Let me try to summarize what I have been saying like this. The "prot_e_w_vert" line monitors three circuits via transistor 7041, vertical deflection, HEW, and horizontal deflection. A failure in any of these circuits results in 7041 turning on and pulling pin 11 of the microprocessor low, leading the microprocessor to shut the television down. The beam limiter circuit is tied to pin 50 of integrated circuit 7150 and performs its function by shutting off horizontal drive. I really believe these shutdown circuits aren't as daunting as they appear to be. Given a little experience on these products, I think you will be able to work through a shutdown problem in a D7 chassis in short order.
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