ral:
Another thought:
Many monitors use a Field Effect transistor (FET), a capacitor, and sometimes
a diode in a regulator circuit that supplies the primary of the flyback
with its operating voltage. This voltage, when it leaves the primary,
flows through the collector of the HOT. It is fairly common for the FET
or capacitor to go bad which causes the voltage to go up and also blow
the HOT. Check it out before you install the new HOT transistor.
John