Question about Sanyo DP46848 LCD TV

1 Answer

Why does my sanyo dp46848 screen go dark but whites are too bright?

My sanyo tv works great at times but picture suddenly gets dark except for white and bright colors are glowing...almost look silver. Help!

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  • Sanyo Master
  • 777 Answers

First try to gently push the cable between the main board and the LCD controller (T-CON) board and if that doesn't affect the image then replace the T-con board.

Posted on Jul 20, 2014

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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freetek

Steve Allison

  • 5569 Answers

SOURCE: White screen only on Sanyo DP26648

Your reported symptoms are odd in that most failures are related to the primary power supply but that takes down both audio and video.
The backlight is obviously working (white screen) but it is no longer receiving any video information and this points to a failure of the logic (or the output of the power supply that services logic) used to control pixels on the screen.  Some screens have the majority of the control ICs actually mounted on the LCD assembly and because of very close pin distances used on dense ICs, they are often not replaceable by hand since they were installed by robotics.
I would first suspect (and hope for) the logic voltage output of the power supply to be the culprit. 
If any of you posters have had a repair done and received any kind of a detailed report (you should), would you be kind enough to post it back as a comment to this original message?   

Posted on Jan 16, 2009

Anonymous

  • 1 Answer

SOURCE: TV blinks and then no picture at all

HOW DO YOU CHANGE A LAMP BULD IN A SONY HDTV. MODEL#KDF-E60A20

Posted on Oct 11, 2009

dave1645

Dave Naylor

  • 834 Answers

SOURCE: I have a SANYO DP46848, after i turn on the TV

The ic on the T-con board is failing you could confirm this by spraying circuit cooler on the ic . The T-con board is located in the middle top on the unit has a cable from the mainboard to the t-Con
and two other going from it to the panel
You can try either Shopjimmy.com or TopsElectronics in Haverhill Ma

Posted on Dec 07, 2009

klhcain

  • 1 Answer

SOURCE: My Sanyo DP46848 LCD TV display goes black when turned on.

My mother's was doing the same thing (purchased 2008). Put up with it about 6 months and took it to a repair shop. Bottom line - the display panel has a flaw in and will cost more to replace than the tv cost. See about it now it yours is still under warranty.

Posted on Nov 22, 2010

Chi Chu

  • 8457 Answers

SOURCE: Sanyo DP46848 has sound but

Tv turn now,have a flashes of picture a few sec.than dies have sound left only?Yes,than ur tv have a 2 long boards are dead that call LCD inverter boards.These 2 long LCD inverter boards help the LCD screen to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those 2 long refurbishes LCD inverter boards for the replacement.

Posted on Dec 07, 2010

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