Lmst

This is a Commodore 1541C ASSY 251854 Rev A mainboard. It is from a parts drive, where I took of the servo controller for a different drive, and where the read/write head is dead (typical Mitsumi).
#commodore #c1541 #floppydrive

A square green PCB with a handful of large ICs, two big electrolytic caps and two metal can voltage regulators.

Repairing a Commodore 1541 Floppy Drive on Adrian's Digital Basement
#Commodore64 #C64 #Commodore1541 #C1541 #RetroComputing #VintageHardware #AdriansDigitalBasement #FloppyDriveRepair
https://theoasisbbs.com/repairing-a-commodore-1541-floppy-drive-on-adrians-digital-basement/?feed_id=1285&_unique_id=6790fb15073bc

Very interesting transformer on this one. It is missing the usual insulating tape. I guess it is not strictly necessary. But it also shows the thin wire on the primary, and the much chunkier windings on the secondary side.
#retrocomputing #commodore #c1541

A transformer showing orange copper windings.

21x Faster: TCBM2SD vs PI1541-III
#pi1541 #TCBM2SD #c64 #c1541 #plus4 #retrocomputing
https://theoasisbbs.com/21x-faster-tcbm2sd-vs-pi1541-iii/?feed_id=781&_unique_id=67642b54d4c7e

Yay! Finally 1541 followers! Celebratory 1541 tower of power!
#commodore #c1541 #retrocomputing

Three Commodore 1541 floppy disk drives stacked on top of each other. All have different mechanisms and colors.

Testing a Commodore 1541 II Floppy Drive
#c64 #commodore64 #c1541 #commodore1541
https://theoasisbbs.com/testing-a-commodore-1541-ii-drive/?feed_id=300&_unique_id=673b4cdcc08a8

By the way: I added a 1541-II as device 9 to my setup so we can use the Franken-1541 as device 8 for the story disk and the 1541-II hosts the save disk. No more swapping! Yay!
#commodore #c1541 #c64 #retrogaming

A beige 1541-II disk drive on top of a beige 1541 disk drive on top of a grey ALPS 1541.

Exploring the Pi1541-III: Part II – Review | Top 5 demo | Commodore 116 & Plus/4
#c64 #pi1541 #c1541 #c128 #retrocomputing
https://theoasisbbs.com/exploring-the-pi1541-iii-part-ii-review-top-5-demo-commodore-116-plus-4/?feed_id=219&_unique_id=6733632934506

Exploring the PI1541-III: A Floppy Drive Simulator for Commodore Enthusiasts
#c64 #pi1541 #c1541 #c128 #retrocomputing
https://theoasisbbs.com/exploring-the-pi1541-iii-a-floppy-drive-simulator-for-commodore-enthusiasts/?feed_id=196&_unique_id=673211ade3583

Stocked up on LAG570s. I still have a few BA6301, which is the other motor driver used in the Mitsumi 1541s. So I should be able to repair more failing drives.
#commodore #c64 #c1541 #floppydrive

Three DIP16 chips on a wooden surface. Silkscreen says LAG570.

I wanted to swap the cases on my Frankenstein 1541s. Both drives are cobbled together from different broken drives. This is why one ended up with a beige case and dark mechanism and the other with a grey case and beige mechanism.
#retrocomputing #commodore #c1541 #c64

Another broken 1541 is on my desk today. It is a Mitsumi drive, so a dead head is always a possibility. But this one has supposedly a healthy head -- for now! So what could be the issue?

#commodore #c1541 #floppydrive #floppydisk

I should really swap the cases of the top and bottom drives! Or what do you think?
And I am still missing a beige ALPS mechanism.
#commodore #c64 #c1541 #floppydrive

Three commodore 1541 floppy disk drives stacked on top of each other. The top one has a white mechanism and darker beige case. Middle one has dark brown mech and dark beige case. Bottom one has white case and dark brown mech.

Me thinks that the CPU in my Frankenstein 1541 has been replaced. And on top of that it’s an A variant. The date code is 1983, while all other ICs are from 1984. Works fine though.
#commodore #c1541

Close-up of a circuit board featuring multiple integrated circuits and capacitors.one 6502 CPU and two 6522 VIAs are visible.

I finally got a replacement shell for the broken Mitsumi 1541. It now has a replacement ROM, the dead head bodge, and finally a new shell. It doesn't match the color of the drive mech, but I already have dark brown ALPS drives in beige 1541 cases, so the other way around was still missing. :)
#commodore #c1541 #floppydrive

An opened 1541 floppy drive, showing an orange foppy disk inserted, the main PCB with a little perfboard bodge and many electronic components.

Closeup of the perfboard bodge that reactivates R/W capability on a broken 1541 read head.

Episódio 152 – A linha Commodore 264 – Parte B

https://retropolis.com.br/2024/05/15/episodio-152-parte-b/

#Podcast #3Plus1 #AlemanhaOcidental #Argentina #atari #Aurrer #BilHerd #C1541 #Canad #Canadian4 #Commodore #Commodore116 #Commodore16 #Commodore264 #Commodore64 #CommodoreJapan #CommodoreMAX #CommodorePlus4 #CommodoreVIC20 #demoscene #Drean #EmpireStrikesBack #famlia #GEOS #GrupoSigma #Hungria #IEC #JackTramiel #jogo #KondiKrush #Mxico #MOS #NTSC #PAL #PALN #podcast #Retrocomputao #Ret

And of course we also need brand new 6522 VIAs. These are drop in replacements. Which is great news for all #c1541 and #vic20 users (and of course PET users, too!).
#retrocomputing

A WDC 65C22N chip in DIP40 packaging on a wooden surface.

New video:
Zombie Floppy: How To Revive A Broken 1541 Head

The Commodore 1541 floppy drive is a real workhorse, that was used by millions of C64 users.The Mitsumi drive assembly has the annoying fault to have their drive heads fail due to some wires going open inside of the read/write head. A clever user by the nickname of Ruuudi has designed a little bodge PCB to make the dead drive head work again:

https://youtu.be/MpDwxq488f0

#retrocomputing #commodore #c64 #c1541 #floppydrive

Another dead C1541 on our desk. This one was reported as "not working". It was gutted for its 6502 and 6522 VIA chips, but supposedly even with those in place it wasn't working. So let's have a closer look...
#commodore #c64 #c1541 #floppydrive

New video for Patrons:

Zombie Floppy: How To Revive A Broken 1541 Head

https://www.patreon.com/posts/zombie-floppy-to-103225126?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link
#retrocomputing #floppydrive #commodore #c1541 #c64

#c1541

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