[TechAssist] Re: Sony HOT question
- From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 17 Jun 2003 10:11:06 -0400
Is this just an isolated incidence or do you routinely add heat sinks or
fans? My question is really whether it is a reasonable procedure to add a
fan to the HOT on Sony televisions routinely in order to keep them cooler.
Will this enhance the reliability of the sets enough to justify the dosts?
I think not, but wanted to check my reasoning. It seems to me that, similar
to the discussion we had on the RCAs running hot, that when you fix them
right they should not run so hot that the HOT fails without some other
problem causing it. I just don't change many HOTs that don't have something
else wrong.
I am engaged in a discussion on the matter with a consumer who says he is an
electronics designer who feels that a fan is needed. I agree that there
could be better heat sinking and a fan would not hurt, but I do not feel
that it will enhance the reliability significantly. Anyone agree, disagree?
I anyone wants to respond off list I'll post a summary of opionions so we
don't clog up the list with the matter.
Leonard G. Caillouet
Service Manager
Electronics World
Gainesville, FL
352-332-5608
352-332-5668 (fax)
----- Original Message -----
From: "Gary McCartney" <gary@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, June 16, 2003 3:59 PM
Subject: [TechAssist] Re: Sony HOT question
> I had a Sony with HOT running hot so I added on a larger heatsink and
> the temperature went down 10 deg. C.
> Didn't add a fan because I don't like the sound it makes when it starts
> to wear out. Note, this was done only after scoping the waveforms and
> measuring voltages to confirm the best I could that there weren't any
> defects left in the circuit.
>
>
>
>
>
> Gary McCartney
>
> McCartney Electronics
> 7134 Fife Rd, RR 7
> Guelph Ontario Canada N1H 6J4
> Fax: (519)821-1530
> email: gary (at) number63.ca
>
>
>
>
>
>
>
>
>
> "Leonard G. Caillouet" wrote:
> >
> > Any opinions on the value of putting a fan on the HOT of Sony
televisions to
> > keep them cooler? I personally don't think it is necessary because I
rarely
> > find one that fails for no apparent reason. They do run rather warm and
the
> > heat sinks could be larger, but it seems to me that if the set is fixed
> > properly there should be no need for a fan. I know some folks put a fan
on
> > the 6301 PS regulators. What about the HOTs? Anyone doing this?
> >
> > Leonard G. Caillouet
> > Service Manager
> > Electronics World
> > Gainesville, FL
> > 352-332-5608
> > 352-332-5668 (fax)
> >
> >
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> --
>
>
>
>
> Gary McCartney
>
> McCartney Electronics
> 7134 Fife Rd, RR 7
> Guelph Ontario Canada N1H 6J4
> Fax: (519)821-1530
> email: gary (at) number63.ca
>
>
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