...
Issue ID | Date | Location | Type | Identified issue | Resolution | related for development | affected PCB version | fixed Version |
---|---|---|---|---|---|---|---|---|
1 | 30 Aug. 2022 | BOM - Voices | ERROR | Mouser part number for the trimmer is invalid | Line 180: 652-3296X-1-103RLF | BOM 1.0.0 and 1.0.1 update needed | -- | |
2 | 30. Aug 2022 | BOM - Mainboard | INFO | the 220uF caps on the Mainboard are BI-POLAR - | respect the BOM partnumber | |||
3 | 07 Sep. 2022 | Hardware Board | BUG | there's no Pinout described on the Hardware Board for the OLED - | please read the INFO section in the next table on "OLED selection" carefully | can be improved with better silkscreen information | 1.0 | |
4 | 13 Sep. 2022 | BOM: Voices | INFO | the Mouser BOM shows 32x 240pF C0G capacitors for the Voices - used in the OTA Filter. These are 10% tolerance. | you can change the capacitors to Polypropylene, Silver MICA, Styrene - with 1-2.5% or match good capacitors in this range with an LCR meter (check the data sheets of the meter) | - | - | - |
5 | 13.Sep.2022 | create a Silkscreen for MTA156 Powerheader pinout | 1.0 | |||||
6 | 29.Oct.2022 | Voices | BUG | Sync doesn't work correct | remove on every Voicecard IC3 (TL064). bend Pin 12 of the TL064 outwards, install the IC3 back in the IC socket and solder a resistor leg from Pin12 to Pin10 as shown: | fix the PCB routing | 1.0 | |
7 | 17.Nov.2022 | PSU card | INFO | The DC-DC converter goes very hot after 30minutes, but its within the data sheet specs (65degrees Celsius is the max. operation). The 65 degrees can be reached in Summer or other conditions (few hours operating time) But for longterm stability of the components, I highly recommend the usage of a big cooler | install a 25x25mm cooler with an high of minimum 20mm. I found on tme.eu a product with self adhesive foil and 24.5mm height. the temperature of the DC.DC converter is 51 degrees after an hour on the regulator and 43 degrees on the cooler. TME Part nr. ATS-55250W-C1-R0 | 1.0 |
Important Information before you start assembling:
...