Bplus U3EX - Manual (Page 6)

USB3.0 Fixture Board User’s Manual
Page 5
FAE2009U3EX_02 ©2009 Bplus Technology
Set Jumper Cap on JP1 2-3 position, IC1 cannot work. Set Jumper Cap on
JP2 1-2 position, IC2 cannot work. Meanwhile, output voltage shows 5V.
Set Jumper Cap on JP1 2-3 position, IC1 cannot work. Set Jumper Cap on
JP2 2-3 position, IC2 can work normally. Meanwhile, output voltage shows
3.3v.
z Voltage test
TP2 is a test point for input voltage 5V. TP3 is a test point for output voltage
Vout. Input voltage can be obtained by measuring TP2 and TP4 (TP1), and
output voltage can be obtained by measuring TP3 and TP4 (TP1).
Vout=5V, test method