Bruce did you replace the cap in the driver transformer primary..Eric Eric E M Electronics Deer Lake Nfld Canada tvman@xxxxxxxxxxxxxxx Bruce Tiedeman wrote: > I just checked the tube seems O.K. I do notice the H.O.T waveform "trailing > edge of the at the bottom", is not square like most, it jogs up slightly. > It may not be turning off properly. The print says, do not check the H.O.T > collector waveform so the scope probe may be causing this condition. I am > using a D1881 now it is getting a little hot, will let it run and see, may > have to order original. > this customer is impatient , > thanks for your help, > Bruce. > > > ----- Original Message ----- > From: "Webster's TV" <webstertv@xxxxxxxx> > To: <techassist@xxxxxxxxxxxxx> > Sent: Friday, June 17, 2005 11:12 AM > Subject: [TechAssist] Re: Panasonic CT-27S16CS (Chassis YAMEDP224C) HOT Part > number? > > > >>Bruce, >> >>The original part # for the H. O. T. is # BU2508DF, one thing that can >>cause failure of the H.O.T. besides the usual poor solder conections on >>the >>driver transformer, is a heater to cathode short in the Picture Tube, the >>tube will short intermittantly, turning bright blue, red, or >>green,depending >>on the short, the customer will leave the set on and in no time it draws >>enough current to blow the H.O.T. Usually tapping the neck of the tube >>when >>its playing OK will cause flashes of color of the shorted cathode. This >>may >>not be your problem, but I've had this problem several times in the past >>on >>these Quasar/Panasonic sets. >> >> HTH >> >> Dan Webster >> Webster's TV >> Shullsburg, Wi. >>----- Original Message ----- >>From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx> >>To: <techassist@xxxxxxxxxxxxx> >>Sent: Friday, June 17, 2005 8:18 AM >>Subject: [TechAssist] Panasonic CT-27S16CS (Chassis YAMEDP224C) HOT Part >>number? >> >> >> >>>Panasonic CT-27S16CS HOT Part number needed! >>> >>>I am hoping some one has information on this chassis. I repaired this set >> >>a >> >>>short while ago replacing the shorted H.O.T with a similar one and it >>>came >>>back same problem." H.O.T shorted fuse OK". The H.O.T that was in this >>>set >>>was a C4927 and I now realize it is similar to some Sony sets. I am not >> >>sure >> >>>if this is correct. This T.V set was in another shop and the same >> >>transistor >> >>>was replace previous. >>>I soldered the Horiz section as usual and went over it again. If some one >>>could confirm this part would appreciate it >>> >>>thanks >>>Bruce. >>> >>>B&T Electronics >>>139 Margaret St >>>Sarnia Ontario >>>Canada >>>N7T 2Y3 >>>519 344 1850 . >>> >>> >>>-------------------------------------------------------------------------- >> >>--- >> >>>This Email List is Public. Remove: http://www.tech-assist.org/remove.htm >>>Lost Password: http://www.tech-assist.org and select "Login Problems?". >>>Appliance Repair List: >> >>http://www.tech-assist.org/secure/tip/chatjoin.htm#app >> >>>Email Archives: //www.freelists.org/archives/techassist/ >>> >> >>----------------------------------------------------------------------------- >>This Email List is Public. Remove: http://www.tech-assist.org/remove.htm >>Lost Password: http://www.tech-assist.org and select "Login Problems?". >>Appliance Repair List: >>http://www.tech-assist.org/secure/tip/chatjoin.htm#app >>Email Archives: //www.freelists.org/archives/techassist/ >> > > > > ----------------------------------------------------------------------------- > This Email List is Public. Remove: http://www.tech-assist.org/remove.htm > Lost Password: http://www.tech-assist.org and select "Login Problems?". > Appliance Repair List: http://www.tech-assist.org/secure/tip/chatjoin.htm#app > Email Archives: //www.freelists.org/archives/techassist/ > ----------------------------------------------------------------------------- This Email List is Public. Remove: http://www.tech-assist.org/remove.htm Lost Password: http://www.tech-assist.org and select "Login Problems?". Appliance Repair List: http://www.tech-assist.org/secure/tip/chatjoin.htm#app Email Archives: //www.freelists.org/archives/techassist/