Question about Sanyo DP42849 42 in. HDTV

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Sanyo DP42849 no picture but has sound

Tv made squilching noise for bout week then pic went black. has audio but no pic, green power light is on. which board is bad, power board, av board or inverter board? when i turn on tv i can see a pic light up for about a milla second then black, help : [

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  • Sanyo Master
  • 933 Answers

Sounds like an inverter problem. On some of these sets, the inverter and the power supply are on the same board. These boards tend to be quite pricey, $100 + range. I've worked on your particular model with the same problem, and it was a bad inverter/power supply board. I would recommend you get a diagnosis to be sure.

Posted on Oct 29, 2012

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Posted on Jan 02, 2017

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SOURCE: Sanyo LCD TV DP32746 no picture

Easy way to Diagnose is get a known good CCFL from a laptop or LCD TV and start plugging it in to the existing Cathode's Ports one at a time. Generally its a bad CCFL on these multiple units.. (2,4,6) Bulbs.. Moniserv.com for replacements.

Goodluck guys!

Posted on Apr 04, 2008

  • 2 Answers

SOURCE: Sanyo Plasma Tv Black screen

I had the same problem and Sanyo does not make parts for this model anymore. Luckily I had the extended warrantee so they reimbursed the full purchase price.

Weird that the poster above mine was able to get a part; I was told the part is no longer available.

Posted on Jun 16, 2008

  • 135 Answers

SOURCE: screen went black on my 42" sanyo model dp42647 lcd

Hi there! The panel may be in protection mode. The Inverter board is the most logical area to start after checking power supply Voltages.(5,6,24 and 13Volts). There may be coils on the Inverter Board which have bad soldering or faulty. Other than this it may be main board which controls switch on or off. If all else fails, refer to a repairer. Beware of High Current!!! Best Wishes and Good Luck, Jus004

Posted on Aug 23, 2009

  • 8457 Answers

SOURCE: hello my Sanyo dp42849 42 inch has no picture and

The power supply board is dying.That the board,where the power a/c cord plug into it.That the power supply board.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Posted on Jul 16, 2010

  • 8457 Answers

SOURCE: last night watching tv, picture cut off (black

Power supply board is dying not giving the tv correct voltage anymore.The power supply board,that the board power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Posted on Sep 10, 2010

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Sanyo dp42849 completely black screen, green light blinks every minute.


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Magazine" will make surf easy.
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Apr 26, 2014 | Sanyo DP42849 42 in. HDTV

1 Answer

Sanyo DP 42849 42'' lcd tv no audio no video


Fault at its main digital 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. 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.

Jul 03, 2017 | Sanyo DP42849 42 in. HDTV

1 Answer

I have a sanyo dp42849. i turned it on this morning. the power light went on and i have no picture or sound


Sounds like a main board issue, but please have the set diagnosed properly. Be aware, some Sanyo main boards can be hard to find and costly !!!

Sep 05, 2012 | Sanyo 42 in. LCD TV

1 Answer

I have a 1 year old sanyo 42" lcd tv, model DP42849, The tv was running perfect till one day watching a movie, the screen went black and audio went all strange, i shut it off and on, and nothing, the power...


You need to find out if the power supply is putting out 24vdc for the backlight inverter board, it can be that the inverter board has short circuits which will cause the 24vdc to go into shutdown to protect itself, you can disconnect the power cables to the inverter board to see if you will get the 24vdc back.

Aug 05, 2010 | Sanyo DP42849 42 in. HDTV

4 Answers

Hello my Sanyo dp42849 42 inch has no picture and no sound. when i turn on the tv a green light in the bottom right hand corner comes on and occasionally flashes off and then back on.


First, you need to know the sub-model of your TV.

It is called "chassis" and is shown on the back of the TV on the label where the model number is shown.

For example it can be "P42849-00" or "P42849-01".

Then search at www.coppelltvrepair.com/search or just go to www.coppelltvrepair.com and enter the link for SANYO DP SERIES to search for that.

Here's an example of a repair service (note it may NOT be the one for your exact model though!):

http://www.coppelltvrepair.com/p/41/sanyo-dp42849-p42849-00-does-not-power-on-repair-service

Hope this helps!

Jul 16, 2010 | Sanyo 42 in. LCD TV

1 Answer

Sanyo 42" LCD will not turn on!!!


Power supply board is dead.Buy a refurbish power supply board at Shopjimmy.com,Ebay.com for the replacement.

Mar 26, 2010 | Sanyo 42 in. LCD TV

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