Vf61 linux LCD Drive

We are driving 7" (800 x480 Winstar LCD) from Vf61(Linux). The circuit we use is designed with reference for following link

We are facing following issue

  1. When we Try to Power on the system LCD Does not shows Display (AVdd Shows around 3V)

  2. If we power on the system(LCD Disconnected) and hot plug the display after system is powered Display works fine and (Avdd shows around 10V).

We checked the adapter board in another LCD Drive and it doesn’t have following problem. What can be the problem ?

Aneesh K N,

Hi Aneesh,

I guess the problem could be related to the Display Driver IC: it may have gone faulty or it is not starting.
Please share the display datasheet and schematics for the LCD driver circuit.