Re: Weird problem with Samsung 950p monitor; LG or Niewsonic: which?

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#459

From: Terry Given
Date: Mon, 12 Jun 2006 22:46

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Yugo wrote:
> Jasen Betts wrote:
> 
>> After uplugging the mains there's dangeros voltages stored in two main 
>> places
>> inside the picture tube, and in the reservoir capacitors,  these charges
>> need to be avoided or dissipated.
> 
> 
> How do you "dissipate" them? I would have thought it would ne better not 
> to unplug the monitor, so that it remains groundes, just turn the 
> monitor off.

with a resistor having legs. Mine is a pair of 11kW tubular dynamic 
braking resistors (15mm OD x 200mm), with a nice set of fluke multimeter 
leads attached and all inside some nice heatshrink.

leaving the plug attached is a VERY BAD IDEA. That means the chassis is 
live up to the switch. In many modern monitors, its not even a mains 
switch, so the CHASSIS STAYS LIVE. You have been warned.

> 
>> If the fault is aging capacitors (and not a dodggy joint), it's a more
>> involved task... Don't ask you friend to fix it for you. (he probably 
>> gets that line from too may others already) but he be able to give you
>> some pointers, (and can probably tell your skill level better than I).
> 
> 
>  From what I see now, it seems I'll buy a new LCD and keep the CRT in a 
> corner hoping that Gawd will send me the messiah. After a year or two 
> with no messiah in sight, I'll throw it away.
>

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From: Terry Given <my_name@ieee.org>
Newsgroups: sci.electronics.repair,aus.electronics,alt.electronics.analog.vlsi
Subject: Re: Weird problem with Samsung 950p monitor; LG or Niewsonic: which?
Date: Tue, 13 Jun 2006 10:46:00 +1200
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