Re: Laptop LCD Dead? Or Inverter Board ?




"Paul Baker" <p@xxxxxxxxxxxxxxxxx> wrote in message
news:7JWdnU4fNr2sPoXZRVnyrA@xxxxxxxxxxxx
I've had the display section of a laptop apart, and on reassembly the
screen backlight died a few seconds after switching on. A bit of work with
a multimeter has shown that the fuse on the inverter board has blown.

Bypassing the fuse with a piece of wire (temporarily, of course) causes
the backlight to flicker on for a fraction of a second when the laptop is
switched on, then all goes dark again. Obviously something somewhere has
broken, but before I splash out on a new inverter board, is it possible
that it is actually a problem with the backlight itself? Should I instead
be looking to replace the display panel?

invertor, check the capacitors around the transformers, also check the 2
drive transistors that are around the same capacitors. Often the
Capacitors have failed, causing the transistors to die. then the current
increase blows the 2A SMD fuse links.

Robin


.



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