Question about Televison & Video
The red light at the front keeps flashing but I can't switch the tv on either with the on/off switch at the side or the remote control. I've tried unplugging it from the wall for a few minutes and even over night but still nothing happens
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Posted on Jan 02, 2017
The number of flashes is an error code. Count the number of flash. It looks like one of the boards in your set is failing intermittently. Panasonic codes for a guide as a starting point. Exact board STILL has to be verified;
One Blink: One blink of the power LED indicates a problem in the inverter circuit located on the LCD panel. The inverter board is not to be repaired in the field. Therefore a replacement is required.
Three Blinks: Three blinks of the power LED indicates an over-current or over-voltage condition in one of the DC supplies of the AP board. The AP board is repairable. Therefore the use of an ohmmeter and peak-hold-voltmeter is required to determine the cause of the shutdown. An over-voltage condition is definitely a defect of the AP board. An over-current condition may be due to a short circuit located in the AP board, A board, or the LCD panel.
Five, Seven, or Eight Blinks: The A board is responsible for five, seven or eight blinks of the power LED. The MAIN +3.3V, MAIN +5V, and MAIN +9V sources are all produced on the A board. The detection input pins of the MPU, IC1100, monitor for their presence.
Four or Six Blinks: The AP board is responsible for four or six blinks of the power LED. The DTV9V, and SUB_5V sources are produced on the AP board. The MPU IC1100 monitors for their presence when the unit is connected to AC Power. A short or open circuit on the A board may also be responsible for their absence.
Nine Blinks: Nine blinks of the power LED is due a short circuit in the audio output circuit (s) of the unit. The audio output circuit is located on the A board. Confirm the status of the speakers. If defective, perform a replacement. If ok, replace the A board.
Ten Blinks: Ten blinks of the power LED indicates a malfunction of IC4200, the frame converter. This IC resides on the A board. Therefore ten blinks of the power LED requires the replacement of the A board.
Posted on Feb 11, 2009
SOURCE: RED FLASHING LIGHT TV BLACK
does the television stay on ? these codes or flashing lights and designed to tell you about a problem that the internal computer had detected - a single flash then a double flash is a software upgrade notification -- call support at customer service and they will tell you exactly what the flash is related to then you can find the fix or repair with more information
Posted on Feb 24, 2009
Ok, this rapid blink is caused by a power board failure. The literature states that one or both of the on board capacitors have been disabled because of an abnormal current flow through the circuit components. are you familiar with a multimeter?
Posted on Mar 27, 2009
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