#1587

Is that electronic parts without the PCB and including the Pi?

#1588

that’s for everything

pi and screen was $90cdn, those two are the big ticket parts

1 Like
#1589

Hello! I have some troubles with CS4270 audio codec availability in my country and I’ve been wondering: is it possible to solder everything besides audio in/out section and use shield with external audio interface for some time? Even if not, I would like to check if screen, encoders and buttons work properly, while waiting for CS4270.

1 Like
#1590

I’ve had similar issues with my new shield, having to rewrite different cards several times.

Since last reinstall, I resisted anything NOT offered in Maiden and have been issue free for a week.
In another week I will have another go at ORAC, I suspect that’s where I am going wrong.

Is there something specific in a log that would identify hardware issues?

#1591

I would wait, your gonna want to solder the codec first as there are many smaller parts around which will make it harder to solder, also its not going to work without the codec anyway

#1593

Just curious if you might have had connected to the input jack on the shield? (Am I right in thinking J1 is the input?)

#1594

Just replaced two faulty encoders on my shield. What is up with these Bourns encoders? Seems like they have an abnormally high failure rate.

1 Like
#1595

Just built a Norns shield from a bare pcb. Upon startup it says SUPERCOLLIDER FAIL The screen buttons and encoders all work perfectly.

Connected to it via SSH and expanded the file system. Ran the latest update on the unit as well. (Raspberry pi 3B+)

Any suggestions of where to look to troubleshoot this problem? Thanks so much for your help.

#1596

Codec and Crystal are the usual perpetrators.
Could you snap a picture of that area?

Also a picture of the Pi header would be helpful

:v:

#1597

I had been inspecting the terminals on the codec with a loupe, but I hadn’t been checking the Crystal. It seems that the Crystal must’ve slid a little bit when heat got applied during Hot air soldering of some of the other components.

I will try taking it off and putting it back on in the morning. Thanks for the input :slight_smile:

image
image2080×2981 1.59 MB

#1598

Hi there. I get a supercollider fails at every boot.
I tried to run dmesg | grep snd
I get this:

[ 0.969750] snd-rpi-monome soc:sound: ASoC: CPU DAI (null) not registered - will retry

[ 0.969768] snd-rpi-monome soc:sound: snd_soc_register_card() failed (-517)

[ 1.254470] snd-rpi-monome soc:sound: cs4270-hifi <-> 3f203000.i2s mapping ok

[ 1.265918] #0: snd_rpi_monome

Is this a normal message? Does it mean the DAC is ok? or faulty?

#1599

Codec is looking nice and tidy!

Besides the Crystal I would also tune up C3

@ulleks is this a DIY build or direct from Monome?

Pictures of the board would be great!

#1600

Thanks!

It’s diy. I built two, one is fine, the other has the issue i mentioned

image
image4032×3024 2.25 MB

#1601

@ulleks Crystal is on upside down :alien:

#1602

It’s one that I built myself. Had the pcbs printed.

image
image4032×3024 3.05 MB
image
image4032×3024 2.96 MB
image
image4032×3024 2.85 MB

#1604

ouch. Didn’t even know crystal had a direction. I switched it. Same error. is it possible I fried it?

I still get this. By any chance, this proves the DAC is still ok?

#1605

Those messages are expected. Are you still getting the supercolider error? If you have a multimeter with continuity mode its worth testing you have a good connection between the crystal and the next component (schematic is on the github if you need it). It can be tricky to get the solder flowing around the edges of the crystal to the pads. I like to do the same on the DAC just to be sure.

Its also worth checking the soldering on the Pi header.

#1606

Thanks. Still getting the seupercollider fail. I just tested what you said. all 4 pads of the crystal, all the DAC pins. The PI header. It all makes contract properly.
Not sure what else to check. I replaced the DAC. Is it possible mounting the crystal upside down might have screwed it?
Also, does the message I wrote mean the DAC is working properly?

#1607

I’m not sure, sorry. Those messages would suggest that the DAC is ok but I’m not sure what is going on in the background. Do you see any other ‘4270’ messages in dmesg? I get

[ 1.108359] cs4270 1-0048: 1-0048 supply va not found, using dummy regulator
[ 1.108401] cs4270 1-0048: Linked as a consumer to regulator.0
[ 1.108416] cs4270 1-0048: 1-0048 supply vd not found, using dummy regulator
[ 1.108452] cs4270 1-0048: 1-0048 supply vlc not found, using dummy regulator
[ 1.108982] cs4270 1-0048: found device at i2c address 48
[ 1.108996] cs4270 1-0048: hardware revision 3

#1608

Thanks. I found the issue. Clearly the crystal didn’t like to be placed upside down. I switched the crystals with the working shield, and the supercollider issue followed the crystal. Thanks to everyone as usual!

2 Likes