How to Repair TFT Lcd monitor goes to stand by mode

How to fix monitor stand by mode

• TFT and LCD monitor goes to stand by mode ,then check 5v missing on AD card and check supply missing at memory circuit or ic, or replace crystal but same available then check complete Horizontal sync. path from CPU to AD card and check stand by circuit.

 Pixel Dead Problem (white and black)

• In this case replace main panel

something colour lines appear on the main panel

• If horizontal or vertical direction  color lines appear on the main panel then replace main panel 

Something addition ray appear on the main panel with display.  

• Replace main panel