{"id":348,"date":"2025-04-03T21:06:40","date_gmt":"2025-04-04T04:06:40","guid":{"rendered":"http:\/\/elliottjohnson.net\/blog\/?p=348"},"modified":"2025-04-03T21:11:04","modified_gmt":"2025-04-04T04:11:04","slug":"kassutronics-quantizer-repair","status":"publish","type":"post","link":"http:\/\/elliottjohnson.net\/blog\/kassutronics-quantizer-repair\/","title":{"rendered":"Kassutronics Quantizer Repair"},"content":{"rendered":"\n<p>The <a href=\"https:\/\/kassu2000.blogspot.com\/2019\/10\/quantizer.html?m=1\" data-type=\"link\" data-id=\"https:\/\/kassu2000.blogspot.com\/2019\/10\/quantizer.html?m=1\">Kassutronics Pitch Quantizer<\/a> was the first true SDIY project I undertook. I&#8217;ve soldered lots of kits going back in the MOTM days, but this involved sourcing all of the parts and assembling the module. There was a major hurdle to make sure that all of the components were correct and would fit annnd I had very limited SMD experence.<\/p>\n\n\n\n<p>Functionally it worked the first time I powered it on, but I did have a few bad connections on the shift registers used for illuminating the LED buttons. Also there was a later board <a href=\"https:\/\/modwiggler.com\/forum\/viewtopic.php?p=4026280#p4026280\">modification<\/a> required to make sure 12v didn&#8217;t leak out when plugging in the 2nd gate output.<\/p>\n\n\n\n<p>Disassembling the panel and reflowing the SMD chip packages did the trick to get everything illumimating<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014485.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"461\" height=\"1024\" src=\"http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014485-461x1024.jpg\" alt=\"\" class=\"wp-image-349\" srcset=\"http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014485-461x1024.jpg 461w, http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014485-135x300.jpg 135w, http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014485-768x1706.jpg 768w, http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014485-691x1536.jpg 691w, http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014485-922x2048.jpg 922w, http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014485.jpg 1089w\" sizes=\"auto, (max-width: 461px) 100vw, 461px\" \/><\/a><\/figure>\n\n\n\n<p>A quick slice of a trace with a razor blade and soldering in a &#8220;bodge resistor&#8221; and the quantizer was back to two channels of awesomeness&#8230; now I&#8217;m seriously thinking of upping the resistance on those eye bleedingly bright blue LEDs!!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014486.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"428\" height=\"1024\" src=\"http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014486-428x1024.jpg\" alt=\"\" class=\"wp-image-350\" srcset=\"http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014486-428x1024.jpg 428w, http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014486-125x300.jpg 125w, http:\/\/elliottjohnson.net\/blog\/wp-content\/uploads\/2025\/04\/1000014486.jpg 600w\" sizes=\"auto, (max-width: 428px) 100vw, 428px\" \/><\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The Kassutronics Pitch Quantizer was the first true SDIY project I undertook. I&#8217;ve soldered lots of kits going back in the MOTM days, but this involved sourcing all of the parts and assembling the module. There was a major hurdle &hellip; <a href=\"http:\/\/elliottjohnson.net\/blog\/kassutronics-quantizer-repair\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"footnotes":""},"categories":[11],"tags":[],"class_list":["post-348","post","type-post","status-publish","format-standard","hentry","category-personal"],"_links":{"self":[{"href":"http:\/\/elliottjohnson.net\/blog\/wp-json\/wp\/v2\/posts\/348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/elliottjohnson.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/elliottjohnson.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/elliottjohnson.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/elliottjohnson.net\/blog\/wp-json\/wp\/v2\/comments?post=348"}],"version-history":[{"count":4,"href":"http:\/\/elliottjohnson.net\/blog\/wp-json\/wp\/v2\/posts\/348\/revisions"}],"predecessor-version":[{"id":358,"href":"http:\/\/elliottjohnson.net\/blog\/wp-json\/wp\/v2\/posts\/348\/revisions\/358"}],"wp:attachment":[{"href":"http:\/\/elliottjohnson.net\/blog\/wp-json\/wp\/v2\/media?parent=348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/elliottjohnson.net\/blog\/wp-json\/wp\/v2\/categories?post=348"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/elliottjohnson.net\/blog\/wp-json\/wp\/v2\/tags?post=348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}