2. No Voltage on 3.3V output
3. No Voltage on 5V output
8 Routerboard does not power on
Check for 3.3V output
on L1
Measure if there is no
short between GND and L1
Change C8Measure L1 resistance
Measure resistance on R2
(26.1k Ohms) and R3 (10k Ohms)
Change L1
Change U1 Change R2, R3
ShortNo short
>1 Ohm<1 Ohm
Not OK
OK
Check for 5.0V output
on L2
Measure if there is no
short between GND and L2
Change C42Measure L2 resistance
Measure resistance on R6
(44.2k Ohms) and R8 (10k Ohms)
Change L2
Change U1 Change R6, R8
ShortNo short
>1 Ohm<1 Ohm
Not OK
OK