Polaroid TLA-04011C 40 in. LCD TV Logo

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Anonymous
Anonymous Posted on Apr 15, 2009
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I replaced the Power board,but still won't turn on unless I unplug it for a half hour...then maybe it will come on.It's not the caps..I ordered a new main board.Will this help?When I plug it back in the red and blue lights alternate with a popping sound.

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  • Anonymous Apr 22, 2009

    Remove the aluminum plate from the right side of thepower control board.It has 5 screws holding it to the board.It is causing a short in the board.

  • jlk0644 May 24, 2009

    My tv has been acting up for over a year now. I plug it in and it worked for a week or so then the red power light would come on but wouldn't turn blue and actually turn ON. I moved and after the move I plugged it in to try it again and it worked. Afew weeks later it did the same thing again.

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marionbagget

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  • Master 718 Answers
  • Posted on May 07, 2009
marionbagget
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Polaroid TLA-04011C

You can get a service manual from;
http://www.polaroidsupport.com/polaroid/docs/TLA-04011C_TLXB-4011_TLXB-4241_ServiceManual_20070613.pdf

This will give you diagnostic flowcharts etc. This could be useful in the future.

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I have a Panasonic TC-P50X5 tv I had to unplug it & when I plugged back in I get no power
This is a very common issue with this model TV, you have bad capacitors on the power supply board, try this first, take a blow dryer and set it by the heat fins on the back of the set, turn it on for about 10 mins, plug the TV back in and there is a good chance it will work again and keep working as long as it's not unplugged. The correct way to fix it is replacing the 3 defective caps in a row towards the bottom of the board, I don't have the numbers but if you want to replace them I can get you the numbers but that involves soldering skills and purchasing new capacitors (new ones can be purchased at digikey.com) last option is replace the power supply board if you can find one. Do NOT buy a board from ebay unless you want another defective board. Hope this helps
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My toshiba 40sl412u turns on for a second then off
You more than likely have faulty capacitors on the power board. the caps won't let the power build up.

the general steps are
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  2. lay it glass side down on a soft thick blanket to protect the glass.
  3. remove the rear panel.
  4. identify the board with the power connector.
  5. remove it.
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This will generally cost $10 for the caps and less than $50 for the soldiering equipment. You tube has a vast number of videos on this.

a tv repair shop locally should cost less than $100. should be even less if you remove the board and bring it to them. there are companies that you can send the board in and they will repair and send it back.

Mind you $100 is cheep VS a new tv. I replaced the caps in mine for 10 bucks and a few hours of time, but I'm a highly qualified electronics repair tech.
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Your power board is most likely not going to be there, but the principles are the same for all boards.
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Our monitor keeps flashing on and off
OK, you have a UltraSharp Dell Monitor.
If the unit powers up and the image on the screen flashes on and off, you have had a power surge and the main power board will need to have most of the Caps. replaced or it may be better to have the entire board replaced.
The power board repair is not a hard job but finding the wright person to do it, may be harder than having it replaced.
Should be about 5 caps. will need to be removed and replaced.
One hour in labor $35.00 USD and maybe $5.00 in parts.
Or you can order the board on Ebay for about $35-40.00. and 1 hour to replace and re-assemble.
If the unit is under warr. Don't give them information, they will give you a RMA and make arrangements to have it shipped to them for repair. If you say Power Surge, they won't warranty.
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1. Remove the rear cover 2. remove the perforated large shield on the main board housing (almost in center). 3. Unplug the right top fan and temp sensor plugs ( two small plugs at the top of the main board). 4. Remove screwsthat secure the main board housing, there is also four screws by the video inputs. Do not unplug the board, just gently pull it away 6 to 8 inches. 5. Remove the cover with the Top fan attached (more screws). 6. Now the scan board for the top half of the screen is exposed. The board has four large heat sinks with two large Electrolytic aluminum caps next to each heat sink. 7. The problem caps are at the very top right side of the scan board C192 Nichicon 220 uf next to the IC, the other cap is C120 100UF on the lower side of the IC next to a heat sink. I replaced them without taking the board out. C192 is the one that failed, the other one tested OK but I replaced both.
I got the caps from Mouser.com they are 69 cents each, the Mouser part number for the 220Uf is: 647-UUD1C221MCL1GS (Nichicon 220uFm 16V 6.3x7.7 mm surface mount); the 100uF is:647-UUD1E101MCL (Nichicon 100uF 25V 6.3x7.7mm), both are 105 degree C. I bought two extra spares in case I need them for the future.
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