I've an old v2 CHI035 High Power Project Board, it's been sitting on the shelf waiting a simple robotic project, looking at the instructions and working with the board I think the dual power supply documentation is in error.
From Appendix D
Removing R9 separates V+ PIC and V+ PWR
Adding a link between Pin 1 and 16 (or 9) restores the required V+ PIC voltage.
While I've made the modifications, checking with a meter, I've still the power up the circuit (I'll be doing this later this evening).
Can anyone with knowledge of the v2 board confirm this?
Remove R9, cut track between pins 8 & 9, add link between pins 1 & 16
best regards,
colin
From Appendix D
When this is done Pin 8 remains connected to both V+ PIC and V+ PWR but Pin 9 (Enable 2) and Pin 16 (Logic Supply Voltage) become isolated although connected to each other.If desired (on V2 boards) the Vs pin (pin 8) can be separated by cutting the track betwen pins 8 and 9 and soldering a new supply to pin 8.
Removing R9 separates V+ PIC and V+ PWR
Adding a link between Pin 1 and 16 (or 9) restores the required V+ PIC voltage.
While I've made the modifications, checking with a meter, I've still the power up the circuit (I'll be doing this later this evening).
Can anyone with knowledge of the v2 board confirm this?
Remove R9, cut track between pins 8 & 9, add link between pins 1 & 16
best regards,
colin