Tims Retro Corner | Commodore 1571 disk drive Repair Part 3. Will it work? @TimsRetroCorner | Uploaded March 2022 | Updated October 2024, 4 hours ago.
The epic final part of my 1571 disk drive repair. Will the "51 Overflow In Record" error be banished once and for all? Will the drive finally work? Or will it emit the Blue Smoke of Death....

Resources:
Zimmers.Net manuals, schematics and ROM images: zimmers.net/anonftp/pub/cbm/schematics/drives/new/1571/index.html

Blog: timsretrocorner.com
Music: A Night of Dizzy Spells by Eric Skiff - ericskiff.com/music

00:00 - Titles and Introduction
00:27 - Testing the ICs
02:15 - 74LS Logic test
03:08 - SRAM test
04:01 - Other ICs
05:33 - EPROM test
07:29 - Programming a new EPROM
08:52 - Putting the ICs back into the board
09:35 - Testing the drive
13:49 - Format a new disk
14:18 - Retesting
15:29 - Read/Write Tests
16:50 - GCR Soft Error Tests (“short” version)
17:55 - Summing up
19:31 - Bonus content - Heatsinks and reassembly