Ok got it marked in yellow. thanks John Conti's TV Texas City , Texas >From: "Damon" <DamonEB@xxxxxxxxxxx> >Reply-To: techassist@xxxxxxxxxxxxx >To: <techassist@xxxxxxxxxxxxx> >Subject: [TechAssist] Re: [TV] CTC169 - Dead - FIXED >Date: Fri, 12 Jan 2007 07:19:59 -0500 > >Whoops! You're right....C4141 is the B+ cap..... >It's located right by the Heatsink, and kinda hard to get out of the board >due to it's location. > >Damon B >Telrad Electronics >Fort Wayne IN >----- Original Message ----- >From: "John Conti" <contitv@xxxxxxxxxxx> >To: <techassist@xxxxxxxxxxxxx> >Sent: Thursday, January 11, 2007 9:10 PM >Subject: [TechAssist] Re: [TV] CTC169 - Dead - FIXED > > > > Damon, I'M trying to locate the 180uf on the secondary, I can't find it >to > > mark it on my S.M. > > Did you by any chance Mean C4141 A 470 of at 180v I found it. > > > > Thanks > > > > > > > > John > > Conti's TV > > Texas City , Texas > > > > > > > > > > > > >From: "Damon" <DamonEB@xxxxxxxxxxx> > > >Reply-To: techassist@xxxxxxxxxxxxx > > >To: <techassist@xxxxxxxxxxxxx> > > >Subject: [TechAssist] Re: [TV] CTC169 - Dead - FIXED > > >Date: Thu, 11 Jan 2007 20:11:22 -0500 > > > > > >Actually the 39uf cap is the one that WHACKS the chopper >transistor....gets > > >leaky, adds DC to the AC signal and just turns that chopper on harder >until > > >it dies a day later.... > > > > > >The 2.2 uf, when it dries out causes the standby 143 to rise as high as > > >170V > > >dc.... > > > > > >Now there's one other that can mess with you.....It's the 180uf B+ cap >on > > >the secondary....I've had 2 or 3 that when they go bad, it won't >startup, > > >and measuring the 143V supply in standby you will see it sitting at >143, > > >then it drifts up to 152, then down, then up to 170, then down and it > > >sticks > > >at one voltage for a bit....that's because you get HASH on the DC >voltage > > >and it fools your meter...but not a scope.... > > > > > >Damon B > > >Telrad Electronics > > >Fort Wayne IN > > >----- Original Message ----- > > >From: "David Lessard" <mr_fixit@xxxxxxxxxxxx> > > >To: <techassist@xxxxxxxxxxxxx> > > >Sent: Thursday, January 11, 2007 4:42 PM > > >Subject: [TechAssist] Re: [TV] CTC169 - Dead - FIXED > > > > > > > > > > > > > > Peggs, > > > > > > > > I do own a ESR meter and it found several bad capacitors around >U4104 > > > > (TEA2261). I replaced 2.2uf/100v, 15uf/50v, 39uf/50v and 470uf/50v; >this > > > > brought the TV back to life. I'm lucky because I'm told a stressed > > > > 2.2uf/100v cap can take out the chopper transistor and TEA2261 IC. > > > > Thanks to all who responded, you know who you are. > > > > > > > > David Lessard > > > > Mr_fixit@xxxxxxxxxxxx > > > > Alexandria, Ontario, Canada > > > > > > > > -----Original Message----- > > > > From: techassist-bounce@xxxxxxxxxxxxx > > > > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of peggs > > > > Sent: Thursday, January 11, 2007 10:32 AM > > > > To: techassist@xxxxxxxxxxxxx; tv@xxxxxxxxxxxxxxx; > > > > techassist@xxxxxxxxxxxxx > > > > Subject: [TechAssist] Re: [TV] CTC169 - Dead > > > > > > > > If you have an ESR meter(get one if you don't)...........check the >Caps > > > > around the TEA2261 > > > > > > > > Peggs > > > > > > > > At 08:49 AM 1/11/07, David Lessard wrote: > > > > >Hello Techs, > > > > > > > > > >I have a CTC169 that is dead, the SMPS chopper transistor is intact >and > > > > >so is the HOT, I have no voltage at either end of CR4118; I have >15V >at > > > > >U4101 pin 16. I have parts coming in today, all the caps around >U4101, > > > > >NTE580 (CR4118), TEA2261, etc. I want to be sure about what is >causing > > > > >the problem, does anyone have a troubleshooting flow chart on the >SMPS > > > > >or any tips on what I should be looking for. > > > > > > > > > >Thanks, > > > > > > > > > >David Lessard > > > > >Mr_fixit@xxxxxxxxxxxx > > > > > > > > > > > > > > > >----------------------------------------------------------------------- > > > > ------ > > > > >Remove: http://www.tech-assist.org/remove.htm > > > > >Set Vacation > > > > mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation > > > > >Lost Password: http://www.tech-assist.org and select "Login > > > > Problems?". > > > > >Email Archives: //www.freelists.org/archives/techassist/ > > > > > > > > > ------------------------------------------------------------------------ > > > > ----- > > > > Remove: http://www.tech-assist.org/remove.htm > > > > Set Vacation > > > > mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation > > > > Lost Password: http://www.tech-assist.org and select "Login >Problems?". > > > > Email Archives: //www.freelists.org/archives/techassist/ > > > > > > > > > > > > > > > >-------------------------------------------------------------------------- > > >--- > > > > Remove: http://www.tech-assist.org/remove.htm > > > > Set Vacation > > >mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation > > > > Lost Password: http://www.tech-assist.org and select "Login >Problems?". > > > > Email Archives: //www.freelists.org/archives/techassist/ > > > > > > >--------------------------------------------------------------------------- >-- > > >Remove: http://www.tech-assist.org/remove.htm > > >Set Vacation > > >mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation > > >Lost Password: http://www.tech-assist.org and select "Login >Problems?". > > >Email Archives: //www.freelists.org/archives/techassist/ > > > > _________________________________________________________________ > > Type your favorite song. 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