Last update: 2012/04/25
19:08
control_surface_troubleshooting http://www.midibox.org/dokuwiki/doku.php?id=control_surface_troubleshooting
http://www.midibox.org/dokuwiki/
Printed on 2020/11/16 14:13
LED’s → Check all the LED’s on the CS PCB. This is necessary to check that they are all oriented
1.
appropriately and functioning as expected. To do this you can built yourself a cable that you
connect to the LED connector on the Base PCB.
Switch Diodes → Use your Multimeter to check that all the diodes are working properly. You just
2.
need to select the diod test function on your multimeter. You need to connect the anode to the
plus (red) lead and the cathode to the minus (black) lead. The multimeter will show you the
forward current. Even the cheapest Multimeters offer a diod test mode to check switch diodes.
Check also the orientation of the diodes. The black stripe on the diode should match the bar at
the end of the arrow symbol on the CS PCB.
Switches → Check the “routed through” connection on the long sides of the switch. Then Check
3.
that each switch is closing when pressed as expected (short sides of the switches)
Once you have checked the components separately you can continue with testing the function and
connection of each component. The following overview tables will guide you through each component
to be verified:
LED Assignment Matrix
Switch Assignment Matrix
Encoder Assignment Matrix
