ALPS DF354N floppy cable - Atari Falcon

Update your old 720k to a 1.44 drive etc.
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rubber_jonnie
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Re: ALPS DF354N floppy cable - Atari Falcon

Post by rubber_jonnie »

ap_kelly wrote: Wed Jul 15, 2020 2:33 pm Found it :-)

I have the C302096-001A

Thanks for the info.
No problem
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Re: ALPS DF354N floppy cable - Atari Falcon

Post by ap_kelly »

@rubber_jonnie I don't suppose you know which chip in the Falcon relates to this fix as well?

https://www.exxosforum.co.uk/forum/viewt ... =17&t=1395

My resistors for both fixes 3&4 have arrived now (just waiting on my recent PSU capacitors order now), I just need to get brave and give it a go, though if I get stuck the members of the local Sydney Amiga Users Group have offered to help me out. They have some professional electrical engineers as members, and have restored lots of other machines.
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Re: ALPS DF354N floppy cable - Atari Falcon

Post by exxos »

I have just updated the topic for the Falcon.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: ALPS DF354N floppy cable - Atari Falcon

Post by ap_kelly »

Excellent.....although that U35 chip is terribly small....I might need a smaller tip for my soldering iron.

Are you able to update the page for the bussed 10k resister to highlight where the "raised leg" connects to on the Falcon.

Thanks.
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Re: ALPS DF354N floppy cable - Atari Falcon

Post by rubber_jonnie »

ap_kelly wrote: Fri Jul 17, 2020 3:12 pm Excellent.....although that U35 chip is terribly small....I might need a smaller tip for my soldering iron.

Are you able to update the page for the bussed 10k resister to highlight where the "raised leg" connects to on the Falcon.

Thanks.
It's a 74LS06
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Re: ALPS DF354N floppy cable - Atari Falcon

Post by exxos »

Ah it might be a smt chip on the falcon, ive not checked.. AFAIK nobody has done the falcon mod yet.. I guess you could just solder the resistors on the back of the floppy connector instead...
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: ALPS DF354N floppy cable - Atari Falcon

Post by rubber_jonnie »

exxos wrote: Fri Jul 17, 2020 3:23 pm Ah it might be a smt chip on the falcon, ive not checked.. AFAIK nobody has done the falcon mod yet.. I guess you could just solder the resistors on the back of the floppy connector instead...
Ahh, I looked at the linked topic and assumed. If it's tiny you might be right and it's SMT.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Re: ALPS DF354N floppy cable - Atari Falcon

Post by ap_kelly »

So this is what I'm staring at, you can see the U35 socket at the bottom. The bussed 10k resistor held in place with bluetak prior to soldering.
IMG_20200717_235551.jpg
IMG_20200717_235551.jpg (295.83 KiB) Viewed 3772 times
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Re: ALPS DF354N floppy cable - Atari Falcon

Post by DoG »

Pin 6, 8 and 10 have visable vias close by. So maybe easier to use them? Pin 2 I can't see on the pic where it goes but I'm sure it also have a via somewhere. Measure that.

5V on pin 14 also has a via.
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Re: ALPS DF354N floppy cable - Atari Falcon

Post by ap_kelly »

Here is a better photo, if I can use those little holes instead of soldering on the legs of the chip, that'd probably be a lot easier.
IMG_20200718_124115.jpg
IMG_20200718_124115.jpg (247.51 KiB) Viewed 3765 times
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