I replaced the tuner and the sound returned. This set has PIP with two tuners. The Sony part # for the correct tuner in this repair is 8-598-542-20. If you look at the SM for this set, the L & R audio comes directly out of the tuner. I tried just replacing IC02 in the tuner, but that did not work. Kevin Wilks Kevin's TV Repair Penticton BC Canada kevintv@xxxxxxx -----Original Message----- From: techassist-bounce@xxxxxxxxxxxxx [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Electric Medic Sent: Monday, September 05, 2005 1:26 AM To: techassist@xxxxxxxxxxxxx Subject: [TechAssist] Re: Sony KV-27FV16, BA5 chassis, need service manual. Kevin: Replace the tuner. Or at least sub it. I have seen the tuner cause no audio even in the video mode on Sony's. Perry Bower Electric Medic "It's Cheaper to Keep Her" http://www.electricmedic.com -----Original Message----- From: techassist-bounce@xxxxxxxxxxxxx [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Kevin's TV Repair Sent: Monday, September 05, 2005 4:04 AM To: techassist@xxxxxxxxxxxxx Subject: [TechAssist] Sony KV-27FV16, BA5 chassis, need service manual. This 5 year old Sony has no audio on tuner or video 1. I input a signal into pins 7, 8, 10, and 11 of the audio amplifier IC402 (TDA8580) and got sound on the speakers. I also confirmed a B+ of 24 volts going to the audio amp at pins 3 and 15. I am suspecting the jungle IC, but need the SM to confirm. Thanks. Kevin Wilks Kevin's TV Repair Penticton BC Canada kevintv@xxxxxxx ------------------------------------------------------------------------ ---- - 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/