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I have a changhong 32in led tv with games, it is the 2nd time that no video bt with sounds, the 1st tme tech said it is the panel back light problem, and now it happen again.. what cn i do with it? cn i request for unit replacement since it is 8th month old t.v.

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I have a 32in sylvania the power went out what could be the problem

Posted on Nov 23, 2013

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Samsung TV won't turn on- trying to fix it. A challenging problem

I had the same problem. I live in NJ and called the local authorized "service provide" listed on the Samsung website. What a joke. Quoted $350 just to show up, never showed up. So I opened my own TV. Took off the plastic back (10 screws) took off the large metal RF shield (12-14 screws) and noticed a blown component. The markings on the component were KL15L and it is apparently an NTC Thermistor. Obviously it got fried and not knowing if there was other damage I decided to set out to replace the entire Power PCB Board Assembly and not the component. There were two part numbers on the assembled board (BN97-00457E & BN94-00622E). After searching online I also found a suitable replacement number for these (BN96-04896A). I found two places who claimed to have the part or have it on order (shopjimmy.com and vancebaldwin.com). After placing orders with both and having neither come through, I broadened my search and found out that the LNR409D was basically the same model as my LNR408D so I looked for its Power PCB Board Assembly part number which turned out to be BN41-00521B. Google search for that part number showed the item available on ebay. I bought it a week ago (ebay 260311519904) for $144 plus $12 shipping. I removed the bad board an hour ago (6 screws about 7 connectors) installed the new one, plugged in the connectors, replaced the covers, plugged in the TV... AND IT WORKS!
Suggestion: If your TV is out of warranty then open it up (what have you got to lose) and see if the problem is obvious and maybe something you can fix (replace) yourself. The parts, spare boards, etc. are out there if you look.

Posted on Nov 16, 2008

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SOURCE: 42" panasonic viesta plasma tv cuts off after about 30 minutes

Adjust the automatic shut off settings on the set using the menu system. the newer models are programmed to shut down to avoid the burn-in problem associated w/ plasma scenes.

Posted on Dec 30, 2008

  • 1 Answer

SOURCE: Another dead Vizio... P50HDM

95% Y and Z sustainer boards since you alweady had red pixels.

Posted on Jan 19, 2009

  • 1 Answer

SOURCE: My Bravia Model KDL 46Z4500 (4 months old) turns

Replaced circuit board under warranty.

Posted on May 05, 2009

  • 188 Answers

SOURCE: no picture on my philips 42PF7321D/37

Bad caps in the power supply must be replaced .

Posted on Jul 21, 2009

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Our changhong led tv has power and sounds but no picture, only black screen.


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Jul 11, 2016 | Televison & Video

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How to connect dvd player to changhong tv Model ud42yc5500ua


Changhong 42" Class Ultra HD LED TV - UD42YC5500UA ...

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Buy Changhong 42" Class Ultra HD LED TV - UD42YC5500UA with fast shipping and ... Samsung BD-J5100 Blu-Ray Player ..... Blu-Ray/DVD Disc Playbac.

How to connect a standard DVD player to a TV - YouTube

? 2:57
https://www.youtube.com/watch?v=8pARHjY8xoo
Jul 5, 2011 - Uploaded by All About Home Electronics.com
How to connect a standard DVD player to a TV .... is the make and model of your blu-ray dvd home theater ...Missing: ud42yc5500ua

Dec 30, 2015 | Televison & Video

1 Answer

Purchased the Westinghouse tv 3-6-15. Sound is going.


It's a off brand TV. Bestbuy has a bunch of offbrand TVs for $150 us.

Oct 26, 2015 | Westinghouse 32in 720p LED HDTV - LED TVs

1 Answer

How to fix my lcd tv and magic remote?


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

May 29, 2015 | LG 47LW6500 47 3D LCD TV

1 Answer

Imac intel will not power on


Possible failed video card. 3rd LED indicates MLB and GPU are communicating: (CAUTION! There is high voltage from the powersupply so any attempt to open iMac other than removing glass panel to see the indicators...should be done by authorized ACMT)

  • LED 1 - Indicates that the trickle voltage from the power supply is detected by the main logic board. This LED will remain ON while the iMac is connected to the AC power. The LED will remain on even when the computer has been shut down or put to sleep. The LED will turn off only if the AC power is disconnected or the power supply is faulty.
  • LED 2 - Indicates that the main logic board has detected proper power from the power supply when the computer is turned on. This LED will be ON when the computer is turned on and the power supply is working correctly.
  • LED 3 - Indicates that the computer and the video card are communicating. This LED will be ON when the computer is communicating properly with the video card. If LEDs 1 and 2 are ON and you heard the startup sound, but LED 3 is OFF, then the video card might be installed incorrectly or need replacement.
  • LED 4 - Indicates that the computer and the LCD display panel are communicating. This LED will be ON when the computer is turned on and video signal is being generated. If the LED is ON and there is no image on the LCD display panel, the LCD display panel or inverter might be installed incorrectly or need replacement.

Aug 01, 2017 | Apple 24" iMac Desktop

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I have a intel 478 board an don`t know how to connect power poer led


The power led wires ( there are two) go onto the two pins on the top row of the front panel coonetcor block on the board, on the 1st and 2nd pins working from left to right.

The full connector block is wired as follows:

top row: left to right >>
1st& 2nd are Power LED, the 3rd & 4th are the power switch, the 5th is empty.
The bottom row: left to right >>
1st & 2nd are hdd light, the 3rd & 4th are the reset switch, the 5th pin has no connector to the pin
Note: the power led and hdd terminals are to produce a light when the pc is on and busy.If the lights do not show, turn off the pc, turn the connectors round 180deg, reconnect and turn back on again. Job done
compdoctor2005@btinternet.com

Dec 10, 2008 | Computers & Internet

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