Inverter or Backlight ... Hi Every one, I have a laptop which has a dim screen, I am not sure if its the inverter or the back light that needs to be replac ...

smartnhandsome · 03-27-2009, 11:42 AM

Hi Every one,
I have a laptop which has a dim screen, I am not sure if its the
inverter or the back light that needs to be replaced. Its a Sony
FS-740/w series laptop. I want to be sure which one needs to be
replaced so that i can order it online. Can any one suggest a way to
check if the inverter is working correctly.
Thanks in advance.
Regards

Steve · 03-27-2009, 11:44 AM

Did you first try and hit the function key (Fn) and raising the brightness (either F6 or F7) ?

itparts1982 · 06-09-2009, 06:04 PM

No easy diag without some known good parts (i.e. an inverter or LCD)...check the inverter for any physical damage, burn marks and such...that'll help make the diag easier...

cheers

lennyd · 08-23-2009, 10:38 AM

plug a monitor in the back of the laptop if you can see the screen then its your inverter

[NFO]N0S · 09-22-2009, 10:57 AM

Bulbs do fail so it is hard to say which part is bad without testing it out. It could very well be a simple inverter or the actual bulb needs to be replaced.

Either way it is repairable

03-27-2009, 11:42 AM	#1
smartnhandsome Registered User Join Date: Mar 2009 Posts: 1 Credits: 221	Inverter or Backlight Hi Every one, I have a laptop which has a dim screen, I am not sure if its the inverter or the back light that needs to be replaced. Its a Sony FS-740/w series laptop. I want to be sure which one needs to be replaced so that i can order it online. Can any one suggest a way to check if the inverter is working correctly. Thanks in advance. Regards

03-27-2009, 11:44 AM	#2
Steve Dukefrukem Join Date: Jul 2004 Location: Boston Posts: 33,528 Reviews: 18 Benchmarks: 177 Credits: 1,871,352	Did you first try and hit the function key (Fn) and raising the brightness (either F6 or F7) ? __________________ ^ (my stuff)

06-09-2009, 06:04 PM	#3
itparts1982 Registered User Join Date: Jun 2009 Location: Atlanta, GA USA Posts: 13 Credits: 223	No easy diag without some known good parts (i.e. an inverter or LCD)...check the inverter for any physical damage, burn marks and such...that'll help make the diag easier... cheers __________________ Genuine OEM Sony VAIO Parts & Service

09-22-2009, 10:57 AM	#5
[NFO]N0S Registered User Join Date: Oct 2006 Location: U.S.A. Posts: 775 Credits: 1,543	Bulbs do fail so it is hard to say which part is bad without testing it out. It could very well be a simple inverter or the actual bulb needs to be replaced. Either way it is repairable __________________ I am a component level notebook technician. I do repairs on the side, if you need help, Private Message me!

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08-23-2009, 10:38 AM	#4
lennyd Registered User Join Date: Aug 2009 Posts: 4 Credits: 221	plug a monitor in the back of the laptop if you can see the screen then its your inverter

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