Hello,

I have a Samsung 193 19" LCD monitor that has a faulty CCFL inverter.
The SMPS and inverter are built together on the same PCB. The inverter
normally drives 4 CCFL's and it had a blown 4A fuse; so I changed the
fuse and it blew again. Closer inspection of the bottom of the board; I
noticed a 8 pin IC (MOSFET?) was burnt and shorted.

There are a total of four of these IC's. The other three tested OK and
I replaced all four bad 47uF caps near the IC's (some where high ESR).
I checked for shorts on the four HV transformer...there are none. The
cold cathode lamps are also fine.

Does anyone know what these IC's are and where they can be found? or a
possible substitute?

The numbers on the IC:
4600
AD3S45

They are the SSOP 8P package type.

Thanks!