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I have a sanyo dp37647 hd tv and ive got a pretty bad dark spot that goes down the left side of my tv and there is another one forming in the upper right side and one going across the middle.I just need any ideas on what the problems might be and how to fix it.

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Sounds like a cracked screen or defective LCD panel, pictures would be great

info@back2lifeelectronics.com

Posted on Nov 27, 2012

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  • 3 Answers

Solved: Over the course of time, the cheap plastic frame and stand starts to put uneven pressure on the LCD causing it to malfunction. I guessing this could be heat related. Definitely a design flaw. Remove the bottom of the stand and very slightly loosed the small screws around the back of the frame allowing the LCD to have some wiggle room. After I did this, it worked. It will still misbehave if you stress the LCD, but normally, it shouldn't. I am going to try to mount the TV using the rear VESA mounts & see if it will still work.

Posted on Mar 31, 2013

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

geemarie
  • 876 Answers

SOURCE: Big grey/black spot

Is it a fuzzy spot or an actual hard edged black spot?LCD televisions can have a loss of pixel display- most very small. Was the TV hit with something or dropped against something (the screen)?

OR Try this first:
Black box appears on the screen
• Closed-captioning might be on. Check the Analog or Digital Caption option in the Setup menu.

Please let me know if your problem is solved. Thank You.

Posted on Aug 15, 2008

  • 12 Answers

SOURCE: Light green and pink spots on my hd tv!!!

(Yes, this is a cross-post from another thread...I just wanted to help everyone on the various threads on this issue...please do not flame me)
Ok...once and for all I will explain the fix (in detail...which has been missing)...

1) Firmware updates do not fix this problem. I had this problem, and updated my firmware to the latest versons without success. Also, cleaning the light engine (or any other part) does not fix this problem. If you cleaned your TV and your problem disappeared, you had a different problem.)
2) This repair requies a special tool from Panasonic. The tool is part number LSUQ0100. It is light grey in color, and is roughly 7" x 5" x 1" in size. It has diagnostic lights on it, and a button to press to start the procedure. This tool is used to reprogram your EEPROM. Again, this is VERY different than flash upgrading your firmware.
3) To repair the TV, the repairman must remove the lower back of the unit and plug the long, 5-wire connector (5 individual wires terminated to one female connector end - reminds you a bit of an old-style CD-ROM audio cable used in computers) into a male recepticle on the light engine.
4) The procedure takes roughly 6-7 minutes to complete. The TV remains on during the procedure (yeah, I was a bit surprised too). About mid-way through the procedure, your colored ball-shaped blotches will just disappear....no on-screen progress bar, no bright flash, the spots just disappear in the blink of the eye.
5) CALL PANASONIC!!! They are standing behind these TVs, and are covering these in-home repairs free-of-charge - EVEN IF YOUR TV IS OUT OF WARRANTY. Mine was out of warranty by over a year. The Panasonic rep was very kind, but did explain that this is the only repair for these TVs that they will cover out of warranty, as it was a defect in the manufacture of the unit - all other repairs are at the expense of the customer.

Good luck to all - I hope this helps some of you!
Cheers to Panasonic for standing behind their products like this....you don't see that very much these days!

Thanks,
Chris

Posted on Sep 25, 2008

dave1645
  • 834 Answers

SOURCE: Screen has black spot in corner that spreads to entire screen

one of the floresant bulbs has fail there is a place in Haverhill Ma called Tops Electronics that can fix you up really quick but you will have to ship it to them they do good work there
their new name is pinnacle solutions group over 30 year serviceing

Posted on Sep 18, 2009

  • 441 Answers

SOURCE: My 2 year old 37in Toshiba 1080 LCD HD tv has a dark shadow

it sound like one of the drivers is going out, not much you can do with out service

Posted on Oct 27, 2009

  • 1 Answer

SOURCE: I have a SANYO DP46848,

Ray I have just about the same issue . But my only problem is the thin black lines. Do you think cleaning the flex cables coming off the Tcon will help at all? This is the same model DP46848

Posted on Oct 02, 2012

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I just replaced bulb with new and after a day there is a dark spot on the screen


I have the same TV - I have a dark spot in the upper left hand corner. I have always thought this TV was dark. Be sure to get OME lamp. Cheaper ones are not worth it and can damage your TV more.
dlplampsource,com--Just a note if this ever happens to you. TV would not come on in the AM-Had no picture, but had sound. It was not the lamp, but the safety switch. It's blue and at the bottom of the lamp housing. As soon as I flipped it and replaced the back cover, the TV came on.

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I have a dark spot on my samsung full hd tv (not LEDtv)


You could possibly be dealing with a failing LCD panel. I've seen many of the dark spots in Samsung sets and it's due to defective LCD panel tabs. The only true fix is the replace the panel which would cost more than a new TV !!!

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Coloredeagle@hotmail.com I have a sanyo model dp37647, when powered on, the screen flashes and looks like cracks in it, then it goes black.


If I didn't know any better, your description makes it sound like this TV fell over onto it's back.
You will probly have to replace the set, since I would personally recommend a new Power supply board and perhaps, LCD Display.
Both of which would cost close to what you paid for the set to begin with. Buy a nice Vizio! :)

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I have a sanyo TV not a flat one but cant find manuel or the model on the TV - how do i retune it?


You can find the manual at http://www.retrevo.com/support/Sanyo-DP37647-TVs-manual/id/7048bh144/t/2/

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bad screen driver boards, it can sometimes be corrected by tapping it on the side that is affected NOT ON THE SCREEN I MEAN ON THE TOP. The only way to cure the problem is replacing the panel.

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Sharper image universal remote


1) Turn on TV;
2) Press TV on the remote control;
3) Press and hold SETUP, until the red LED indicator blinks twice;
4) Enter 9-9-1-1 on the numeric keypad;
5) Press POWER on the remote;
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Feb 17, 2008 | Televison & Video

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