go7 cao dead

security0001

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i have a go7-cao that has 128v from the iso transformer and the fuse is good on the chassis. i test the b+ and get .324vdc. should i be checking the voltage regulator or could there be something else? thanks for the help.
 
i am getting 228ohms on the resistor. this voltage regulator is very different then the go7 cbo i am used to. it has the case grounded like the others but it has three legs off it. i assume e/b/c/? what is the fourth?? (it says STR383)
 
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