Mando it is the same as 50UX22BA AP53P/DP Chassis. I just downloaded it from Hitachi. I can send it to you or you can go to Hitachi website and download it. Let me know. Jerry Alpha 21 Electronics Granite City, IL 62040 618-452-8620 alpha21century@xxxxxxxxxxxxx armando guerra <birdie@xxxxxxxxxxxxx> wrote:This tv when powered on, relay clicks once but thats all. No print on this model.The led D903 stays red.No blinkling.No other leds lite up.I think that the power regulator may be bad but I don't have the print to check the voltages.It uses a STRM6511.Can someone give me the voltages on this reg.so that I can check to see if its putting out what it is suppose to.Its been a while but if I remember correctly,pin 5 should read between 10 and 16v if the reg is ok but not sure.Thanks for your help. Mando Birdie's TV & Electronics Casa Grande, AZ ----------------------------------------------------------------------------- This Email List is Public. Remove: http://www.tech-assist.org/remove.htm Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/ ----------------------------------------------------------------------------- This Email List is Public. Remove: http://www.tech-assist.org/remove.htm Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/