Jeff, I have heard of one shop that had an ultrasonic cleaner to clean those type switches with. Supposedly worked fine for them.
Frank -- HQ Electronics 218 N 1st St Shelton WA 98584 360-426-3336 (Shared phone and fax) http://www.hqelec.com ----- Original Message ----- From: "Intrepid Video Support" <[EMAIL PROTECTED]> To: "ELECTRONICS PROFESSIONALS LIST" <[EMAIL PROTECTED]> Sent: Thursday, February 12, 2004 5:34 PM Subject: Re: [Techs]Fixed** Pioneer Audio SX1010,intermittent Phono output..was... tuner audio > Narrowed problem to the MIC switch. Removed a third time and used a Dremel like tool with a wire brush to > clean the contacts.. > This time it worked > > 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 > > ----- Original Message ----- > From: "Intrepid Video Support" <[EMAIL PROTECTED]> > To: "ELECTRONICS PROFESSIONALS LIST" <[EMAIL PROTECTED]> > Sent: Thursday, February 05, 2004 1:08 PM > Subject: [Techs] Pioneer Audio SX1010,intermittent Phono output..was... tuner audio > > > Problem below fixed by replacing the outputs, bottom board..2 2sd313 and 1 2sb507 > Now, both phono outputs are intermittent and not consistent. Tapping, flexing boards, wires and I can not > generalize the problem. I remove the two switches, cleaned them and no help. > When it goes off, the relay clicks and anywhere from a second to a few seconds clicks back on. > Tuner plays consistently..thanks to ABL Elect and others for their responses on that problem. > 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 > > ----- Original Message ----- > From: "Intrepid Video Support" <[EMAIL PROTECTED]> > To: "Tech List" <[EMAIL PROTECTED]> > Sent: Tuesday, February 03, 2004 12:59 PM > Subject: [Techs] Pioneer Audio SX1010, intermittent tuner audio > > > Unit came in with intermittent tuner audio. Other inputs are fine. > I traced the problem to a PCB on the bottom of unit, right beside the AGC fuse board. > PCB has an intermittent connection somewhere, flexing the board and I can make the problem come and go. > I've been all over this PCB with a magnifier, soldering iron, cleaning it with print-kote solvent. I've > pulled the large capacitors, cleaned the glue from under them, remove the three transistors on the heat > sink, cleaned the terminals and replaced them. I checked the traces near the screws for the heat sink, > especially. I did find one solder pad with a bad connection and replaced that. I checked voltages while > unit acted up and didn't find any missing. Moving each wire one each terminal does not affect the problem, > so I am convinced the problem is on this board. I shine a bright light and checked with magnifier and am > stumped. Has anyone ran into this problem? > Thank you. > > > _______________________________________________ > 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 > _______________________________________________ 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
