Question about Sanyo DP42849 42 in. HDTV

1 Answer

Dp42849 green power led comes on 15 sec. goes off then on, no pic.no sound

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  • charles sharp
    charles sharp Dec 16, 2012

    I replaced the inverter board, still the same, tested inverter plug on power board, it says 24v. i tested 52v. do i have a bad supply board?

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  • Sanyo Master
  • 74,106 Answers

Check its back light inverter board for any short.

Posted on Dec 09, 2012

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Posted on Jan 02, 2017

  • 586 Answers

SOURCE: dp42740 had bad ss board replaced same symptem

Hello there,
It is quite obvious that it is not the ss board that need to be replaced or the board was not replaced properly. Have the lamp replaced. Then check for bad capacitors on the power panel, then you check on the main board for bad capacitors also.
After doing this. Ensure there are no cold joint on the main board and the power board also.
That should solve the problem for you. All the best. Elect_Comp

Posted on Sep 06, 2011

diodeic
  • 1622 Answers

SOURCE: lightening struck 25 yards from

Hi,

power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
Hoping that this will help out in solving the problem

Posted on Sep 11, 2011

SOURCE: sanyo DP42849 no picture but has sound

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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1 Answer

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The green power LED probably is merely indicating that power is getting to your TV but the internal power supply is failing as evidenced by the loud "pop".

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1 Answer

Sanyo DP42849 no picture but has sound


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.

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Will not come on it worked fine earlier.


Plasma and LCD TV sets are prone to having capacitors in the power supply section fail. This is the most likely cause for the probem you describe. When capacitors fail your will commonly see one or more of the following symptoms.
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  • TV is making a clicking noise.
  • TV takes a while to come on
  • Screen is very dim or flickers.

Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.



ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

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SOUND AND PIC GOES OUT FOR 30 SECONDS, THEN PIC COMES BACK THEN SOUND. IS THIS THE LAMP OR THERMAL FUSE OR WHAT.


The lamp is going bad. If it was the thermal fuse it would not be intermittent. It is very common for some Sony sets like yours to do exactly what you describe when the lamp is going bad.

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first you need to turn the power off to the r666od (or otherwise known as the HC60NG) for 10 secs, then turn back on. then hold the grey button in for 15 secs. release then hold in for a further 5 secs.

go to the honeywell cm61 press the off button. hold temp up. temp down and prog 1 in for 3 secs until the dipslay goes to INST. at this point release all 3 buttons then press the i button until a beacon starts flashing.

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1 Answer

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