Question about Polaroid TLA-01911C TV

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My Polaroid Flat screen has no picture, but still has sound

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  • Master
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No picture can be caused by dead T-CON board, main board, 24vdc power supply not supplying power to the backlights inverter board, bad backlights inverter board. So inspect for bad caps fisrt and also try the instruction below.
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 is some troubleshooting 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:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

Posted on Mar 18, 2011

  • Bud Martin
    Bud Martin Mar 18, 2011

    By the way, is this the 19" TLA-01911C or larger model, if it is the 19" model, then look for blown fuse on the backlights inverter board also.

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  • Polaroid Master
  • 1,210 Answers

There are many, many bad capacitors in the signal board. You must use an ESR meter to locate and replace these. There will also be two bad caps in the power supply, find and replace those two. The signal board will have 15 or eighteen bad caps. If you reassemble your TV and it howls when you turn it on, you have missed a few caps. Take your time, careful not to pull the printed traces off the board or you face destroying this little jewel. Thanks for asking and show a few hands of support.

Posted on Mar 14, 2011

  • Sondra Dangler
    Sondra Dangler May 18, 2014

    I think I would have ask first if the hooked a HDMI cable up and went to setup and selected the HDMI as a source.

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6ya6ya
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dave1645
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SOURCE: green screen with sound

the T-con board is failing try shopjimmy.com or Topselectronics in Haverhil Ma

Posted on Nov 30, 2009

  • 8457 Answers

SOURCE: Polaroid Flat Screen TV not working

Ur LCD inverter board is dead.Replaced this board will get ur picture back.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter card to replaced.The board shape is a long board.

Posted on Apr 06, 2010

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SOURCE: No sound on my Polaroid flat screen

Unplug,replug the tv about an hour later.Go in ur tv menu.Go to AUDIO,go down to reset it,well go back to factory setting.Ur sound should return.Not,than ur Tuner board is dead.Trires websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner board for the replacenent.

Posted on May 04, 2010

  • 11 Answers

SOURCE: The Polaroid Flat Screen TV just died.

Sounds like a bad capacitor on the power circuit board. best place to look

Posted on Aug 10, 2010

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SOURCE: My Polaroid flat screen tv started smoking and the

It can be repaired, however, the cost is probably going to be in the area of $200.00 or so. Unfortunately these were not reliable sets. I have repaired way to many of them to recommend repairing it.

Posted on Nov 10, 2010

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