Jeff, Tricky and hard to find, but i have had it where the bad connection is on any of the coils topside where the winding of the coil connects to the pin that goes through the PCB, either cold connection or wire broke loose from pin but just stiff enough to stay close and make intermittent connection. Try playing around coil pins from topside with a diddle stick or alike. GL "joe" ================================== [EMAIL PROTECTED] From: [EMAIL PROTECTED] (Intrepid�Video�Support) Date: Tue, Feb 3, 2004, 12:59pm To: [EMAIL PROTECTED] (Tech List) Subject: [Techs] Pioneer Audio SX1010, intermittent tuner audio Reply�to: [EMAIL PROTECTED] (ELECTRONICS PROFESSIONALS LIST) 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. 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
Joes....Electronics �(Joe:Tech/2004) [EMAIL PROTECTED] Fax::509-479-2283 _______________________________________________ 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
