Again I don't know how far i'll get into this receiver, but the last move i made was to disconnect an 8 wire harness labelled as AWX7068 coming off of the board that has all the rca speaker jacks on it with a few components IC751, IC752, IC801 + a few other x-sistors, filters etc. That harness connects to the mother board and the connecter on mother board is labelled CN403, the wiring is labelled as follows:
FL-(front left...?) FL-(front left...?) GNDAMP-(ground) GNDAMP-(ground) FR-(front right) FR-(front right) Cch-(???) RY-A+B-(spkr A+B) ) RY-A-(spkr A)(this wire is coded with a red stripe) When i disconnect this harness from the mother board, unit will stay on but no audio. Does anyone have a print of the output circuitry that they could Fax, Loan, Sell a copy of or anything to give me a clue. I'm beginning to believe one if the PAC007A outputs is the culprit. I know many of you compare readings between the 2 output circuits and come to a conclusion that way, but i don't know which reading is correct and which is wrong without a print..... I already had this unit totally apart and went over every board with a finer then a fine tooth comb visually to see what pc connects looked like, and i'm not kidding when i say i literally couldn't even find a questionable connection, i just soldered pc connects randomly as i visually checked board and i did do all grounds even though none looked even close to needing.... Any thoughts, ideas, conclusions, crystal balls, fortune tellers, mystics, ANYTHING "joe" ================================ [EMAIL PROTECTED] From: [EMAIL PROTECTED](Joe�Tech2004) Date: Mon, Jun 28, 2004, 3:16pm To: [EMAIL PROTECTED] (ELECTRONICS PROFESSIONALS LIST) Subject: [Techs] Pioneer VSX-D407 receiver Reply�to: [EMAIL PROTECTED] (ELECTRONICS PROFESSIONALS LIST) Pioneer VSX-D407 receiver Turn unit on, display comes on for about 2 seconds with function readout (AM, FM, AUX etc.) then display flashes POWER OFF several times then shuts down. I haven't had much luck with receivers lately especially pioneer. I was wondering if anyone has any tips on this before I decide to get into. Thanks "joe" 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 _______________________________________________ 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
