Question about Insignia Televison & Video
Check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Pull up older posts. Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts. http://electronicshelponline.blogspot.com/
Posted on Dec 24, 2016
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Posted on Jan 02, 2017
This set should still be under a manufacturers warranty. This set has a board that is very hard to get. Do not let them tell you to wait, or you will wait and not get the set repaired. You need to call and have them repair or have them replace the set before the warranty runs out. If you do you will have a hunk of junk.. Good Luck
Posted on Sep 12, 2007
If your TV is less then a year old, still under manufacturers warranty. If not under warranty the defective parts could be the power supply or the back light inverter board. Both boards can be replace easily.
The way to know if you have a defective backlight inverter is by shinning a light from a flash light near the screen with the TV on and check in a 45 degrees angle if you have a dark video in the background, if the video is present then you have a backlight board failure. If no video, then is a power supply failure.
I have both boards if you want to buy them.
Let me know if you require further assistance.
Posted on Jan 08, 2009
SOURCE: Insignia NS-LCD37 TV - no sound
Start checking the cable connection to receiver, try moving or replacing cables.
If you have a surround with external speakers check surround connection cable and speakers wiring.
If the cables are OK, then the unit may be faulty.
In that case the fault can be either the audio board (often audio circuit is integrated on the main board) , or the sinput output signal board.
Also a contact on connection to internal speakers can give you same problem.
Posted on May 22, 2009
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