[Tfug] OT: Troubleshooting a busted LCD TV (or Electrical Engineering for Dummies)

[Jim March]

Sorry but I'd be willing to bet 15.45v ain't your problem.  I've seen all
KINDS of weird DC voltages still run things.

Jim

On Fri, Aug 22, 2008 at 12:00 AM, Christopher Robbins <robbinsc at gmail.com>wrote:

> A friend of mine gave me a 17" Dell LCD TV that doesn't
> work anymore...Thing is getting power, but it doesn't output any
> video. You can see a green led when it's plugged in, but I'm
> not getting any video on it. He told me he can hear audio on it,
> but video hasn't been working at all.
>
> I whipped out my trusty Craftsman multimeter to give the AC adapter
> a test...It's rated for 16V output, but it's only getting about 15.45V.
>
> My question is - can .55V really make that much of a difference?  I assume
> you'd want to get an exact 16V out of the thing for it to work, but does it
> make that much of a difference?
>
> I'd like to figure out whether it could be just this before I dig deeper
> and deeper
> into the innards of this thing...Especially if a $20 power supply could
> mean the
> difference between a working and non-working LCD TV.
>
> Thanks!
>
>      - Chris
>
> --
> Christopher P Robbins
> Systems Programmer
> Department of English - University of Arizona
> 1423 East University Blvd.
> Modern Languages, Bldg. 67, Room 422
> Tucson, Arizona 85719
> Phone: (520) 621-3496
> Email: robbinsc at gmail.com
>
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