[TechAssist] Re: Zenith Projector PVR4663dt B+ not getting to HOT
- From: ray clarke <ray260@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 29 May 2002 07:55:35 -0700 (PDT)
Thanks Walter I now have a starting point. Sure enough
no impulse on the primary of TX3402.
Thanks
Ray Clarke
Billette TV Howick, QUE
--- walter wood <wwood_38478@xxxxxxxxx> wrote:
>
> The board no. is 9-1302-07. The sticker probably
> fell off. They stick them on the heat sinks.
> Anyway,the B+ goes to the HOT through TX 3500, pins
> 2 and 5; TX3204(flyback) pins 1,2 and 3.
> This is the 115VSW from CR3412 and L3402 off pin 10
> of TX3402.
> At least, that's what I come up with, from this
> stupid zenith schematic.
> HTH
> Walter
> --- ray clarke <ray260@xxxxxxxxx> wrote:
> >
> > The only other number I see is 204-2369-06 on the
> > foil
> > side. There is a 10-09 on the component side but
> > I
> > doubt if that's it. I'm wondering if the b+ from
> > the
> > ac bridge goes directly to the HOT or if it might
> > go
> > thru a switching power circuit' Thanks
> > Ray Clarke
> > Billette TV
> > Howick,Que
> > --- peter kowalik <pe.kow@xxxxxxxxxxxx> wrote:
> > >
> > > Ray that number that you have quoted is the
> > number
> > > of the bare board after
> > > it waqs screened, I beleive that what was being
> > > asked was the number of the
> > > finished module. They usually begin with
> > 9-00xxxx.
> > > peter
> > >
> > > -----Original Message-----
> > > From: techassist-bounce@xxxxxxxxxxxxx
> > > [mailto:techassist-bounce@xxxxxxxxxxxxx]On
> > Behalf Of
> > > ray clarke
> > > Sent: Monday, May 27, 2002 5:12 PM
> > > To: techassist@xxxxxxxxxxxxx
> > > Subject: [TechAssist] Re: Zenith Projector
> > PVR4663dt
> > > B+ not getting to
> > > HOT
> > >
> > >
> > >
> > > The board number is 204-2969-08
> > >
> > > --- ray clarke <ray260@xxxxxxxxx> wrote:
> > > >
> > > > This one came in with the pos. juntion of the
> > > > rectifier bridge burned out and arcing. I
> > can't
> > > > trace
> > > > how the b+ gets to the hot. only have the c3
> > > schem.
> > > > from zenith .Close but no cigar.
> > > > Thanks ray
> > > > Billette TV Howick QUE.
> > > >
> > > >
> >
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> =====
> Walter Wood
> Future Tech Home Center
> 2786 Hwy. 43 N.
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