led and there are no click sound.

What shall I look for now? As I feel that I am running in the dark.
Title: Re: TEAC FD-135HFN-414u Jumpersettings?
Post by: spaceman88 on March 08, 2018, 11:53:36 AM
Quote from: brostenen;837113
After some more research, I found this page in the following link. (I googled alternatively)

http://embeddedsw.net/EMUFDD_Floppy_Hardware_Emulator_Home.html

On the bottom of the page, there is a jumper guide for floppy drives.
Then I inserted jumpers for "D0" and set the jumpers for RY and DC over the pins, making the RY jumped for RY-Pin34 and DC-Pin2.

So far so good.... I installed the drive in an external drive case, and it keeps on light on the led and there are no click sound.

What shall I look for now? As I feel that I am running in the dark.


Here's a link to EAB where they talk about several drives http://eab.abime.net/showthread.php?t=30944  I've done several as internal drives, but never as an external drive. If your using it as an external do you need to move the jumper back to D1?
Title: Re: TEAC FD-135HFN-414u Jumpersettings?
Post by: brostenen on March 08, 2018, 12:17:01 PM
I jumped it to D1 instead of D0, still the same result. I don't know if I was 100% clear on the internal drive in my Amiga. It will not start clicking, so something is hanging. Without the external drive, the 500 is working beautifully, without issues.
Title: Re: TEAC FD-135HFN-414u Jumpersettings?
Post by: LoadWB on March 08, 2018, 04:00:05 PM
Usually if the drive continuously runs it means the cable is installed up-side down, so all control lines are grounded.

Once it's connected, does info show a DF1: or DF2: drive?
Title: Re: TEAC FD-135HFN-414u Jumpersettings?
Post by: brostenen on March 08, 2018, 10:03:47 PM
Boy do I feel stupid... This old teac drive is build with the pin's in reverse/upside-down, never seen that before. :lol: I found this out, by accident, while looking at the drive it self earlier today.

Yes... Now it is shoving up in both workbench and there is now click sound.
Another thing is now the issue. The drive can not read any disk. It simply refuses to read, and reports all disks as bad.

I have had it opened, and the heads just keeps moving forth and back one millimeter, in the start of any disk inserted.

I even had the jumpers set back to PC position, and used a PC/Amiga floppy converter ribbon cable, and the drive display the same results.

I have cleaned the heads with alcohol today, and lubricated the "snail" that drives the heads back and forth.

EDIT:
Uhhh... Forgot to mention, that the drive shows up as DF1 in WB, when the jumper is set to D0, when the drive is installed in my external case/cage.