I do not have a datasheet but that micro was a very common failure (TMP47C634N2454). It was Toshiba part number 23318860 but is now replaced by 23300357. Bob Waterman, CET® #RI-28 Master Technician License #9109 Service Manager / Parts Manager Gemini Computer, TV, & Security Alarms (508)695-7302 (508)695-7769 FAX geminitv@xxxxxxxxxxxxxxxx geminitv@xxxxxxx www.geminicomputertvsecurityalarms.com ----- Original Message ----- From: "Kevin" <kevintv@xxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Tuesday, June 24, 2003 11:05 PM Subject: [TechAssist] Re: Toshiba 27", TAC8949 chassis, model CX29679, weird problems > Does anyone have the datasheet for the microprocessor for this Toshiba > TV? The number of the micro is 47C634N2454. I have looked on Google > and Toshiba's website with no luck. Thanks. > > Kevin Wilks > Kevin's TV & Video Repair > Penticton BC Canada > kevintv@xxxxxxx > > -----Original Message----- > From: techassist-bounce@xxxxxxxxxxxxx > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of peter kowalik > Sent: Monday, June 23, 2003 7:53 PM > To: techassist@xxxxxxxxxxxxx > Subject: [TechAssist] Re: Toshiba 27", TAC8949 chassis, model CX29679, > weird problems > > Kevin As was mentioned in other replies could be the CPU, could be TAC > switches and another thing that it could be is bad .01 mfd disc caps on > data > lines to the CPU. Check them for small cracks where the legs of the cap > enter the disc. For what they cost it's almost easier and less expensive > just to change them on an older unit if you are having CPU type issues. > you > may experience problems with these discs because of age, because of > corrosion due to liquids which have dropped from the band around the > tube( > Windex, milk, pop slobber, etc) or because the disc body has cracks in > it, > from moving them out of the way (bend back and forth). These disc are > humidity sensitive and their properties will change with humidity if > their > bodies have lost their integrity (i.e. seal-cracks). Just my little > offer > that may help. peter Kowalik pe.kow@xxxxxxxxxxxx Keith's Stereo > Burl > ----- Original Message ----- > From: "Kevin" <kevintv@xxxxxxx> > To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx> > Sent: Monday, June 23, 2003 3:27 PM > Subject: [TechAssist] Toshiba 27", TAC8949 chassis, model CX29679, weird > problems > > > > This Toshiba TV will work fine for the first few hours. Then you > can't > > change channels or turn it off with the remote or at the set. If you > > unplug the TV it may come on when you plug it in, or it might be dead. > > If it does come on when you plug it in, it will be without the picture > > and if you press the buttons on the remote the picture will flash on > and > > off and sometimes stay on. It still won't change channels, though. I > > have checked for bad connections and high ESR caps in the power > supply. > > Has anybody seen a problem like this before? Thanks. > > > > Kevin Wilks > > Kevin's TV & Video Repair > > Penticton BC Canada > > kevintv@xxxxxxx > > > > > ************************************************************************ > **** > * > > CHECK OUT THE NEW CHATROOM! 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