{"id":6845,"date":"2019-02-10T09:17:32","date_gmt":"2019-02-10T15:17:32","guid":{"rendered":"http:\/\/w0ep.us\/OM\/?p=6845"},"modified":"2019-02-10T13:51:46","modified_gmt":"2019-02-10T19:51:46","slug":"1995-ford-psom-repair","status":"publish","type":"post","link":"http:\/\/w0ep.us\/OM\/?p=6845","title":{"rendered":"1995 Ford PSOM Repair"},"content":{"rendered":"\n<p>[Wednesday: 3.4 miles; Saturday: ~6 miles including Riverwalk in Columbus]<\/p>\n\n\n\n<p>I had mentioned a couple of weeks ago that we acquired a new full-size van from the university surplus over in Tuscaloosa.  It had to be jump started when I picked it up.  And the odometer was dead which also resulted in poor transmission shifting.  You may recall that I swapped in the instrument cluster from my &#8217;93 F-150 so we could take the van to the Jackson, MS hamfest.  That worked.<\/p>\n\n\n\n<p>I then found a couple of youtube videos about repairing the odometer which is called the PSOM.  It is a circuit board which mounts on the back of the speedometer.  The speedometer itself is a little motor thing which moves the pointer, receiving a signal from the PSOM circuit board; no more &#8220;speedometer cable&#8221; like in the old days.<\/p>\n\n\n\n<p>The youtube videos talked about replacing some power supply bits on the circuit board.  One of the videos even had a list of part numbers to order from Mouser Electronics.  I did that and I got the parts swapped in.  But the thing still didn&#8217;t work  (this is the PSOM that came with the van).<\/p>\n\n\n\n<p>So I ordered a used one off of Ebay for 59.95 (or some such).  It arrived this week.  I was able to get some information about how the board is connected and that helped me figure out how to power it up on the bench.  That way I could run it in the comfort of my chair instead of trying to poke at it while sitting in the car with my arms wrapped around the steering wheel.<\/p>\n\n\n\n<p>I had the working one and the broken one. I compared between the two with my multi-meter and discovered a connection was missing on the broken one.  I soldered in a small jumper wire, and now the van PSOM works again!    Yesterday I installed the van&#8217;s instrument cluster back in the van and the truck&#8217;s cluster back into the truck.<\/p>\n\n\n\n<p>I don&#8217;t know what I&#8217;m going to do with the spare I bought off of Ebay.<\/p>\n\n\n\n<p>Also, <a href=\"https:\/\/youtu.be\/yhPV1GIp9Xg\">I created my own youtube video<\/a> to add to the general knowledge, which might help someone fix theirs.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2019\/02\/IMG_20190208_071207500-1024x768.jpg\" alt=\"\" class=\"wp-image-6846\" srcset=\"http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2019\/02\/IMG_20190208_071207500-1024x768.jpg 1024w, http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2019\/02\/IMG_20190208_071207500-700x525.jpg 700w, http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2019\/02\/IMG_20190208_071207500-768x576.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Under 68,000 miles!<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2019\/02\/IMG_20190208_072739030-768x1024.jpg\" alt=\"\" class=\"wp-image-6847\" srcset=\"http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2019\/02\/IMG_20190208_072739030-768x1024.jpg 768w, http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2019\/02\/IMG_20190208_072739030-700x933.jpg 700w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><figcaption>The location of the jumper.<br><br><\/figcaption><\/figure>\n\n\n\n<p><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>[Wednesday: 3.4 miles; Saturday: ~6 miles including Riverwalk in Columbus] I had mentioned a couple of weeks ago that we acquired a new full-size van from the university surplus over in Tuscaloosa. It had to be jump started when I picked it up. And the odometer was dead which also resulted in poor transmission shifting. [&hellip;]<\/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-6845","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\/6845","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=6845"}],"version-history":[{"count":2,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/6845\/revisions"}],"predecessor-version":[{"id":6850,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/6845\/revisions\/6850"}],"wp:attachment":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6845"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}