There are 2 versions of the DS31650. Chassis 31650-00 uses a switch mode PS and is found in Sams 3967. Chassis 31650-02/03/04 uses a linear PS with a STR30130 and is found in Sams 3956. They are totally different. Both versions have a ripple filter Q491 that can affect the audio but I am not sure if that is your only problem. It sounds like shutdown is your main (first) problem. Let me know if I can help. John. John Mielke Main TV 636 main St. Longmont, Co phone 303 776 6955 fax 303 776 0792 maintv2004@xxxxxxxxxxx ----- Original Message ----- From: <gulftech@xxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Monday, October 18, 2004 2:20 PM Subject: [TechAssist] Sanyo DS31650, Dead after storm > This unit came in dead after storm. > > I jumpered the power relay. Set comes up with picture, but no sound. > Pressing power brings up OSD, but no sound, and clicks off in a few > seconds. During that time before it clicks off, I can change the > channel. > > I suspect the uP, IC801, but thought I would see if others have run into > this one. Set was given to the shop, but I sure you use it to sell and > make a buck. Any suggestions would be appreciated. Of course I have no > schematic. > > TIA, > > > Ken Smith > Gulf Technical Services > 3034 Gulf Breeze Parkway > Gulf Breeze, FL 32563 > 850-934-8324 (Voice), 850-932-0819 (fax) > > -------------------------------------------------------------------------- --- > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > //www.freelists.org/archives/techassist/ > ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/