{"id":12858,"date":"2021-06-18T01:49:00","date_gmt":"2021-06-17T17:49:00","guid":{"rendered":"https:\/\/rewa.tech\/3-2\/"},"modified":"2024-05-10T15:29:11","modified_gmt":"2024-05-10T07:29:11","slug":"3-2","status":"publish","type":"post","link":"https:\/\/rewa.tech\/es\/3-2\/","title":{"rendered":"El bot\u00f3n de bajar el volumen del iPhone 7 Plus no funciona"},"content":{"rendered":"

Fen\u00f3meno del mal funcionamiento<\/span><\/b><\/p>\n

<\/span><\/b><\/p>\n

Podemos subir y bajar el volumen con el bot\u00f3n de volumen.<\/span><\/p>\n

En este caso, el bot\u00f3n de bajar volumen del iPhone 7 Plus recibido no funciona, pero el bot\u00f3n de subir volumen funciona normalmente.<\/span><\/p>\n

<\/span><\/p>\n

\"El<\/span><\/p>\n

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Soluci\u00f3n de problemas<\/span><\/b><\/p>\n

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\n

De acuerdo con el fen\u00f3meno de la aver\u00eda, podemos concluir que el problema debe provenir del circuito relevante del bot\u00f3n de volumen. Primero, compruebe el valor del diodo en el conector del bot\u00f3n de volumen J4504; los valores son normales. <\/span><\/p>\n

<\/span><\/p>\n

\"El<\/span><\/p>\n

<\/span><\/p>\n

T<\/span><\/span>Cuando continuamos midiendo el voltaje en el pin 14 de J4504, el valor era de alrededor de 0.8V, lo cual era anormal; el valor normal deber\u00eda ser de alrededor de 1.8V como comparamos con una placa madre normal. <\/span><\/p>\n

El problema era de la l\u00ednea el\u00e9ctrica <\/span>conectado con el pin 14 de J4504.<\/span><\/p>\n

<\/span><\/p>\n

\"\"<\/span><\/p>\n

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\"\"\"\"<\/span><\/p>\n

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Despu\u00e9s de revisar <\/span><\/span>los esquem\u00e1ticos, encontramos que la energ\u00eda ven\u00eda del PMU U1801.<\/span><\/p>\n

<\/span><\/p>\n

Podemos tomar prestado un voltaje de alrededor de 1.8V de otros componentes. Aqu\u00ed podemos puentear un cable desde el pin 1 de C2414 hasta el pin 14 del conector J4504.<\/span><\/p>\n

\"\" <\/span><\/p>\n

<\/span><\/p>\n

Prueba despu\u00e9s de saltar cable<\/span><\/span>, el bot\u00f3n de bajar volumen puede funcionar, el problema est\u00e1 resuelto.<\/span><\/p>\n

<\/span><\/p>\n

\"\"<\/span><\/p>\n

<\/span><\/p>\n

 <\/span>Curso de reparaci\u00f3n de la placa base del iPhone 7<\/span><\/u><\/b><\/a><\/p>\n

<\/p>\n

<\/span><\/p><\/p>","protected":false},"excerpt":{"rendered":"

Malfunction Phenomenon We can turn the volume up and down with the volume button. In this case, the received iPhone 7 Plus volume down button not working, but the volume up button works normally. Trouble Shooting According to the malfunction phenomenon, we can conclude that the problem should from the volume button relevant circuit. First, […]<\/p>\n","protected":false},"author":10,"featured_media":12859,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"wpai_generated_summary":"","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[780],"tags":[],"class_list":["post-12858","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iphone-repair-cases"],"_links":{"self":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/posts\/12858","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/comments?post=12858"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/posts\/12858\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/media\/12859"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/media?parent=12858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/categories?post=12858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/tags?post=12858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}