{"id":4300,"date":"2018-09-02T15:23:02","date_gmt":"2018-09-02T19:23:02","guid":{"rendered":"http:\/\/mikestrawbridge.com\/blog\/?p=4300"},"modified":"2019-06-30T20:00:34","modified_gmt":"2019-07-01T00:00:34","slug":"xj-led-dash-light-upgrade","status":"publish","type":"post","link":"http:\/\/mikestrawbridge.com\/blog\/2018\/09\/xj-led-dash-light-upgrade\/","title":{"rendered":"XJ LED dash light upgrade"},"content":{"rendered":"<p>Adding LED dash lights to the XJ<\/p>\n<p>I recently swapped in a used cluster to replace mine where the odometer had stopped working. The bulbs in it were pretty dim. I decided to try using LED bulbs.<\/p>\n<p><!--more-->i bought these from Amazon:<\/p>\n<p><iframe style=\"width: 120px; height: 240px;\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=mealswithames-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B00KVC78RU&amp;asins=B00KVC78RU&amp;linkId=feff06ca666144bd2fae85a8c6bb6996&amp;show_border=true&amp;link_opens_in_new_window=true\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>The listing gave me a a warning that these would not fit my 1991 Cherokee. But since the measurements were correct I gave it a chance. They turned out to be the right bulbs.<\/p>\n<p><a href=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145048566.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-4305\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145048566-300x169.jpg\" alt=\"XJ cluster LED\" width=\"300\" height=\"169\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145048566-300x169.jpg 300w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145048566-768x432.jpg 768w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145048566-1024x576.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>The trouble with the LED bulbs is that they are polarized while the originals don&#8217;t care how they are installed. Also, the LED bulbs were not marked for + and &#8211; that I saw. So I rigged up a test set up using my 12V jump box and some alligator clips.<\/p>\n<p><a href=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145125682.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-4304\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145125682-300x169.jpg\" alt=\"XJ cluster LED\" width=\"300\" height=\"169\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145125682-300x169.jpg 300w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145125682-768x432.jpg 768w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145125682-1024x576.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Now you can trace each of the copper traces on the board and see what is positive and negative, but I decided to just use trial and error. That technique got me through engineering school it can get me through five LED bulbs.<br \/>\nI hooked up a lead to the ground that is handily marked on the board. I touched the positive lead to the solder joint that powers the lights to test each one. See the photo:<\/p>\n<p><a href=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145153683.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-4303\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145153683-300x169.jpg\" alt=\"XJ cluster LED\" width=\"300\" height=\"169\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145153683-300x169.jpg 300w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145153683-768x432.jpg 768w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145153683-1024x576.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>To make sure the bulb lit up, I removed the one next to it and peeked inside:<\/p>\n<p><a href=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145230710.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-4302\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145230710-300x169.jpg\" alt=\"XJ cluster LED\" width=\"300\" height=\"169\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145230710-300x169.jpg 300w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145230710-768x432.jpg 768w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145230710-1024x576.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>If it did not light up, I just turned it around. It did not take long to get all five in the right way around.<\/p>\n<p>Once the cluster was back in the Jeep I am happy with the way it looks. I also took some time to clean it all up while it was out.<\/p>\n<figure id=\"attachment_4301\" aria-describedby=\"caption-attachment-4301\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145757659_HDR.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-4301\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145757659_HDR-300x169.jpg\" alt=\"XJ cluster LED\" width=\"300\" height=\"169\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145757659_HDR-300x169.jpg 300w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145757659_HDR-768x432.jpg 768w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2018\/09\/IMG_20180902_145757659_HDR-1024x576.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-4301\" class=\"wp-caption-text\">XJ cluster<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Adding LED dash lights to the XJ I recently swapped in a used cluster to replace mine where the odometer had stopped working. The bulbs in it were pretty dim. I decided to try using LED bulbs.<\/p>\n","protected":false},"author":1,"featured_media":4301,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[210,6,231,62],"tags":[541],"_links":{"self":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts\/4300"}],"collection":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/comments?post=4300"}],"version-history":[{"count":5,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts\/4300\/revisions"}],"predecessor-version":[{"id":5056,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts\/4300\/revisions\/5056"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/media\/4301"}],"wp:attachment":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/media?parent=4300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/categories?post=4300"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/tags?post=4300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}