Question about Toshiba 32AV502R LCD TV

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Blinking light The tv automatically turned off now it wont turn on constant green flashing light

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  • Toshiba Master
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Probable power supply failure.

Posted on Jan 12, 2014

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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ginko

Ginko

  • 19396 Answers

SOURCE: i have 3 blinking lights and tv wont turn on

The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Posted on May 22, 2009

Anonymous

  • 7 Answers

SOURCE: tv will not turn on. timer light constantly blinks

If you can get into the main menu go to load factory default and reboot, This will reload factory settings and this operation will erase all unwanted settings and load back to factory default. so you can load your own settings and take back control of your tv.

Posted on Feb 23, 2010

Chi Chu

  • 8457 Answers

SOURCE: 42" Toshiba Plasma TV wonn't turn on

Power board require changing.It dead.

Posted on Jan 08, 2010

budmrtn

Bud Martin

  • 11361 Answers

SOURCE: wont turn on

First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there are some troubleshoot you will have to do to find out the causes of the problem you are having.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx

Please post back what you find.

Posted on Jul 31, 2010

SOURCE: tv will not turn on

Your main power board located in the center where your power cord will plug into is going bad, actually it's just a relay. I have the same problem, tv works for hours til relay overheats, then tv shuts off and tries to restart, hence the clicking and the 3 green flashes, mine will actually restart after 15-30 minutes. search online for the board, ranges anywhere from 150-280. I haven't found anyone to sell just the relay. I am trying tv with rear panel removed and cover removed from relay to see if relay will not malfunction? Board is a simple plug and play, just remember to have the tv unplugged.... you can actually remove the rear panel while on it's stand, just don't remove the screws holding the base onto the tv.
Good luck!

Posted on Nov 18, 2011

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I have a Mitsubishi WD-62525 HDTV that suddenly wont turn on. Just has a green blinking light when you hit the power button. Any ideas?


I found this on another website, most likely it is your power supply capacitors.
  1. Press the "reset" button and hold for 10 seconds .... Does TV turn on and blinking green light turn to solid green.

  2. Unplug the TV from it's power source for various times, ranging between 5 minutes and 24 hours..... Does blinking green light continue upon plugging in the TV.

  3. Disconnect ALL devices from the TV; DVD, Tuner, Cable Box, unplug the TV for various duration times .... Does blinking green light continues upon plugging in the TV.

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Diagnosis: If none of the above test resolve the issue, then the failure lies in one of the following:

  1. DM Module Capacitors have FAILED.
  2. DM Module is defective.
  3. EEPROM Board failure
  4. Power Supply failure.

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