[colug-432] Mo' bulged electrolytic capacitors: Westinghouse LCD Monitor/TV, circa '06

[Jonathan Hogue]

I have a 19 inch flat screen needing some repair. Free to a good home!

On Mon, May 31, 2010 at 4:17 PM, Steve VanSlyck <s.vanslyck at spamcop.net> wrote:
> You're not supposed to repair! You're supposed to throw away, preferably in a way the prevents recycling, and then buy something new! This is not 1930 or 1945 any more We are a use-once-and-throw-away society now. I bet even your mattresses still have the original tags on them.
>
> ----- Original Message -----
> From: jep200404 <jep200404 at columbus.rr.com>
> To: colug-432 at colug.net
> Date: Mon, 31 May 2010 16:03:48 -0400
> Subject: [colug-432] Mo' bulged electrolytic capacitors: Westinghouse LCD Monitor/TV, circa '06
>
>> The plague continues.
>
> This time it a Westinghouse LCD monitor/TV, apparently made in 2006.
>
> Nominal Measured[1]
> 1000 µF 356 µF
> 1000 µF 289 µF
>  220 µF 427 pF
>  220 µF 537 pF
>
> This time the symptoms were a backlight that would not turn on,
> and when the when the power was plugged in,
> I could hear high frequency squealing for a while.
> Also, if the backlight brightness was reduced,
> it would flicker erratically and there was squealing
> corresponding to the flicker. So I thought,
> Ahah! it must be related to the high voltage power supply
> (inverter) for the flourescent tube backlight,
> and that's where I found the bad caps.
>
> I replaced the four bulged caps. Now it works fine.
>
>
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