Russ are you monitoring this if so can you till me where C3418 is. We did what the tip said and the audio came back. We found CX3418 an 470uf @ 50V. Changed that, no help. Why can?t we just leave those diodes disconnected? Audio sounds OK. Thanks Jerry Alpha 21 Electronics 1840 State St. Granite City, IL 62040 618-452-8620 alpha21century1234@xxxxxxxxxxxxx Hoyt's TV <hoytstv@xxxxxxxxxxx> wrote: From Z-Tips bad 18v supply rail at pin 2 of IC 101 & 201 on 9-599, scope it for ripple lift biasing diodes at pin 2 of each IC, if audio comes back may have leaky C3418 filter cap. on 9-520 Russ Hoyt Hoyt's TV Exeter, NH ----- Original Message ----- From: "GERALD GANN" To: Sent: Saturday, February 25, 2006 5:39 PM Subject: [TechAssist] Zenith SE2517P Chassis 9-707 No audio. Need schematic. > Zenith SE2517P Chassis 9-707 No audio. Need schematic. > Would any one have this oldie in PDF by any chance? Caps checked good and > we are getting all the voltages we think we are supposed to get on the > Stereo DEC/Audio Amp 9-599. > > > Jerry > Alpha 21 Electronics > 1840 State St. > Granite City, IL 62040 > 618-452-8620 > alpha21century1234@xxxxxxxxxxxxx > > > ----------------------------------------------------------------------------- > This Email List is accessible to the general public through search > engines. Remove: http://www.tech-assist.org/remove.htm > Set Vacation > mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation > Lost Password: http://www.tech-assist.org and select "Login Problems?". > Email Archives: //www.freelists.org/archives/techassist/ > ----------------------------------------------------------------------------- This Email List is accessible to the general public through search engines. Remove: http://www.tech-assist.org/remove.htm Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/ ----------------------------------------------------------------------------- This Email List is accessible to the general public through search engines. Remove: http://www.tech-assist.org/remove.htm Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/