Not worried about the F35750 at present, what I need is help on a philips 50P8341A, proj. TV. Symptom: intermittent no video or audio when turned on. Replaced the Focus/G2 block, which apparently causes problems of this nature. Learned from posts at http://www.freelists.org/archives/techassist/10-2004/msg00953.html. G2 is monitored and if incorrect will disable video and sound? Initially changed the upright Daugher PCB located on the left, which generally caused problems, but subbed out with a known good one, and still the same symptom, it's not the Daughter PCB. The archive address suggests a Kit for the power PCB, but HV, sweep, etc, is OK, and don't think this modification will do much good, they want 30 dollars for the Kit. If someone can help me with this problem which I'm sure is a common problem with this unit I'd appreciate it: Chassis PTV 915. Thanks --- TeleramaTV@xxxxxxxxxxx wrote: From: "Telerama" <TeleramaTV@xxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Subject: [TA-A] Re: RCA F35750ST (CTC169BG5) SHUT DOWN WHEN P1905 CONNECTED to AUDIO PCB Date: Fri, 8 Feb 2008 03:14:22 -0500 Hey Jack, If I remember, aren't those TDA's insulated from the heatsink? Check continuity. I don't know why there is no 901 on the schematic. How about the header location from the supply? Give me a component location right off that J901 on the audio board ----- Original Message ----- From: " jack spencer" <jackson1@xxxxxxxxxxxx> To: "freelists.org " <techassist@xxxxxxxxxxxxx> Sent: Tuesday, February 05, 2008 6:21 PM Subject: [TA-A] RCA F35750ST (CTC169BG5) SHUT DOWN WHEN P1905 CONNECTED to AUDIO PCB > Dear Forum members: > Shut down when connector P1905 connected to upright Audio PCB. > 4 pin plug, B+ and B- OK, no drop in voltage when connected. > Audio outputs replaced (TDA's). what are the signals, or voltages > associated with P1905, in order to troubleshoot or any other helpful > hints? > > Thanks, > Jack > > > > ---------------------------------------------------------------------------- > Netscape. Just the Net You Need. > ------------------------------------------------------------------------------ > Remove: Send a blank email to techassist-request@xxxxxxxxxxxxx with remove > as subject. > Set Vacation > mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation > Lost Password: http://www.tech-assist.org and select "Login Problems?". > Email Archives: http://www.freelists.org/archives/techassist/ > ------------------------------------------------------------------------------ Remove: Send a blank email to techassist-request@xxxxxxxxxxxxx with remove as subject. Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: http://www.freelists.org/archives/techassist/ _____________________________________________________________ Netscape. Just the Net You Need. ------------------------------------------------------------------------------ Remove: Send a blank email to techassist-request@xxxxxxxxxxxxx with remove as subject. Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: http://www.freelists.org/archives/techassist/