Having problems with your Sharp WideNote M4000 ?

Screen getting dark on sharp pc-m4000 - Sharp WideNote M4000


Answers :

You most likely have a defective screen - a defective inverter or a CCFL lamp. \015\012\015\012To determine if you have a LCD screen or video card problem, read this and follow the instructions.\015\012\015\012Defective CCFL backlight, it may have the following symptom:\015\012\015\012\015\012Screen flashs on red/pink and off. \015\012Picture stays on in red and slowly be come normal. \015\012Picture flickering with dim display or appear black. \015\012Picture flickering on and off.\015\012All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp\015\012\015\012Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.\015\012\015\012Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.\015\012The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.\015\012Check out www.lcdparts.net for parts, repair service and DIY info.
Repair Help & Product Troubleshooting for Sharp WideNote M4000

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