All you can do is: Take the plug out of the wall (power) - wait 2hrs, plug in and try again. If it will not work after being cooled and the capacitors drained (which this will do) then it needs repair.
SOURCE: Flashing red light 7 times on our panasonic th-42pz700u
hello you have what you call a "shut down circut" it is for safety and when one of the internal boards gets shorted or is not working properly, service doc reads as follows
7 Blinks SOS: Pin 93 of the MPU IC9003 monitors the status of the SC, SU, SD board. During normal operation, the photo-coupler PC6480 outputs a low to pin 93. If the SC, SU, or SD board becomes defective, a high is provided to pin 93. As a result, the unit shuts down and the power LED blinks 7 times
thiera blinking 7 times is cuase by a fualt in sc,su,sd boards
10th generation plasma service manual info
SOURCE: Panasonic TH-42PZ700U Won't Turn ON
ITS GOT TO DO WITH THE INSIDE OF THE TV 1 OF THE PWER BOARDS ARE BAD
SOURCE: Panasonic TH-42PZ700U Blinking Light Of Death
Panasonic sent a repairman out with the correct part for free, even though the unit was out of warranty. Call 800-524-1448 1 or 800-211-7262
SOURCE: My Panasonic TH-42PZ700U 42in. TV doesn't turn on
Power supply board have dead capacitors.U know how to solders?Buy these capacitors to replaced them to have power back.Or u can buy a whole power supply board for the replacement at these websites Shopjimmy.com,Ebay.com for refurbish power suppply board.
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