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現在のバージョン作成者: oldturkey03 (投票の詳細) ,

タイトル:

MacBook 12" 2015(820-00045) no display, no chime, no image

テキスト:

Hello, @arbaman @reecee @refectio and other experts!
Recently I received a dead MacBook 2015 12”. When I connect charger, no chime no image, no backlight.
# I tried measure every power line with multimeter, but I found missing voltage only on PP5V_S0SW_LCD, PP5V1_S4SW and PP1V05_S4SW lines
# I use my ThermoCam and compared the thermo image with good working board but images look the same. So I think there is problem only with image and backlight (maybe)
# I disconnect everything and connected a known good display but does not help
# I preventatively replaced U4700 but no change
+
On the internet I found, than a lot of people have same issue with this model. Is here any way how to fix?
Thanks :)[br]
-
board number is 820-00045[br]

デバイス:

Retina MacBook 2015

ステータス:

open

アンサーフォーラムの回答が承認:

+555492

編集者: Dan ,

タイトル:

MacBook 12" 2015(820-00045) no display, no chime, no image

テキスト:

-Hello, @arbaman @reecee @refectio and other expert! [br]
+Hello, @arbaman @reecee @refectio and other experts!
+
+Recently I received a dead MacBook 2015 12”. When I connect charger, no chime no image, no backlight.
+
+# I tried measure every power line with multimeter, but I found missing voltage only on PP5V_S0SW_LCD, PP5V1_S4SW and PP1V05_S4SW lines
+# I use my ThermoCam and compared the thermo image with good working board but images look the same. So I think there is problem only with image and backlight (maybe)
+# I disconnect everything and connected a known good display but does not help
+# I preventatively replaced U4700 but no change
+On the internet I found, than a lot of people have same issue with this model. Is here any way how to fix?
+
+Thanks :)[br]
-Recently i received dead MacBook 2015 12”. When i connect charger, no chime no image, nobacklight. [br]
-
-
-1 - i tried measure every power line with multimeter, but i found missing voltage olny on PP5V_S0SW_LCD, PP5V1_S4SW and PP1V05_S4SW lines[br]
-
-
-2 - i use my thermocam and compared thermoimage with good working board but images are same. So i think there is problem only with image and backlight (maybe)[br]
-
-
-3 - i disconnect everythink and connect only know good display but does not help[br]
-
-
-4 - i preventative replaced U4700 but no change[br]
-
-
-[br]
-
-
-On the internet i found, than a lot of people have same issue with this mode. Is here any way how to fix? Thanks :)[br]
board number is 820-00045[br]

デバイス:

Retina MacBook 2015

ステータス:

open

編集者: Tomas ,

タイトル:

-MacBook 12" 2015 no display, no chime, no image
+MacBook 12" 2015(820-00045) no display, no chime, no image

テキスト:

Hello, @arbaman @reecee @refectio and other expert! [br]
+
Recently i received dead MacBook 2015 12”. When i connect charger, no chime no image, nobacklight. [br]
+
1 - i tried measure every power line with multimeter, but i found missing voltage olny on PP5V_S0SW_LCD, PP5V1_S4SW and PP1V05_S4SW lines[br]
+
2 - i use my thermocam and compared thermoimage with good working board but images are same. So i think there is problem only with image and backlight (maybe)[br]
+
3 - i disconnect everythink and connect only know good display but does not help[br]
+
4 - i preventative replaced U4700 but no change[br]
+
[br]
+
On the internet i found, than a lot of people have same issue with this mode. Is here any way how to fix? Thanks :)[br]
+board number is 820-00045[br]

デバイス:

Retina MacBook 2015

ステータス:

open

オリジナル投稿者: Tomas ,

タイトル:

MacBook 12" 2015 no display, no chime, no image

テキスト:

Hello, @arbaman @reecee  @refectio  and other expert! [br]

Recently i received dead MacBook 2015 12”. When i connect charger, no chime no image, nobacklight. [br]

1 - i tried measure every power line with multimeter, but i found missing voltage olny on  PP5V_S0SW_LCD, PP5V1_S4SW and PP1V05_S4SW lines[br]

2 - i use my thermocam and compared thermoimage with good working board but images are same. So i think there is problem only with image and backlight (maybe)[br]

3 - i disconnect everythink and connect only know good display but does not help[br]

4 - i preventative replaced U4700 but no change[br]

[br]

On the internet i found, than a lot of people have same issue with this mode. Is here any way how to fix? Thanks :)[br]

デバイス:

Retina MacBook 2015

ステータス:

open