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I have a Sony rear projection TV model KP53HS10. Back in April I had this problem with the picture blinking intermittently. I posted the thread and received some beneficial help. I ended up getting ripped off for $160. for a service call buy a tech that was recommended by sony. He spent about 15 min, adjusted the G2 screen control. Well it's blinking again and I know the area it's in but not the exact adjustment screw (unless it's labeled). Can you help identify which adjustment screw it is? Is it possible that this fix will work twice?