Secondary Power drops when output plug inserted.
Carnetix Support Forum blows.
I have had poor performance with this product.
First of all the manual does not clearly explain that if I have the JP5 set to PC, does another jumper have to be on JP6 or not to use APCI. The diagram shows a jumper on it (red rectangle) but elsewhere it's implied that wires attached directly to JP6 and then to the PC mainboard power is redundant to using the green and white wires from the output wire harness. No option works; jumper on, jumper off, or wires directly to JP6. I have not tried USB APCI.
I could only get the computer to start by directly jumping the PC mainboard.
Now I was using it today and the Lilliput monitor power stopped (screen went black).
I have 18.5V Primary and 12V secondary.
The primary reads as it should at the plug that goes into the computer and the pins off the P2140.
If the output plug is not inserted there is approx 12V measured at the plug (measured from the pins that directly come out of the circuit board). As soon as I plug in the output plug the power drops to 0.65V; that's with no load; no power connected to monitor nor computer. Even if I plug this into a computer I get 18.5V primary but 0.65 secondary.
Board defective ???