I found something! A blown rail fuse! It has blown but it's very hard to see. I will replace both of them and see what happens. Should have measured this in the first place 🙂
Marantz fixed! Thank you!
It was the rail fuse after all! Made the idle current adjustments and all OK. I think it was all down to this fuse in the first place which explained the low positive voltage at the rectifier.
In looking at this amp I have learned a lot about recitifiers and also improved my circuit schematic reading ability.
Thank you to all on here
It was the rail fuse after all! Made the idle current adjustments and all OK. I think it was all down to this fuse in the first place which explained the low positive voltage at the rectifier.
In looking at this amp I have learned a lot about recitifiers and also improved my circuit schematic reading ability.
Thank you to all on here
Thanks for the update 🙂 Fuses don't always fail with a bang, sometimes the wire just parts away from the endcap.
@Mooly
could you please remind me when me and you are going to get the DIYAUDIO bonus for tele repairing a number of amps ????
xxaxaxaxxxa
could you please remind me when me and you are going to get the DIYAUDIO bonus for tele repairing a number of amps ????
xxaxaxaxxxa
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