[TechAssist] Re: Sony HOT question
- From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 17 Jun 2003 10:47:03 -0400
I would ignore such posts
Phillip R Hull STET
phil245@xxxxxxxxxxxxx
FAX 517--569-3075
----- Original Message -----
From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, June 17, 2003 10:11 AM
Subject: [TechAssist] Re: Sony HOT question
> 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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