description the fault:
TV work fine with 4K UHD or HD too, toll picture no pixel fault, but if you put it in stand by or turn it off from wall let for 10 second less or more and turn it on the screen will start from the middle point became white till whole the LCD became white only. its look like screen discharge .. sound are fine
if you leave it after shutting down more than 1 minute or more it start normal first with HISENSE green words then color smart sign then start absolute toll picture and sound
Testing :
1- all voltage and current measured by both status are the same
2- LVDS signal (oscilloscope) measuring same wave signal at both status
3- Ribbon signal out on T-CON remain the same at both status
3- No damage or force on any parts or body include the LCD
4- Firmware updated and downgraded no change
5- Service menu to clear all . no change
i think its somethings related to the LCD self, by examining the Firmware update by extraction it, i didn't find any option of NFC which related to LCD driver.. i tried to look at other series TV of the same brand i could find section at update firmware section for LCD driver ..
Any one faced this before.. or any had any idea ... or collection of LCD screen driver of this Hisense
TV work fine with 4K UHD or HD too, toll picture no pixel fault, but if you put it in stand by or turn it off from wall let for 10 second less or more and turn it on the screen will start from the middle point became white till whole the LCD became white only. its look like screen discharge .. sound are fine
if you leave it after shutting down more than 1 minute or more it start normal first with HISENSE green words then color smart sign then start absolute toll picture and sound
Testing :
1- all voltage and current measured by both status are the same
2- LVDS signal (oscilloscope) measuring same wave signal at both status
3- Ribbon signal out on T-CON remain the same at both status
3- No damage or force on any parts or body include the LCD
4- Firmware updated and downgraded no change
5- Service menu to clear all . no change
i think its somethings related to the LCD self, by examining the Firmware update by extraction it, i didn't find any option of NFC which related to LCD driver.. i tried to look at other series TV of the same brand i could find section at update firmware section for LCD driver ..
Any one faced this before.. or any had any idea ... or collection of LCD screen driver of this Hisense
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