Got back from a trip to the US today. And brought with me some “Goo Gone” (which is apparently very good for removing mylars – according to several articles on the internet) an imperial sized “stumpy” ratchet set (for getting to those hard-to-get places in the pinball machine), a cutter bit for my “Dremel” equivalent and some Fairchild Semiconductor QVE11233 Optos.<\/p>\n
I couldn’t wait to test my theory on the opto switch board and so changed the Thing-Up opto. This wasn’t as easy as it could have been, as two of the pins on the opto are soldered on the backside to a very small solder pad. These pads connect through the board to the upper side of the board where connections are made to other parts on the board. When de-soldering pins from such a small pad great care needs to be taken not to overheat the pad itself otherwise it’s easy to “burn off” the pad. I did this on one of the pads which then left me with just a small section of pad to solder the new opto to. I managed it though.<\/p>\n
Having soldered the opto in place I connected up the board and tested it……<\/p>\n
No more switching of the Thing Up opto when the left outlane switch was activated! A success!!<\/p>\n
Time to sit back and decide how to proceed further with my renovation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Got back from a trip to the US today. And brought with me some “Goo Gone” (which is apparently very good for removing mylars – according to several articles on the internet) an imperial sized “stumpy” ratchet set (for getting to those hard-to-get places in the pinball machine), a cutter bit for my “Dremel” equivalent […]<\/p>\n","protected":false},"author":70,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-151","post","type-post","status-publish","format-standard","hentry","category-taf"],"_links":{"self":[{"href":"https:\/\/taf.gozzled.com\/index.php?rest_route=\/wp\/v2\/posts\/151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/taf.gozzled.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/taf.gozzled.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/taf.gozzled.com\/index.php?rest_route=\/wp\/v2\/users\/70"}],"replies":[{"embeddable":true,"href":"https:\/\/taf.gozzled.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=151"}],"version-history":[{"count":5,"href":"https:\/\/taf.gozzled.com\/index.php?rest_route=\/wp\/v2\/posts\/151\/revisions"}],"predecessor-version":[{"id":1751,"href":"https:\/\/taf.gozzled.com\/index.php?rest_route=\/wp\/v2\/posts\/151\/revisions\/1751"}],"wp:attachment":[{"href":"https:\/\/taf.gozzled.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/taf.gozzled.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/taf.gozzled.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}