I would change the damper diode and the pincushion diode too. That is if it has them. Al Marquardt ampm@xxxxxxx Al Marquardt Electronic Repair 206 W Main Girardville Pa. 17935 ----- Original Message ----- From: "Kevin" <kevintv@xxxxxxx> To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx> Sent: Tuesday, July 06, 2004 3:45 PM Subject: [TechAssist] RCA CTC177BP2, questions about the pincushion capacitor > Here is one for you RCA experts out there. Set came in with shorted > HOT, D1885. Replaced same with exact replacement that had lighter and > different white printing on the case of the transistor. Set fired up > with HV and HOT instantly blew. Replaced with C5297 and set came on > this time with washed out picture with retrace lines and severe > pincushion problem on the sides. The picture also filled the screen > slowly from the sides, making it appear to have a voltage regulation > problem. The width would also vary when the screen was adjusted. Pin > one of the STK measured -40.3 volts, well within specs. Not a voltage > regulation problem. Found and replaced the pincushion capacitor, C4407, > a 47nF blue cap that was open and bulged. All problems go away. > FLABBERGASTED. > > Now my question is two fold: Would this one pincushion cap cause all > these problems including causing the HOT to short? And could my > original HOT that I installed been a fake? > > I have a second RCA set (two in one day), a CTC187CN3 that had a shorted > HOT as well, a BUH517. I found a bad connection on the same pincushion > cap (this time a 41nF cap). The customer also complained about having > trouble getting the set to come on, and then when it did, the video > would go off and on. So far it is working fine on my test bench with a > new BUH517 installed and the bad connection repaired. Could this same > cap have caused these 3 problems as well? Thanks for listening. > > Kevin Wilks > Kevin's TV & Video Repair > Penticton BC Canada > kevintv@xxxxxxx > > > > > -------------------------------------------------------------------------- --- > 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/