If you could wait, getting one of those ‘unknown component testers’ would help you!
David Collins > On 25 Dec 2017, at 5:27 am, Rob Jarratt via cctalk <cctalk@classiccmp.org> > wrote: > > I am continuing work to reverse engineer the schematic for my H7826 PSU. I > have removed one of the daughter cards in order to draw its schematic, but I > can't identify some of the surface mount components on it. I have posted a > picture of it here: > https://rjarratt.files.wordpress.com/2017/12/50-19530.jpg > > > > The ones I can't identify are: > > > > 1. The component with two wide pins that looks like an IC > approximately in the middle of the board. It is marked M106 (or it might be > AA106) and 91813 underneath. I think it may be a resistor, but I am not > sure. > > 2. Just to the right of this is another much thinner two-pin component > which is black on top with a kind of white notch. I have no idea at all what > this is. > > 3. The three 3-pin black components to the left of the first > component. Two of them are marked "2T L" (or is that "ZT L"?), one appears > to be marked "2X I" (letter "ih", not letter "el"). I guess they are > transistors, but they may not be of course, and I don't know their pinout. > > > > Any help with identifying what these are would be very helpful. > > > > Thanks > > > > Rob >
