{"id":2027,"date":"2022-11-23T10:38:46","date_gmt":"2022-11-23T15:38:46","guid":{"rendered":"https:\/\/biosrhythm.com\/?p=2027"},"modified":"2022-11-24T10:43:44","modified_gmt":"2022-11-24T15:43:44","slug":"recapping-an-epson-hx-20-slabtop","status":"publish","type":"post","link":"https:\/\/biosrhythm.com\/?p=2027","title":{"rendered":"Recapping an Epson HX-20 Slabtop"},"content":{"rendered":"\n<p>(This was originally a Twitter thread from March 24, 2020)<\/p>\n\n\n\n<p><em>March 24, 2020<\/em><\/p>\n\n\n\n<p>The Epson HX-20 is on the bench for some TLC like a new battery, new capacitors, cassette tape belt, and possibly more. Maybe I\u2019ll eventually dial a BBS with it.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-1 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242649818788487168-ET7Ha_7XQAAnPVE.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242649818788487168-ET7Ha_7XQAAnPVE-840x630.jpg\" alt=\"\" data-id=\"2028\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242649818788487168-ET7Ha_7XQAAnPVE.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2028#main\" class=\"wp-image-2028\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242649818788487168-ET7Ha_7XQAAnPVE-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242649818788487168-ET7Ha_7XQAAnPVE-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242649818788487168-ET7Ha_7XQAAnPVE-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242649818788487168-ET7Ha_7XQAAnPVE.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<!--more-->\n\n\n\n<p>It does work though. I\u2019ve removed the dead NiCd battery pack and powered it through the internal battery terminals at 5.5v (range is 4.5v to 6.0v on the battery). The display is super dim (likely bad caps). It has a Motorola ROM.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_gX0AI56fV-840x630.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_gX0AI56fV-840x630.jpg\" alt=\"\" data-id=\"2029\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2029#main\" class=\"wp-image-2029\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_gX0AI56fV-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_gX0AI56fV-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_gX0AI56fV-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_gX0AI56fV.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_iWAAERW_1-840x630.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_iWAAERW_1-840x630.jpg\" alt=\"\" data-id=\"2030\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2030#main\" class=\"wp-image-2030\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_iWAAERW_1-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_iWAAERW_1-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_iWAAERW_1-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242650729304784898-ET7IP_iWAAERW_1.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-1.jpg\"><img loading=\"lazy\" width=\"600\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-1-600x800.jpg\" alt=\"\" data-id=\"2034\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-1.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2034#main\" class=\"wp-image-2034\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-1-600x800.jpg 600w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-1-225x300.jpg 225w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-1-768x1024.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-1.jpg 900w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><em>March 25, 2020<\/em><\/p>\n\n\n\n<p>As luck has it, <a href=\"https:\/\/twitter.com\/TubeTimeUS\">@TubeTimeUS<\/a> is also refurbing a HX-20. This will help tremendously.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">this is my cute little Epson HX-20. it has some issues i&#39;m going to try to fix <a href=\"https:\/\/t.co\/qOgkA1l7iO\">pic.twitter.com\/qOgkA1l7iO<\/a><\/p>&mdash; Tube Time (@tubetime@mastodon.social) (@TubeTimeUS) <a href=\"https:\/\/twitter.com\/TubeTimeUS\/status\/1240771265834541056?ref_src=twsrc%5Etfw\">March 19, 2020<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<p>Here\u2019s the HX-20 main board. Looking closely it looks like there is some capacitor leakage. Here\u2019s C7.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMnXkAM6M_D-840x630.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMnXkAM6M_D-840x630.jpg\" alt=\"\" data-id=\"2031\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2031#main\" class=\"wp-image-2031\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMnXkAM6M_D-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMnXkAM6M_D-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMnXkAM6M_D-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMnXkAM6M_D.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMJXkAIFGnY-840x630.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMJXkAIFGnY-840x630.jpg\" alt=\"\" data-id=\"2032\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2032#main\" class=\"wp-image-2032\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMJXkAIFGnY-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMJXkAIFGnY-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMJXkAIFGnY-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMJXkAIFGnY.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-2.jpg\"><img loading=\"lazy\" width=\"600\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-2-600x800.jpg\" alt=\"\" data-id=\"2035\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-2.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2035#main\" class=\"wp-image-2035\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-2-600x800.jpg 600w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-2-225x300.jpg 225w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-2-768x1024.