BLUE OB-SX POWER SUPPLY MOD

Power supply your MIDIcontrol from the OBSX

This Interface needs DC 5V 130mA

To supply the MIDIcontrol interface with power from your OBSX, please follow figure 1..3:
1. Cut trace below U67 as shown in figure 1 & 2
2. Solder a 10 OHM resistor from U67 Pin16 to the through hole solder point below the trace cut as shown in figure 3.

figure1 figure2 figure3
Figure 2 Figure 3
   
   
   
   
   
   
   
   
   
   
Figure 1    
     

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GREY OB-SX POWER SUPPLY MOD

H28 is connected to H23-27 (all to ground).
So there is no trace to cut.

Desolder H28 from the socket,
make a little room to bend out the connectors pin .
Then solder the 10 OHM resistor between PIN H28 and +5V.
That's it.

OBSX_GREY