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Ah, the dreaded 7 blinks of death. Try this solution first (click here). If the link doesn't work then paste this link into your browser address bar. http://www.fixya.com/support/r8558239-lcd_or_plasma_tv_or_monitor_turn_or_stay
7 blinks: Driver SOS 2 SU / SD / SS Boards (SC floating voltage area). This sort of problem can only be undertaken by an authorised Panasonic service centre - get a quote on all the likely cost(s) involved, then make a decision afterwards - whether to go ahead or not.
9.2. Power LED Blinking timing chart 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. 26 TH-42PZ77U: There are different patterns for blinking light... 10 times indicate DG board problem - SUB 5V SOS, MAIN 3.3V SOS, DTV 9V SOS and Tuner Power SOS.
Ur power supply board is dead, u know basic electronics’ and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your tv power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
seven blinks on this model is the SC board. it will need a new SC board and the software update for the new board. usually only authorized servicers have the software need to do the upgrade. but if you were to contact panasonic then they might be able to have it fixed for you for free since this was a defect in manufacturing. of course this depends on how long you have had the tv.
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