Actually, For Sony I use transistors from NESCO and B&D, and the NESCO Sony PS kit. 100% successful repairs on power supplies with these and zero callbacks. I am sure to use all the parts possible from the kit I can, to insure reliability. Usually you end up with a few resistors that are left over, and be sure of locations and values of resistors when you replace them. Location # and the number on the parts sheet do not always match in the NESCO kit. Frank Dr. Digital ----- Original Message ----- From: "Mark Wentowski" <[EMAIL PROTECTED]> To: "ELECTRONICS PROFESSIONALS LIST" <[EMAIL PROTECTED]> Sent: Friday, May 21, 2004 9:28 PM Subject: RE: [Techs] Sony kv32s26 regulators keep on blowing
> Use OEM replacement parts or be damned! > > And that supply is a push-pull circuit that can easily be serviced stand > alone. I usually put a 100 watt bulb on the +135V output and bring the input > voltage up slowly with an isolated variac. Connect your scope to monitor the > differential as if you were troubleshooting audio. At 20 to 25 AC volts > input the oscillator should start and regulation should began. At 45 to 60 > volts AC the supply can provide full output. > > Mark Wentowski > Perry Hill Electronics > 3836 Harrison Rd. > Montgomery AL 36109 > phone: (334)279-5622 > fax: (334)273-9050 > [EMAIL PROTECTED] > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of mgodar > Sent: Friday, May 21, 2004 6:01 PM > To: [EMAIL PROTECTED] > Subject: [Techs] Sony kv32s26 regulators keep on blowing > > > Hello This set has repeated Q601 and 602 shorting out. Originally the HOT > was shorted. It is not shorting out presently. Checked related components > r616 ,6117 d 603.repaired connections on main board and checked for others. > Replaced flyback > > This is the set with the separate power supply board on right side. > > This is the second set we have seen with this problem. First set is sitting > in the junk pile. Any advice would be appreciated > Thx Mike > > GODAR Electronics > TV service DIV > 339 North Gilbert rd > Gilbert AZ 85234 > (480)892-8207 > > > > _______________________________________________ > 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 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.689 / Virus Database: 450 - Release Date: 5/21/04 _______________________________________________ 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
