[TechAssist] Re: Zenith SG2589W No power up
- From: Mike Barnett <passthecash@xxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 8 Oct 2001 13:24:33 -0700 (PDT)
Thanks Dave, Not sure why there's 220ufd either, do you suppose i change it
to reflect the print? This cap seems that it is original.
I was beggining to think the problem was not on main board myself. I'll
check/replace the sweep ic. I don't have much $ on the set to cover much
more time, If this fails to work i'll just move on. If it does work i'll
post as such.
Thanks again for all the help.
Mike
On Mon, 8 Oct 2001 13:05:40 -0500, techassist@xxxxxxxxxxxxx wrote:
>
> Ok but don't understand why C3407 is 220ufd - show 2 different schematics
> with 100ufd cap in both .. however..
> Since you do have 130V on HOT
> PS is probably functioning enough to
> start if it's getting start up from micro
> and sweep chip. Usually in that case
> you may have a bad sweep chip on
> the control board and trouble not on
> the 9-958 at all. My parts show several
> different control boards either 9-968
> or 9-823 but no note on either one.
> I usually just ordered replacement or
> exchange which is reason for no notes.
> I do show one on a 9-824 that
> had a bad sweep IC which wouldn't
> let the set start.
> Dave Routson
> ----- Original Message -----
> From: "Mike Barnett" <passthecash@xxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, October 08, 2001 11:28 AM
> Subject: [TechAssist] Re: Zenith SG2589W No power up
>
>
> >
> > Dave,
> > c3407 is 220ufd @ 25v it was leaky and i changed it. I've already
> > resoldered most of the main board including the fly. Still dead.
> >
> >
> >
> >
> > On Mon, 8 Oct 2001 10:02:08 -0500, techassist@xxxxxxxxxxxxx wrote:
> >
> > >
> > > Mike, if you haven't replaced C3407 100ufd cap yet do so and then
try
> it.
> > > Also solder TX3401 pins, may look ok
> > > but brads will float on board and cause
> > > no start also.
> > > Dave Routson
> > >
> > > ----- Original Message -----
> > > From: "Mike Barnett" <passthecash@xxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Monday, October 08, 2001 8:18 AM
> > > Subject: [TechAssist] Zenith SG2589W No power up
> > >
> > >
> > > >
> > > > Zenith Model SG2589W Module# 9-958
> > > > This unit wont power up, standby 5v is present and have 136 at
> > collector
> > > of
> > > > HOT, vcc at vertical is ok. Checked all caps in power primary and
> high
> > > > voltage curcuit all are ok. checked resistors near and around fly.
> > > > Any idea's?
> > > > Thanks
> > > >
> > > >
> > > >
> > > > .
> >
> >
> > Get It Fixed At
> > Rochester Electronics
> > 630 West Ridge Rd.
> > Rochester, NY 14615
> > 716.663.6870
> > www.RochesterElectronicsRepair.com
> >
> >
> >
> >
> >
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Get It Fixed At
Rochester Electronics
630 West Ridge Rd.
Rochester, NY 14615
716.663.6870
www.RochesterElectronicsRepair.com
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