Aller au contenu principal

A2115 / 2019 / Processeurs à partir de 3,0 GHz 6 cœurs i5, jusqu'à 3,6 GHz 8 cœurs i9. Commercialisé le 19 mars 2019.

133 questions Voir tout

Blank screen, led 1 2 3 5 are on. Fan starts speeding up

Dropped the LCD, purchased new, and I get a blank screen. LED when boot LED 1, 2, 3, and 5 are on. LED 4 off.

Répondre à cette question J'ai le même problème

Cette question est-elle utile ?

Indice 0
Ajouter un commentaire

1 Réponse

Réponse la plus utile

Inspect the logic board connectors for damage. It doesn’t take much to mess you up if the screen pulled away.

Also did you transfer the thermal sensor to the new screen?

Cette réponse est-elle utile ?

Indice 1

1 commentaire:

Agree. If fans are revving, it's likely the machine isn't getting a check in from a specific sensor. I wasn't aware this model had 5 LEDS, but LED 4 on other iMacs is generally the indicator for video is being sent to the display/display is detected. I would be suspect of either the cables, if they were transferred from the old display) or the connections on the board, specifically the one with the locking lever since the other connector is for backlight/power.

par

Ajouter un commentaire

Ajouter une réponse

Eric Tabucchi sera éternellement reconnaissant.
Nombre de vues :

Dernières 24 heures : 0

7 derniers jours : 0

30 derniers jours : 3

Total : 42