I lifted up CR31 diode ( circled in blue ) and the Comp fail light when OFF , why is that ? the logic gate U7A output didn't change at all , it stayed at +15 volts , so the U7A input went floating but how when there is a R110 68K pull down resistor
Even when CR31 diode is soldered in , the Logic gate U7A output is still HIGH +15 volts , so i have no idea how the Comp Fail light went OFF from me lifting up CR31 diode
Audioguru said he has never seen and you never use pull down resistor using CMOS gates , so there you go audioguru you have seen you first pull down resistor on a CMOS input
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ARID output pin#14 switches from +15volts to -13 volts back to +15 volts , does this in 3 steps less that 30 seconds when you flip a switch
ARID output pin#14 goes to the buss line that has all those diodes and transistors hooked up to , why? and what does this buss line do?
Why did they buss it like this or have a buss line?