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13. Aug.2022Hardware BoardINFO

minimize Slider/Potentiometer malfunctions

Soldering Info

when you install the sliders, DO NOT solder all pins successively, 

solder only one pin at top and bottom and go to the next slider, when you have all installed -  solder the next single pin at each slider.

this have to respected on Potentiometers too.

The Sliders and Potentiometers have lubrication inside which is sensitiv for heat and can be easily damaged (was happen on many Syncussion clones ) 

13. Aug.2022Hardware BoardINFO

OLED Selection and R101/R32 - R100/R102

when you have an OLED with the PINOUT: VCC-GND-SCL-SDA install R100 and R102 (0 Ohm - a bridge) (R32/R101 must be empty)

in case you have an OLED with the PINOUT: GND-VCC-SCL-SDA install R101 and R32 (0 Ohm -a bridge)

13. Aug. 2022All pcbsINFOsome IC Sockets are not in the same direction, it´s an known issue that people install an IC backwards Double and triple check every IC orientation -  maybe 80% of all device malfunctions was occurred by this and can end in a very expensive repair
13. Aug.2022Hardware Board, PSU, MainboardINFOthe LEDs do not work

when you build the device - its important to start with the power supply - here you can test the LED orientation.

never trust the vendor pinout for LEDs. normally is the long LED leg the positive end (anode)

(but some circuits are powered from negative rails and GND is the positive end in this case- just saying - to explain it)

13. Aug. 2022MainboardINFO

solder on the Edgecard holder the pins where you find the white stripe on the PCB - 


you can't install the edge card in different way

MainboardINFOkeep the power Cable on the length as short as possible - that minimize the risk that you accidentally install the PSU card in a voice card

Hardware BoardINFOpay attention to "Pot23 - Volume" (upper right corner) this is the one non-center detent pot.
14.Aug.2022MainboardBUG



BOM Change:

R103, R104, R105 = 330K

R128, R143, R137, R146 = 10K

Image AddedImage Added


Short guide:

Power supply PCB (PSUb) - check the LED orientation and make a note for the Hardware Board

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