Hi ifixit

___________________________

I'm having black screen(internal monitor) after ssd install.

Here is more details a short & long description:

Short description:

- opened iMac 2009 late, i7cpu

- Installed ssd with ifixit case.

- Problem when boot! Black screen with led glow(no screen signal but looks like backlight led is on)

- I can view computer via external monitor (ssd and everything els works)

-I suspect monitor cables could be damaged, since this is only thing I have touched.

What do you think would be the problem?

___________________________

Problem Description:

Nothing else than black light on screen. Seems to be display only related issue.

Suspect:

Damaged -

-Monitor Display cable

-Led backlight sync cable

-Logic board connectors

Info:

- Monitor is black with backlight so it's a glowing black. See video 1#

- on external monitor the computer works perfect. See pic 2#

___________________________

Long Detailed Description:

I have experience with building computers and my iMac(mid11) I have installed dual raid ssd with no problems.

I have installed a Evo 850 ssd in my iMac(late09) with a ifixit ssd case.

The display is black with a glow, looks like black with led backlight.

I get nothing on the display but I have a fully funktioning computer since i can use all via an external monitor..

How do I fix my internal monitor or cables?

Seems like it should be a cable issue, since It's the only things I have been touching while opening the iMac.

The cables have been firmly reconnected 3 times now and I don't understand why I see no life. Especially the monitor cable looks tricky but I have inserted it and pullback to make its not loosely connected.

The "Led backlight sync cable" got the wires bended in the start but i have straightened them out now (example in images) though i have read the "led backlight sync cable" is not important for screen to work but it make a hissing sound if disconnected.

Can it be the cable and what cable? I suspect it's the Display Port cable or the led sync cable since these cables look a little weak or have no plastic mounting system like led backlight cable..

NVRAM is reset

SMC is reset

Can I replace these cables or what do you recommend me to do?

What do you think would be the problem?

___________________________

Relevant links about iMac09late hardware and ssd installation:

Teardown. Guide:

iMac Intel 27" EMC 2309 and 2374 Teardown

SSD install guide (i followed this one)

Installation d'un second SSD (ou disque dur) dans les iMac Intel 27" EMC 2309 et 2374

Cable suppliers:

http://m.alibaba.com/product/60160776150...

___________________________

Image and Video's i have made of the computer as reference:

1#

Overall ssd installation images:

http://postimg.org/gallery/22bnoftyc/745...

2#

Focus on Monitor Display cable images:

http://postimg.org/gallery/yibeczte/46d4...

___________________________

Let me know if you need pictures of something or other info?

Thanks in advance.