[TechAssist] Re: Leaky caps
- From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 28 Nov 2001 20:39:14 -0500
My "stinky caps" always smell like burnt rubber tires. Other say they smell
like fish....
Damon Brunger
damon101@xxxxxxxxxxxxxx
Telrad Electronic Services
Ft Wayne, IN 46815
----- Original Message -----
From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, November 28, 2001 11:46 AM
Subject: [TechAssist] Re: Leaky caps
>
> No Ray, they were c4801 and c4503.
>
> Thanks for all of the input, guys. I too have not seen much of this
problem
> and am hoping it was a limited to these circuits. I don't like to have to
> go fishing for stinky caps...
>
> Leon.
>
> Leonard G. Caillouet
> Service Manager
> Electronics World
> Gainesville, FL
> 352-332-5608
> 352-332-5668 (fax)
>
> ----- Original Message -----
> From: "Ray Lufkin" <Rlufkin@xxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, November 28, 2001 10:12 AM
> Subject: [TechAssist] Re: Leaky caps
>
>
> >
> > Hey Len I'm in Tampa so I know all about lightning. That wasn't the
main
> > power filter was it?? "cause that's a common problem with that chassis.
> >
> >
> > ----- Original Message -----
> > From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Tuesday, November 27, 2001 12:32 PM
> > Subject: [TechAssist] Re: Leaky caps
> >
> >
> > >
> > > Thanks for the vote of confidence Ray, but I don't want to have to
> remove
> > or
> > > solder every cap if it is not typical. We have so much lightning in
> this
> > > area that I wonder if these were not due to surges...one of them was
> > pretty
> > > puffed up. Like I said, I have not seen this problem before in the
> CTC169
> > > but I only do a few of them a month.
> > >
> > > Leon.
> > >
> > > Leonard G. Caillouet
> > > Service Manager
> > > Electronics World
> > > Gainesville, FL
> > > 352-332-5608
> > > 352-332-5668 (fax)
> > >
> > > ----- Original Message -----
> > > From: "Ray Lufkin" <Rlufkin@xxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Tuesday, November 27, 2001 10:55 AM
> > > Subject: [TechAssist] Leaky caps
> > >
> > >
> > > >
> > > > Sounds like you got it down already Len. Give a real good look on
the
> > > board
> > > > and a real good smell and then use your Dick Smith Meter on suspect
> caps
> > > > like vertical and any that have been exposed to heat and/or in the
> smps
> > > > area..
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Tuesday, November 27, 2001 10:09 AM
> > > > Subject: [TechAssist] CTC169
> > > >
> > > >
> > > > >
> > > > > I am wondering if you all have seen many leaky caps in these sets.
> I
> > > just
> > > > > did two this week that had leaky Nichicon 105 degree caps. The
> > > > electrolyte
> > > > > caused enough corrosion to damage a couple of traces. These are
the
> > > first
> > > > I
> > > > > have seen like this and am wondering if we can expect this to be
as
> > > common
> > > > > as in the Hitachi and Misubishi projection sets. How far do you
> guys
> > go
> > > > in
> > > > > looking for other caps going bad on these sets. I have found that
> > > > sometimes
> > > > > the only way that you can find them is to heat the pins and see if
> > they
> > > > > smell or remove them and visually inspect them. Many of the ones
> that
> > > are
> > > > > starting to leak check OK on all four tests, capacitance, ESR, DA,
&
> > > > leakage
> > > > > current. Should we be checking all of them on these sets?
> > > > >
> > > > > Leon.
> > > > >
> > > > > Leonard G. Caillouet
> > > > > Service Manager
> > > > > Electronics World
> > > > > Gainesville, FL
> > > > > 352-332-5608
> > > > > 352-332-5668 (fax)
> > > > >
> > > > >
> > > > >
> > > > > =================================
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