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1242984986036310018-ET_4QMKWoAEeLyL-2.jpg 900w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><em>March 28, 2020<\/em><\/p>\n\n\n\n<p>Getting back to the Epson HX-20. I\u2019ve started removing the old capacitors and cleaning any damage that seeped under the solder mask. Seems limited to C1 and C7.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-4 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAAWwMx-840x630.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAAWwMx-840x630.jpg\" alt=\"\" data-id=\"2036\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2036#main\" class=\"wp-image-2036\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAAWwMx-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAAWwMx-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAAWwMx-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAAWwMx.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-esWAAA83cf-840x630.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-esWAAA83cf-840x630.jpg\" alt=\"\" data-id=\"2037\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2037#main\" class=\"wp-image-2037\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-esWAAA83cf-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-esWAAA83cf-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-esWAAA83cf-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-esWAAA83cf.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXQAApkCx-840x630.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXQAApkCx-840x630.jpg\" alt=\"\" data-id=\"2038\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2038#main\" class=\"wp-image-2038\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXQAApkCx-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXQAApkCx-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXQAApkCx-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXQAApkCx.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAEP0Vh.jpg\"><img loading=\"lazy\" width=\"600\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAEP0Vh-600x800.jpg\" alt=\"\" data-id=\"2039\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAEP0Vh.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2039#main\" class=\"wp-image-2039\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAEP0Vh-600x800.jpg 600w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAEP0Vh-225x300.jpg 225w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAEP0Vh-768x1024.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243965447374082048-EUNz-euXYAEP0Vh.jpg 900w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>All electrolytic capacitors have been removed. Some were easier than others. No other damage from what I can see.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0bWsAEsXb1.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0bWsAEsXb1-840x630.jpg\" alt=\"\" data-id=\"2040\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0bWsAEsXb1.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2040#main\" class=\"wp-image-2040\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0bWsAEsXb1-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0bWsAEsXb1-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0bWsAEsXb1-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0bWsAEsXb1.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0kWsAAilcg.jpg\"><img loading=\"lazy\" width=\"600\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0kWsAAilcg-600x800.jpg\" alt=\"\" data-id=\"2041\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0kWsAAilcg.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2041#main\" class=\"wp-image-2041\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0kWsAAilcg-600x800.jpg 600w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0kWsAAilcg-225x300.jpg 225w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0kWsAAilcg-768x1024.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0kWsAAilcg.jpg 900w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0UX0AAi6Ni.jpg\"><img loading=\"lazy\" width=\"600\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0UX0AAi6Ni-600x800.jpg\" alt=\"\" data-id=\"2042\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0UX0AAi6Ni.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2042#main\" class=\"wp-image-2042\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0UX0AAi6Ni-600x800.jpg 600w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0UX0AAi6Ni-225x300.jpg 225w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0UX0AAi6Ni-768x1024.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243969471615819776-EUN3o0UX0AAi6Ni.jpg 900w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>All new electrolytic capacitors installed. Height is an issue here so I ordered new miniature caps from Mouser.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-1 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243975285646770179-EUN87OkXQAIBck2.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243975285646770179-EUN87OkXQAIBck2-840x630.jpg\" alt=\"\" data-id=\"2043\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243975285646770179-EUN87OkXQAIBck2.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2043#main\" class=\"wp-image-2043\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243975285646770179-EUN87OkXQAIBck2-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243975285646770179-EUN87OkXQAIBck2-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243975285646770179-EUN87OkXQAIBck2-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243975285646770179-EUN87OkXQAIBck2.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>Testing the new capacitors and the display is just as dim as it was before. Look closely and you can see inverse text. Verified 7V supply is good as is the variable resistor controlling the contrast.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-1 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243978686870761472-EUOABR3WsAEafnO-840x630.