[TechAssist] Re: Toshiba Model cx2950c chassis 8820 Dead
- From: "Teltek3" <teltek3@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 22 Aug 2003 20:59:00 -0400
I think we are talking about two different Chassis..This STR is free
standing...it's an older Chassis.
-Ed-
Ed Gaidies
Tel-Tek Electronics
Ontario-Canada
teltek3@xxxxxxxxxxxx
----- Original Message -----
From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, August 22, 2003 8:38 PM
Subject: [TechAssist] Re: Toshiba Model cx2950c chassis 8820 Dead
> Ed,
> Everyone of these I have seen, the REG gets mounted to a
heatsink...writing goes out.
>
> Jeff Dougherty
> Intrepid Video TV/VCR
> 263 S Front St
> Steelton PA 17113
> fax...717-564-4952
> www.intrepid-video.com www.tech-repair.net
>
> ----- Original Message -----
> From: "Teltek3" <teltek3@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, August 22, 2003 6:52 PM
> Subject: [TechAssist] Re: Toshiba Model cx2950c chassis 8820 Dead
>
>
> Jeff;
> These regulators are 7 pin.... 4 in the back 3 in the front. I have had
> non-OEM's come in 3 in the back and 4 in the front (STR not STK)
> And the tendency is to put them in the way the pins are pre-formed,
> which means it's actually in backwards. Have found this in the Toshiba set
> only.
>
> -Ed-
> Ed Gaidies
> Tel-Tek Electronics
> Ontario-Canada
> teltek3@xxxxxxxxxxxx
> ----- Original Message -----
> From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, August 22, 2003 5:42 PM
> Subject: [TechAssist] Re: Toshiba Model cx2950c chassis 8820 Dead
>
>
> > Ed,
> > Not sure how you can place one of these in backwards.
> > The thing with the legs formed the wrong way, merely means you got a
wrong
> OEM part.
> > Emerson, I think, is the one who has their regulators proprietary to
them,
> even though they have the same
> > STK number.
> >
> >
> > Jeff Dougherty
> > Intrepid Video TV/VCR
> > 263 S Front St
> > Steelton PA 17113
> > fax...717-564-4952
> > www.intrepid-video.com www.tech-repair.net
> >
> > ----- Original Message -----
> > From: "Teltek3" <teltek3@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, August 22, 2003 8:00 AM
> > Subject: [TechAssist] Re: Toshiba Model cx2950c chassis 8820 Dead
> >
> >
> > I think I mentioned this before. When you chnged the Regulator, did you
> put
> > it inthe right way, some non-OEM regulators have the legs formed the
wrong
> > way.
> > I have been a Toshiba ASC for years, and this circuit gave no other
> > problems after changing the components mentioned. I would suggest you
> > backtrack on the replacements you have done.
> >
> > -Ed-
> > Ed Gaidies
> > Tel-Tek Electronics
> > Ontario-Canada
> > teltek3@xxxxxxxxxxxx
> > ----- Original Message -----
> > From: "Alvin Rose" <ajroseca@xxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, August 21, 2003 3:08 PM
> > Subject: [TechAssist] Re: Toshiba Model cx2950c chassis 8820 Dead
> >
> >
> > > Hi Jeff
> > > the capacitors replaced were high ESR ..C841 blew out again after
I
> > > replaced
> > > Q801 and Q802..replaced it with a 160 volt rating but it gets hot
after
> > > a short
> > > time..Set comes on but is in on the sides..Is the rectifier D840 fast
> > > switching
> > > or regular diode Do you have the voltage rating of the zener D841
> > > thanks
> > > Alvin
> > > Intrepid Video Support wrote:
> > >
> > > >Alvin,
> > > >This sounds like the same set I am working on.
> > > >Were those capacitors you replaced high ESR?
> > > >Also...check the two diodes side bng
> > > >Intrepid Video TV/VCR
> > > >263 S Front St
> > > >Steelton PA 17113
> > > >fax...717-564-4952
> > > >www.intrepid-video.com www.tech-repair.net
> > > >
> > > >----- Original Message -----
> > > >From: "Alvin Rose" <ajroseca@xxxxxxxxxxxxxxx>
> > > >To: <techassist@xxxxxxxxxxxxx>
> > > >Sent: Wednesday, August 20, 2003 7:42 PM
> > > >Subject: [TechAssist] Re: Toshiba Model cx2950c chassis 8820 Dead
> > > >
> > > >
> > > >Hi Ed
> > > >c822 was changed with a 100 Mfd 50 volt electrolytic and r820 checks
ok
> > > >at 68 ohms ...Is there anything else that can cause this problem..I
> have
> > no
> > > >schematic for this one...Will replace c841 with a higher voltage unit
> > > >A.R
> > > >
> > > >
> > > >>-Ed-
> > > >>Tel-Tek Electronics
> > > >>Ontario-Canada
> > > >>teltek3@xxxxxxxxxxxx
> > > >>----- Originaere anything l Message -----
> > > >>From: "Alvin Rose" <ajroseca@xxxxxxxxxxxxxxx>
> > > >>To: <techassist@xxxxxxxxxxxxx>
> > > >>Sent: Wednesday, August 20, 2003 6:13 PM
> > > >>Subject: [TechAssist] Toshiba Model cx2950c chassis 8820 Dead
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>>Hi Guys
> > > >>>
> > > >>>We have a toshiba CX2958c chassis 8820 which was dead
> > > >>>replaced c863 and c866 also c841... Replaced voltage
> > > >>>regulators Q801 and Q802 set came on but after a few
> > > >>>seconds blew the case off C841 again..Any help on this
> > > >>>unit would be appreciated ... also value of C841
> > > >>>Alvin Rose
> > > >>>Radio & Tv Centre
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > >
> >
>
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