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How do I narrow down which part is causing backlight failure on my LED TV, and how to replace it. The TV is an Insignia NS-48D510NA15 Thank you

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 2318 Answers

SOURCE: Insignia NS-32LCD Backlight or Inverter bad???

If you've done the flash light test, it could be the inverter board became defective but it could also be that the power supply does not provide the +24VDC to the back light inverter board.
If you could do the +24VDC test using a voltmeter then we can say for sure that the back light inverter board is defective.
Let me know if you need further assistance.

Posted on Aug 21, 2008

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  • 1 Answer

SOURCE: Remove base of Insignia ns-ltdvd26-09

to remove base from insignia tv
1)remove plastic cover from bottom rear of tv
2)remove 8 philips head screws on rear of tv above base
3)pick up tv and base will come off

once you remove it you realize how easy it is

Posted on Aug 26, 2008

  • 11 Answers

SOURCE: insignia ns-lcd32

You can download the manuals from the Insignia website at:
http://www.insignia-products.com/c-14-lcd-televisions.aspx
Jerry

Posted on Dec 08, 2008

John-INSG
  • 312 Answers

SOURCE: Insignia NS-LTDVD26 won't turn on

It is always recommended to ensure that your TV is powered down before connecting or disconnecting cables. Unfortunately, it is likely that your TV requires service for the power issue.

Posted on Aug 07, 2009

budmrtn
  • 11361 Answers

SOURCE: I just bought a 32" insignia tv ns-32l430a11 and I

You do not need to buy anything, just look at the owner manual, or look at yor remote control for the button with 'DISPLAY', 'ASPECT', 'ZOOM' for adjusting the aspect ratio.

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
Failed TV and Monitors: 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, long life rating such as PANASONIC FM or FC series.

Posted on Nov 30, 2010

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1 Answer

I have an insignia ns-55d420na16 sound YES, picture NO. i have diagnosed: and have narrowed: to either the backlight inverter board or the led itself. is there a way of knowing which IS the issue?


Shine a flashlight on the screen while the TV is on. If you see movement then the Inverters are gone. If you don't get a dim picture then the T-con board is bad. You can get parts here: TV Parts Universal TV Stands DLP Chips ShopJimmy

Aug 30, 2016 | Insignia Televison & Video

1 Answer

How can I get a manual for NS-40D510NA15


Insignia has the manuals for most of their products on the product page. Click on the Support/Downloads tab. For the NS-40D510NA15, see http://www.insigniaproducts.com/products/televisions/NS-40D510NA15.html . The direct link to the User's Guide (as a PDF) is http://www.insigniaproducts.com/cms/documents/manuals/NS-40D510NA15_14-1088_WEB_V3_ENG_Final_lr.pdf . There is additional documentation available and there is an HTML version of the user's guide as well.

I hope this helps.

Cindy Wells

Feb 01, 2016 | Insignia Solutions Original INSIGNIA TV...

1 Answer

Led power light comes on but screen will not come on.


"Blinks a few times" implies the TV is flashing a fault code at you. If you can find a service manual for your model, count the number of blinks and look it up in the diagnostics section.

However, the most likely problem is a burned-out electrolytic capacitor in the power supply. These are usually easy to identify visually; the top of the can-shaped capacitor should be flat, but may be bulged out and may have brown or black material leaking from the vent scores. The photo below shows a bad capacitor to the right of a good one; both have black plastic sleeves.

If this is the case, replacement capacitors are relatively cheap. However, you should look for the following criteria in choosing a new part:
>Capacitance (uF): same as the original, or 10% higher if the original value is not available
>Voltage: same or higher
>Temperature: Maximum temperature should be same or higher
>Physical size: should fit in the space occupied by the original; if buying a taller unit, make sure it will fit when the back cover is reinstalled, and make sure the capacitor will not touch heat generating parts such as heat sinks, resistors or large transistors.
>Ripple current: get the highest available without compromising too much on endurance. Ripple current may be specified in mA or A; 1 A = 1000 mA. Sometimes you can get a better rating by going to a higher voltage part, but physical size may be a limitation.
>Endurance: Try to get 8000 hours or better.

I usually use Panasonic FR1 series capacitors, although United Chemi-Con EKZN capacitors are also worth a look. 25351068-tkog3zu3xmxabptjkcidpctj-1-0.jpeg

Jan 02, 2015 | Insignia Solutions Original INSIGNIA TV...

1 Answer

My Insignia NS LCD 37 will power up but the screen is gray and there is an even lighter gray bar going up and down but no picture


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Take it to a repair shop.

Apr 07, 2014 | Insignia NS-LCD37 37 in. LCD TV

1 Answer

Insignia NS-32E570A11 no picture or sound


Just FYI: I had a friend with an Insignia NS-32E570-A11 with a backlight problem, and it turned out to be one of the actual LEDs in the backlight array was burned out, causing some sort of over-voltage condition that made the backlight sometimes work, and sometimes just flicker for a moment at TV startup and then turn off. We took the panel apart and bypassed the one bad LED (it had a dark spot on it and failed continuity - you can test each LED with a continuity tester and see them light up!), and now the TV/backlight works! Be aware this is tricky bypassing the bad LED, as it is ultrasonically welded to the LED array strip (same technique used to make ICs), so you need to be a very good solderer to bypass it without it breaking the connection.

May 31, 2012 | Insignia Ns-32e570a11 32" Led Lcd...

1 Answer

I have a new insignia 55 1080p led tv . What is the best picture settings?


Personaly I think these settings are the best for the insignia
Contrast: 38
Brightness: 50
Sharpness: -50
Color: 45
Tint: G3
Backlight: 3


Jul 25, 2011 | Insignia NS-P502Q-10A 50 in. HD-Ready...

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