Chosen Solution
I have Acer monitor which was working perfectly. Then my cousin got confused with the wire and powered the monitor with cable which has 12 V AC as a supply. That power cable is used for woofers. Since the pin look alike he inserted it. Now even If i insert the preferred power cable it’s not turning on. Please help me with this. What might be affected ? If it is possible to repair it by myself please let me know :) Thank you
ajay shenoy there is no way to make any kind of assumption. You will have to disassemble the monitor and take a look at the main board for any burned component.