Re: Dell 3008wfp faulty power supply

I fixed mine too by replacing the V30120S (Vishay) with stps60170ct (ST Microelectronics)

Seen that the V30120S shotky diode was internally shortcircuited as a precaution i also replaced the old 1000uF Capacitor serving the ex- V30120S Diode (D22?) with a dark blue BC Capacitor 1000uF 25v 125 celcius degrees.

Besides this also (re)applied new silicon thermal paste to the top of the short side of the 'T' which is screwed onto the sister sink before the heat transfers to the monitor chassis by means of pad.
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Re: Samsung 2233sw '2sec to black'. Need guidance please.

my 2233sw inverter board photo.

the backside overheated around the ap4206geh so i changed it with 2 ordinary mosfets connecting the D legs together....

Re: Samsung 2233sw '2sec to black'. Need guidance please.

my ap4506geh was burnt. so

Having recapped the main 220vac->300vdc capacitor and all samyoungs + both on near the ap4506geh

transformer both secondaries = 890 ohm.

Now, i can't find the ap4506geh so i replaced it with other to-220 type mosfets, but to no avail. I think there is a specific value both in the ccfl startup phase and continuous operation that the BD9893F is measuring on the COMP (leg 9).

according to my osciloscope hookup as attached in the pictures, there...

Re: Samsung SyncMaster T240 - 2 seconds then black problem

model: 2233bw -
I have a 2 seconds then black problem after replacing an AP4506GEH ((Push/Pull Mosfet dual channel N/P) to-242 SMD 4 + 1 legs.)

With 2x TO-220 packaged MOSFET with similar ratings (30v rdson 0.28ohm/0.36ohm) and connecting the D legs together to make a dual mosfet.
The very reason i did go this desperate path is because couldn't find AP4506GEH or anything similar (several mosfets with same package mentioned in this forum) in the Thai semiconductor market.

The least...