"John E." schreef in bericht
obal.net...
What fails most commonly in inverter circuits in, for example, 18 inch LCD
displays?

http://www.lcdrepair.us/1800inverterKUBNKM045A.html

I know anything *can* fail. But is there a common, high-frequency failure
component in these inverters?

Thanks.
--
John English


Basicly the same that has high failure rate in CRT TV-sets and -monitors:
The high voltage components. So the transistors (either bipolair or FET) and
the connected coils/transformers. Too often, when one fails, the other is
draged along into downfall. As for the transistors some simple measurements
with an ohmmeter will often tell the story. Coils however may have an
internal short that cannot be found by such an instrument. I found a ringer
being usefull although the results tend to be less pronounced then when
measuring LOPTs.

petrus bitbyter