I have a Sony Wega KV-34HS420 TV that takes several tries to turn on. When I push the power button or remote power on I hear the normal click and the sound comes on for 3-5 seconds but then I hear a second click and the TV shuts itself off before the picture comes on. If I go through this process 3 or 4 times the TV will stay on but it is getting worse and I am guessing that eventually it won't turn on at all. On the tries when it doesn't start the stand-by light is flashing 7 times. Any idea what might cause this?

there are two to three regulator ics in the power supply and they become flakey and cause a mess of problems PART no MCZ3100 on the smps deflection board there are 2 and some times a third on the signal board that for the horizontal drive replacing these will usualy correct this problem there are two to three regulator ics in the power supply and they become flakey and cause a mess of problems PART no MCZ3100 on the smps deflection board there are 2 and some times a third on the signal board that for the horizontal drive replacing these will usualy correct this problem