Question about Panasonic TH-42PD50U 42 in. Plasma EDTV
Red power button flashes on and off, but no picture comes up.
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
I purchased a PZ77U and in November 07. I watched tv last night and worked fine. Turned it on this morning and it would not come on and the red power light is blinking 7 times. Called Panasonic and they will have a repair guy out on tuesday. UGH!!! Here is a link that explains the blinks if you get them.... http://www.avsforum.com/avs-vb/showpost.php?p=13057627&postcount=8421 Hopefully this gets fixed and doesn't happen again. Stupid electronics!!!!!
Posted on Mar 01, 2008
There is a guy over at circuitsquad dot com that fixes these boards. This guy is really good and he only charge $110.00 including free shipping both ways. You can call him at 347-831-6372
Posted on Aug 16, 2012
We have a Panasonic Hi Def TV Model #TH-42PZ77U. We have same problem w/blinking and not picture. Can't use DVD or VCR even as screen is black, but we have 10 blinks, not 7. Is there anything you can suggest? Husband has Alzheimers and I have cancer and we're old, so this is just what I need! It's no longer under warranty but has been very gently used. Would it be cheaper to order part and then ask someone to install or are there any hot buttons, so to speak, to say to Panasonic or Sears (where purchased) to get them to do it at a lower price since there seems to be slew of problems w/these boards.
Posted on Nov 23, 2009
I had the same problem. I called the 'authorized repair shop' and they came out, picked up the TV and fixed it. After it was fixed, it never happened again.
It's still one of the most awesome TV's on the market, so I'm cool with it. Turns out there's a specific board that was built into it that needs to be replaced. Seems to me like they should do a recall on it to have that board repaired, but they didn't because it doesn't doesn't seem to happen to everybody.
Posted on Dec 15, 2008
Panasonic plasma concierge service guy switched board out saying it was the scan board
still took to shop
1 week later tv is back and working great
impressed with panasonic service
had for a few weeks now no problems
Posted on Mar 04, 2008
Bought TH42PZ77U panasonic 1st of nov.07 from sears.
Played 4 weeks. Turned on, no screen, red light flashes 7 times.over two weeks waiting for board to repair.
Played 2 months, same thing.Panasonic told tech. new board
also needed software up date. We'll see.
Posted on Feb 16, 2008
TXNSC1NZTU (SU CARD), TXNSD1NZTU (SD CARD) and TXNSS1NZTU (SS card) ordered on 24 Jan buy BestBuy tech. Hour after Super Super Bowl, automated message indicating unknown delay in delivery of the cards. (Ouch!) Has anyone else with this failure had luck (or not) with this repair?
Posted on Feb 09, 2008
Ditto here. Bought the PZ77U 11/07
today, 2/9/08 blinking light 7 times no picture. Panasonic sending someone out in 3 days "he can/will fix it" is all I got, she seemed to recognize the "7 blinking light" problem....
Posted on Feb 09, 2008
You Guys need to contact a Professional, according to Panasonic Tech Support the problem resides on one of five boards. Its a scan voltage problem.
Posted on Jan 26, 2008
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Posted on Jan 02, 2017
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