Northstar M121 Navigation System Logo

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Eric Hemphill Posted on Jan 15, 2016

Backlight inverter board northstar m121

Backlight burned out a resistot is the problem any one can tell me the part number or referene ce to buy and install a new resistor on ther circuit board r

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We have a Northstar system on our boat...the M121 and while out fishing today the screen went so dark we cant read it without a flashlight. Cant seem to be able to fix it either..any ideas?Thank-you

i have the same problem there is a resistor on the high voltage side burned cannot identify the number or resistance to replace it need diagram or parts list for machine
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Colour codes of output data cable explorer 650

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http://www.northstarnav.ca/upload/Northstar/Documents/EXPLORER_650.pdf
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No picture

Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board will get ur picture back.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter baklight board for the replacement.It a long board in shape.
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Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board,will get ur picture back.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter backlight board for the replacement.It a long board in shape.
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We have Westinghouse LCD TV model number is LTV-32w1 and the problem is that screen is black though we hear the sound of the channels of our Direct TV service. Does it mean that it is broken or still may...

Ur tv have a dead electronic's board known as a LCD inverter backlight board.Replaced this LCD inverter backlight board,u will get the picture back.Tries Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter backlight board for the replacement.It a long in shape board.
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RCA L42WD22yx6 with no picture , audio is fine.

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Worked one night, next morning would flash on then automatically turn off

Yep, the inverter transformer on the Power Supply Board burned out. It's one of 5 inverters that powers up the screen.
If one is burned out, it will not have enough juice to power the screen and goes into protection mode like it's doing right now.

You'll have to replace the POWER SUPPLY/BACKLIGHT INVERTER BOARD. The cheapest place runs for about $90.

I'm not sure which one you have, there are 2 different boards for that TV. The board number should be in white on your board.
Here's for the BA8AF0F01031
http://www.shopjimmy.com/power-supply-backlight-inverter-ba8af0f01031-from-emerson-lc320em9-5.htm
And here's for the BA8AF0F01032
http://www.shopjimmy.com/power-supply-backlight-inverter-ba8af0f01032-from-emerson-lc320em93-8.htm

It's definitely cheaper than buyig a new TV. That what I did to fix mine. :)
If you throw your old board in the trash, I would like to keep it for research if possible. Here's my e-mail: [email protected]
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Can't find an inverter board for my X9G Komodo III

You can try http://providencedata.com/. They have a huge selection of inverter boards. If you are using the monitor and are confident in your souldering skills you can usually buy the capacitors for about 20-30 cents each... Bit of a risk if it goes and burns up on ya though ;)
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