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Main => Monitor/Video Forum => Topic started by: Arm123 on July 21, 2008, 09:07:59 pm

Title: What is this component ?
Post by: Arm123 on July 21, 2008, 09:07:59 pm

Hey there guys,

Im looking at a Hitachi projection TV chassis that a next door neighbor asked me to look at.  I checked and replaced the HOT, as it was bad.

Also, there are some parts on the board that look like diodes (are black), but are not.  They have no markings on them and are prefixed with 'L' in the component numbers.  ex: L403

Any idea what they are and how to test them ?    :dunno

Title: Re: What is this component ?
Post by: MonMotha on July 21, 2008, 09:48:25 pm

Those would be inductors.  An LCR meter can test most of the parameters (inductance and DC resistance).  They tend to not fail except in catastrophic (i.e. melting) manners.

Title: Re: What is this component ?
Post by: Arm123 on July 21, 2008, 10:23:14 pm

sweet !  thanks for helping  ;D  I was clueless