[TechAssist] Re: Toshiba Model cx2950c chassis 8820 Dead
- From: <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 21 Aug 2003 08:52:22 -0500
Check the polarity installation of the cap C841
you may have installed backward
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
Dallas, TX
----- Original Message -----
From: "Alvin Rose" <ajroseca@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, August 21, 2003 2:18 PM
Subject: [TechAssist] Re: Toshiba Model cx2950c chassis 8820 Dead
> Hi Al
> checked the installation of the Str regulator and it has the sk4512
> code on it..I installed it same as unit removed..Is there a difference
> pinout with this code..Set now comes on but C841 is overheating
> and is in on the sides.
> Alvin
> Al Gutz wrote:
>
> >Alvin
> >
> > Watch the STR for code SK4512, check resistance before installing.
> >
> >AL G
> >Al's TV-Electronics
> >Pembroke Ont.
> >Canada
> >
> >teltek3 wrote:
> >
> >
> >>Here's the "Poop"
> >>Change...
> >>R820....68 ohm 1/2 watt
> >>C841....22ufd/50V
> >>C822....920 ohm 1/2 watt
> >>Q802....STR-D1005T (Be careful with this Replacement, some Generics have
the
> >>pins pre-formed in the opposite direction, so when pulling out original
make
> >>note of the way this Regulator was positioned...writing facing in the
same
> >>direction as the one removed.)
> >>
> >>Only other thing may be that you have the polarity of C841
reversed...check
> >>that.
> >>
> >>-Ed-
> >>Tel-Tek Electronics
> >>Ontario-Canada
> >>teltek3@xxxxxxxxxxxx
> >>----- 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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