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243978686870761472-EUOABR3WsAEafnO-840x630.jpg\" alt=\"\" data-id=\"2044\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2044#main\" class=\"wp-image-2044\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243978686870761472-EUOABR3WsAEafnO-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243978686870761472-EUOABR3WsAEafnO-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243978686870761472-EUOABR3WsAEafnO-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243978686870761472-EUOABR3WsAEafnO.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>Success! The Epson HX-20 display works well now. Pro-tip: after installing and cutting the excess through hole component leads, reflow the solder to ensure a good connection.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0WXYAAqlL2-840x630.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0WXYAAqlL2-840x630.jpg\" alt=\"\" data-id=\"2045\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2045#main\" class=\"wp-image-2045\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0WXYAAqlL2-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0WXYAAqlL2-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0WXYAAqlL2-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0WXYAAqlL2.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0HXkAIR_Zi-1.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0HXkAIR_Zi-1-840x630.jpg\" alt=\"\" data-id=\"2047\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0HXkAIR_Zi-1.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2047#main\" class=\"wp-image-2047\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0HXkAIR_Zi-1-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0HXkAIR_Zi-1-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0HXkAIR_Zi-1-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1243984830481813508-EUOFm0HXkAIR_Zi-1.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>From what I gather, this Epson HX-20 was part of a Motorola kit that was used to flash EPROMs for Motorola radios. It came with a EPROM programmer sidecar.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244001623157944320-EUOU4VmXkAEYi6F-600x800.jpg\"><img loading=\"lazy\" width=\"600\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244001623157944320-EUOU4VmXkAEYi6F-600x800.jpg\" alt=\"\" data-id=\"2048\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2048#main\" class=\"wp-image-2048\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244001623157944320-EUOU4VmXkAEYi6F-600x800.jpg 600w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244001623157944320-EUOU4VmXkAEYi6F-225x300.jpg 225w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244001623157944320-EUOU4VmXkAEYi6F-768x1024.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244001623157944320-EUOU4VmXkAEYi6F.jpg 900w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244035445933199360-EUOzpCiXYAAyqhR.jpg\"><img loading=\"lazy\" width=\"600\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244035445933199360-EUOzpCiXYAAyqhR-600x800.jpg\" alt=\"\" data-id=\"2049\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244035445933199360-EUOzpCiXYAAyqhR.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2049#main\" class=\"wp-image-2049\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244035445933199360-EUOzpCiXYAAyqhR-600x800.jpg 600w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244035445933199360-EUOzpCiXYAAyqhR-225x300.jpg 225w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244035445933199360-EUOzpCiXYAAyqhR-768x1024.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244035445933199360-EUOzpCiXYAAyqhR.jpg 900w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><em>March 29, 2020<\/em><\/p>\n\n\n\n<p>Testing the Epson HX-20 printer today. It\u2019s a dot matrix that I believe prints one row of dots at a time. No ribbon yet but it moves then stops after attempting to print a row and says charge battery. 6v into battery terminals. Thoughts?<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1244291511090581506-tqtkjzPc2WvDWWGA.mp4\"><\/video><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><em>April 4, 2020<\/em><\/p>\n\n\n\n<p>Making slow progress on the Epson HX-20. Screen now reliably bright (trace damage from cap leak). Printer works reliably but only at 6.5v. The original cassette belt is good and it works.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-4 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92dXgAEBAib.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92dXgAEBAib-840x630.jpg\" alt=\"\" data-id=\"2051\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92dXgAEBAib.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2051#main\" class=\"wp-image-2051\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92dXgAEBAib-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92dXgAEBAib-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92dXgAEBAib-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92dXgAEBAib.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWAAEqqc7.jpg\"><img loading=\"lazy\" width=\"600\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWAAEqqc7-600x800.jpg\" alt=\"\" data-id=\"2052\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWAAEqqc7.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2052#main\" class=\"wp-image-2052\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWAAEqqc7-600x800.jpg 600w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWAAEqqc7-225x300.jpg 225w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWAAEqqc7-768x1024.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWAAEqqc7.jpg 900w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWkAI_hs4.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWkAI_hs4-840x630.jpg\" alt=\"\" data-id=\"2053\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWkAI_hs4.