Réparez vos affaires Communauté Boutique

Processeur quad-core Intel Core i7 à 2,0 GHz, 2,3 GHz ou 2,6 GHz (Turbo Boost jusqu'à 3,8 GHz) avec 6 Mo de cache L3 partagé.

580 questions Voir tout

Options

Internal Display no longer recognized!

Hi all,

Fellow Pro user here. Would appreciate some from those knowledgable with hardware repair!

I have a late 2013 Macbook Pro 15 inch Retina. It's primary display is no longer recognized, and according to Apple Diagnostics it is suffering from error codes: VFD004, VFD005, and VFD001.

The internal display is currently not recognized, but it works perfectly on an external display. I've replaced the LVDS cable, and for 24 hours afterwards, the internal display functioned perfectly. However, it has now died again.

Block Image

The display connector looked in suspiciously poor condition.

A new logic board costs 300+ and is a pain to fix. The cable is brand new, and clearly fine. But at the moment it's hard to ignore the connector itself as being the likely culprit.

Are there any other components I should consider, eg. display fuse?

Many thanks for any opinions. These machines are yet to be superseded in use value in my opinion, so I'd like to keep this one going without having to spend a fortune.

  • Prior to the display not functioning, artifacts and flickering appeared occasionally on the display.
  • The macbook would get unexpectedly hot.
  • It has suffered no liquid damage, and there has not been any degradation of the display whatsoever.
Répondre à cette question J'ai le même problème

Cette question est-elle utile ?

Oui Non
Indice 0
Ajouter un commentaire

2 Réponses

Filtrer par :
Les plus utiles Les plus récentes Les plus ancien(ne)s
Réponse la plus utile

Options

Sadly, the display has indeed gotten liquid damage. In this case I’m sure you did your self in when you tried cleaning the screen. Like many you used a window cleaner spray directly onto the screen. What happens is it drips down to the bottom and thats the area which you have in your picture. To prevent this spray a cloth to then wipe the display.

The white and green junk is the dried cleaner and corrosion. With the battery disconnected you can try to clean the connector area using a soft tooth brush and distilled water to clean off the junk. After cleaning you’ll want to wash the area down with 85% or better Isopropyl alcohol to rinse way any of the water and letting the part dry. See if that works. If the display is still dark take a flashlight and shine it through the apple logo in the lid are you able to see the faint images of your desktop? If you do then you’ll need to check your backlight logic to see if thats fixable.

Cette réponse est-elle utile ?

Oui Non
Indice 2

6 commentaires:

Thanks @danj for this helpful reply. Do you mean the display itself is damaged? As I said, it's perfect when working, and after changing the connector it worked perfectly.

Re:faint images of the desktop - no, the display is not recognized by macOS so it does not display an image of the desktop on there, which is apparent when connecting it to an external monitor.

I will try cleaning the connector area with a toothbrush and alcohol.

par

Think of it this way you have a good light bulb and you are sure the socket the bulb goes into is good but the light bulb is not turning on what would you do? You would check to see if the bulb was screwed in tightly and check to make sure the middle contact was making contact to the bulb.

Here the bulb is the LCD panel and the connection is point is this circuit board which is damaged. Like that middle pin problem with the bulb its not making contact. Here its the junk and corrosion and its possible the solder joints need repair but you need to clean things before we can go forward.

par

I've cleaned it all as per your instructions @danj but no response.

I saw this Louis Rossman video of a repair on exactly my model. Do you think this technique of blowing off the connector with a soldering iron is the last step I can try? https://www.youtube.com/watch?v=z1EOTP51...

par

@dowly - Let's get a fresh set of pictures of the connector now so we can see how it looks.

Do you have an DVM meter so you can test the power lines and continuity? Do you have the needed iron and tip?

While I have replaced the connector a few times you need to have the proper tools and there is still a bit of skill needed here otherwise you could just make more of a mess.

Fixing the connector in the display assembly is only one part of it! The cable could be damaged as well and then the main logic board its self could have issues due to the short.

Louis did follow the approach I would have taken. He was lucky! The fuse and the backlight logic on the main logic board was not damaged.

par

@danj I have replaced the cable, and I'm going to buy the iron and tip. But I don't want to damage the fuse/backlight logic.

I've also got a replacement connector.

par

Afficher 1 commentaire en plus

Ajouter un commentaire

Options

@dowly based on your image you have some work to do. Number 1 is to clean it as outlined on the first answer you received. Number two is to replace your display connector. Once you remove the old one, double check your solder pads. Looks like you have a few that are no longer present. You can most likely repair those by applying jumpers. It will be more evident once the board is cleaned etc. Post some images after that.

Now, it may also be possible that you need to replace the display once more. It is conceivable that it has gotten shorted out on the connector end.

Here is the main issue, you will have to have the tools to work on this as well as the skills to do so. If you need to send it out for repair, the cost will be most likely be higher than a replacement board.

Cette réponse est-elle utile ?

Oui Non
Indice 2

5 commentaires:

What's a sensible way to test whether it has shorted out on the connector end? And are you able to give me a more detailed instruction in repairing solder pads?

I've thoroughly cleaned the board/connector with distilled water and 85% alcohol to no avail.

par

try to find the schematics and the boardview file for your motherboard and check the power lines that give power to the socket. I think theses lines could have been affected by the liquid, we can see corrosion on the socket. If you're lucky your display could be good and you only need a connector replacement. Good luck :-)

par

@lemerise - Salut comment allez-vous! Tu nous as manqué

par

lemerise, welcome back!!!!!

par

@dowly let us see what it looks like after you have cleaned it. Double check your ogicboard for the 820-xxxx number (should be something like a 820-3662-A for your model) if so, we can help you with what lemerise is pointing out.

par

Ajouter un commentaire

Ajouter une réponse

dowLY sera éternellement reconnaissant.
Nombre de vues :

Dernières 24 heures : 1

7 derniers jours : 2

30 derniers jours : 32

Total : 1,161