Panasonic TC-P50S1, TC-P42S1 blinks Condition Troubleshooting, Wrong diagnostic by the A board

Models: TC-P42X1 TC-P46S1 TC-P50S1 TC-P42S1 TC-P50X1

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10 blinks Condition Troubleshooting

10 blinks Condition Troubleshooting

Since the Sub voltages are only present after the power has been turned on, there will not be a 10 blinks condition at plug-in for the 2009 models.

These 3 conditions can cause the TV to shutdown and the power LED to blink 10 times

1.Missing/Shorted F_STB_15V, SUB9V, SUB5V, and BT30V

2.Wrong diagnostic by the A board

Note: 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.

To troubleshoot a PDP TV that is shutting down and the power LED blinks 10 times:

Find out if 15V is output at pin 7,8,or 9 of connector P6 of the P board. If no voltage is output, the P board may be defective.

If the F_STB_15V voltage is OK, it’s likely that the A board is defective.

Slide #31

Page 31
Image 31
Panasonic TC-P50S1, TC-P42S1, TC-P46S1 blinks Condition Troubleshooting, Missing/Shorted FSTB15V, SUB9V, SUB5V, and BT30V