{"id":55,"date":"2020-10-05T14:47:10","date_gmt":"2020-10-05T14:47:10","guid":{"rendered":"https:\/\/stayornay.com\/mac84tv\/?page_id=55"},"modified":"2025-03-10T14:04:30","modified_gmt":"2025-03-10T14:04:30","slug":"ibm-ps-2-floppy-disk-drive-recapping-guide-alps-drive","status":"publish","type":"page","link":"https:\/\/mac84.net\/web\/repair-guides-documents\/ibm-ps-2-floppy-disk-drive-recapping-guide-alps-drive\/","title":{"rendered":"IBM PS\/2 Floppy Disk Drive Recapping Guide (ALPS drive)"},"content":{"rendered":"\n<p>This guide will hopefully help you repair your IBM PS\/2 floppy disk drive if it is no longer functioning correctly. Leaking capacitors could be one (of many) problems which may cause a floppy drive to stop working.<\/p>\n\n\n\n<p>In my experience usually only the two capacitors (seen in the middle of the drive) are the common ones to leak and cause problems. However, you can also replace the three 4.7uf \/ 16v capacitors as well, these are <strong>non-polarized<\/strong> (they don&#8217;t have a positive or negative end). Generally speaking, non-polarized capacitors can&#8217;t be replaced by polarized ones.<\/p>\n\n\n\n<p>In my repair I use <strong>tantalum<\/strong> <em>and<\/em> <strong>ceramic<\/strong> capacitors, but as long as the values and physical sizes are the same you can use whatever you wish. The Mouser.com and Manufacturer part numbers for the capacitors I used are listed below.<\/p>\n\n\n\n<p>Sometimes these drives require trace repair due to the damage the leaking capacitors have caused. The capacitors in these drives are very small and require a steady hand.<\/p>\n\n\n\n<p><strong>Capacitors Required:<\/strong><\/p>\n\n\n\n<ul><li><strong>4.7uf \/ 25v<\/strong> (x1)<br><a rel=\"noreferrer noopener\" href=\"https:\/\/www.mouser.com\/ProductDetail\/80-T495B475K25ATE700\" target=\"_blank\">Mouser #<\/a> 80-T495B475K25ATE700 &amp; Mfr. # T495B475K025ATE700<\/li><li><strong>10uf \/ 16v<\/strong> (x1)<br><a rel=\"noreferrer noopener\" href=\"https:\/\/www.mouser.com\/ProductDetail\/KEMET\/T491B106K016AT7280?qs=%2Fha2pyFaduj60hvVj4p7w1VcxYpGuhXpfHxPwALpah228aXil7rJwSb4Gg3Xh4JH\" target=\"_blank\">Mouser #<\/a> 80-T491B106K16AT7280 &amp; Mfr. # T491B106K016AT7280<\/li><li><strong>4.7uf \/ 16v<\/strong> (x3) <strong><em>These are non-polarized caps!<\/em><\/strong><br><a rel=\"noreferrer noopener\" href=\"https:\/\/www.mouser.com\/ProductDetail\/80-C1206C475Z4V\" target=\"_blank\">Mouser #<\/a> 80-C1206C475Z4V &amp; Mfr. # C1206C475Z4VACTU<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/mac84.net\/web\/wp-content\/uploads\/2020\/10\/IBM-PS2-Floppy-Drive-Recap-Guide-v3Web.jpg\"><img loading=\"lazy\" src=\"https:\/\/mac84.net\/web\/wp-content\/uploads\/2020\/10\/IBM-PS2-Floppy-Drive-Recap-Guide-v3Web-1024x690.jpg\" alt=\"Recapping Guide Diagram for Floppy Drive\n\" class=\"wp-image-56\" width=\"580\" height=\"390\" srcset=\"https:\/\/mac84.net\/web\/wp-content\/uploads\/2020\/10\/IBM-PS2-Floppy-Drive-Recap-Guide-v3Web-1024x690.jpg 1024w, https:\/\/mac84.net\/web\/wp-content\/uploads\/2020\/10\/IBM-PS2-Floppy-Drive-Recap-Guide-v3Web-300x202.jpg 300w, https:\/\/mac84.net\/web\/wp-content\/uploads\/2020\/10\/IBM-PS2-Floppy-Drive-Recap-Guide-v3Web-768x518.jpg 768w, https:\/\/mac84.net\/web\/wp-content\/uploads\/2020\/10\/IBM-PS2-Floppy-Drive-Recap-Guide-v3Web-1200x809.jpg 1200w, https:\/\/mac84.net\/web\/wp-content\/uploads\/2020\/10\/IBM-PS2-Floppy-Drive-Recap-Guide-v3Web.jpg 1451w\" sizes=\"(max-width: 580px) 100vw, 580px\" \/><\/a><figcaption>Above: Recapping Guide Diagram &#8211; Use the link below to view a high-res printable PDF guide.<\/figcaption><\/figure>\n\n\n\n<p><strong><a href=\"https:\/\/mac84.net\/web\/wp-content\/uploads\/2022\/01\/IBM-PS2-ALPS-Floppy-Drive-Recapping-Guide-v1-Mac84.pdf\">Download a high-quality PDF of this recapping guide (5.6 MB &#8211; PDF)<\/a><\/strong><\/p>\n\n\n\n<p><em>Please note:<\/em> This guide <strong>does not<\/strong> cover the drive controller circuit board. This controller board contains its own capacitors, but differs depending on the computer the drive was shipped with. You may need to replace those capacitors as well.<\/p>\n\n\n\n<p><strong>Are you new to recapping?<\/strong> <\/p>\n\n\n\n<p>If so I highly suggest you watch some tutorial videos and <em>practice, practice, practice<\/em>! on old junk boards, or something you don&#8217;t care about (like a broken VCR, etc). <br><br>My friend <strong>Bruce<\/strong> has some excellent recapping and beginner soldering videos on his <a href=\"http:\/\/youtube.com\/branchuscreations\" target=\"_blank\" rel=\"noreferrer noopener\">YouTube channel<\/a>, as well as suggestions of beginner tools to purchase, <a rel=\"noreferrer noopener\" href=\"https:\/\/www.youtube.com\/watch?v=SjgWo7mj8-w\" target=\"_blank\">check him out!<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This guide will hopefully help you repair your IBM PS\/2 floppy disk drive if it is no longer functioning correctly. Leaking capacitors could be one (of many) problems which may cause a floppy drive to stop working. In my experience usually only the two capacitors (seen in the middle of the drive) are the common&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":66,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/mac84.net\/web\/wp-json\/wp\/v2\/pages\/55"}],"collection":[{"href":"https:\/\/mac84.net\/web\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mac84.net\/web\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mac84.net\/web\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mac84.net\/web\/wp-json\/wp\/v2\/comments?post=55"}],"version-history":[{"count":4,"href":"https:\/\/mac84.net\/web\/wp-json\/wp\/v2\/pages\/55\/revisions"}],"predecessor-version":[{"id":756,"href":"https:\/\/mac84.net\/web\/wp-json\/wp\/v2\/pages\/55\/revisions\/756"}],"up":[{"embeddable":true,"href":"https:\/\/mac84.net\/web\/wp-json\/wp\/v2\/pages\/66"}],"wp:attachment":[{"href":"https:\/\/mac84.net\/web\/wp-json\/wp\/v2\/media?parent=55"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}