[TechAssist] Re: Leaky caps
- From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 28 Nov 2001 11:46:12 -0500
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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