Windows, Operating System, Security, Networking, Malware, Support, Forum, Help Site Check Our Facebook Page!
Notices
Mobile Devices Notebooks, Laptops, Tablets, Smartphones, & Mobile Devices. If it's mobile, ask about it here.


Register your FREE account to unlock additional features at WindowsBBS.com
   
 
 
LinkBack Thread Tools
Old 25th December 2010   #1
Senior Member
THREAD STARTER
 
Blufx's Avatar
 
Profile:
Join Date: Feb 2002
Location: Simpsonville,South Carolina
Posts: 342
Computer Experience:
Experienced
Blufx Reputation Level

My System

Dell Inspiron 1545 video display


Someone brought me a Dell Inspiron 1545 laptop with a broken LCD. I ordered a new display with LED backlight. I installed the LCD, but when I powered up the laptop, it wouldn't work. I don't mean it wouldn't light up, it didn't work at all. Connecting it by the VGA port shows the video card is good. I tried the display on another laptop and other displays on this one with the same results. The new display is good, and no display will work on the Dell. I reseated the connectors on the video data cable with no joy and then repaced it with a new one. Still, it refuses to work. Setting the computer bios to default didn't help either. I never tried it before I replaced the LCD but the owner said it worked fine except for the broken screen. I don't know what else to try. Does anybody have an idea?

Thanks in advance,
Blufx

Blufx is offline  

 

Register
to remove this ad.
 
 

Old 26th December 2010   #2
Away...
 
Profile:
Join Date: Aug 2010
Location: Spain
Posts: 1,529
Computer Experience:
intermediate
markmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Level

My System
As this laptop is not functioning with any screen that you connect it sounds like there is another problem. Have you tested the old screen to see if it actually was dead?

Have you tried to get the diagnostics to run, hold down the Fn key while you are pressing the power button. If it then shows the diagnostics screen run the memory and hard drive tests. A faulty memory module could cause a blank screen, I've had this problem on a 1520.


Last edited by markmadras; 26th December 2010 at 14:55.
markmadras is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #3
Senior Member
THREAD STARTER
 
Blufx's Avatar
 
Profile:
Join Date: Feb 2002
Location: Simpsonville,South Carolina
Posts: 342
Computer Experience:
Experienced
Blufx Reputation Level

My System
markmadras,
Thanks for the suggestion. The old screen was broken, so I trashed it. I did have a couple other LED backlit screens I tried.
I try the to run the diagnostics in a little while.

Blufx

Blufx is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #4
Away...
 
Profile:
Join Date: Aug 2010
Location: Spain
Posts: 1,529
Computer Experience:
intermediate
markmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Level

My System
Quote:
Connecting it by the VGA port shows the video card is good.
Sorry, I skipped this in your opening post. Are you saying that it displays as normal and all boots up ok when connected to an external monitor?

markmadras is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #5
Senior Member
THREAD STARTER
 
Blufx's Avatar
 
Profile:
Join Date: Feb 2002
Location: Simpsonville,South Carolina
Posts: 342
Computer Experience:
Experienced
Blufx Reputation Level

My System
Sure does. I'm running the diagnostics and watching on an external monitor now.

Blufx is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #6
Away...
 
Profile:
Join Date: Aug 2010
Location: Spain
Posts: 1,529
Computer Experience:
intermediate
markmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Level

My System
After the tests, take a look in Device Manager and check that the graphics drivers are all ok and nothing is showing yellow triangles. Did the external monitor come on without you doing anything, if so try hitting Fn and F8 together, that should switch between the on board and external screens.

markmadras is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #7
Senior Member
THREAD STARTER
 
Blufx's Avatar
 
Profile:
Join Date: Feb 2002
Location: Simpsonville,South Carolina
Posts: 342
Computer Experience:
Experienced
Blufx Reputation Level

My System
I had to hit fn + f1 to switch to ex. monitor. All of the test came out fine, although I was looking at them on the ex. monitor. A few wouldn't display correctly on the CRT so I skipped them. In the meantime, everything in the device manager looks good. I reinstalled the graphics driver for the heck of with no change.
I've read some replies to similar case in other forums and found some folks had to replace the motherboard. This doesn't make sense. How could breaking the LCD take out the mobo?

Blufx is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #8
Senior Member
THREAD STARTER
 
Blufx's Avatar
 
Profile:
Join Date: Feb 2002
Location: Simpsonville,South Carolina
Posts: 342
Computer Experience:
Experienced
Blufx Reputation Level

My System
News flash,
I just found the display is working(I couldn't see it before), just not the back light. Remember, this is an LED backlit display with a new data cable. Still, no display will light up on it. Does this narrow down the possibilities?

Blufx is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #9
Away...
 
Profile:
Join Date: Aug 2010
Location: Spain
Posts: 1,529
Computer Experience:
intermediate
markmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Level

My System
You may be onto something, take a look at this,

http://support.dell.com/support/edoc....htm#wp1109848

Near the bottom of the page it shows the Display Inverter, this supplies power to the back light. Have you replaced it as it may have blown.

markmadras is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #10
Senior Member
THREAD STARTER
 
Blufx's Avatar
 
Profile:
Join Date: Feb 2002
Location: Simpsonville,South Carolina
Posts: 342
Computer Experience:
Experienced
Blufx Reputation Level

My System
I'll look, but as I said, this is an LED backlight. There's no inverter.

