I got a Dex Monitor, it's a Daewoo CMC-531X Chassie. It's really a difficult
chassi. The problem was the hor deflection. I tried to unconnect the 50v
rectifier diode and the monitor then goes out of safe-mode. I discovered
later that removing one leg of a big inductor in the deflection can make go
away the protection. I tried to change all the resistor in this part, i
changed the Mosfet IRF640 with a IRF630A but it won't work . Probably the
HOT is fried. This circuit part powers the primary winding of the LOPT. It's
a deflection problem, none of the outputs of the trafo were shorted or
overloaded. With a Digital Multimeter i tested the resistance between the
pins of the (removed) trafo and i discovered that a winding, from pin 8 to
10, is open. I think that because this winding is shorted the rest of the
deflection is shut off. It's really the LOPT ? What may it cost ? I tried to
insert the reference to HR-Diemen, but it don't recognize it. More data :
LOPT Transformer :
DAEWOO FFA73515U 1B0210 S
Monitor :
Dex 2450+ (Dex is a small Italian company who solds remarked Micronica
computer equipment)(This monitor is made by Daewoo in korea.)
FCC ID = ??????????? (i' ve forgot it)

(excuses for my poor english )

--
Intiglietta Mino
VeroFalso Inc.
A volte c'e' a volte non c'e' :-)