Question about Panasonic TH-42PZ77U TV

3 Answers

Tv does not power on

Model number TH-42PZ77U. i hit the power button and it blinks a few times but the screen doesnt power up.

Posted by on

  • 7 more comments 
  • Anonymous May 14, 2008

    a red light flashes but the tv does not turn on

  • hosegp May 26, 2008

    I have what sounds like a similar problem. The screed does not turn on and the red power LED blinks about 5 times, is off for a few seconds, and then starts blinking again.

  • rudyd Jul 01, 2008

    Will not power up, just repeats a 7 flash sequence. Had best buy tech out and he went through steps supplied by panasonic and as soon as the upper buffer board was removed the tv could be turned on. I believe he stated that panasonic would most likely have him replace the board adjoining it which was the x or y convergence.

    This plasma is 6 months old and it was insinuated that the heat loads may be to great and not dissipated fast enough.

    I am fortunate to be under full warranty.

    I have visited many tech sites and this is a very common complaint. Good luck

  • Anonymous Oct 26, 2008

    TV won't come on and the blinking red light ... seven blinks, pause .... seven more.  Yes, customer service will have a service tech call me to make an appointment to come fix it.

  • Anonymous Dec 12, 2008

    My TV is almost exactly 1 yr old. It may be a few weeks over 1 year. The TV just went off suddenly and the power light started blinking. I could hold the power button down on the TV and the TV would make a sound like it was clicking off. Then it would come back on enough to hear the sound for about 2 seconds, no picture and go right back off. We unplugged it but no improvement

  • Anonymous Dec 20, 2008

    tv does not come on power light blinks 7 times goes off then repeats 7 blinks

  • bozinovi Feb 18, 2009

    I have Panasonic TH-42PZ77U plazma TV for a bit more a year now.My TV power button blinks 7 times and then goes off and TV does not turn on. As far as I know Panasonic has 1 year warranty so I am not covered. Where do I ask for help to fix this?

  • bozinovi Feb 18, 2009

    I have Panasonic TH-42PZ77U plazma TV for a bit more a year now.My TV power button blinks 7 times and then goes off and TV does not turn on. As far as I know Panasonic has 1 year warranty so I am not covered. Where do I ask for help to fix this?

  • Anonymous Mar 31, 2014

    TV will not stay on


3 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

If it blinks 7 times, your power supply is shot
If it blinks 10 times, a video board went bad.

Posted on Jul 13, 2008

  • ryman9999 Jul 13, 2008

    before calling customer service at 1-800-332-5368 they told to me unplug the television for 2 minutes then plug it back in and try turning it back on. if it doesn't work call the number above and they'll set up an appointment to send someone to you.


  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Had the same problem, Panasonic service guy said if this unit is exposed to certain sequence of events damage to an internal part could happen.  Do not remember all details, except that he had to replace the part in my TV and update firmware so it would not happen again.  Other family members have the same TV so he was nice enough to update their firmware so it would not happen to their TV’s.  So my understanding is if you have the old firmware you could be unlucky and have this problem, and if you update the firmware before this happens you should be Ok.  The new firmware prevents this unwanted sequence of events from happening.

Posted on Mar 16, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I called Panasonic Canada support today 1800 561 5505 and they sent technician in 3 hours. He needed 30 min to fix the problem, he actually changed the part with used but fixed part from same TV. Now my TV is working properly. My TV is more than a year old but they fixed it under warranty. Great job Panasonic that was really professional.

Posted on Feb 18, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Plasma tv stop and power light just blinks. Try unplugging and waited to cool down. Still just blinks. Model th-42pz77u

Symptoms and red light blinking 10 times shows that DG board is defective in this tv and it is available HERE for $119
These info will help you to decide about get tv repaired or buy new tv.

May 15, 2011 | Panasonic Televison & Video

1 Answer

Panasonic th-42pz77u power light flashes ten times ? no pic or sound

This is referred to as the "10 blinks of death" and is the result of a power supply issue. Contact your local TV repair shop for repair pricing.

Mar 01, 2011 | Panasonic TH-42PZ77U TV

1 Answer

Panasonic model th42pz77u no pic, no sound, blinking red light ten times

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.
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.

Aug 16, 2010 | Panasonic TH-42PZ77U TV

1 Answer

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


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, to buy a whole refurbish power supply board for the replacement.

Jun 02, 2010 | Panasonic TH-42PZ77U TV

1 Answer

TH-42PX60U wont turn on. Blinks 10 times. replaced the power supply board, but the same issue.

What I'm learning is there are several models of Panasonic TV's that have a video card that doesn't play well with HDMI applications and the end result is, you need to call this number and not only make arrangements to replace the bad board,but also this!
Your model doesn't show below,but I'd certinly inquire about the necessity of a "Firmware" update!,,,Panasonic knows FULL WELL they have a HUGE problem here!
Hope this helps!

At I found the listing for the fw update under customer support-important notices

If you own a plasma TV with model and serial number within the range specified below, please contact our toll-free VIERA Concierge hotline service at 1-866-330-0014. A VIERA product expert will arrange an in-home software update for your TV at your convenience.

Model Numbers Serial Number Range


TH-42PZ700U **71250001 ~ **80189999


Jan 28, 2010 | Panasonic TH-42PX60U Television

2 Answers

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.

Dec 24, 2009 | Panasonic TH-42PZ77U TV

1 Answer

TV power light blinks 7 times and won't turn on

your sc bord is shot replace board and do firmware upgrade will coast about 400

Feb 12, 2009 | Panasonic TH-42PZ700U 42 in. Plasma...

1 Answer

TH-42PZ77U Blinks 10 times (worked fine for 1 year)

The P, PA, DH, H or DT board may be defective. Email for some help...

Best regards


Dec 26, 2008 | Panasonic TH-42PZ700U 42 in. Plasma...

Not finding what you are looking for?
Panasonic TH-42PZ77U TV Logo

588 people viewed this question

Ask a Question

Usually answered in minutes!

Top Panasonic Televison & Video Experts


Level 3 Expert

4990 Answers

The Knight
The Knight

Level 3 Expert

73460 Answers

Jaime Hernandez

Level 3 Expert

2311 Answers

Are you a Panasonic Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides