Why? It seems completely unnecessary.

Lenovo E560

  Please help me identify this SMD component type. In diode mode I read 1.1V and 1.8V respectively across terminals with a multimeter. I was expecting it to be some kind of poly fuse.

TX

Searching the text came up with no results. What would be the next step?

I am going to change out my capacitor on my film camera Fuji Panorama One Touch MO OP What capacitor is this? Can someone give a link to buy it? Like on Aliexpress Im based in Singapore It looks like its 330v16 something I thought it is 330v160uf but when I search it online

The size doesnt match I need the correct size so it can fit Here are the photos

Photo Flash

i need help pls

I work as DevOps and I have been self teaching myself EE for the past year so I could build a hardware device I hope to start shipping and selling next year.

I dont know which device I should get since I am technically beginner but my testing equipment needs to serve me from early learning all throughout to product launch.

Device will have BT, WiFi, IR and a Spectrometer as well as possibly EEG, EOG in the future.

Hi. My electronics is rusty and given how far AI has come so quickly, I thought I'd just cheat and ask one to design a quick circuit I need. But having done a search I couldn't find anything at all that actually designs circuits and outputs proper circuit diagram images rather than "ascii art"? ChatGPT, Gemini and Perplexity AI seem to all at least attempt to design it, and then output as ASCII but I can't make heads or tails of the diagram, I'm guessing it's basically hallucinating every single one. But I know narrow AI is still almost always more competent at its task than LLMs are at that specific task so does anyone know of any good AI for generating fairly simple circuits? Free would be good. It's just a few pots, a few gates, maybe a couple of diodes, a few capacitors and maybe a few other things I haven't thought of. I'd be surprised if there isn't AI that can do it right now given how far it's come in so many other specialist areas?

If a potentiometer is just a variable resister, why does a potentiometer have three legs/lugs instead of just two like a fixed resister? I know one is in, one is out, and one is ground - but why is the ground necessary?

If I’m replacing a fixed resister with a trim pot, can I ignore the ground leg?

I had come across a beautiful TP-Link TL-SL3428 V2.2 (pictures provided), it looked to be in great condition. It is not in great condition. Every chip that seemed half important was hit with a chisel, even ripped what I named the ethernet interpreters [1] (i do not know the name of the component), for the sake of privacy and security. I am bent on fixing it.

My questiones are:

1. If I find all the broken and missing components can I solder them back on the board, so that the switch will work (I suspect I'll have to flash it)?

2. Does any one have the names of the missing chips? I couldn't find the names nor a picture of a full board (schematics and part lists are kept behind closed doors) , either would help.

3. I have a heat gun but not the solder to go along with it, what solder should I use for this grave task.

All the broken components:

1X 88E6185-LKJ1

3X 88E6095-TAH1

2X 88E1111-RCJ1

1X 88E6218-LG01

1X K4S561632H-UC75

1X JS28F640

1X LC4128V

Thank you all in advance, your help is much appreciated. If something else is needed please ask.

P.S. English is not my first language, so i apologise for any spelling and grammatical mistakes.

Ids current flows even though no voltage is applied at the Gate Terminal. It flows from Drain to Source in both cases (no voltage applied or voltage applied at G). Am I missing something here, or is it actually broken?

Hey😁 I don't know anything about circuit boards but I've been asked by a family member to try sell some electronics. I can't seem to get an exact name for this PCB. Google tells me it's a WATERS PCB. Could anyone identify it or show me where I go to identify it?

If there is can someone tell me what ones

As the photos show, I am not getting a continuity reading on my multimeter when testing this working bulb. Even when I switch the poles on the terminals it comes up with OL.

When just touching the multimeters wires together I do get a reading so the multimeter is working as far as I can tell.

I know that the bulb is working because I tried it in a different lamp

Trying make sense of a little kit with even smaller amount of knowledge. looking at the pcb, chip and chip holder I think this is how they should be mounted with the dimple at the top / 12 o'clock. I thought the dot on the pcb was used to orientate the chip but there's no dot on the chip.

tl/dr: is the chip and holder the right orientation as in the picture?

Video Source: https://youtu.be/VYZcPrOuGKg

I bought a magnetic levitation kit and there were no instructions. Does anyone have any idea where I might find something? The seller was not very helpful. I have a degree in electronics, but would prefer not to fry everything.

Some of the components are pretty obvious, but I'm looking for any input that might be useful.