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Sanyo Model FVD48P4 backlights is not working how do I found out if I have to replace all led bars or inventor?

I have a Sanyo Model FVD48P4 and have done the flashlight test. I can see the picture with the flashlight can turn menu on and off. So that tells me my backlights is not working, so do I have to replace all 12 led bars or is there an inventor I will have to replace and so where is it located.

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6ya6ya
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Posted on Jan 02, 2017

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gopakumarg43
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SOURCE: lg led tv backlight

Fault with its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Posted on Feb 05, 2015

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gopakumarg43
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SOURCE: 47' (sic) LED TV, model number m470vse. Why doesn't the backlight work?

Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should trouble shoot. Contact any service technician. The circuit will differ with models and versions.

Posted on May 30, 2015

gopakumarg43
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SOURCE: Ok I tried the flashlight test on my tv and I can see picture and ther is sound and I don't know where is the backlight inventor in my tv how I would know what's wrong if it's back light or led prople

Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Posted on Nov 21, 2015

  • 16195 Answers

SOURCE: Where is the backlight inverter located in an Sanyo 32 LCD model DP32242 television? Does anyone know if it is part of the power supply board?

http://www.shopjimmy.com/toshiba-pk101v1780i-power-supply-unit.htm

Posted on Apr 17, 2016

AJIN G
  • 6694 Answers

SOURCE: How do I repair a no backlight problem

Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis....
http://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on May 10, 2016

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2 Answers

Sanyo DP46142 TV comes on for approximately 30 seconds and then screen goes black. Power LED stays on.


Sounds like a backlight problem to me. If you input a signal to the HDMI or Composite input and then it goes black have you tried taking a flashlight to the screen to see if the picture is still there but just dark? That would indicate a backlight issue. That model appears to be an LED edge lit backlight, so if the picture is still there after going black your going to have to trace out the backlight circuit and see whats going on. Usually with LED backlighting if it comes on at all then the LED's are good, its just the driver supply thats failing to keep them on. Some TV's have a small separate board that provides the backlight control, but i suspect with this model its on the power supply board and not the motherboard. Have you checked that board? It could be bad caps on the power supply board, check the voltages to the backlighting when it lights up and then when it goes dark. It could just be some failed capacitors on the power supply causing that voltage rail to drop off.

May 04, 2017 | Sanyo Televison & Video

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Sanyo DP40142 LCD backlight not working... How do I replace backlight inverter?


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Jan 29, 2017 | Sanyo Televison & Video

1 Answer

Does a sanyo dp32d53 tv have a light that can be replaced ??


If the backlights do not come on it indicates that the led driver has failed. The white backlights are LEDs that sometimes fail a few at a time but not all at once. LEDs can be replaced, but that requires a complete disassembly of the parts inside the TV. The driver board may be incorporated on the power supply or the main board. The people here can assist you in getting the right part for your TV: TV Parts Universal TV Stands DLP Chips ShopJimmy

Nov 05, 2016 | Sanyo DP32D53 32" 720p 60Hz LED LCD HDTV...

1 Answer

Sanyo FVD48P4 sound but no picture


Well. You're a technician I assume. You've done all that you know, and made it somewhat dump. Contact the authorized service center. This forum is not intented for making revenue for an other. OK?

Jul 11, 2016 | Sanyo Televison & Video

1 Answer

Where are the LED drivers on a sanyo model FVD48P4 tv


If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

May 17, 2016 | Sanyo Televison & Video

1 Answer

Ok I tried the flashlight test on my tv and I can see picture and ther is sound and I don't know where is the backlight inventor in my tv how I would know what's wrong if it's back light or led prople


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Nov 21, 2015 | RCA Televison & Video

1 Answer

How do you replace a backlight inverter on a Sanyo FVD48P4 led tv?


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Sep 23, 2015 | Sanyo Televison & Video

1 Answer

Sanyo 42 inch LCD TV - Could the back light inverter be the cause of not getting any power? There is a red light on it and that is all


> Could the backlight inverter be the cause of not getting any power?

If the set uses a fluorescent backlight (many use LEDs instead) it will not prevent it from turning on so at least audio should be present.
With no backlight. you will not see any video but the set will receive and audio will work.
If you replaced the (main) power supply with a 'pull' (removed from another set) it may have failed like your original one.

Jun 25, 2015 | Sanyo Televison & Video

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