Hello. Started my Kaiju build. Got some experience with the Beepre and stereomour. I went through the build process and got to the voltage testing for the circuit boards--specifically, the right side, A c4s. I did a 2 voltages tests with proper IA and OA voltages measured 530/300--the leds glowed, no problems etc. I adjusted the pot to 175vdc. On a third power up, maybe a minute into the warmup, there was a dramatic "pop"-R1 resistor blew (see pics). I am a little stumped and would like to get some input on how to proceed. I am assuming that the R1 resistor and adjacent PM transistor needs to be replaced. I guess the board should be replaced and just build a new one. Thanks.