nfg.forums

I have been struggling to find a proper method to connect my SCSI2SD (5.1) to the HDD busy LED on the face of my Expert HD.

I've searched this site and I am finding competing ways of making this happen. I either get directed to this website...
https://gamesx.com/wiki/doku.php?id=x68000:led_board

...or I get directed to posts that describe an internal cable that has connections for the HDD LED built into it such as found here:
http://weintraub.hatenablog.com/entry/2018/10/08/235047

So I am probably being a little thick so I apologize for treading old ground but please answer this question...

I have an Expert HD and I am connecting a SCSI2SD ver. 5.1 using the existing internal cabling...what is the best method to connect the busy LED on this machine?

Here you can see that there is a pin for the HDD LED on the internal scsi cables (Pin 12 on 20 Pin / Pin 16 on 26 Pin cable).
Now you have to connect this to the LED Header of your scsi2sd. You can cut that cable out and solder it to your scsi2sd or (like me) use an 26Pin to 50 Pin Adapter from Arananet. There is a Header for the HDD Pin.
You must look which scsi, 20 or 26 pin you have. I use a X68000 XVI and that has the 26 Pin.

So this works for me fine, no soldering on the LED pcb.

Quote from: Jehuty on October 29, 2019, 05:06:57 PMHere you can see that there is a pin for the HDD LED on the internal scsi cables (Pin 12 on 20 Pin / Pin 16 on 26 Pin cable).
Now you have to connect this to the LED Header of your scsi2sd. You can cut that cable out and solder it to your scsi2sd or (like me) use an 26Pin to 50 Pin Adapter from Arananet. There is a Header for the HDD Pin.
You must look which scsi, 20 or 26 pin you have. I use a X68000 XVI and that has the 26 Pin.

So this works for me fine, no soldering on the LED pcb.

Yes I've tried this already...I have an original SASI cable so I've cut the line that connects to the "HDD LED" and then connected it to a jumper cable to the LED via on the SCSI2SD like this...



It lights up the HDD busy lamp but it stay on all the time. Perhaps your way works on a SCSI device but not on a SASI?

Maybe, i tried it on my XVI with SCSI.

Can this be used with a scsi2sd v5.0b as well? This board has a 2 pin led header, not a single solder point

@Jehuty ive done do this on my XVI and it works, using a cable I bought on buyee. I had to attach this supplied pcb to the scsi2sd v6's led pins to make it work though



This is the advert's image, not my scsi2sd, but it shows the little pcb

Sorry to dig up an old post, do you have a link to buy one of these adapters? looks like what i need for my scsi2sd.

Quote from: incrediblehark on June 23, 2021, 11:56:31 AMSorry to dig up an old post, do you have a link to buy one of these adapters? looks like what i need for my scsi2sd.

Sorry for not replying sooner.

The scsi cable and adapter was this one:

https://buyee.jp/item/yahoo/auction/x690495013

No worries, I ended up soldering the wire to the led pin directly which worked fine.

Hooking the LED blink pin up to one of the LED terminals on the SCSI2SD will work on SCSI systems, but I've never seen it work on SASI systems. With one terminal, it stays on all the time. With the other terminal, it's always off.