Atari 1040 STe Drive Swap Mod Problem

[oguzog]

my internal drive has no jumper selection. it is Sony MP-F11W-5DU

[tzok]

It has a Drive ID switch on a side (near the power connector).

[oguzog]

Really does :) seems 3 way switch. it is positioned at 0

I am measuring my cable now. I will list which pin goes to where. This will be a good start. Because my friend maybe did something wrong in cable.

[oguzog]

Progress;

I think i have faulty connection in my cable;

On the left my cable. on the right correct diagram ( i suppose)

So first i will desolder FD14 to DIN5.
then desolder FD10 to DIN8 and solder to DIN5.

Will this be enough?

Also this correct guide states all the odd pins must be connected to 3 and 7.

Is that mandatory? if i leave like this (Only 13 and 27 connected to 3 and 7) will i be in trouble again?

[tzok]

You don't have to connect all odd pins to ground, 2 is enough. If you have shorted FDD pins 10 and 16, and put Motor On signal there it is not a big deal. Unfortunately you have the Drive Select B (DIN-14 pin 5) signal on FDD pin 14, which is not connected at all on Gotek.

Gotek ignores Motor On signal completely, it cares only about Drive Select. Depending on the jumper position (S1, S0, M0) it can pick this signal from FDD pin 10, 12, or 16, but not from the 14.

On the STf/e side the Drive Select B signal is (by default) routed to FDD connector pin 5 (unlike the original ST, where pin 5 was Drive Select A).

[oguzog]

I've corrected my cabling and it works great!

Thanks tzok!