I tried to save this rare floppy drive (Commodore 1551)

The Commodore 1551 might look like a humble disk drive but it’s actually a somewhat rare peripheral sporting a full 8-bit computer using obscure Commodore chips. This one is broken so let’s try to fix it.

— Links

Second channel video where I got this drive:

I found this replacement for the 6525 and 6510T:
https://www.amibay.com/threads/1551-replacement-for-6510t-and-6523-a-6525-a.108039/

Schematics used in this video:
https://www.zimmers.net/anonftp/pub/cbm/schematics/drives/new/1541/1540-1541_Disk_Drive_Service_Manual_314002-01_(1985_Nov).pdf
https://www.zimmers.net/anonftp/pub/cbm/schematics/drives/new/1551/1551main.gif
https://www.zimmers.net/anonftp/pub/cbm/schematics/drives/new/1551/251860.gif
https://www.zimmers.net/anonftp/pub/cbm/schematics/drives/new/1551/1551crt.gif
https://www.zimmers.net/anonftp/pub/cbm/schematics/drives/new/1551/paddle-251925.png
https://www.zimmers.net/anonftp/pub/cbm/schematics/drives/new/1551/index.html

Information on the 1551 including the paddle:

Converting a Commodore 1541 or 1570 Drive into a 1551

1551 Repair at The Retro Channel:

Command to format the disk:
https://plus4world.powweb.com/plus4encyclopedia/500047

Adrian’s Digital Basement ][ (Second Channel)
https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g

Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement

My GitHub repository:
https://github.com/misterblack1?tab=repositories

— Tools

Deoxit D5:
https://amzn.to/2VvOKy1
http://store.caig.com/s.nl/it.A/id.1602/.f

O-Ring Pick Set: (I use these to lift chips off boards)
https://amzn.to/3a9x54J

Elenco Electronics LP-560 Logic Probe:
https://amzn.to/2VrT5lW

Hakko FR301 Desoldering Iron:
https://amzn.to/2ye6xC0

Rigol DS1054Z Four Channel Oscilloscope:
https://www.rigolna.com/products/digital-oscilloscopes/1000z/

Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
https://amzn.to/3adRbuy

TL866II Plus Chip Tester and EPROM Programmer: (The MiniPro)
https://amzn.to/2wG4tlP
https://www.aliexpress.com/item/33000308958.html

TS100 Soldering Iron:
https://amzn.to/2K36dJ5
https://www.ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853

EEVBlog 121GW Multimeter:
121GW Multimeter

DSLogic Basic Logic Analyzer:
https://amzn.to/2RDSDQw
https://www.ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672

Magnetic Screw Holder:
https://amzn.to/3b8LOhG
https://www.harborfreight.com/4-inch-magnetic-parts-tray-90566.html

Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
https://www.ebay.com/itm/14-16-18-20-24-28-32-40-pin-IC-Test-Universal-ZIF-Socket-Fs/303206721971

RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
http://www.retrotink.com/

Plato (Clone) Side Cutters: (Order Five)
https://www.ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184

Heat Sinks:
https://www.aliexpress.com/item/32537183709.html

Little squeezy bottles: (available elsewhere too)
https://amzn.to/3b8LOOI

— Instructional videos

My video on chip removal without damage:

— Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino

About The Author

Classic Computing Bot

The Global News section of classiccomputing.net is your go-to destination for staying ahead in the ever-evolving world of technology. This dynamic hub offers a rich blend of news articles, features, and analyses from across the internet, ensuring you’re always informed about the latest developments and innovations in computing.
Whether you’re interested in cutting-edge advancements or have a passion for vintage tech, this section provides a comprehensive resource that caters to all tastes within the computational realm. From groundbreaking breakthroughs to classic systems, Global News keeps you engaged with the past, present, and future of technology—all in one convenient place.

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