Help identifying SMD transistor

[Clyde]

Hi, can anyone identify a transistor for me, this is from a LCD monitor
inverter board. The markings on the transistor are DJ R

[Sotiris Antoniou]

"Clyde" <mkdrummeyN...@hotmail.com> wrote in message
news:pVDmo.5381$YS6....@newsfe27.ams2...

>
> Hi, can anyone identify a transistor for me, this is from a LCD monitor
> inverter board. The markings on the transistor are DJ R

Hello .
can you send us the LCD brand-model number.

Sotos.

[Plain...@yawho.com]

And a picture of the transistor or better yet, the package style, and
the location identifier would be a big help.

Now, because I'm smarter than average (Arfa Daily taught me well), the
information you seek might be here: http://www.s-manuals.com/smd/dj

PlainBill

[Clyde]

Sorry mistake in my post, the markings are DJ RE. The Monitor is a
Digimate L-1715 17 inch.

Some research I have found transistors labelled RE that are high
frequency, I wonder if these are the ones, as they appear to drive the
transformer that feeds the backlight.

Only problem I'm having is sourcing them cheap.

[Clyde]

By the way the inverter PCB is labelled IV185030HX. It drives 2 CCFL
tubes so has duplicate circuitry for each side.

The bad side has so far had a few bad components replaced.

[Plain...@yawho.com]

I'm not noted for patience with the obtuse. Read the datasheet.

The parts are made by Rohm. DJ identifies the part number -
2SD2098. The R specifies the gain - R being the high gain version. E
indicates a production date, lot, factory, etc.

As far as a supplier, if you live in the USA you can buy them from
Digikey at $.80 each. Shipping will run about $2.50 IF you specify
first class mail.

Without even looking up the monitor, I can tell you the inverter uses
a pair of Royer oscillators; two transistors are used on each
oscillator. Common failure points are bad solder joints on the
transformers, a failure of the timing cap, or a shorted diode.

PlainBill