Question about Insignia NS-LCD42HD-09 42 in. HD-Ready LCD TV
No sound - We have a picture but no sound at all.
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Posted on Jan 02, 2017
From reading your owners manual it appears the max resolution of the television would be 1280X1024 when using the VGA connection.
If you would like to review the manual it should be available at:
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Posted on Jun 12, 2008
SOURCE: tv stand screws
Check the kitchen drawer next to the fridge for the screws !!
When you get new screws, use lengths 1/2".. any longer and you might hit something inside.
Don't know why this is posted under IS-LCDTV26.. I would pull a screw from my 26" and measure it, but it's most likely different than your 42"
Posted on Sep 06, 2008
This television, appears to have had a failure in the mainboard. This is the board that controls the video functions and sound functions. The unit should be taken or sent in to a service center for testing and servicing. The service center will have all the correct service information to determine the problem for you. You can call Insignia customer support at this telephone number 1-877-467-4289. You can also got to the customer support website at www.insignia-products.com. Go to the support section and ask them for help on how to get service for your television. I hope this information helps you with your problem.
Posted on May 23, 2009
If an LCD TV has sound but no picture do the following:
Use the source button to ensure that source is not set to the wrong input.
Try unplugging power cord for ten minutes, to ensure it is not a setting problem.
Check all the video cables at the back of TV.
Check Light /Color settings.
If problem persist and does not depend on external receiver or settings, then it is likely an internal fault.
If it has sound but no picture then one of the following parts is faulty, and must be tested and replaced:
Theinverter is the high voltage board that provides variable power to thebacklight lamp. This is the most common. When inverter is faulty youcan get no picture, or a very dim picture that can only be seen bypointing a torch light with a 45 degree angle on the LCD surface fromvery near distance.
The inverter must be tested by reading voltages with a multimeter.
The LCD ribbon cable/LCD display and connectors.
Thisis quite uncommon, but happens. If the TV had been hit or moved the LCDcable may have slipped out, or the LCD connector may be damaged.
The LCD controller board.
Thisis the board that controls the video signal, it is difficult to test,as there is need to read determined values on IC pins. To test thisboard you need to purchase a service manual and follow thetroubleshooting diagrams on service manual.
Input/Output Signal boards.
This are the boards where youconnect the video and audio cables, if a signal board is defective,then you may get no picture on particular inputs located on faultyboard.
If under warranty contact the manufacturer ringing the number on the user manual.
If you want to repair at your own expenses, just locate any good qualified repairer.
If you want to DIY you find parts here,
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Posted on Jul 18, 2009
At least the 5VDC stand by power supply is working, there will be a control signal pin from the mainboard to the power supply board to turn on the rest of the power supplies (24vdc for the back light inverter boards, 12vdc for other circuits). Any bulging caps in the power supply?
Posted on Nov 24, 2009
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