Here is the service manual for Dell Inspiron E1405 or 640M laptops. Will this tutorial work for a Dell Inspiron E1405? If not do you know where I can get instructions for that? You’ll find more information in the LCD screen category on the right side of the website. If you replaced the inverter but still have the same problem, apparently the backlight CCFL lamp is going bad. The inverter is cheap and most likely it will fix your problem. The inverter board is a power supply for the backlight lamp and it’s located inside the display pane. Most likely you have a problem with the screen inverter and it has to be replaced. If I close the LCD lid, which will put the notebook on standby, and re-open, the screen will be on again but only for few minutes before the same thing happens. Actually it is probably not turned off but extremely dim, and I could see (barely) shadows of windows and moving cursors on it. However I have another problem where after using the notebook for a few minutes the screen will be turned off. No, replacing hinges will not fix this problem. Would replacing the broken hinge (and tightening things up) solve this or could there be other reasons?
Replace both hinges, or just the broken one. Remove both hinges from the display cover. Now you can remove two screws securing both display hinges. Unplug the video cable from the inverter board (Red Arrow). Unplug the video cable from back (Green Arrow). Be careful it is attached to the video cable. You’ll find two screws on each side of the screen. Remove two screws securing the LCD panel to the display hinges.
Keep separating the bezel from the display with your fingers until you can remove it. Insert your fingers between the display bezel and the LCD panel and carefully separate the bezel from the display. Remove six screws located under these seals. Remove six rubber screw seals with a sharp object. Remove four screws securing the video cable.Ĭarefully disconnect the video cable from the motherboard by the yellow belt on the connector. The able had been disconnected from the motherboard. Be careful, it is attached to the motherboard via a flat ribbon cable.ĭisconnect the cable and remove the keyboard.
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