Rob Flinn
Well-known member
Hello
My aging valley dynamite (in the plastic box) has died on one side.
1. Does anyone have a clear readable circuit diagram. I have a copy but the res is so bad I can't properly read the component values or designations.
2. The problem seem sto be that somewhere in the sidechain is locking the VCA control port down to -10v & the meter is permanently showing full GR. U4 TL074 is getting pretty hot & I'm getting -10v on pin 1, & -13.5 on pin 7. I swapped out the TL074, but no joy there.
I pulled the resistor that feeds the control port & it then passes a signal.
Question, I'm guessing that the above proves that the TA101 is still ok ?
Is it possible for the solid state switches to lock in this way when they go bad ?
My aging valley dynamite (in the plastic box) has died on one side.
1. Does anyone have a clear readable circuit diagram. I have a copy but the res is so bad I can't properly read the component values or designations.
2. The problem seem sto be that somewhere in the sidechain is locking the VCA control port down to -10v & the meter is permanently showing full GR. U4 TL074 is getting pretty hot & I'm getting -10v on pin 1, & -13.5 on pin 7. I swapped out the TL074, but no joy there.
I pulled the resistor that feeds the control port & it then passes a signal.
Question, I'm guessing that the above proves that the TA101 is still ok ?
Is it possible for the solid state switches to lock in this way when they go bad ?