Will continue to blink after unplugging. will not turn on. have tried troubleshooting, but does not change the blinking red light.
1. Subject
Information of LED Flashing timing chart.
2. Contents
When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the
defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.
Hopefully it eventually stops blinking after unplugging set from the outlet, otherwise claim your Nobel Prize for wireless energy transmission.
SOURCE: Panasonic 32 inch LCD TV will not turn on-red light flashing
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.
SOURCE: Power light blinking 2 times
2 blinks means the unit is having problem with 12 volt supply.
while power on you can check 12DC on power supply before shutdown.if the voltage is constant before shut down I would recommend to replace D board.
SOURCE: The tv wont turn on
hello 2 blinks on this tv means you have this issue below
PT-44LCX65
2 blinks 5 secs you have your lamp cover open
check for this
hope this helps
SOURCE: Panasonic Plasma TV - Model # TH42PX77U does not
This is a difficult question to answer completely. 7 blinks indicates that one of the C boads has failed. however, there are several an SC,SD, SS and SU.
The procedure is to disconnect each of there boards until the blinking is eliminated. The labor charge is usually around 200.00 and the cost of whichever board is bad. Hope this helps.
SOURCE: Panasonic TH-50PZ80U tv, error- 2 blinks
1. Reseating the connector P25 may solve the problem. If it does not.
2. Unplug the unit andd disconnect the connectors A5, A6, and A7. Apply power to the TV. If a White screen comes up and all voltages check normal, replace the P board.
3. If the TV stays on after isolating the SC board, then replace the SC board and the D board; it is likely that the fuse on the D board is blown.
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