Panasonic G20 Series, Руководство по устранению неполадок

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Troubleshooting 3 Blinks Failure (2 of 2)
Slide 24
Yes
Unplug the TV and check the resistance between
TP9201 on the A board and ground (Chassis).
(Go to the previous slide (Slide 45) to see a
picture showing the location of TP9201.)
No
Is there a
short
circuit ?
Replace the
A board
Unplug connectors A31 and A32, on the
A board. Measure the resistance
between TP9201 and ground (Chassis)
Disconnect the ribbon cable between C1 and C2
and reconnect A31. Measure the resistance
between TP9201 and ground (Chassis)
Yes
No Is there a
short
circuit?
Replace the A
board
Yes
No Is there a
short
circuit?
The problem could be the C1
board or the panel. Proceed to
isolate the panel from the C1
board to determine which is bad.
The problem could be the C2 board or the panel.
Proceed to isolate the panel from the C2 board
to determine which is bad.
Blink
Code
List of boards likely to cause this symptom. (Based on reports and circuit operation).
Most Common 2
nd
3
rd
4
th
5
th
6
th
7
th
3 SC C1 C2 C3 Panel A
This part can possibly cause this error
code, but so far there has not been any
report of this part causing this symptom. This part can possibly cause this
error code and it has been
confirmed to cause this symptom. Technically, this part is not likely to
cause this error code, but it has been
confirmed to cause this symptom.
Disconnect the ribbon cable
between C2 and C3 (C26)
and reconnect A32. Measure
the resistance between
TP9201 and ground
(Chassis)
50” & 54”
42” & 46”
Yes
No
Is there a
short
circuit?
The problem could be the C3
board or the panel. Proceed to
isolate the panel from the C3
board to determine which is bad.
Reconnect
C26 and
disconnect
A32
Follow the procedure on slide 8 to check the Vsus, Vda, and
P15V for short circuit or low resistance reading.
Start Here
Yes
Is there a short
circuit of the Vsus,
Vda, or P15V?
Yes
No
Follow the
procedure on
slides 9~16