I have lost power on pin 4 (Power +) of the VE Direct port. I still have data coming through but no power. Is there any way to test or repair this further or does it mean replacement a unit is required?
asked
MPPT 75/15 VE Direct Voltage Fault
Any ideas on this please?
Might there be an internal schematic available so I can better understand where this small voltage comes from?
A small 5V regulator is followed by a 10Ω resistor, so not too much current otherwise the Voltage drops at the output with increasing current.
The 5V pin is intended to drive a digital isolator at the other end of the VE.Direct cable or within the VE.Direct USB cable, so not much current is ever intended in the design.