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2053#main\" class=\"wp-image-2053\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWkAI_hs4-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWkAI_hs4-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWkAI_hs4-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92eWkAI_hs4.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92fXYAAa-8m.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92fXYAAa-8m-840x630.jpg\" alt=\"\" data-id=\"2054\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92fXYAAa-8m.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2054#main\" class=\"wp-image-2054\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92fXYAAa-8m-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92fXYAAa-8m-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92fXYAAa-8m-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246442633913827329-EUxA92fXYAAa-8m.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>Amazingly, you can still buy new printer ribbons for the Epson HX-20 38 years later from Office Depot.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-1 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246445870037512194-EUxD6LPX0AE1lXw-800x800.jpg\"><img loading=\"lazy\" width=\"800\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246445870037512194-EUxD6LPX0AE1lXw-800x800.jpg\" alt=\"\" data-id=\"2055\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2055#main\" class=\"wp-image-2055\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246445870037512194-EUxD6LPX0AE1lXw-800x800.jpg 800w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246445870037512194-EUxD6LPX0AE1lXw-300x300.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246445870037512194-EUxD6LPX0AE1lXw-150x150.jpg 150w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246445870037512194-EUxD6LPX0AE1lXw-768x768.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246445870037512194-EUxD6LPX0AE1lXw.jpg 1200w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>Created a quick RS-232 cable for the Epson HX-20 to upload programs to it. You can send BASIC program as text via serial with LOAD\u201dCOM0:\u201d and CTRL-Z to end.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-1 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246506646202957826-EUx7L35XgAAsmpm-1.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246506646202957826-EUx7L35XgAAsmpm-1-840x630.jpg\" alt=\"\" data-id=\"2057\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246506646202957826-EUx7L35XgAAsmpm-1.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2057#main\" class=\"wp-image-2057\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246506646202957826-EUx7L35XgAAsmpm-1-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246506646202957826-EUx7L35XgAAsmpm-1-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246506646202957826-EUx7L35XgAAsmpm-1-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1246506646202957826-EUx7L35XgAAsmpm-1.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><em>April 11, 2020<\/em><\/p>\n\n\n\n<p>Not quite finished with the repair on the Epson HX-20. Everything works reliably except the printer. It causes the low battery alarm when the print head starts printing (paper advance is fine). Higher voltage (6v+) helps but it should work at 5v.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-1 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1248988465229856770-EVVMYuuWoAAYtm_.jpg\"><img loading=\"lazy\" width=\"600\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1248988465229856770-EVVMYuuWoAAYtm_-600x800.jpg\" alt=\"\" data-id=\"2058\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1248988465229856770-EVVMYuuWoAAYtm_.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2058#main\" class=\"wp-image-2058\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1248988465229856770-EVVMYuuWoAAYtm_-600x800.jpg 600w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1248988465229856770-EVVMYuuWoAAYtm_-225x300.jpg 225w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1248988465229856770-EVVMYuuWoAAYtm_-768x1024.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1248988465229856770-EVVMYuuWoAAYtm_.jpg 900w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>The RS-232 cable I made works! I can load BASIC programs on the HX-20 now with LOAD\u201dCOM0:\u201d and sending a BASIC text file over USB serial (4800 baud with a 10ms char delay).<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-4 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaWoAMT6VZ.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaWoAMT6VZ-840x630.jpg\" alt=\"\" data-id=\"2059\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaWoAMT6VZ.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2059#main\" class=\"wp-image-2059\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaWoAMT6VZ-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaWoAMT6VZ-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaWoAMT6VZ-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaWoAMT6VZ.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAEhPr1.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAEhPr1-840x630.jpg\" alt=\"\" data-id=\"2060\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAEhPr1.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2060#main\" class=\"wp-image-2060\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAEhPr1-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAEhPr1-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAEhPr1-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAEhPr1.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAIFn0B.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAIFn0B-840x630.jpg\" alt=\"\" data-id=\"2061\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAIFn0B.