Sony KPR-36XBR

[rockhound]

Just bought this at a sale. Brought home, set came on but had contaminated green crt fluid. Changed fluid in the green crt, then powered on and only had blank red raster, weak blue raster and no green raster but has osd when screen controls turned up all the way and no audio and no crosshatch. Left on overnight, picture and sound was good in the morning and played all day. Had problem with bad aft and resoldered aft transformer connections on signal board. Now back to same problem. my 12 volts on the signal board measures 3.7 volts. I'm pretty sure I have a bad cap someplace but need advice from anyone whos had this problem. I'll probably wake up in the morning and everything will be ok until the set is unplugged for a period of time. Neil