Sylvania 6620LFP 20 in. EDTV-Ready LCD Television Logo

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Posted on May 28, 2009
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Screen looks like a picture negative problem

Sylvania 6620lfp Screen looks like a picture negative problem:

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  • Expert 158 Answers
  • Posted on May 28, 2009
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Joined: May 13, 2009
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Picture tube is weak. You can add a booster the Picture tube. I would replace the set.

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1answer

I have a SYLVANIA LC195SL9A flat screen TV that has suddenly lost picture; audio comes through fine.

This is a fairly old model flat screen. I would venture a guess that the back light circuit bit the dust. Try the "flashlight test". With the set on, and tuned to a channel that you know has reception, shine a flashlight at the screen at various angles and look to see if you can see a very faint picture image on the screen. If so, the back light is gone. As old as your set is, I would recommend a new one rather than repairs.
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HOW TO SWITCH A SYLVANIA 2004 MODEL 5574324 TO A DVD SCREEN FROM STD TV PICTURE

You should use the input selection button at its remote control to select its inputs. Gopakumar Gopalan Google
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I have AT&T UVERSE I have a Slvania Television the model # is 6620LFP and the Serial # is J39526713 AND I HAVE A AT&T Remote I need the codes to the television so that I can program my...

0281,0269. Try these codes. If you wish to get more details; check the sites linked here. It has set-up code list & set-up procedure to many popular brand remote controls. Common set-up codes to check with TVs and other devices are given, in the order of the "device's brand name list" in alphabetical order. Pull up older posts. Surf the site with patience. Surf the sites by type in the brand name to your set, in its search box.
http://electronicshelponline.blogspot.com/
http://remotesearch.blogspot.com/
http://electro-medical.blogspot.com/
http://electrohelponline.blogspot.com/
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My Sylvania 32" just had the entire screen go

My Sylvania 32" just had the entire screen go white. There was still sound but the picture was gone and just the white screen. Any ideas?
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Running colors on half of tv screen

You have bad T-CON board.
See what it looks like here: http://www.shopjimmy.com/catalogsearch/result/?q=Sylvania+6626LCT+

Send me the picture of the screen will be big help: [email protected]

If you are going to DIY and have proper tools and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague
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Manual, and channel select....

Once you get to the Channel Setup menu push the Volume UP button and that will take you to the Auto Preset search that will add in your channels.
For more information refer to page 3 of the manual listed below.

The manual is available from here:

http://www.manualshark.org/manualshark/files/21/pdf_14693.pdf
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Sylvania 27 in tv picture

It sounds like your vertical has shrunk, causing the picture to look squashed. Most likely a bad component in the vertical output stage.
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