Digimate L-1715 inverter part ID needed

Hi. Just got a Digimate 17 inch monitor with no display. Found a bad
shottky diode on the inverter PCB so I replaced that and the fuse, now I
have a screen, however after a few minutes it starts to flicker badly,
on the inverter the transformer on the side I replaced the diode is
getting hot. After a bit of tracing I have found a small SMD (8 pin,
looks like an IC) which is shorted to all pins. I am unable to read the
tiny writing on top and can find no information on what the part is.
Does anyone have any idea, or possibly a schematic. Judging by the way
it is connected (there is an identical one on the other side of the
inverter, dual lamp) I think it may actually be a special kind of zener
diode.

Anyway some numbers, the monitor is a Digimate L-1715 ( I believe the
inverter is used in a variety of other brands ). The inverter PCB is
part number IV185030HX. The part I need is identified as Q3 (maybe a
transistor?)

Hi. Just got a Digimate 17 inch monitor with no display. Found a bad
shottky diode on the inverter PCB so I replaced that and the fuse, now I
have a screen, however after a few minutes it starts to flicker badly,
on the inverter the transformer on the side I replaced the diode is
getting hot. After a bit of tracing I have found a small SMD (8 pin,
looks like an IC) which is shorted to all pins. I am unable to read the
tiny writing on top and can find no information on what the part is.
Does anyone have any idea, or possibly a schematic. Judging by the way
it is connected (there is an identical one on the other side of the
inverter, dual lamp) I think it may actually be a special kind of zener
diode.

Anyway some numbers, the monitor is a Digimate L-1715 ( I believe the
inverter is used in a variety of other brands ). The inverter PCB is
part number IV185030HX. The part I need is identified as Q3 (maybe a
transistor?)

Can anyone help?

On Fri, 27 Aug 2010 07:56:07 +0100, Clyde
mkdrummeyNOSPAMPLEASE_at_hotmail.com> put finger to keyboard and
composed:

Hi. Just got a Digimate 17 inch monitor with no display. Found a bad
shottky diode on the inverter PCB so I replaced that and the fuse, now I
have a screen, however after a few minutes it starts to flicker badly,
on the inverter the transformer on the side I replaced the diode is
getting hot. After a bit of tracing I have found a small SMD (8 pin,
looks like an IC) which is shorted to all pins. I am unable to read the
tiny writing on top and can find no information on what the part is.
Does anyone have any idea, or possibly a schematic. Judging by the way
it is connected (there is an identical one on the other side of the
inverter, dual lamp) I think it may actually be a special kind of zener
diode.

Anyway some numbers, the monitor is a Digimate L-1715 ( I believe the
inverter is used in a variety of other brands ). The inverter PCB is
part number IV185030HX. The part I need is identified as Q3 (maybe a
transistor?)

Can anyone help?

I'm confused. At one point you say the mystery device is a special
zener diode, then you go on to say that it is a transistor. Are you
talking about two different components?

IME, 8-pin smd transistors are often MOSFETs. There is usually one
gate pin, and several drain and source pins.

Is there a control IC on the inverter board? If so, then its datasheet
may have an application circuit that is similar to yours.

- Franc Zabkar