Check the sync board for bad connections first.
and confirm the OSD does come up.
Caps could be a problem but not a big deal with this chassis.
I wouldn't reset to factory setting unless i thought my eprom
was corrupted and if it was i would replace it. the factory settings
are not exactly the best adjustments for the monitor
only a start for making adjustments.
and if i was going to reset it i would enter into the factory menu
and copy down the data value first, so i could bring them back
after replacing the eprom.
It not only brings the color or gamma setting to basic setting it throws
off the geometry, trapzoid.pin balance,pincushion,tilt screen and more
and will have to readjust them all.the factory is using certain test screens
not game play for adjustment,most shop don't have this kind of
equipment..Hi current parts are likely to fail not low current parts from my experince
The Mosfet switching transistors i would suspect after soldering
connections and resetting plugs around the board.
Location may be q216 and q217 or the two transistor next to each other
on small heatsinks near the front right of chassis and a leaky predriver trans before them
with correct sync pulse the micro decides what feq the set needs to be and the
small transistor before it like Q210.q211,q212,just parts to check
the chassis should cover most games resolutions so if it doesn't
some parts have failed. Good Luck with the repair!