Panasonic TH-58PZ800U 58 in. HD-Ready Plasma TV Logo
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Frank Schwing Posted on Sep 04, 2014

TV comes on but non-responsive otherwise

We had a lightning strike to a tree on our yard. A couple GFCIs tripped, etc but only thing that seems permanently affected is the TV. It is slow turning on and off with remote or button on TV. Sometimes need to hit the button several times. When it comes on, screen lights up but dead otherwise. No buttons do anything on the TV or remote. Tried reset procedure per Panasonic website but didn't do anything. Appreciate any ideas on what the problem is.

5 Related Answers

Anonymous

  • 3 Answers
  • Posted on Oct 05, 2008

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

what is a UPS?? mines doing it too

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marionbagget

  • 718 Answers
  • Posted on Feb 11, 2009

SOURCE: Panasonic 32 inch LCD TV will not turn on-red light flashing

The number of flashes is an error code. Count the number of flash. It looks like one of the boards in your set is failing intermittently. Panasonic codes for a guide as a starting point. Exact board STILL has to be verified;
One Blink: One blink of the power LED indicates a problem in the inverter circuit located on the LCD panel. The inverter board is not to be repaired in the field. Therefore a replacement is required.
Three Blinks: Three blinks of the power LED indicates an over-current or over-voltage condition in one of the DC supplies of the AP board. The AP board is repairable. Therefore the use of an ohmmeter and peak-hold-voltmeter is required to determine the cause of the shutdown. An over-voltage condition is definitely a defect of the AP board. An over-current condition may be due to a short circuit located in the AP board, A board, or the LCD panel.
Five, Seven, or Eight Blinks: The A board is responsible for five, seven or eight blinks of the power LED. The MAIN +3.3V, MAIN +5V, and MAIN +9V sources are all produced on the A board. The detection input pins of the MPU, IC1100, monitor for their presence.
Four or Six Blinks: The AP board is responsible for four or six blinks of the power LED. The DTV9V, and SUB_5V sources are produced on the AP board. The MPU IC1100 monitors for their presence when the unit is connected to AC Power. A short or open circuit on the A board may also be responsible for their absence.
Nine Blinks: Nine blinks of the power LED is due a short circuit in the audio output circuit (s) of the unit. The audio output circuit is located on the A board. Confirm the status of the speakers. If defective, perform a replacement. If ok, replace the A board.
Ten Blinks: Ten blinks of the power LED indicates a malfunction of IC4200, the frame converter. This IC resides on the A board. Therefore ten blinks of the power LED requires the replacement of the A board.

Anonymous

  • 1077 Answers
  • Posted on May 29, 2009

SOURCE: Unable to reset Lamp Hour Meter on Panasonic PT-50LC14

Try this, using the Panasonic remote, wait until the notice about your lamp goes AWAY (it wont work with the message still up).
Hold the volume down on your tv while holding the split/play button on the remote.
You will get a notice about 4-5 seconds later that it was reset.

Anonymous

  • 1 Answer
  • Posted on Aug 23, 2009

SOURCE: Panasonic remote and volume/channel buttons do not work

My son put a penny in the SD card slot of my Pansonic flat screen tv. I finally got the penny out but now the volume and tv controls do not work. I can change the channels through my cable box but that is it. The volume does not work on my cable remote or the flatscreen. What do you suggest I do to fix this problem?? Thanks, Josh

Chi Chu

  • 8457 Answers
  • Posted on Nov 23, 2009

SOURCE: panasonic th-50pc77u red light blinks 8 times in cycle

Ur power board it dead,need it replaced.

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Ed,
Open the back and take a look at the saw tooth filter cap. It's the largest cap you'll encounter in the PS. Just follow the electrical cord onto the board and look for a VERY large electrolytic cap in that area. Usually they bow at the top on a strike like that. Replacing the cap might restore the unit.
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