After I connected the P10, I unfortunately found that it has a THD OUT
of 1.3% with a THD IN of 1.6%.
The sine wave at the output shows flattened peaks and the falling edge
shows slight distortion.
Resetting the settings, or changing the phase does not change the behavior.
For comparison, I also have a P5. This one works fine. Delivers a THD OUT
of about 0.2% and shows a clean sine wave at the output.
As read in similar threads here on the forum, the regenerator boards
from the P10 will be broken.
I live in Germany, so shipping from the P10 is very expensive and time consuming.
By profession I am an electronics engineer and used to working with
circuit boards. Therefore the question, is it possible to buy the
regenerator boards at PS Audio and exchange them in the P10 itself ?
Visually, the P10 looks absolutely new and it would be a great
pity if I could not use it.
Attached are pictures showing the signals from the P10.
I have two P10s. One needs new regen boards (there are two boards). The bad one can’t maintain voltage out (e.g. 237 in, 215 out), and distortion in of 3.0 could say distortion out of 3.4. Like you, I hope the regen boards are still available.
I suspect that support are overwhelmed with support requests and once they see it’s a 230V version, so not native, they expect the local distributor to suppy support. Sometimes I get excellent support, other times silence.
Edit - sorry I didn’t answer your question. I don’t know how easy it is to change the regen boards, but it can’t be rocket science - just don’t get a belt from the capacitors! Also, be careful of anything that might fall into the unit when the lid is removed.
EDIT - here’s a pic of the boards - the long edges are about 20cms (8")
I think the boards are about £1000 fitted but think you should talk to whoever the distributor is for advice.
I have packed the boards away again as they’re the ones that I’m getting put into my P10. You could get the lid off yours, which if I remember correctly involves undoing the allen bolts at the top of the four corner piers and then lifting the lid off somehow. Good luck.
Hifi2Die4 makes the service and repairs here in Germany.
Following a hint and to make sure, that not only a cable in the P10 has come loose, I carefully opened the lid.
Unfortunately, this immediately showed a dark/burnt spot on a regenerator board. The inside of the lid also shows a black discoloration exactly at this position. Since the regenerator boards are definitely broken, I ordered new ones. Unfortunately they have to be ordered from the USA, which can take 2 to 8 weeks.
Sorry to hear about the P10. Our team usually doesn’t take too long to ship out the new boards once they’re on order so hopefully you’re able to bring the P10 back to life soon.
Hi Dirk,
I’m sure you’ve thought of this, but here it goes anyway. I’ve not seen talk about root cause. Please correct me if I’ve missed something. It wouldn’t be the first time.
The burnt component(s) are the result of a failure not the cause. If you haven’t done some further troubleshooting/root cause analyses you run the risk of cooking the new boards. That would be a crime, punishable by multiple pinches, slaps about the face and neck.
Last year I couldn’t spell ingneer; now I are one!
as already written, I bought the P10 used.
The previous owner obviously did not notice the error and used the P10 for a long time with the error. Therefore, the clearly visible discoloration on the lid.
In different places on the internet you can read that the flattened sine peaks and the bad THD OUT are a clear sign for defective regenerator boards. But what can be the cause for this damage, I could not find out so far. Possibly connected devices with switching power supplies, which cause a more or less strong short circuit depending on the moment of switching on.
Is anyone here aware that other boards or components had to be replaced besides the regenerator boards ?
In any case, I will talk to the service before the boards are replaced. It would be very annoying if they were to break again.
