Hello,
If there is a problem first and easiest thing to do is check if there are any warnings given by leds that Ian did put there for a reason.
Don't know if this is an error that could be caused by bad solder joint at the cap connection. Normally the voltage will be divided so each cap will get the same voltage.
So what kind of iron did you use for the supercaps?
Greetings Eduard
If there is a problem first and easiest thing to do is check if there are any warnings given by leds that Ian did put there for a reason.
Don't know if this is an error that could be caused by bad solder joint at the cap connection. Normally the voltage will be divided so each cap will get the same voltage.
So what kind of iron did you use for the supercaps?
Greetings Eduard
Thanks for pointing it out. Unfortunately i'm unable to get the solder out so I may have to buy a new board and capacitors? The streamer is working now, should i shut it down till i fix this?
I'm using this one that gabster suggested in his video. Is there a better alternative?
I'm also using this flux
Hello,
Most of the time desoldering is harder than soldering. Maybe it can only be done with a desoldering station but that one will need to have the same power rating.
I never used flux before but i know during desoldering you need to add solder to get it flowing.
Maybe try reflowing first to check if the problem is a bad joint.
Usually with this kind of soldering job everything should be perfect to get a perfect joint. I have never used flux before. But what i do is take care the areas to be soldered are clean and always use solder containing lead.
Greetings Eduard
P.s Ian or one of the expert could tell you if it is a bad joint causing this problem
Most of the time desoldering is harder than soldering. Maybe it can only be done with a desoldering station but that one will need to have the same power rating.
I never used flux before but i know during desoldering you need to add solder to get it flowing.
Maybe try reflowing first to check if the problem is a bad joint.
Usually with this kind of soldering job everything should be perfect to get a perfect joint. I have never used flux before. But what i do is take care the areas to be soldered are clean and always use solder containing lead.
Greetings Eduard
P.s Ian or one of the expert could tell you if it is a bad joint causing this problem
The screen is a Waveshare 7.9" HDMI LCD, the viewing angles are atrocious but it was cheap. It's powered from the Pi USB. Software is the Touch Panel plug-in from GVolt included with Volumio ( use a mirror, the standard repo is broken), and configured as described on the Waveshare wiki. I do need a better solution for the HDMI cable.
There have been a few remarks made about isolating the dirty Pi in a separate enclosure.
Until 2022 is was running this stack with a Beaglebone Black and Soekris R2R DAC where the DAC is shielded from the BBB by an aluminium divider.
Power supply are individual transformers so the only real electrical connection was I2S although that was even isolated.
End of 2022 i bought a Lyngdorf TDAI-1120 which needs SPDIF so I did a quick and dirty change making an SPDIF output from the BBB but this is not isolated.
Here the new IanCanada set will come in to replace it all .. will still divide the dirty and celan side using a ribbon cable to pass the divider.
Maybe my design can be inspiration to others .. enjoy
I will post the final build with the IanCanada parts but it will take 1-2 months.
Schematic:
Hardware:
I2S Isolator IL715: for reducing EMI is also added a ferrite core.
Until 2022 is was running this stack with a Beaglebone Black and Soekris R2R DAC where the DAC is shielded from the BBB by an aluminium divider.
Power supply are individual transformers so the only real electrical connection was I2S although that was even isolated.
End of 2022 i bought a Lyngdorf TDAI-1120 which needs SPDIF so I did a quick and dirty change making an SPDIF output from the BBB but this is not isolated.
Here the new IanCanada set will come in to replace it all .. will still divide the dirty and celan side using a ribbon cable to pass the divider.
Maybe my design can be inspiration to others .. enjoy
I will post the final build with the IanCanada parts but it will take 1-2 months.
Schematic:
Hardware:
I2S Isolator IL715: for reducing EMI is also added a ferrite core.
Last edited:
@eduard could you give some info where can I get updates about it? Is there a thread on this forum or somewehere else? Thank you!
can be repaired, use a good soldering iron (at least 80 watts) with a fairly large tip, add a small amount of solder to the tip and then let it flow again, the outputs of the capasitors are quite large so it will take some time to melt the tin again.
It is best to first practice soldering with the same type of connection so that you get the hang of it.
note, you shouldn't do this too often because then things will really break.
Hi,
a quick question regarding the J4 connector on the FiFoPiQ7 for the MonitorPi connection. The documentation states it is a four wire connector but I only received a cable with four PH2.0mm pin connectors on both sides but with only two wires attached. Is it the right cable or do I need to purchase the four wire cable?
a quick question regarding the J4 connector on the FiFoPiQ7 for the MonitorPi connection. The documentation states it is a four wire connector but I only received a cable with four PH2.0mm pin connectors on both sides but with only two wires attached. Is it the right cable or do I need to purchase the four wire cable?
Hello ,
Recently there was some information about getting the dirty Rpi outside of your audio gear. There was a list of needed parts stationpi smt needed but not available anymore in France.
Use stationpi pro instead?
It is a shame that there are so many boards available. Why not reduce the number of boards.
Someone please open a thread about a set up that uses an external RPI and a hdmi connection to the rest of the gear. That gear will be connected to a DDDAC, the only true diy audiophile dac on the planet.
Greetings Eduard
Recently there was some information about getting the dirty Rpi outside of your audio gear. There was a list of needed parts stationpi smt needed but not available anymore in France.
Use stationpi pro instead?
It is a shame that there are so many boards available. Why not reduce the number of boards.
Someone please open a thread about a set up that uses an external RPI and a hdmi connection to the rest of the gear. That gear will be connected to a DDDAC, the only true diy audiophile dac on the planet.
Greetings Eduard
Any stationpi can be used for that but you don’t have to use it either as just put the Pi into a case that is sold on amazon if you like.
i would focus on building your system outside of the DDDAC tower you made to prove it all works then integrate it…….just a suggestion as I don’t feel you have made any of Ian modules work? Maybe I am wrong…..
i would focus on building your system outside of the DDDAC tower you made to prove it all works then integrate it…….just a suggestion as I don’t feel you have made any of Ian modules work? Maybe I am wrong…..
No worries. The two wires are just for sending FifoPi information to MonitorPiPro. The other two wires are the Rxd and Vcc, which are not used for this application.
Ian
This is great news and help reduce the reqmnts for a clean RPi PSU. I haven’t wandered into HDMI connections yet, but now more possibilities.