Blufx is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #11
Away...
 
Profile:
Join Date: Aug 2010
Location: Spain
Posts: 1,529
Computer Experience:
intermediate
markmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Level

My System
Just been looking through the manual again and as far as I can understand the correct switch to change screens is the Fn & F8 keys, have you tried that combination.

Quote:
I'll look, but as I said, this is an LED backlight. There's no inverter.
Understood, it was the old screen that was LCD with standard back light, are you sure the new screen is compatible.


Last edited by markmadras; 26th December 2010 at 19:49.
markmadras is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #12
Senior Member
THREAD STARTER
 
Blufx's Avatar
 
Profile:
Join Date: Feb 2002
Location: Simpsonville,South Carolina
Posts: 342
Computer Experience:
Experienced
Blufx Reputation Level

My System
It's fn+f1 on this one. f8 is for speaker

Blufx is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #13
Senior Member
THREAD STARTER
 
Blufx's Avatar
 
Profile:
Join Date: Feb 2002
Location: Simpsonville,South Carolina
Posts: 342
Computer Experience:
Experienced
Blufx Reputation Level

My System
Yep, it's just like the page you sent except there's no inverter on this one. Funny, they put the same model, same numbers, with two different displays. There's no way to tell unless you open it. I ordered the first display by model number like I always do. I got a CCFL backlight display. I had to send it back and specify the LED.

Blufx is offline  

Did you find this post helpful? Yes | No
Old 26th December 2010   #14
Senior Member
THREAD STARTER
 
Blufx's Avatar
 
Profile:
Join Date: Feb 2002
Location: Simpsonville,South Carolina
Posts: 342
Computer Experience:
Experienced
Blufx Reputation Level

My System
As a matter of fact, since I had this CCFL display, rather than send it back, I advertised it Craigslist. One woman was going to drive about 75 miles to get it. She called Dell, gave them the serial number and read my ad to the tech. He told her it was exactly what she needed. After driving up here, I opened her laptop to find an LED display.

Blufx is offline  

Did you find this post helpful? Yes | No
Old 27th December 2010   #15
Away...
 
Profile:
Join Date: Aug 2010
Location: Spain
Posts: 1,529
Computer Experience:
intermediate
markmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Levelmarkmadras Reputation Level

My System
Ohhh the complexity of getting spares.

So what now. I'm out of ideas and obviously your laptop isn't quite the same as detailed in the Dell site manuals. Unless you find there is a connection somewhere that hasn't gone in just right when you reassembled I can only presume that something on the motherboard has died.

markmadras is offline  

Did you find this post helpful? Yes | No


 

THIS THREAD HAS EXPIRED.

Are you having the same problem? Please post a new thread, but first you'll have to join us by Registering (FREE).



Discussion Forums
Operating Systems
Windows 8 Windows 8
Windows 7 Windows 7
Windows Vista Windows Vista
Windows XP Windows XP
Windows Server System Windows Server System
Legacy Windows OS Legacy Windows OS
Internet & Networking
Networking (Hardware & Software) Networking
Internet Explorer Internet Explorer
Microsoft Mail Microsoft Mail
Firefox, Thunderbird & SeaMonkey Firefox, Thunderbird
      & SeaMonkey

Web Applications & Cloud Web Applications & Cloud
General Internet
Security
Malware and Virus Removal Malware and Virus
     Removal

Security and Privacy Security and Privacy

Other
Other PC Software Other PC Software
Test Posts Test Posts
Hardware
PC Hardware PC Hardware
Mobile Devices Mobile Devices
Community
Introductions Introductions
General Discussions General Discussions
Site Comments & Suggestions Site Comments
      & Suggestions

News News @ WindowsBBS

Thread Tools


Find us on Facebook   Web Of Trust Rating

All times are GMT. The time now is 02:34.


Recent Discussions
DVD Drive (9)
Dell Studio 540 350watt psu require.. (2)
Unable to see other computers after.. (4)
Trouble seeing wireless printer Bro.. (4)
Keyboard and mouse freeze after a f.. (6)
Microsoft Windows 7 Support to End .. (5)
Wrong CPU Installing (5)
Win 7 32 to win 7 64 bit using Easy.. (1)
Windows 7 OLEAUT32.DLL Error (2)
Microsoft July 2014 Security Bullet.. (0)
Cannot access my website using IE 1.. (11)
External Hard Drive Question. (1)
MS security updates just released (1)
Make an original shortcut (5)
Internet connection lost in sleep m.. (6)
Malwarebytes Anti Exploit or MS EME.. (15)
External Hard Drive Freezes Entire .. (16)
Problem with resetting my outlook e.. (0)
Cannot mount Seagate to Router (12)
XP fails to boot (4)


Donate!
Support Windows BBS!



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO
Copyright 2002 - 2013 WindowsBBS.com. All rights reserved.
FDMA Media LLC
Terms of Use, Legal Information & Privacy Policy
Page generated in 0.14059 seconds with 7 queries