Panasonic TC-P46G15 power light flashes red 5 times and wont turn on.

SOURCE: red light flashes 10 times - Panasonic TH-42PX6U

hey there! i finally figured it out!! If you have a computer hooked up with the HDMI cable in the back of the TV and the computer is either on screen saver mood or sleep mood then it is trying to make the television go to sleep aswell. So the only way you can have a computer hooked up to the TV is if you use the front HDMI hook up. pretty weird but thats what was wrong with mine. Hopefully that was the problem :):) 

charlie rodriguez

• 152 Answers
• Posted on Dec 14, 2008

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 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: no power but has red light flashing

Thank God for the internet. I had the same problem and I googled it and found this site with this solution. It worked fine. Thank you. Like you said, unplug, hold the power button for 60 seconds and replug and turn on. Worked like a charm. Thanks a bunch.

SOURCE: Panasonic hdtv, TC-P42X1, no picture,

Tries tv unplug,replug it back like about an hour later.The tv will be resetting itself back to the factory setting.Now the tv should be working again.If it still have the same problems.The tv have a power supply board problems.That the board,where the a/c power cord plug into it.Try website like Ebay.com to buy a refurbish power supply board for the replacement.