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Does a proton tv flatscreen backlight have a replacement fuse

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No. There no seperate fuse for backlighting.

Posted on Jul 06, 2016


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Does a proton flat screen TV. ..backlight have a replacement fuse

Normally all the backlight inverters have fuse. It would be an SMd type.
Of you wish to get some more details check the link below

Jul 06, 2016 | Proton Televison & Video

1 Answer

Do proton tv backlights have a replacement fuse.

Back-light inverter board will have a fuse. Refer its circuit diagram to locate it. If it should blow up, there will be sufficient reason. Some short circuited components/s. If you wish to get some details; check the site linked here. Pull up older posts.
Circuit diagrams of many popular brand TVs and other devices are given.

Jul 06, 2016 | Proton Televison & Video

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How do i fix an insignia 50 inch flatscreen tv?

No, you replaced the wrong part. This is most likely the main power board. It should be verified with a meter before you replace it though.

May 10, 2016 | Insignia Televison & Video

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JVC LT-42E910 LED flat screen TV, backlight comes on, menu box is displayed but after about 5 seconds backlight goes out. Picture and sound still working but no backlight. How can I troubleshoot?

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Jan 11, 2016 | JVC Televison & Video

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TCL L46E5300F flatscreen half right side screen is darker than left side

If it is an LED LCD TV, the backlight inverter board should be troubleshooted. Contact any service technician.

Jan 09, 2014 | Vizio VW46LFHDTV10A 46 in. LCD TV

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I have a 42in emerson flatscreen, which the imag e tends to shut off randomly. The power and sound stay functional, however the image on the screen goes out. Any help with this issue is greatly...

Yes the backlight inverter need to replace. Go to google and type the number on the boards. They are very simple to replace. Make sure the TV is off.

Nov 01, 2010 | Televison & Video

1 Answer

Have a sova 32" LCD flatscreen, purchased in 2007. Visuals went out on it, although sound continues to work. Fixable?

Possibly. Did the problem start suddenly or did the picture fade (possibly with a pink/red color)? The problem was sudden, it probably was the inverter that drives the backlight. If it slowly faded, the backlight itself failed. Most manufacturers will recommend the entire board be replaced if it is the inverter. The inverter is simple to replace but you must get the right one for your tv. (The replacement is disconnect the wires from the old board (like molex plugs) and unscrew the board. Screw in the new board and connect all the wires.) The backlight is a bit harder since you have to use a rotary tool (Dremel) to remove the old one from the housing.

First open up the TV and remove the shielding. Look for any capacitors that are bulging or leaking. (These are cylinders on tripods.) If you see those, note the part number of the board and order a new one. Match the part number and revision if possible. Universal inverters are available but you may have issues like the contrast and brightness being reversed (press up to reduce brightness). (Depending on the inverter they range from $50-$150). You could alternatively just replace the capacitors and usually the resistor that served as a fuse for the board.

One way check the inverter is with a multimeter that can measure frequency. (You need a high frequency range ~50 kHz, Alternatively an oscilliscope can do this.) Hold the multimeter probes a fraction of an inch apart about an inch above the circuit board with the TV plugged in and on. If the inverter is bad or the frequency is too high for the multimeter, you will see a result near zero. If the multimeter gives a measurement of 1 or a value of 20-60 kHz (depending on the TV), it's probably the backlight.)

I hope this helps.

Cindy Wells

Jul 03, 2010 | Sova Digital DST207-S37C Television

1 Answer

I have a westinghouse 32 in flatscreen tv it is

This problem is caused by a bad backlight power supply. Check out this page on our web site: If you can solder then you should be able to do the repair yourself.This page gives pictures and parts information. You will need to open your monitor and replace the parts call capacitors that are damaged as directed on the page. If you don't want to do the repair we do offer a repair service for $40 plus shipping.

I hope this helps, if so please rate our solution.

Corporate Computer

Jan 28, 2010 | Televison & Video

2 Answers


Have you asked proton about the bulb or inverter or power supply. Proton is going to be the only place to get them. Soory to have to tell you but proton doesnt have good customer service.

Aug 11, 2006 | Protron PLTV-32 Television

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