{"id":358,"date":"2023-10-29T22:42:58","date_gmt":"2023-10-29T22:42:58","guid":{"rendered":"https:\/\/lixustech.com\/?p=358"},"modified":"2023-10-29T22:43:00","modified_gmt":"2023-10-29T22:43:00","slug":"persiguiendo-tres-voltios","status":"publish","type":"post","link":"https:\/\/lixustech.com\/?p=358","title":{"rendered":"Persiguiendo tres voltios"},"content":{"rendered":"\n

Hace no mucho habl\u00e1bamos de todas esas marcas de teles diferentes que al abrirlas todas llevan electr\u00f3nica del mismo fabricante, Vestel. Hoy toca una averiada en su m\u00f3dulo principal, no enciende, tiene led de standby pero no hace nada al pulsar encendido.<\/p>\n\n\n\n

Estas placas tienen la ventaja de estar muy documentadas, y de ser relativamente simples. En este caso la placa s\u00f3lo necesita 12V de la fuente para activarse. Luegos dos circuitos reductores generan las tensiones de standby, 5VSTBY y 3V3STBY. Se alimenta led y bot\u00f3n de encendido y al pulsar deber\u00eda generarse 3V3VCC y resto de tensiones. El circuito responsable de ello parece estar correcto pero no llegan por ning\u00fan lado los 5VSTBY necesarios a la entrada que sabemos que s\u00ed est\u00e1n ya que el led alumbra. \u00bfD\u00f3nde se quedan?. Pues un peque\u00f1\u00edsimo fusible con la mala suerte de que estar bastante apartado. <\/p>\n\n\n\n

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dav<\/figcaption><\/figure>\n\n\n\n
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dav<\/figcaption><\/figure>\n<\/figure>\n\n\n\n

No hay que volverse locos, ni presuponer nada, ni tocarlo todo. Medir y seguir las se\u00f1ales paso a paso, con paciencia….que al final no es m\u00e1s que un fusible.<\/p>\n","protected":false},"excerpt":{"rendered":"

Buscando la tensi\u00f3n faltante pasito a pasito.<\/p>\n","protected":false},"author":1,"featured_media":359,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[17],"tags":[43,42,19,41],"class_list":["post-358","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tv-y-sonido","tag-3v3vcc","tag-mainboard","tag-tv","tag-vestel"],"_links":{"self":[{"href":"https:\/\/lixustech.com\/index.php?rest_route=\/wp\/v2\/posts\/358","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lixustech.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lixustech.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lixustech.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lixustech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=358"}],"version-history":[{"count":1,"href":"https:\/\/lixustech.com\/index.php?rest_route=\/wp\/v2\/posts\/358\/revisions"}],"predecessor-version":[{"id":361,"href":"https:\/\/lixustech.com\/index.php?rest_route=\/wp\/v2\/posts\/358\/revisions\/361"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lixustech.com\/index.php?rest_route=\/wp\/v2\/media\/359"}],"wp:attachment":[{"href":"https:\/\/lixustech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=358"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lixustech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=358"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lixustech.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=358"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}