{"id":3395,"date":"2013-03-08T18:33:02","date_gmt":"2013-03-09T00:33:02","guid":{"rendered":"http:\/\/w0ep.us\/OM\/?p=3395"},"modified":"2013-03-08T18:33:51","modified_gmt":"2013-03-09T00:33:51","slug":"lcd-monitor-repair","status":"publish","type":"post","link":"http:\/\/w0ep.us\/OM\/?p=3395","title":{"rendered":"LCD Monitor Repair"},"content":{"rendered":"

[Today’s run: two miles]<\/p>\n

I recently bought another GSA auction item.\u00a0 It is a 42 inch Pelco monitor.\u00a0 I imposed on my relatives to pick it up for me, and I recently had a visit and some kind folks dropped it off.<\/p>\n

We plugged it in and, sure enough, it does not work.\u00a0 The red “power” light will sometimes come on, sometimes not.<\/p>\n

I was able to get the back cover off without any trouble.\u00a0 It looks like some of the electrolytic capacitors are bad.\u00a0 I have ordered some replacements.<\/p>\n

Electrolytic capacitors are frequently used in power supplies.\u00a0 A few years ago there was something called the Capacitor Plague<\/a>.\u00a0 The story is that one or more factories in Taiwan tried to produce cheaper capacitors using a formula that they possibly had stolen from the Japanese.\u00a0 And they were less then successful.\u00a0 So the capacitors would work for awhile then fail, sometimes blowing up.<\/p>\n

I don’t think these are directly the same problem, but I can’t really say.\u00a0 All I can say is that they are bulgy and need to be replaced.<\/p>\n

In the picture I have circled the bad ones.\u00a0 You can kind of tell that their shiny tops look rounded or multi-faceted.\u00a0 The good ones have a perfectly flat top.\u00a0 The manufacturers of all such capacitors put a crease ‘X’ in the top of each one so that they can bulge instead of splitting open.\u00a0 That keeps the guts from oozing out and making a mess on the circuit board.<\/p>\n

The fix is to buy similar capacitors and use a soldering gun to take the old ones out and put in the new ones.\u00a0 The new capacitors are about 75 cents each.<\/p>\n

\"GE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

[Today’s run: two miles] I recently bought another GSA auction item.\u00a0 It is a 42 inch Pelco monitor.\u00a0 I imposed on my relatives to pick it up for me, and I recently had a visit and some kind folks dropped it off. We plugged it in and, sure enough, it does not work.\u00a0 The red […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-3395","post","type-post","status-publish","format-standard","hentry","category-ham-radio"],"_links":{"self":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/3395","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3395"}],"version-history":[{"count":2,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/3395\/revisions"}],"predecessor-version":[{"id":3399,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/3395\/revisions\/3399"}],"wp:attachment":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3395"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}