Solved

hp probook 4520s screen gets dark at 90 degree

Posted on 2011-03-05
3
976 Views
Last Modified: 2012-08-13
My laptop (hp probook 4520s) screen turns black if I open the LCD to 90 degree or more.

Any idea? ( i think i have bad screen cable )

My laptop is under warranty still, but would it be faster for me to fix it myself? How do I do it?

any link to a video showing replacing the screen cable for hp probook 4520s would be a great help.

0
Comment
Question by:leoahmad
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 12

Expert Comment

by:Grant1842
ID: 35044835
I have seen screen cable do this , and all so the screen itself do this.

The screen usually fails around the tiny connections that are bonded to it.

I have seen the cable have poor connection. Just take the front bezel apart enough to unplug it from the mother board and back in and check.

Next take the screen out enough to see the flat cable .
With the laptop on and screen hooked up run your fingers lightly across the board where the cable plugs in to the screen.

If the connections are bad you will see the screen affected by this finger movement.

I hope this helps.
0
 
LVL 92

Expert Comment

by:nobus
ID: 35045190
normally, the video cable should have a fixing point somewhere, or enough slack to prevent that.
so check as said above.
it could also be a bad working lid switch
0
 
LVL 12

Accepted Solution

by:
asidu earned 250 total points
ID: 35045203
You can have a look at the service manual at
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c02439213/c02439213.pdf

Detailed instructions how to remove the LCD display from page 90 onwards.
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Before accusing the battery of being bad be sure to test if the Power Adaptor is working properly. Click Here(http://www.experts-exchange.com/Hardware/Laptops_Notebooks/A_3413-Check-Laptop-Power-Adapter-Voltage.html) . From the first time you ch…
SCOPE I WILL CONCENTRATE ON LCD SCREEN INVERTOR , CCFL BULB PROBLEMS.   The old question "My laptop screen is black what can it be ?". POSSIBLE PROBLEMS ARE.  1. INVERTER BOARD IS BAD.  2. CCFL BULB IN LCD SCREEN IS BAD.  3. NO VIDEO TO T…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…
Finding and deleting duplicate (picture) files can be a time consuming task. My wife and I, our three kids and their families all share one dilemma: Managing our pictures. Between desktops, laptops, phones, tablets, and cameras; over the last decade…
Suggested Courses

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question