Panasonic TC-L42D30

50
Seven Blinks of the power LED (TC-L37DT30)
Start
After power on, is
there 16V(F15V) at pin
4, 5 and 6 of
connector P2 before
shutdown?
Is there
SUB3.3V at pin
7 of connector
A10 before
shutdown?
yes
yes
Replace the A board
Disconnect
connector A10 and
using a jumper wire,
momentarily connect
pin 8 to pin 10 of the
socket.
Does the
unit power
up?
Replace the KA
board.
Replace
A board.
No
No
Yes
Jumper across
pins 8 and 10 to
simulate the
power switch
when connector
A10 is disconnected