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My Panasonic Viera TH-42PZ77U tv won't turn on.

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Posted on Jul 11, 2013

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6 Suggested Answers

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

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Posted on Jan 02, 2017

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SOURCE: my panasonic plasma TH-42700U it turned off while

solution of light blinking

Posted on Jul 11, 2009

  • 1623 Answers

SOURCE: Panasonic Plasma TH-42PZ77U Power Light Flashing 7x

1 Blink SOS: This shutdown operation is usually caused by a lack of communication between the A and the D boards.
1 Blink SOS: This shutdown operation may be caused by the improper connection of a SS board connector to the panel.
2 Blinks SOS: Pin 87 of the MPU IC9003 monitors the 15V line. During normal operation, the transistors Q9053 and Q9054 output a high to pin 87. If the 15V line is missing or shorted, a low is provided to pin 87. As a result, the unit shuts down and the power LED blinks 2 times.
3 Blinks SOS: IC9807 is a 3.3V regulator located on the D board. Its output is monitored by IC9003. If the 3.3V is not present at pin 86, the MPU shuts down the unit. The power LED blinks 3 times.
5 Blinks SOS: Pin 85 of the MPU IC9003 monitors the 5V line. During normal operation, the transistors Q9051 and Q9052 output a high to pin 85. If the 5V line is missing or shorted, a low is provided to pin 85. As a result, the unit shuts down and the power LED blinks 5 times.
6 Blinks SOS: Pin 90 of the MPU IC9003 monitors the status of the SC board. During normal operation, the transistor Q6581 and IC6581 output a low to pin 90. If the SC board becomes defective, a high is provided to pin 90. As a result, the unit shuts down and the power LED blinks 6
6 Blinks SOS: 6 blinks of the power LED may also be obtained from pin 3 of IC9003, the DRV_RESET input. The D board provides the 5V source needed to power the C boards. On the C2 board, the 5V is routed back to the D board via connector C20/C10, C11/D31 causing pin 3 of IC9003 to be high. If 5V is not routed back to the D board, pin 3 of IC9003 goes low. The set goes into shutdown mode and the power LED emits 6 blinks.
7 Blinks SOS: 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.
8 Blinks SOS: Pin 91 of the MPU IC9003 monitors the status of the SS board. During normal operation, pin 8 of connector SS23 outputs a low to pin 91. If the SS board becomes defective, a high is provided to pin 91. As a result, the unit shuts down and the power LED blinks 8 times.
10 Blinks SOS: The SUB5V and DT9V sources created on the A board are monitored by IC1100. If they are not present at pin 30 and 34, the MPU shuts down the unit. The power LED blinks 10 times.
10 Blinks SOS: The F_STB_15V of the P board, as well as the derived SUB5V and DT9V sources are monitored on the A board for excessive current. If a short circuit is developed in one of the supplied lines, pin 114 of IC1100 receives a high. The SUB5V and DT9V lines are also monitored for excessive voltage. When an over-voltage condition is detected, a high is also output to pin 114 of IC1100. The DT9V is provided to a DC/DC converter to create the BT30V for the tuner. If the BT30V becomes excessive, a high is output to pin 114 of IC1100. A high at pin 114 of IC1100 causes the unit to shutdown and the power LED to blink 10 times.

Posted on Oct 30, 2009

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

SOURCE: TURNS ON THEN OFF, RED LIGHT BLINKS 7X

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

Posted on Dec 17, 2010

AJIN G
  • 6694 Answers

SOURCE: I have a Panasonic model

hi,
In your tv there some problem with power supply. you have to check the followin voltages. Sub 5v SOS ,Main 3.3v SOS A-Board,DTV 9v SOS , Tuner Power SOS. If any one of the voltage fails it will shows 10 blinks.
ok

Posted on Jul 18, 2011

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1 Answer

Won't turn on, light flashed 9 times


the 9 blinks is indicating a panel SOS which means the Panel itself is whats causing the 9 blink error code.

Mar 24, 2012 | Panasonic Viera TH-42PZ85U 42 in. Plasma...

1 Answer

I have a Panasonic model TH-42PZ80U Plasma Tv the red light keeps blinking 10 times and it won't turn on?help


hi,
In your tv there some problem with power supply. you have to check the followin voltages. Sub 5v SOS ,Main 3.3v SOS A-Board,DTV 9v SOS , Tuner Power SOS. If any one of the voltage fails it will shows 10 blinks.
ok

Jul 18, 2011 | Panasonic Viera TH-42PX80U Plasma TV

1 Answer

Hi, Approximately eighteen months ago, I purchased a 42 inch plasma Panasonic television model number: TH-42pz77u) but Saturday night, the television turn off and have five blinking red lights. Then we...


The 5 blinks on the LED means that the main logic D board is defective and will need to be replace to fix the TV.
Check this site to find replacement parts to fix your plasma if you intend to DIY.
Let me know if you need further assistance.

Jan 15, 2011 | Panasonic Viera TH-42PX80U Plasma TV

1 Answer

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.


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 panasonic.ca 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-42PZ77U

TH-42PZ700U **71250001 ~ **80189999

TH-42PZ700UA

Jan 28, 2010 | Panasonic TH-42PX60U Television

1 Answer

TURNS ON THEN OFF, RED LIGHT BLINKS 7X


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

Oct 24, 2009 | Panasonic TH-42PZ77U TV

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