Akai S950

[banksy76]

Hi Jeff.
The S950 is able to accept the image and will display/list the floppy content, enabling me to scroll through the titles of the various samples. Is this what you mean?

[banksy76]

Jeff, with regards to my previous post, is this what you meant when you asked if I was 'able to list the floppy content'?

[Jeff]

Jeff, with regards to my previous post, is this what you meant when you asked if I was 'able to list the floppy content'?

Yes exactly.

[banksy76]

Jeff, how likely is it that a solution exists that will resolve the issue of the HxC'x incompatibility with HD disk images when being used with the S950?

[Jeff]

Jeff, how likely is it that a solution exists that will resolve the issue of the HxC'x incompatibility with HD disk images when being used with the S950?

A solution exist for sure, but to find it i must have a close look (with an oscilloscope...) to the S950 to understand the problem. (I don't have the S950...)
Maybe someone else can help here ?

[Jeff]

Jeff, how likely is it that a solution exists that will resolve the issue of the HxC'x incompatibility with HD disk images when being used with the S950?

Something to try :

Put an 56K resistor on R18 (S950 original value) and replace the 74LS38 chip by a 74LS00 on the HxC.

[banksy76]

Jeff, how likely is it that a solution exists that will resolve the issue of the HxC'x incompatibility with HD disk images when being used with the S950?

Something to try :

Put an 56K resistor on R18 (S950 original value) and replace the 74LS38 chip by a 74LS00 on the HxC.

Ok Jeff, I have ordered a 74LS00 chip and shall post back once I have received it and tried it out.

[Jeff]

Jeff, how likely is it that a solution exists that will resolve the issue of the HxC'x incompatibility with HD disk images when being used with the S950?

Something to try :

Put an 56K resistor on R18 (S950 original value) and replace the 74LS38 chip by a 74LS00 on the HxC.

Ok Jeff, I have ordered a 74LS00 chip and shall post back once I have received it and tried it out.

And an 74HC00 if possible (sorry, i forgot to mention it...)

[banksy76]

Both the 74LS00 and the 74HC00 have now been ordered.

[banksy76]

The 74LS00 and 74HC00 chips have now arrived and I shall be trying them out in the HxC later on.

I have put a resistor matching that of the original value back on R18 as instructed. Is a connection still required between #30 of the floppy data cable and the +5 wire of the floppy power cable in order to supply the necessary voltage?

[Jeff]

The 74LS00 and 74HC00 chips have now arrived and I shall be trying them out in the HxC later on.

I have put a resistor matching that of the original value back on R18 as instructed. Is a connection still required between #30 of the floppy data cable and the +5 wire of the floppy power cable in order to supply the necessary voltage?

No.

[banksy76]

I have spent the last few hours attempting to successfully save and load to HD floppy images with both the 74LS00 and the 74HC00 chip but the situation remains the same.

I have attempted with both firmware 6.0.0 and 6.3.6
I have tried with various SD cards and also different floppy cables.

Please advise.

[Jeff]

I have spent the last few hours attempting to successfully save and load to HD floppy images with both the 74LS00 and the 74HC00 chip but the situation remains the same.

I have attempted with both firmware 6.0.0 and 6.3.6
I have tried with various SD cards and also different floppy cables.

Please advise.

Exactly the same ?

I sent you a new firmware.

[banksy76]

I have tried the new firmware with all three chips and still no success.

I am able to save and load to the DD images as before but when trying to save to a HD image the S950 will display either 'disk not mounted' or 'disk is not prepared. You must format it'.

When trying to load from a HD images it will start to load and then the S950 will display 'Bad data from disk', same as before.

[Jeff]

I have tried the new firmware with all three chips and still no success.

I am able to save and load to the DD images as before but when trying to save to a HD image the S950 will display either 'disk not mounted' or 'disk is not prepared. You must format it'.

When trying to load from a HD images it will start to load and then the S950 will display 'Bad data from disk', same as before.

Can you see the floppy content with a HD floppy disk image ?