Dear Peter, Andy, Adrian and Thorsten and all others involved in UCApps and Midiphy,
thank you for this amazing project.
I am almost done with the SeqV4+ and it was a great experience. I enjoyed the two instructional videos from Peter more than any TV show [great music by the way], the hardware design is fantastic and I can’t wait until I finally can use it in combination with the legendary software from T.K..
Going through the building process made me very happy, so thank you for that.
Unfortunately I have still two problems before officially asking for my serial number ; )
My knowledge of electronics is quite limited, so I am very thankful for any help.
I searched through this topic and related. So I hope, that I don't post problem descriptions, that already existing close by.
1. Left OLED display is not working properly
I probably broke the display itself while soldering, but before spending the money on a new display, I wondered if anyone could spot an obvious mistake.
While powering SeqV4 the content is displayed fine
but then while running, the right half of the display stays completely "filled".
The left half is otherwise working as expected.
I checked:
1) On the core on J15_S the displays are jumpered to 3.3V and R33D on the core is 560R as suggested by Peter.
2) I swapped the display cables on the core (J15A/B). The defective display behaviour is unchanged.
3) I swapped the cables from the working display and defective display. The defective display behaviour is unchanged.
4) I checked the shielding against the capacitor as suggested by CJ55. It was already nicely shielded on the OLED PCB with a strip of extra tape. Thanks for that : )
5) I double checked the soldering points on the OLED connector.
I probably damaged the OLED while soldering, right? The only thing that makes me doubt is, that the display seems to work while powering up SeqV4.
2. LED matrix does not work anymore
After I finished the Le-Mec boards I tested the LED Matrix through Midibox NG and CC16 and it worked fine. Now that I have assembled the PCBs into the case, the LED Matrix unfortunately does not work anymore. Neither with SEQV4 nor Midibox NG - no life sign. When I test the LED Matrix with a Multimeter as suggested by Peter in the video, on the top right pin and the 4th from the left pin, the corresponding LED lights up. What could be the next meaningful component to test?
Thank you for your time.
Best Regards,
Manu