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Re: Problem with floppy drives
Posted: Wed Sep 17, 2025 6:02 pm
by Tesla
Hi Dave,
These are the pictures, probably I am wrong, you must know that my soldering capability and undestanding is very very low.
Give me your opinion.
Thank for your help.
Marco
Re: Problem with floppy drives
Posted: Wed Sep 17, 2025 10:44 pm
by Dave
It looks fine to me. It's not a dry joint, as far as I can tell from the potatograph.
Re: Problem with floppy drives
Posted: Thu Sep 18, 2025 8:36 pm
by Derek_Stewart
Hi,
I think you need to contact Tetroid, who maybe able help, unless all sanction prevent contact.
Can you check cable to verify what 3 wires are twisted?
Looking on Wikipedia for the floppy drive connector:
Code: Select all
PC DRIVE QL
12 DRVSB Drive Select B 14
13 GND 13
14 DRVSA Drive Select A 12
The idea is to select PC Drive set as Drive 1 or DSRVSB, and change the drive ID to DRVSA
Re: Problem with floppy drives
Posted: Fri Sep 19, 2025 5:17 pm
by Tesla
Hi Derek.
I get the cable by you, time ago
and the 3 wires are twisted. Initially everything worked well, SGC + Qimsi + floppies, but, then there was a lot of increasingly serious malfunctions.
When I replaced the SGC with an old GC everything came back ok, except one of the floppies that does not work. I think your cable is ok.
I will try to put back the original floppy that I had replaced thinking it was broken and then we see. The new one was purchased on ebay and I am not sure it is fully functional.
I'll let you know.
Thanks for the help.
Marco
I
Re: Problem with floppy drives
Posted: Sat Sep 20, 2025 7:16 am
by Derek_Stewart
Tesla wrote: Fri Sep 19, 2025 5:17 pm
Hi Derek.
I get the cable by you, time ago
and the 3 wires are twisted. Initially everything worked well, SGC + Qimsi + floppies, but, then there was a lot of increasingly serious malfunctions.
When I replaced the SGC with an old GC everything came back ok, except one of the floppies that does not work. I think your cable is ok.
I will try to put back the original floppy that I had replaced thinking it was broken and then we see. The new one was purchased on ebay and I am not sure it is fully functional.
I'll let you know.
Thanks for the help.
Marco
I
If you want I can look at the SGC, I have some spare parts and verify the disk operation
Re: Problem with floppy drives
Posted: Sat Sep 20, 2025 3:12 pm
by Tesla
Hi Derek,
Thank very much for your kindness.
Send me your address by PM, I will send you the card.
Best regards
Marco