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2061#main\" class=\"wp-image-2061\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAIFn0B-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAIFn0B-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAIFn0B-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGaXQAIFn0B.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGYXkAI6mkp.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGYXkAI6mkp-840x630.jpg\" alt=\"\" data-id=\"2062\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGYXkAI6mkp.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2062#main\" class=\"wp-image-2062\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGYXkAI6mkp-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGYXkAI6mkp-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGYXkAI6mkp-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249093122845442051-EVWrkGYXkAI6mkp.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><em>April 12, 2020<\/em><\/p>\n\n\n\n<p>To get the Epson HX-20 online, I need a terminal prg. I\u2019ve read of \u201cDumbterm\u201d, \u201cComtext\u201d, and \u201cITE+\u201d but I can\u2019t locate them. So I made minimal one in BASIC at 300 baud that fits in a Tweet. See below for source.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7uWAAosh0U.jpg\"><img loading=\"lazy\" width=\"840\" height=\"630\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7uWAAosh0U-840x630.jpg\" alt=\"\" data-id=\"2063\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7uWAAosh0U.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2063#main\" class=\"wp-image-2063\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7uWAAosh0U-840x630.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7uWAAosh0U-300x225.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7uWAAosh0U-768x576.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7uWAAosh0U.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wWsAcG2GW.jpg\"><img loading=\"lazy\" width=\"600\" height=\"800\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wWsAcG2GW-600x800.jpg\" alt=\"\" data-id=\"2064\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wWsAcG2GW.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2064#main\" class=\"wp-image-2064\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wWsAcG2GW-600x800.jpg 600w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wWsAcG2GW-225x300.jpg 225w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wWsAcG2GW-768x1024.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wWsAcG2GW.jpg 900w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wX0AAvlWv.jpg\"><img loading=\"lazy\" width=\"840\" height=\"473\" src=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wX0AAvlWv-840x473.jpg\" alt=\"\" data-id=\"2065\" data-full-url=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wX0AAvlWv.jpg\" data-link=\"https:\/\/biosrhythm.com\/?attachment_id=2065#main\" class=\"wp-image-2065\" srcset=\"https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wX0AAvlWv-840x473.jpg 840w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wX0AAvlWv-300x169.jpg 300w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wX0AAvlWv-768x432.jpg 768w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wX0AAvlWv-646x363.jpg 646w, https:\/\/biosrhythm.com\/wp-content\/uploads\/2022\/11\/1249402349879246848-EVbEz7wX0AAvlWv.jpg 1200w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<pre class=\"wp-block-preformatted\">Epson HX20 Term based on COMM20 by ERIC BALKAN\n\n0CLS:CLEAR1000:WIDTH20,252\n1?\"HX20 Term 300\"+CHR$(22)\n2T$=\"COM0:(28N1D)\"\n3OPEN\"I\",#1,T$:OPEN\"O\",#2,T$\n4WIDTH\"COM0:\",255\n5K$=INKEY$:IFK$=\"\"THEN7\n6PRINT#2,K$;\n7IFEOF(1)THEN5\n8C$=INPUT$(1,#1):?C$;:GOTO5<\/pre>\n\n\n\n<p>Video of the Epson HX-20 dialing into <a href=\"https:\/\/twitter.com\/Level29_BBS\">@Level29_BBS<\/a> at 300 baud using a terminal written in BASIC.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Video of the Epson HX-20 dialing into Level29_BBS at 300 baud using a terminal written in BASIC.\" width=\"646\" height=\"363\" src=\"https:\/\/www.youtube.com\/embed\/I4t4TOiU_EM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><em>April 13, 2020<\/em><\/p>\n\n\n\n<p>Video of the Epson HX-20 dialing into my Zork Pi server. I used <a href=\"https:\/\/twitter.com\/UseUrNoodle\">@UseUrNoodle<\/a>\u2019s Zork Telnet Server guide and used the dumb terminal version dfrotz as I don\u2019t have ANSI. Listen to that sweet keyboard!<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Video of the Epson HX-20 dialing into a Zork Pi server.\" width=\"646\" height=\"363\" src=\"https:\/\/www.youtube.com\/embed\/yX_nKyjD57M?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>(This was originally a Twitter thread from March 24, 2020) March 24, 2020 The Epson HX-20 is on the bench for some TLC like a new battery, new capacitors, cassette tape belt, and possibly more. Maybe I\u2019ll eventually dial a BBS with it.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[66,15],"tags":[72,73,71,56,52,44,51,50],"_links":{"self":[{"href":"https:\/\/biosrhythm.com\/index.php?rest_route=\/wp\/v2\/posts\/2027"}],"collection":[{"href":"https:\/\/biosrhythm.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/biosrhythm.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/biosrhythm.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/biosrhythm.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2027"}],"version-history":[{"count":2,"href":"https:\/\/biosrhythm.com\/index.php?rest_route=\/wp\/v2\/posts\/2027\/revisions"}],"predecessor-version":[{"id":2116,"href":"https:\/\/biosrhythm.com\/index.php?rest_route=\/wp\/v2\/posts\/2027\/revisions\/2116"}],"wp:attachment":[{"href":"https:\/\/biosrhythm.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/biosrhythm.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/biosrhythm.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}