JL 500/1 (V1) Q507 no gate drive

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
That’s what’s strange, I had been using a MUR1620 with a bad section (only one good diode) for testing and that worked. I just bent the leg for the bad diode out of the way, so it wasn’t connected. So I put a brand new one in and it fried. Not sure what to make of that. With a single diode it came online like a champ and I was actually able to null out the speaker terminals with the offset pot.
 
I thought that I saw the 1606 as a 600v as well but the datasheet I have here says 400. Did you probe the input to the rectifier to see the actual swing of the transformer output?Remember that it has to withstand the entire peak -peak voltage.

I think that 400v was sufficient but you should confirm.
 

Attachments

  • SF1606G-SF1601G SERIES_H1511-1115511.pdf
    390.8 KB · Views: 29
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.