Zum Hauptinhalt wechseln

Repariere deine Sachen

Recht auf Reparatur

Store

Modell A1418 / Ende 2012 / 2,7 & 2,9 GHz Core i5 oder 3,1 GHz Core i7 Prozessor

207 Fragen Alle anzeigen

No Power - won't turn on

My computer just shut down and won't power back on. Won't do anything. It is like it isn't even plugged in. I have tried a different power cord. I tried holding the power button. I have unplugged everything from the usb ports.

I have opened up the computer - I am wondering where the diagnostic led lights are. I am wondering if it is the power supply board - it does look like some wiring melted - although its not black or burnt...

Block Image

Beantwortet! Antwort anzeigen Ich habe das gleiche Problem

Ist dies eine gute Frage?

Bewertung 2

Kommentare:

The diagnostic LEDs are to the right of the RAM slots.

von

Could be a bad power supply unit

von

Einen Kommentar hinzufügen

3 Antworten

Gewählte Lösung

Be sure to discharge the big capacitors and handle it with one hand. I may be mistaken, but that looks like where the transformer bridges from the AC side to DC side. It will have very high voltage there. If that's exposed wire in the pic then it is likely indicating a problem. The end of one wire looks yellowish too, as if it may have been hot. All of your symptoms point to a bad power supply. About 70% of the time I see these it's the Power Supply, so I'd definitely put my money there.

War diese Antwort hilfreich?

Bewertung 2
Einen Kommentar hinzufügen

The diagnostic lights are to the right of the RAM slots.

War diese Antwort hilfreich?

Bewertung 2
Einen Kommentar hinzufügen

The diagnostic lights are under the RAM slots. See picture

Block Image

War diese Antwort hilfreich?

Bewertung 1
Einen Kommentar hinzufügen

Antwort hinzufügen

Lesli KeepSimple wird auf ewig dankbar sein.
Statistik anzeigen:

Letzten 24 Stunden: 0

Letzten 7 Tage: 0

Letzten 30 Tage: 4

Insgesamt: 1,363