Sanyo DP42848 LCD TV Logo
Anonymous Posted on Oct 27, 2012

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.

1 Answer

Sonny Berry

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Sanyo Master 8,617 Answers
  • Posted on Oct 27, 2012
Sonny Berry
Sanyo Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Jan 03, 2008
Answers
8617
Questions
2
Helped
1722050
Points
23750

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

5 Related Answers

Anonymous

  • 178 Answers
  • Posted on Apr 17, 2010

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

Need s to be replaced the main board.

Ad

Justin Smith

  • 135 Answers
  • Posted on Aug 23, 2009

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

Chi Chu

  • 8457 Answers
  • Posted on Feb 10, 2010

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.

maatmartin7

matt martin

  • 1259 Answers
  • Posted on Dec 15, 2010

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.

Anonymous

  • 1622 Answers
  • Posted on Sep 11, 2011

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

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Hello... i have a sanyo DP42848 i turn it on and 3 sec the screen goes blank and the sound still on..i think it might be the black light converter board..can you point me in the right direction...

You are right, in most of the case It is the back lights inverter board.

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.
1helpful
1answer

Sanyo pro xtrax projector

Lamp LED should be lit when the projector is in Standby. However, the problem you are describing sounds like one of two issues. Either the lamp is bad and needs replaced, or there is a power supply fault. If you have tried replacing the lamp already, make sure you reset the lamp counter or the projector may still not function properly.

does the temp warning light come on when the projector shuts off? if so you may also try cleaning the air vent filters and ensure there is proper air flow around the projector. if that checks out then have the projector serviced as the power supply is likely suspect.
0helpful
2answers

Sanyo dp42848 with soud no pic

There is sone short circuted components at its main board. Contact a technician. This is not a user repairable work.
0helpful
1answer

Sanyo DP42848 screen goes blank after few seconds have replaced main board both converter boards power supply has all voltages screen showes connect all cables or channel up or down when first turn on then...

I had the same thing happen to a DP42848 I'm repairing but I could smell ozone on the left side so I didn't replace anything. I just disassembled the screen and found four flouresent tubes not working! I exchanged them to be sure it was the tubes and it was.New screen is out of the question. I am trying to find a broken used LCD screen somewhere and rob the tubes from it as they just snap in and that might not happen so goodbye tv!
0helpful
1answer

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
0helpful
1answer

Hello, I'm having an issue with my Sanyo DP42848 LCD TV. When you power it on the LCD panel turns on for about 2-3 seconds then immediately turns off. You can power cycle the TV over and over and every...

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.
11helpful
4answers

My Sanyo DP42848 has audio but no picture. How can I fix it?

i turn my sanyo on and its all good for a few seconds then i loose picture but still have sound ,,whats wrong?
0helpful
1answer
Not finding what you are looking for?

524 views

Ask a Question

Usually answered in minutes!

Top Sanyo Televison & Video Experts

 Grubhead
Grubhead

Level 3 Expert

5755 Answers

matt martin
matt martin

Level 3 Expert

1259 Answers

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

Are you a Sanyo Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...