accuphase P300 d16 diode

dave collins

New Member
On board 720 protection I found a T 18 diode in place of the diode in the parts list which is a rectifier diode 1S2091 BL. My lights are flashing and the voltage going to the relay is the same on the positive and neg terminals so the relay won't close . Should I use the zener or the rectifier at D16? The schematic says rectifier.
 
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D16 is the flyback diode, protects Q8 from the pulse of the relay coil collapsing. It's just a regular diode, 1N400x is fine.
 
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