iPad mini5 不開機 白蘋果 維修心得 - iOS
By Elma
at 2022-01-10T15:43
at 2022-01-10T15:43
Table of Contents
哈囉~各位早安 呼啦~ 今天來分享一例 iPad mini 5 不開機之維修心得
機主敘述機況為,插充電線後會反覆出現白蘋果,如果在白蘋果出現的時候拔掉充電線會
直接黑畫面沒反應,有送去A13檢測,現場嘗試刷機,但是失敗,之後檢測結果為,整合
式電源啟動器故障,所以就有了這次的維修心得了
維修開始~~~~~~~~~~~~~~~~~~~~~~~~~
外觀檢測,機子本身滿乾淨的,來的時候也的確是上述狀況,為了排除是電量太低導致的
,有嘗試充了一下電,但電流不像是有充電的電流,大概在600ma到1A左右後重啟,裝況
依舊,那就拆機吧~~~
https://i.imgur.com/iJFNFeU.jpg
拆機過程省略~~~
拆機後首先量測電池電壓,顯示0V
https://i.imgur.com/LjFKA3p.jpg
正當我以為唉唷~可能是電池壞了哦~~就嘗試使用電源供應器開機
https://i.imgur.com/dG1vm4l.jpg
沒錯~~是大家都知道的,午安大電流!!!
經過量測後發現主機板電池接口正電的地方接地了,不正常,表示有東西短路了
https://i.imgur.com/4ZOvlch.jpg
透過電路圖排查後,使用肉眼發現了疑似故障的電容(大家要好好照顧眼睛啊!不要關燈
了還在滑手機!)
https://i.imgur.com/5lQWoyQ.jpg
大家看的出來是哪一顆電容損壞嗎,看不出來沒關係,我們薰上薄薄一層松香後來看看會
不會融化
https://i.imgur.com/TqGKzOx.jpg
沒錯,兇手就是它!
將電容排除後,經量測,原本短路的線路已經恢復阻值了,之後就嘗試用原本的電池,插
電~開機~螢幕輕鬆點亮
https://i.imgur.com/vxvsV7v.jpg
可以看到這張圖的右上角,電量是98%,這可不是我充電充起來的,還記得一開始量測電
池電壓的時候是0V嗎,沒錯,電池保護板偵測到短路後自動保護起來,避免危險,所以才
會量測的時候顯示0V,但開機後顯示98%
因為此線路只有這一顆電容,所以我們需要把它補回去,但是這電容規格
比較特別,我這裡沒有,所以就在有多顆電容保護的線路中拆了一顆規格相同的電容補上
https://i.imgur.com/3N5Ddvx.jpg
測試正常,打完收工~~~~
維修結束~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
感謝各位觀看,咱們下次見囉~~~~~
--
--
機主敘述機況為,插充電線後會反覆出現白蘋果,如果在白蘋果出現的時候拔掉充電線會
直接黑畫面沒反應,有送去A13檢測,現場嘗試刷機,但是失敗,之後檢測結果為,整合
式電源啟動器故障,所以就有了這次的維修心得了
維修開始~~~~~~~~~~~~~~~~~~~~~~~~~
外觀檢測,機子本身滿乾淨的,來的時候也的確是上述狀況,為了排除是電量太低導致的
,有嘗試充了一下電,但電流不像是有充電的電流,大概在600ma到1A左右後重啟,裝況
依舊,那就拆機吧~~~
https://i.imgur.com/iJFNFeU.jpg
拆機過程省略~~~
拆機後首先量測電池電壓,顯示0V
https://i.imgur.com/LjFKA3p.jpg
正當我以為唉唷~可能是電池壞了哦~~就嘗試使用電源供應器開機
https://i.imgur.com/dG1vm4l.jpg
沒錯~~是大家都知道的,午安大電流!!!
經過量測後發現主機板電池接口正電的地方接地了,不正常,表示有東西短路了
https://i.imgur.com/4ZOvlch.jpg
透過電路圖排查後,使用肉眼發現了疑似故障的電容(大家要好好照顧眼睛啊!不要關燈
了還在滑手機!)
https://i.imgur.com/5lQWoyQ.jpg
大家看的出來是哪一顆電容損壞嗎,看不出來沒關係,我們薰上薄薄一層松香後來看看會
不會融化
https://i.imgur.com/TqGKzOx.jpg
沒錯,兇手就是它!
將電容排除後,經量測,原本短路的線路已經恢復阻值了,之後就嘗試用原本的電池,插
電~開機~螢幕輕鬆點亮
https://i.imgur.com/vxvsV7v.jpg
可以看到這張圖的右上角,電量是98%,這可不是我充電充起來的,還記得一開始量測電
池電壓的時候是0V嗎,沒錯,電池保護板偵測到短路後自動保護起來,避免危險,所以才
會量測的時候顯示0V,但開機後顯示98%
因為此線路只有這一顆電容,所以我們需要把它補回去,但是這電容規格
比較特別,我這裡沒有,所以就在有多顆電容保護的線路中拆了一顆規格相同的電容補上
https://i.imgur.com/3N5Ddvx.jpg
測試正常,打完收工~~~~
維修結束~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
感謝各位觀看,咱們下次見囉~~~~~
--
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