Panasonic G20 Series, Руководство по устранению неполадок

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Slide 29
Troubleshooting 5 Blinks Failure (1 of 3)
Cautions: Disconnect the AC Power prior to making any disconnection or connection.
If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few
seconds until the LED turns off.
When taking voltage reading, place the voltmeter probe at the test point, component, or connector’s pin indicated before
connecting the TV to the AC line. This will ensure voltage reading accuracy before the TV shuts down. (Since the TV is
shutting down, expect the voltage to only come up a couple of seconds.)
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
5 SD A SC SS C2
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.
Troubleshooting
Unplug the TV and do a resistance test between the P5V and ground to determine if the P5V is
shorted or not.
P5V not shorted (Only the A and P board are suspected of causing the problem)
If the P5V is not shorted, the possibilities of the SC, C2, and SS boards of being defective are eliminated.
To determine between the P board and the A board, connect the TV, turn the power on, and check to see if the P5V is
present.
If P5V is present, the A board is likely to be defective. If P5V is missing, the P board is defective.
Shorted P5V
If a short is found, with the TV disconnected, start removing the connectors providing P5V one at a time until the source of
the short is detected.