Re: LCD Backlight repair on a HP Pavillion N5350 laptop


<andrew0812@xxxxxxxxx> wrote in message
news:1147363137.704956.147560@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
My backlight just went out one day on my laptop. After browsing
around, I found that it was most likely the inverter chip. I found a
replacement one and put it in. The backlight worked great for about 1
day. During that time, I had taken the opportunity to fix a noisy CPU
fan and clean out the dust from the heatsink. By the time I had
everything back together, the backlight wouldn't come on again. I
assumed that the inverter had failed, and tried another one. Still no
backlight. Either I messed something up when I had it open, or I have
developed another problem.


Probably the lamp is on its last legs and the inverter is detecting this.

BTW- never measure the output of an unloaded CCFL inverter with an
electronic meter, you can easily fry it unless it is rated for the very high
offload voltages. An analogue meter should be safe though.

Dave


.

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