Panasonic VIERA TH-50PV500E Service Hints page 16

Trouble Shooting
Power LED
Blink
Trouble
LED
6
times
blink
<
:37"/42">
TH-37/42PA50E, PE50B)
S
TH-37/42PV500E,B)
1
Trouble
Mode
and
Defective
Board
Trouble
Mode
Defective Board
(Possibility)
SC
Energy Recovery
SOS
SC, SS,
D,
P Board
(
SC
> SS,
D,
P
)
How
to find
the defective board
^
No (VSUS NG)
^
Power
SW
ON. Disconnect SC2.(*2)
^VSUSCI
)
output
\
Power
SW
ON.
<v
^at
P2's
1
or 2 pin
/
r/SUS output
at
P2's
1
or
before Shutdown ? before
Shutdown
?
Control Pulse
NG)
Disconnect SC20.
Power
SW
ON.
No
<(Then
Power comes
up). ? > |D Boardl
Output
at
D20's 1,17,18,19,20 pin
OK
? (*3)
~^Yes
I
SC
Board]
Ye^Scan
^es
C
Board|
Disconnect
SC2
and SS1
1
.(*2)
Power
SW
ON.
2 pin
^^VSUS
output
at
P2's
1
or 2 pin
>
"
before Shutdown ?
XYes
I
SS
Board]
|P
Boardl
(*1)
VSUS
about
180V
(Accurate voltage
is
described
in
Panel Label
on
the chassis)
(*2)
CAUTION
Before connecting
SC2
or
SS1
1
after these are disconnected,
discharge
is
necessary
to
prevent
potential
shock caused by
VSUS.
(*3)Check
Pin
No.
:
Output
1
:5V(OC)
17, 18, 19,
20 :5V(PULSE)
—need
oscilloscope
Power
Supply and
Protection Circuit
e.g.
42PV500E,B