Panasonic GP6DU - Power LED Blinks 3 Times

Power LED blinks 3 Times
No
Yes
No Yes
Is 12V present on
pin 1 of connector
P25 on the “P”
board?
Replace the D
board
Is 5V present
on pin 5 of
connector P25
on the “P”
board?
P board
D and Z boards
P board
Replace the P
board
100