{"id":411,"date":"2016-07-18T13:42:54","date_gmt":"2016-07-18T17:42:54","guid":{"rendered":"http:\/\/www.scottfromcanada.com\/wordpress\/?p=411"},"modified":"2016-07-18T13:48:41","modified_gmt":"2016-07-18T17:48:41","slug":"matrix-6-fixed","status":"publish","type":"post","link":"http:\/\/www.scottfromcanada.com\/?p=411","title":{"rendered":"Matrix 6 Fixed!"},"content":{"rendered":"<p>Well, after a little more investigation I found the real problem with the Matrix 6. In fact, I should have found it right away but I guess I rushed past this. After checking the voltages again I noticed that the +12 volt regulator was actually outputting +18 volts. So with a little more help from my tech friend Joan, I got a replacement and new capacitors and fixed it. Now I have a perfectly working Matrix 6!<\/p>\n<p>I also did some work on the Prophet 600. I replaced the sample and hold circuit capacitors and after all that work it turned out to be something else! That&#8217;s ok though because it should be done in old synths anyway. In fact, I&#8217;ll replace all the other capacitors eventually too. It turned out to be a lot more work on this synth though because the components are solders on both sides of the circuit board. That&#8217;s a pain! I could really use a teeny tiny soldering iron when working with such small components too! But another good learning experience.<\/p>\n<p><a data-flickr-embed=\"true\"  href=\"https:\/\/www.flickr.com\/photos\/scotteh\/28289585542\/in\/photostream\" title=\"Prophet 600 S&amp;H Capacitors\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/c7.staticflickr.com\/9\/8550\/28289585542_514bc72650.jpg\" width=\"500\" height=\"375\" alt=\"Prophet 600 S&amp;H Capacitors\"><\/a><script async src=\"\/\/embedr.flickr.com\/assets\/client-code.js\" charset=\"utf-8\"><\/script><\/p>\n<p>Since the problem seems to go away after a warm up I suspected it was the oscillator chip so I got one out of my OB-8. Sure enough when I replaced voice one, oscillator 2 the problem went away. It still takes 30-45 minutes for the instrument to become stable so it&#8217;s really not a huge issue but there was definitely a difference so I will get a replacement soon. <\/p>\n<p>Luckily they have just made up a new batch of the CEM 3340 oscillator chips so I will order a bunch so that I have spares for the P600 and the OB-8.<\/p>\n<p><a data-flickr-embed=\"true\"  href=\"https:\/\/www.flickr.com\/photos\/scotteh\/28111142710\/in\/photostream\/\" title=\"Prophet 600 Voices\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/c7.staticflickr.com\/9\/8695\/28111142710_9f5f8c24e1.jpg\" width=\"375\" height=\"500\" alt=\"Prophet 600 Voices\"><\/a><script async src=\"\/\/embedr.flickr.com\/assets\/client-code.js\" charset=\"utf-8\"><\/script><\/p>\n<p>I still have to order a new battery for the P600 as well, but I think I will get a battery holder for it rather than having to solder it in. I&#8217;ll do that once I&#8217;m really to order parts for the CS-40m, which should be soon.<\/p>\n<p>There may be another project soon as well. Soon we will know!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Well, after a little more investigation I found the real problem with the Matrix 6. In fact, I should have found it right away but I guess I rushed past this. After checking the voltages again I noticed that the +12 volt regulator was actually outputting +18 volts. So with a little more help from &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-411","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"http:\/\/www.scottfromcanada.com\/index.php?rest_route=\/wp\/v2\/posts\/411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.scottfromcanada.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.scottfromcanada.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.scottfromcanada.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.scottfromcanada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=411"}],"version-history":[{"count":3,"href":"http:\/\/www.scottfromcanada.com\/index.php?rest_route=\/wp\/v2\/posts\/411\/revisions"}],"predecessor-version":[{"id":414,"href":"http:\/\/www.scottfromcanada.com\/index.php?rest_route=\/wp\/v2\/posts\/411\/revisions\/414"}],"wp:attachment":[{"href":"http:\/\/www.scottfromcanada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.scottfromcanada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=411"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.scottfromcanada.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}