MacBook 12" 2015(820-00045) no display, no chime, no image
crwdns2934249:0crwdne2934249:0:
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?
MacBook 12" 2015(820-00045) no display, no chime, no image
crwdns2934249:0crwdne2934249:0:
-
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]
MacBook 12" 2015(820-00045) no display, no chime, no image
crwdns2934249:0crwdne2934249:0:
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]
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]