Phil, I'm sending a PDF of the power supply to you. Paul Westcott Kingsway Electronics 1090 kingsway Sudbury,Ontario Canada Phone 705 566-9290 Fax 705 566-5349 ----- Original Message ----- From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Thursday, August 12, 2004 11:58 AM Subject: [TechAssist] RCA F19431, ch# TX809D storm. no power up, has stby volts > Customer claims this went dead after storm. Fuse OK, no signs. The smps > does seem to sound too raspy for my taste, but seems to be working, > here's some voltages: > diodes around the secondary of the smps txfmr: (measurements indicate > output, usually @cathode): > DP61 +10.8v > DP93 +6.74 > DP63 +12.25V > DP97 -15.71V > DP65 +11.53V > HOT coll: +112VDC > IP330 (L7809) input: +10.87V, out: +8.89V > IP301(7806A) in: +10.08V, out: +5.93V > Transistor: TP315 (TO-220) coll: +6.85V B&E: zero V > I/R det eye: one leg: +5.1V > I need some other points to see if there is a Vcc at micro, eeprom,etc. > I did change the 4 pin opto-iso in the PS as a test, no help. > It appears to be in standby, but probably a shorted IC somewhere > dragging a source down. > BTW I removed the tuner incase it was the cause. No help. > Phil Bader > PDF anyone? > Thanks, Phil > > -- > > Philip Bader > Jan Phyl TV Inc. (estab. 1976) > 3420 Recker Hwy. Winter Haven, Fl. 33880 > Fax (863) 299-8821 > email: tjanphyl@xxxxxxxxxxxxxxx > > > > -------------------------------------------------------------------------- --- > 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/