This was the one that wouldn't power up, only relays clicking wildly then nothing when start button pushed. Set was shutting down by the power fail circuit. I found an open resistor at Q460 collector, Q460 was shorted (PCC), D-411 and D-461 shorted. Resoldered flakey joint on D-664 (15V supply to 5V regulator). I believe this is what caused the
15V supply to swing when a load was placed on it. Replaced all bad components and the power fail was still shutting down the set, this time on the power supply side. I forgot to resolder a jumper on the 140V to the HOT. Took care of this and finally the set powered up, but shut back down in a few seconds. Could here crackling noise from CRT neck PCB. Resoldered pin connections on board CRT plug. This fixed this. Now TV works fine. Of course this was added to my Winstips database. Now I have at least one tip for this particular model Sanyo. Thanks for everyones help as always. Later group.- posted
16 years ago