exxos's Atari, Amiga & retro forum

Hi,

I am a bit confused how to get a HDD activity LED from a CF card (mounted in a TF accelerator or not).. Is it just as simple as soldering a flying lead on pin 39 and bring it into the LED ?

There are adaptors rastport.com (ka47b), that claim 'active correction' of the HDD signal so it's not always on. The little IC (74HCT14) seems to be an inverting Schmidt trigger, is that's all that needed, just an invert ?

I have a Checkmate 1500 case that has a little PCB with Power/HDD LEDs, which worked great with a flying lead from the A500 keyboard connector for the Power LED.

I'll give you the simple version of what I found out, but you should do some Google work....

Connect the negative side of the LED, yes, the negative side, to pin 39 on the IDE
Connect the positive side of the LED to a 5v line in the Amiga, any 5v line.... but, 5v is just a wee bit too much power, so you need to add a little resistor to the 5v line to bring the volts down. Commonly used is a 330ohm resistor.

yea I tried that yesterday before I posted here and i think my cfcard or adapter isn't compatible hence looking for a way to tap it from the TF1230 itself.

Have you tried Google.

There is a simple fix for CF adapters that don't work with A1200 HDD LED's.