The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills. A loose power connection can drain the battery and many computer making beeping noises are only a. Dim 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. All 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.Ĭonnect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Finally, I installed the update with the continuous beep sound.

January 13 Emma23 said: My Acer laptop keeps beeping when u say power. Picture flickering with dim display or appear black. I looked here and there into the laptop, pressed several keys and patted but no result was found. My Acer laptop keeps beeping when u say power up do u mean when Ur switching it on or when its charger Ive done the pin hole at bck and nothing its still beeping its nt when I first switch it on its when its on charge if I unplug charger its stop why is the beep when its on charge. Picture stays on in red and slowly be come normal.

You could have a faulty CCFL lamp or inverter, To determine if you have a LCD screen, inverter or video card problem, read this and follow these instructions.ĭefective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off.

Laptop making beeping noise