{"id":12952,"date":"2021-10-19T12:00:00","date_gmt":"2021-10-19T04:00:00","guid":{"rendered":"https:\/\/rewa.tech\/iphone-xr-half-dim-and-half-bright\/"},"modified":"2024-05-10T15:25:06","modified_gmt":"2024-05-10T07:25:06","slug":"iphone-xr-demi-teinte-et-demi-claire","status":"publish","type":"post","link":"https:\/\/rewa.tech\/fr\/iphone-xr-half-dim-and-half-bright\/","title":{"rendered":"Probl\u00e8me de r\u00e9tro\u00e9clairage de l'iPhone XR - demi-teinte et demi-brillance"},"content":{"rendered":"

Ph\u00e9nom\u00e8ne de dysfonctionnement<\/o_p><\/span><\/b><\/p>\n

\n

iPhone XR \u00e0 moiti\u00e9 sombre et \u00e0 moiti\u00e9 lumineux.<\/o_p><\/span><\/p>\n

 <\/o_p><\/span><\/b><\/p>\n

D\u00e9pannage<\/o_p><\/span><\/b><\/p>\n

Apr\u00e8s avoir remplac\u00e9 un autre \u00e9cran, le dysfonctionnement est rest\u00e9 le m\u00eame. Nous avons alors ouvert les sch\u00e9mas pour v\u00e9rifier le circuit de r\u00e9tro\u00e9clairage. Nous avons constat\u00e9 que le circuit de r\u00e9tro\u00e9clairage \u00e9tait similaire \u00e0 celui des mod\u00e8les de la s\u00e9rie P de l'iPhone, comme le 6 Plus ou le 7 Plus. Il y a deux jeux de puces de r\u00e9tro\u00e9clairage, U5650 et U5660. Si l'un des circuits est cass\u00e9, la moiti\u00e9 de la LED de r\u00e9tro\u00e9clairage ne fonctionnera pas.<\/o_p><\/span><\/p>\n

L'\u00e9cran peut alors \u00eatre \u00e0 moiti\u00e9 sombre et \u00e0 moiti\u00e9 lumineux.<\/o_p><\/span><\/p>\n

 \"\"<\/o_p><\/span><\/p>\n

 \"\"<\/o_p><\/span><\/p>\n

 <\/o_p><\/span><\/p>\n

 \"\"<\/o_p><\/span><\/p>\n

 <\/o_p><\/span><\/p>\n

Nous avons assembl\u00e9 l'\u00e9cran et allum\u00e9 le t\u00e9l\u00e9phone, puis nous avons v\u00e9rifi\u00e9 la tension sur C5652 et C5662. La valeur normale doit \u00eatre sup\u00e9rieure \u00e0 10V, si la valeur est juste autour de 4V, cela signifie que le circuit concern\u00e9 a \u00e9t\u00e9 endommag\u00e9.<\/o_p><\/span><\/p>\n

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

 \"\"<\/o_p><\/span><\/p>\n

 <\/o_p><\/span><\/p>\n

Apr\u00e8s v\u00e9rification, nous avons constat\u00e9 que la tension sur C5652 \u00e9tait anormale, puis nous avons essay\u00e9 de remplacer le circuit int\u00e9gr\u00e9 de r\u00e9tro\u00e9clairage U5660 et nous avons test\u00e9 \u00e0 nouveau, la fonction de r\u00e9tro\u00e9clairage est revenue \u00e0 la normale.<\/o_p><\/span><\/p>\n

Aller \u00e0 Cours de r\u00e9paration de la carte m\u00e8re de l'iPhone<\/a> pour en savoir plus.<\/p>","protected":false},"excerpt":{"rendered":"

Malfunction Phenomenon iPhone XR Half Dim and Half Bright.   Trouble Shooting After we replaced another screen, the malfunction was still the same. Then we opened the schematics to check the backlight circuit. We could see the backlight circuit was similar to the iPhone P series models like 6 Plus or 7 Plus. There were […]<\/p>\n","protected":false},"author":10,"featured_media":12953,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[780],"tags":[],"class_list":["post-12952","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iphone-repair-cases"],"_links":{"self":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts\/12952","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/comments?post=12952"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/posts\/12952\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/media\/12953"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/media?parent=12952"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/categories?post=12952"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/fr\/wp-json\/wp\/v2\/tags?post=12952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}