I agree with the thing that looks like a capacitor. But the three pin device could be anything from a diode (yes a I've seen them in that sort of package), to a linear regulator, transistor or mosfet. But most likely it is a transistor, as has already been noted by other members. Either look for the numbers with a magnifying glass, or see if there's another component like it on the board, and try to test it.I have a power supply and I don't know what components are the ones I highlighted in the attached image.
Can someone help?
The 2 terminal beige bit is almost certainly a capacitor - I can't ever remember seeing one with component markings.I thought it is a transistor too. The power supply is bad and I noticed that one of those transistors is shorted on any of its three terminals.
Do you know what kind of transistor is that?
The toroid inductor could be part of a PFC front end - but it doesn't look the right place relative to the layout of the mains in components.That probably is the system power transformer. Immediately below it is the primary side switching device. The long black rectangle below that is the input bridge rectifier. The coils to the left of the bridge are the powerline noise filter, along with the small blue parts that are Y capacitors and the 0.47 uF X capacitor in the middle. The large inductor above that probably is an output choke. All guesswork...
ak
Its on the image in post 7.I have gone up and down that photo five times and have not seen a power transformer
Stay on subject
They're laser-cut and sometimes very faint.There is no code. It is all black.
Good one... also, some phone cameras are able to enhance an image in the infrared, which could reveal additional detailI find that a good camera will pick up a faint number and when you take it and then zoom in on it, it becomes very clear. May have to take it with different lighting sources and angles.
Look again. I can see something, even with the crappy photos.There is no code. It is all black.
by Aaron Carman
by Jake Hertz
by Jake Hertz