[TechAssist] Re: Toshiba Model cx2950c chassis 8820 Dead
- From: "Teltek3" <teltek3@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 22 Aug 2003 18:52:55 -0400
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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