hypex ncore

[robbbby]

Originally Posted by waltzingbear

who was it that said they had the instructions for adjusting the protections? Could you post them. Is it the previously unidentified pot on the amp?

Alan

I remember those posts, it wasn't too long ago, maybe 2 or 3 weeks back.

I'm still curious what that third pot does. The two pots for the input and output dc offset weren't adjusted on mine so i've always wondered what the third was and wondered if it needed to be adjusted as well.

[sherlockth]

Originally Posted by RogerSch

As I only need RCA-XLR cables temporarly until I buy a surround processor with balanced out (maybe the Emotiva XMC-1) I didn't spend too much money on these I bought these one:
Procab CAB701 2x XLR male - 2x RCA male 1.50 meter kopen? | Goedkope | Promo | XLR - RCA

I don't know if this shop also delivers too Greece but you could look for the following cable PROCAB CAB701. Link: ProCab - 701

Originally Posted by ChrisPa

Get some ordinary xlr-f to xlr-m cables

and also get some separate xlr to rca adapters eg.
XGA32 - XCALIBER - ADAPTOR, XLR PLUG TO PHONO PLUG | CPC

Thanks guys, I found cables in two guitar shops where I live that seem of good quality, I will go with one of those.

[dan1502]

I have instructions for adjusting DC offset and output DC level from Hypex and also have instructions on calibrating the over-voltage from someone else (who got them from Hypex) but I will not be doing the last one yet.

Is it better that I pm them?

[jmbulg]

Originally Posted by robbbby

I remember those posts, it wasn't too long ago, maybe 2 or 3 weeks back.

I'm still curious what that third pot does. The two pots for the input and output dc offset weren't adjusted on mine so i've always wondered what the third was and wondered if it needed to be adjusted as well.

It is not the third pot which is used for the protection calibration. I had the same dropout problems and with the help of Hypex got it sorted out.
First DC calibration with pot1 and pot2 as described earlier, then calibration of protection:
I think it is best to contact hypex directly as to avoid any problem of warranty if you do something wrong based on information given here. But basically you need to deconnect completely your ncore (no input, no output, no smps or other supply) and apply 3V DC to the 5-pin programming header of the PCB for a second or so (pin 1-, pin 2+, where pin 1 is the one closest to the red capacitors). For one of the amp is went ok immediately, for the other one I had to try several times (you need to plug in the ncore again and try if it works. If not you need to start again and I did it with slightly different voltage until 3.09V worked).

For the moment, no dropouts anymore (keep fingers crossed)

As for sound:

[dan1502]

Adjustments made and so far so good. I checked the other which was spot on. I think one must've slipped through without being calibrated properly.

[cab]

Seems these miss or uncalibrated modules are becoming more common...These seem to be marketed as plug together and play- not everyone has oscilloscopes and variable voltage power supplies for diagnostics...I hope Hypex keeps their eyes on the road and takes better care of the QC going forward or their brilliant product is going to have a bumpy ride....

[ChrisPa]

Originally Posted by cab

Seems these mis or uncalibrated modules are becoming more common...I hope Hypex keeps their eyes on the road and takes better care of the QC going forward....

More common?

From what I can see, so far only 2 modules are recorded as having problems.

[jmbulg]

Originally Posted by ChrisPa

More common?

From what I can see, so far only 2 modules are recorded as having problems.

Two others at least : hypex ncore

Maybe Hypex could just add a FAQ somewhere with a How To (would avoid to read/search the present thread).

[tms0425]

I had to adjust mine. 15 minutes with a voltmeter. No big deal. Tom

[Julf]

Originally Posted by tms0425

I had to adjust mine. 15 minutes with a voltmeter. No big deal. Tom

This *is * diyaudio after all