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Panasonic Manuals
Plasma TV
TH-50PV500E
Service hints
Panasonic VIERA TH-50PV500E Service Hints page 11
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Also See for VIERA TH-50PV500E
:
Operating instructions manual
(48 pages)
,
Service manual
(189 pages)
,
Operating instructions manual
(48 pages)
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Trouble Shooting
Power LED
Blink
Trouble
LED
4 times
blink
<
37",
42"
HD
(37/42PV500E,B)>
Power
Supply and
Protection
Circuit
e.g.
42PV500E,B
Trouble
Mode
and
Defective
Board
Trouble
Mode
Defective
Board
(Possibility)
Power
SOS
=Vsus,
5V
down
P
,
SC, SS,
D,
SC,SU
Board
(
P
>
SC, SS,
D,
SU, SD)
How
to find
the defective
board
No (VSUS NG)
<
Power
SW
ON.
-VSUS(*1)
output
v
at
P2's
1
or
2
pin
x
before
Shutdown
?
Yes
(Vlow
NG)
Disconnect
SC2
and SS1
1
^ower
SW
ON.
VSUS
output
at
P2's
1
or
2
pin
before
Shutdown
?
Connect
SC2
Yes
I
Disconnect
SS11
No
=—
K
P
Board]
No
No
Power
SW
ON.
/5V
output
^at
P25's 7
or
9
pin
'
before
Shutdown
?
*
No(5V
NG)
Yes
P
Board
Power
SW
ON.
:
VSUS
output
at
SC2's
1
or 2
pin
before
Shutdown
?
Yes
|SS Board
I
Disconnect
SU
and
SD
from
SC
(*2).
After
Power
SW
ON,
,
n
Power comes
up
?
|SC
Boardl
"I
Yes
(
SU
br
SD
NG)
Disconnect
SC20
and SS23.
After
Power
SW
ON,
Power
comes
up
?
Yes
(SC
or
SS NG)
No
(D
or
P
or
C
or
Panel
NG)^^
No(PorDNG)
Disconnect
all
of
D31 ~
D34.
Power
SW
OFF.
Disconnect
SC20
(or
D20).(*3)
:
^Disconnect P25
(or
D25).
;
After
Power
SW
ON,
P25's 7
or
9
pin
Short
Power
comes
up ?
with
GND
?
»,
-ZU^Ye
s
(C
or
Panel
NG)
^Yes
|
Keep
Disconnect
SC20
(or
D20).|
|p
Board
|
Connect D31 and
D32.
No
nkrwinprt
m?
No
.(Disconnect
D33
and D34)
,
(Cl °r
><
ed
Q
D3
jJClor
After
Power
SW
ON,
C2
or
X
fter
Power
|
w
0
N,
Panel|
Power comes
up?
Panel
PoW
er
comes
up
?
NG)
NG)
J
In
addition,
"
Yes
(C2
or
Panel
NG)
Disconnect
all
flexible
cables
Connect
SU
to
SC.
Disconnect
SD
from
SC(*2),
After
Power
SW
ON,
Power
comes
up ?
Yes
(Spj^lG)
No
SD
Board
SU
Board
n
No
i
u
Power
SW
OFF.
No
Disconnect
P25
(or
D25)._
D25's
7
or
9
pin
Short
with
GND
?
V
Ye
s
Id Board!
P
Boardl
Yes
(C3
or
C4
or
Panel
NG)
u
with
Panel from
C2
board
<
(ex.
42PX500
CA5-CA8).
After
Power
SW
ON,
Power comes
up
?
'VVes
In
addition,
Connect
D34.
|
p
r
"
JDisconnect
only
D33)
I
After
Power
SW
ON
No
In
addition,
Disconnect
all
flexible
cables
with
Panel from
Cl
board
(ex.
42PX500
CA1-CA4).
:
After
Power
SW
ON,
Power comes
up
?
Tves
No
Check
Point Location
e.g.
42PV500E,B
Panel
Cl Board
C2
Board
<
Connect SC20.
Disconnect
SS23.
After
Power
SW
ON
Power
comes
up
?
Yes
Power comes
up
?
T_
No
No(C4
or
Panel
NG)
x
SS
Board
SC
Board
Yes
(C3
or
Panel
NG)
Power
sw
0FF
'
Disconnect
all
flexible
cables
^with
Panel from
C3
board
(ex.
42PX500 CB5-CB8).
20pin
of IC(*4)
in
C3
Short
with
GND
?
^Yes
Power
SW
OFF.
Disconnect
all
flexible
cables
.with
Panel from
C4
board
s
(ex.
42PX500
CB1-CB4).
"
20pin
of IC(*4)
in
C4
Short
with
GND
?
:su
No
No
T
Yes
|C4 Board|
Panel|
C3
Board
(*1
)
VSUS
about
180V
(Accurate voltage
is
described
in
Panel
Label
on
the chassis)
|
(*2)
Be
careful that
disconnected
SU
or
SD
board
doesn't
touch
SC
board.
(*3)
The
reason
of
disconnect
SC20
is
to
prevent 6 times
SOS
caused by
disconnect
D31-D34.
|
|
Panel
|
(*4)
Check
one
of
the following
1C.
1C
in
C3
board
:
IC7301
or
IC7302
or
IC7303
or
IC7304
1C
in
C4
board
:
IC7401
or
IC7402
or
IC7403
or
IC7404
:sd
ci
C2
sc
SC20
PB
D341_|P33|
SS2
SS11
DG
XV
(PV500B ONLY)
DV
PA
TA
SS
|S
S32|
SS3
C4
C3
~|C32p
SD
MODULE
GS
GK
11
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This manual is also suitable for:
Viera th-42pv500e
Viera th-37pv500e
Viera th-50pv500b
Viera th-42pv500b
Viera th-37pv500b
Viera th-42pa50e
...
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Viera th-37pa50e
Viera th-42pe50b
Viera th-37pe50b
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