My sanyo tv works great at times but picture suddenly gets dark except for white and bright colors are glowing...almost look silver. Help!
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.
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?
SOURCE: TV blinks and then no picture at all
HOW DO YOU CHANGE A LAMP BULD IN A SONY HDTV. MODEL#KDF-E60A20
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
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.
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.
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