Question about Sanyo 42 in. LCD TV

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.

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4 Answers

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  • Sanyo Master
  • 749 Answers

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!

Posted on Mar 30, 2013

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  • Sanyo Master
  • 8,457 Answers

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

  • COREY MIGGINS Nov 22, 2012

    I HAD THE SAME PROBLEM I BOUGHT POWER SUPPLY BOARD BUT STILL DID NOT COME ON

  • Chi Chu Dec 02, 2012

    This problems,some time the main board also died too,because the power board about to died or already dead it take the main tuner signal board with it too,

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  • Sanyo Master
  • 505 Answers

Chances are that the power board has already died. Check that there are any blown caps and replace with the exact spec's and make. This is an easy $10 fix if you are handy with a soldering iron.

Posted on Jan 02, 2015

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  • Contributor
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Sanyo dp42849 42 inch LCD. when turning on power green power light comes on thats all no sound or picture what do you consider the problem ?

Posted on Nov 27, 2010

  • Chi Chu Dec 15, 2012

    The main Tuner signal board is dead,that the board that take in tv broadcasting signal wire. Tries websites like Shopjimmy.com to buy a refurbish main tuner board for the replacement.

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1 Answer

Power light but no picture or sound


Hi!
My name is Chris.
I have this Phillips Wide Screen TV that didn't have or come with a remote, so I had to go out and buy a universal remote for it today from a BIG W Store. I'm having some technical difficulties & problems with switching and turning it on, but as I use the universal remote to turn on the TV, I'm having a bit of a slight problem with it turning it on, Ok, Yes, it works and Powers on, but there is nothing showing or giving me the indication that there is no picture or sound showing up on this Wide Screen Phillips TV, But there is a little red & green light at the bottome right hand corner that keeps on flashing red when ever I use the universal remote to switch the power on. Is there a possibility, that i can get some help on here, to help me out with any suggestions, is to why I'm not getting any picture or sound showing up on this TV with this universal remote ? Is there anyway that i can maybe get some help with this to help me out with solving my issue with the Phillips Wide Screen TV ?

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The green light at the bottom right hand corner turns on but there is no sound and picture. Sanyo won't help, what can I do?


I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.5_31_2012_3_03_14_pm.jpg5_31_2012_3_03_35_pm.jpg

May 31, 2012 | Sanyo 42 in. LCD TV

1 Answer

I am turning my TV on and the green light is coming on but there is no picture or sound


hello there,

I would check all the input channels on the TV first use the input button on the remote control or the input button on the front of the TV .

if you still have no Picture and sound check all the connections re-do them if needed .

i hope this was helpful don't forget to Rate

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2 Answers

Green light comes on no picmor sound


Hello Afox5, hi, make sure that there are no user controls or setup that are out of order. as a backgrounder, TV of this type mostly has two boards, power supply and main board. On the power supply board, this has two section, primary that deals with mains voltage and secondary that deals with TV supply current requirements, if you see green light mean that power on the secondary section of the power supply board of your TV is working, but it does not mean that the power supplied to the main board is correct, the supplied current produced by the power supply section to the main board that controls sound and picture needs to be checked, so voltages are needed to be checked and loose wiring, or screws needs tightening, are a common trouble, but some go to extremes like replacement of any boards.

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1 Answer

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unplug the power connector to the tv, wait two minutes then plug it back in and try to turn on the set... this worked for me.

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Sounds like a convergance issue. I would have a tech set the convergance for you if you have not done it before, it can be tricky and you could make worse.

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