Re:"Mag 3200 lcd tv wont power on.when you push power blue light comes on, backlights"
That means that the monitor is in forced standby. This happens when an internal fault is detected. The state is called protection or protect mode.
Try first leaving the unit disconnected from power for 15/20 mins, that will probably not fix the problem, but is a necessary step in troubleshooting. (general indications here Why my TV does not start up and remains in standby.
Guidelines are valid for all TV. Under protect mode TV will act in different ways depending on model)
The unit is repaired testing the internal component.
This TV comprises few boards: a Button/IR board, a digital controller board, a PSU, an inverter.
If you are a repairer,testing willl start from PSU, following voltages on main board and testing the inverter.
Parts can be tested following this procedure : A full
the best way to contact an authorized technician is
by ringing the number listed on the owners manual. Alternatively try Fixya directory here:Fixya directory-
Consumer Products Repair
To get parts try ShopJimmy