I had one that the coil lead didn't appear to go far enough into the hole to get a good solder connection. Russ Hoyt Hoyt's TV Exeter, NH ----- Original Message ----- From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Friday, May 21, 2004 2:44 PM Subject: [TechAssist] Re: GE TV 32GT740 CTC203CA9 does flyback need replacing? > Gary: > > So Far the ones I have done Just Needed the HOT Replaced and > the Coil from its base Resoldered. Some say to unsolder the Coil, and re-Tin > the Leeds and Clean etc as a precautionary. Theres also cases where some > small Signal Transistors outputting from the SMPS are recommended to be > replaced. Locations I do not recall offhand, but I bet someone will Quote > Winstips in here later. The HOT By the Way, has to have a Built In Damper > and Bias Resistor From E-B like the original does. 2SC5149 may be suitable. > The ones I use are a Fairchild equivalent. So far No problems. > > Steve Hearns > Technotronic Dimensions, NY [USA] > WWW.TECHNOTRONIC-DIMENSIONS.COM > 1-877-817-9885 (Voice / Fax Toll Free - US Only) > > ----- Original Message ----- > From: "Gary McCartney" <gary@xxxxxxxxxxx> > To: <techassist@xxxxxxxxxxxxx> > Sent: Friday, May 21, 2004 2:28 PM > Subject: [TechAssist] GE TV 32GT740 CTC203CA9 does flyback need replacing? > > > > This is only the 2nd CTC203 I've worked on. > > I have this GE TV model 32GT740 chassis CTC203CA9 with shorted HOT Q4401 > and reg. transistor Q4101 and open fuse. Haven't checked resistors yet > but diodes all check ok. I have tested the flyback with my HR flyback > tester and it shows a good collector waveform, 39kV output and no > indication of problems. > > I have read tips that suggest the flyback is usually bad if the HOT is > shorted. Is it a case where it shorts under full load? My HR tester > hasn't been wrong yet so I'm wondering if it is a given that the flyback > should be replaced regardless. > > What is the part number for this flyback? > > Thanks for any help. > -- > > > > > Gary McCartney > > McCartney Electronics > Guelph Ontario Canada > Est. 1984 > email: gary (at) number63.ca > > > -------------------------------------------------------------------------- -- > - > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > //www.freelists.org/archives/techassist/ > > > > -------------------------------------------------------------------------- --- > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > //www.freelists.org/archives/techassist/ ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/