Re: Soldering a Broken TV
- From: "StarBaseONE2@xxxxxxxxx" <StarBaseONE2@xxxxxxxxx>
- Date: 31 Oct 2006 17:26:50 -0800
On Oct 28, 5:21 pm, supp...@xxxxxxxxxxxxxx wrote:
I started having trouble with my TV after it was moved in a U-Haul from
San Francisco to Seattle. I managed to locate a faulty solder joint on
the board. Applying pressure to the joint with a strip of wood fixes
the problem.
My problem is this: I am very experienced with electronics and
soldering, but I have little experience when it comes to high voltage.
I need to fix the solder joint but I have no hardware to properly
discharge any high voltage capacitors in the TV. I don't think this is
a problem as the faulty solder joint is attached to what appears to be
a FET. However, it could also be a triac, which could mean that it's
attached to a HV part of the circuit. I don't want to stick my head in
there to find out exactly what it is. Would you advise fixing the
solder joint without first discharging the TV?
Thanks in advance!
Always best to discharge! you can use a simple flathead screwdriver
with an alligator clip. Clip it to the screwdriver and clip it to DAG
Ground... it will be a braid of wire attached to the CRT tube slide
flathead screw driver in under the anode cap that runs to the flyback
transformer. It will look like a large suction cup attached to the
picture tube.. You will hear a 'pop' as the HV discharges. Then it will
be ready to pull that board. I would still be leary of the filter caps
though!
.
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