Regulated B+ is too high, standby should be almost the same as in run. 143Vdc. Change the 3 electrolytics in the regulator C4102, C4108, C4104
Robert J. Delhommer, Sr. Bob's TV P.O. Box 40 / 212 W. Lafayette St. Maurice, LA 70555 ----- Original Message ----- From: "Intrepid Video Support" <[EMAIL PROTECTED]> To: "Tech List" <[EMAIL PROTECTED]> Sent: Monday, March 08, 2004 12:18 PM Subject: [Techs] 2nd request. PTK169PAAS..Shutsdown. Still working on this, can not figure out why it is shutting down as HV builds. Would a defective vertical section cause this set to shut down? REG B+ is 170 in standby, drops to 162 when I press power..is this normal on this set? Schematic shows Reg B+ <72-A>, Not sure what that means. I've repaired many of these with a splitter, flyback or replacing the parts in the power supply. I've done all this and set still shuts. I've replaced all the caps, the boxed caps in front of the HOT, CR4118(tested OK), U4101, Q4101, Q4401..and all the caps. Checked all the diodes and resistors and can find no problems. I'm running out of time on this one....Does anyone have any idea what I may have missed? Thank you. Jeff Dougherty Intrepid Video TV/VCR 263 S Front St Steelton PA 17113 fax...717-564-4952 www.intrepid-video.com www.tech-repair.net _______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com _______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com
