KX-NTV150NE - Panasonic PBX Service Manual (repair manual). Page 10

10

1. Connect Ethernet cable with PoE  or AC Adaptor to Main Board.
2. Turn the multimeter to DCV setting.
3. Measure the voltage between TP20_5V9V  and TP14_GND.
4. Check if the value is DC+5V (+4.75V ~ +5.25V) in case of power

supplied by PoE, or check if the value isDC+9V (+8.1V ~ +9.9V)
in case of power supplied by AC Adaptor.

5. Disconnect Ethernet cable with PoE or AC Adaptor.

Main Board exchange.

1. Check Main Board PCB’A  (J1)Connect.

2. Check  if Main Board PCB'A _U1 is damaged.

3. Check if Sensor board functions normally.

*U1-(SOC, VVTK8112, VATICS)
*J1-(PIN HEADER, T-DPH20SD2GT-C0, DISNT)

Main Board exchange at first.
If trouble is not closed yet, Sensor Board need to exchange too.

J1 

U1