THE PROBLEM IS PROBABLY BEING CAUSED BY A SHORTED POWER REGULATOR (MX084 ) OR AN OPEN FUSEABLE RESISTOR IN THE POPWER SUPPLY. USUALLY A JOB FOR A SKILLED SONY TECHNICIAN.
Check secondary voltages and horizontal out put section, and check smps and all the voltages and line out put transformer section...
SOURCE: standby light stays on
When attempting to turn on the set, the standby light should blink for a a while then stop once the picture comes on. If a problem is detected internally, the standby light should blink in a repeated pattern. Please count the number of blinks that are repeating and we should be able to help.
Usually answered in minutes!