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You MUST change that 100MFD cap. It likely CAUSED this problem. I did not realize which chassis this was--till someone mentioned it. IT WILL cause a loss of regulation AND then blow the H-out, along with blowing that 100 ohm resistor someone spoke about and also kill a couple of medium power transistors, Q-402 and Q-403, in the standby supply. I have fixed MANY of these over the decades. Once fixed--they are not too bad of a set. The way this supply works is..in STANDBY..the 30130 is forced to run at only 16 volts or so, by those 2 transistors and then at power on--it goes to full output. DO NOT forget to check and see if there is another TO-220 transistor close to this chip, it is sometimes used as a "sub regulator" and usually dies if the 30130 goes.
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