Panasonic VIERA 50 Series - Trouble Shooting Power LED Blink Errors (General); LED 2 times blink; LED 3 times blink

Trouble Shooting
LED 2 times blink
Trouble Mode and Defective Board
Trouble Mode Defective Board (Possibility)
12V down SOS P, D, PB Board
(
P
>
D, PB
)
How to find the defective board
Power SW ON.
<
12V output
>
at P25’s (or D25’s) 1 or
2
pin^
before Shutdown ?
Jves
D Board
No
Power SW OFF.
^Disconnect P25 (or D25).'
^P25’s 1 or
2
pin Short
with GND ?
No
Yes
Power SW OFF.
X"
;w OFF.
^Disconnect P5 (or PB5).
^P5's 6 or 7 or
8
pin Shorr^"
) ?
1
with GND ?
Yes
P Board
Power SW OFF.
^Disconnect P25 (or
D25).'-
^D25’s 1 or
2
pin Short
with GND ?
No
PB Board
Xyos
D Board P Board
Power Supply and Protection Circuit
r
+
12V-
Vsus, Vlow stop
Relay OFF
D3
(X
DG
@
•-*
IC4005
<§-5
—
9
LED
3
times blink
Trouble Mode and Defective Board
Trouble Mode Defective Board
3.3V down
SOS
D Board
How
to find the defective board
The defective board is D board ONLY.
Power Supply and Protection Circuit