No HV?
If your HV is dead then it is probably either resistor R12 near the HV transformer or the HV transformer itself. CHECK THE RESISTOR FIRST since it is much easier and cheaper to replace. Simply unsolder it and see if it has the proper resistance (2.2K Ohms). You will also want to check to see if the over-voltage protection circuit is misadjusted causing it to activate even though the HV is in a tolerable range. If LED (CR2) is lighted, then the over-voltage protection circuit is activated. If it is on then you either have a misadjusted potentiometer or a damaged HV circuit. Mark the initial position of R19 and tweak it a tiny bit to see if the LED turns off. Don’t move it too much or you may damage other parts of the circuit or even your tube if the HV is indeed too high. The catch is that Atari replacement parts are only supplied at the wholesale level to official Atari game distributors. To find out the distributor closest to you so that you can order this part from them, call Atari a
