Question about Sanyo DP42848 LCD TV

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Sanyo dp42848 turns on but blank screen

When I turn it on and the green power light comes on, the screen stays blank. I have tried to change the channel and the inputs, but still nothing. Even tried it with nothing hooked up and the screen stays blank.

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  • Sanyo Master
  • 8,617 Answers

Replace the Main board if your not hearing any audio from the set.

Posted on Oct 27, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

tvhelp-Dave
  • 178 Answers

SOURCE: sanyo 42 inch lcd dp42647 - turns on, video audio pulse on off

Need s to be replaced the main board.

Posted on Apr 17, 2010

  • 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: SANYO DP26647 blank screen, please help

U have LED front power tv light come on and bliking?Than ur power suply it dead.Power supply board must be replaced.Tries Shopjimmy.com,Ebay.com to buy a refurbish power supply board.

Posted on Feb 10, 2010

maatmartin7
  • 1208 Answers

SOURCE: 2 year old Sanyo DP42848

You may have a defective inverter. The inverter provides the back lighting you need to see video. There is good chance the starting resistors have changed values. It would be best to replace the inverter in your case. I would have to have a schematic to find the bad resistors. Thanks for asking and show a few hands of support.

Posted on Dec 15, 2010

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

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If this TV uses a LG display panel, it uses a single, or double inverter board, you may check out that if there is any PUP-UP electrolytic capacitors, if you do change them all.

If it is not a LG panel, you have to change the inverter board.

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There is sone short circuted components at its main board. Contact a technician. This is not a user repairable work.

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Lightening struck 25 yards from our home, power whent out for afew seconds, the tv will not come on. the power green light comes on for 15 seconds then goes out..no sound or picture Sanyo DP42848 LCD...


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

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Hi,
It only tells us that the inverter cable needs to be reseated or replaced. It's not an expensive repair so fortunately you can consult any local certified technician and have them work on this.

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