SOURCE: sony wega model KP-57WS520 wont turn on and
you may want to cheak the lamp its might be burnt out. They can be replaced though so dont buy a new tv.
SOURCE: Sony KP-57WS520: Standby light blinking
thats caused by failed zero cross diodes on the G board. You can get the G board repaired from www.tvrepairworld.com replacement boards are no longer available for that model.
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