The EV700 monitors are noted for their bad flyback transformers. Open
the set and check the resistance between the anode (big red wire that
goes to top of picture tube) and ground. It should read open circuit
(infinate resistance). If ok, then check the capactance between anode
and ground. It should read approx 2.75 nano-farads. If below 1 NF or
any resistance, its bad.
Hope this helps...
John