My sony the wega, does not want to switch on. The timer light just keeps blinking
Since the set appears to "recover", it suggests either a poor solder connection or bad cap somewhere in the power supply. The 7 blinks indicate the problem circuit is in the horizontal area. Check the regulator (STRxxxx) IC in the power supply. If you do not have experience working with TVs, please refer this repair to a shop. The regulator IC costs around $25.
Dan
3 Press TV POWER on the TV. (The TV will turn itself off, then back
on.)
4 Release RESET.
OK
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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
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