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Polaroid 4641-tlxb lcd tv. Black screen--no power. Won't turn off.

I have a 15-month old Polaroid 4641-TLXB, which has the following symptoms:

  1. TV screen won't turn on (red light will turn blue, but screen is blank)
  2. Can't turn off TV with remote or on the set (blue light won't turn red when the screen is blank); I have to unplug TV to turn it off
  3. TV also does not turn on when unplugged (even for a long period of time)then plugged back in.
I have seen the thread re the solution for the FLM-373B with identical problems. Would that approach possibly work for me? If so, I am a noob, so where would I find out which parts of the back to remove, where the offending capacitors are, and how to access them?

Alternatively, how do I find a reliable repairman in my area (just outside Philadelphia), given the fact that Polaroid is not a common tv. Polaroid is of no help (other than suggesting replacing the fuse, which I did). They won't recommend anyone. Although the Polaroid warranty has expired, I can get the credit card company to cover tthe costs, under their warranty extension program.

TIA.

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  • Anonymous Jan 15, 2009

    i had a similar problem with sony had to buy a new bulb just over a hundred dollars came in a pop in module. i searched for sony replacement bulb to find it. tv would not turn on . it fixed it the bulb lasts about 2 years

  • Freya216 Apr 29, 2009

    373b doesn't come on when turned on....get a flash of the Polaroid logo then black screen with the blue light. It will not turn off so I have to pull the plug to get it turned off. Just before this happened it developed a loud humming sound on the 1080i setting. We switched to 720 display and the sound problem lessened then the next thing that happened was the power failure when I turned it on.

  • pzip May 15, 2009

    Same problem, can't turn the tv on or off with the remote or the buttons on the side. I have to unplug the tv for a few seconds before I can turn it on. Also has developed a buzzing noise.

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6 Suggested Answers

  • 729 Answers

SOURCE: Polaroid 4241-TLXB

here's your TV specifications and manual...
http://www.hdtvsolutions.com/flatscreen_spec.cfm?part_id=1948
http://www.hdtvsolutions.com/pdf/4241tlxb.pdf

Posted on Nov 26, 2007

  • 15 Answers

SOURCE: FLM-373B

http://www.fixya.com/support/r741402-polaroid_flm_373b_lcd_tv_black_screen

Posted on Jul 04, 2008

  • 3 Answers

SOURCE: 1511 TLXB used as PC Mon

You have to use the TV remote to access the set menu.
From there, you can set the TV to monitor mode.

Posted on Aug 25, 2008

albertv29
  • 87 Answers

SOURCE: Polaroid Model FLM-3232 Television

Most likley it is the main processor on the main board..You cannot replace this processor.Go to shopjimmy.com and see if they have just the main board.

Posted on Jan 12, 2009

rylee_smith
  • 8619 Answers

SOURCE: Polaroid 4641-TLXB LCD TV won't turn on

Hi!

First of all please unplug the TV for an hour or more. If this power reset does not allow the TV to turn on component failure is indicated. These sets are assembled using the wave soldering process they are known for having cold solder connections. The safety circuitry shuts the TV set down when it detects a problem. This model of TV has over 2,000 parts which include millions of transistors inside the integrated circuits. The capacitors will change value, leak and become defective. Resistors will change value and burn. Integrated circuits and transistors can go bad. This can cause other components to become defective, which can have a domino affect and cause other parts to fail. Replacing one defective part may make the TV operate for a short time but the part will fail again since if the parts that caused the failure to begin with are not replaced. The only way to know for sure what is causing the problem and for proper repair all the electronics must be diagnosed with the correct electronic test equipment and the correct skills to use the test equipment.

If you want to repair it yourself then you must be having an oscilloscope and has a knowledge to operate it.


If you decide this is not something that you can do it yourself then this repair will be about $100 to $300. If the problem is a bad circuit board, and if the board can be repaired or has to be replaced. A small TV repair shop will often charge less for the repair than a large electronics repair facility.


Please do accept this solution and revert for further assistance.


Thanks

Rylee

Posted on Jun 24, 2009

  • 1 Answer

SOURCE: polaroid 1911-tlxb

I have the same tv and this code worked for me today. It is 1523 and if you have comcast then it is a 5-digit code 11523. Goodluck.

Posted on Jul 06, 2009

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