Question about Panasonic TH-42PZ700U 42 in. Plasma Television

1 Answer

How do I check the 5n2307 fets, SC board on a panasonic TH-42PZ77U Plasma TV.

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  • Sean Nov 05, 2012

    Ok, figured it out, had a bad SC board (7 blinks). Had to remove a whloe bunch of 5N2307 FETS to finally find a bad one. Ordered a new one, installed it and the TV is back online.

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  • Panasonic Master
  • 14,553 Answers

Glad you got it as fet's can be a mystery sometimes.

Posted on Nov 05, 2012

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Posted on Jan 02, 2017

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SOURCE: panasonic th-42pz77u 42ed

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.

Posted on Apr 06, 2008

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SOURCE: Panasonic TH-50PZ Plasma TV won't come on.

what is a UPS?? mines doing it too

Posted on Oct 05, 2008

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SOURCE: power light blinks, but tv won't come on

I have the 52" version of the Viera model. Mine went out last night and started blinking twice over and over again. I suspected overheating so i just went to bed and tried it in the morning with no luck. Then I unplugged it for more than ten minutes and plugged it back in and everything worked fine. I hope this helps.

Posted on Oct 01, 2009

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SOURCE: panasonic th-42pz77u has no picture.power light

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.

Posted on Mar 04, 2010

toolkits
  • 1099 Answers

SOURCE: Panasonic TH-42PZ77U HD Plasma tv has 10 blinking lights

Hello,

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.


Posted on Jun 02, 2010

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The source of the problem is not the sustain board but the main audio/video board. The one that looks like this(part sjtnpa4360s). Verify if the part number matches with the one in your set. I found one on shopjimmy for 35$
http://assets.shopjimmy.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/s/j/sjtnpa4360s.jpg

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Power board


yes your sc board is short you must also do a firmware update

Jun 08, 2010 | Panasonic TH-42PZ77U TV

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Panasonic TH-42PZ77U HD Plasma tv has 10 blinking lights


Hello,

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.


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Panasonic th-42pz77u has no picture.power light (red) flashes 7 times


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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replace sc board and do firmware update or problem will come back!

Oct 24, 2009 | Panasonic TH-42PZ77U TV

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