anyone have a pdf of electrical symbols for reference?
i need for understanding of ships electrical system drawings
i need for understanding of ships electrical system drawings
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Hi guys. I have an question. Overall i am currently selling my house ( apartment with 1 room ) to buy some cheaper with 1 room too, and save cash for new pc in autumn 2024.
So i choosed some cheaper apartment in smaller city,but there is coal heating. I dont wanna heat for coal.
So i m thinking to buy electrical heater. And my question . Is this any sense to buy electrical heater when i will be using new pc with rtx 5090 and new intel ( when will be released ) ultra + Psu Seasonic 1600W?
I expect that i will pay more for bills. But i wanna know this. Will using electrical... -
I have a Dell Latitude 5511 laptop, and lately, a faint but clearly audible electrical (crackling) noise comes from the motherboard, similar to the random clicking coming from a mechanical hdd's heads moving inside it.
The laptop shows no signs of malfunction, and clearly this is electrical not mechanical, so my suspicion goes to a dodgy component in the power rails (a capacitor or a coil?). I fear this could develop into a serious damage.
Any advise on how to narrow it down?
The schematic is available here:
Dell Latitude 5510 5511 - Precision 3551 FDV50 FDV51 LA-J282P... -
I already found the boardview, but I need the electrical diagram -
Hello,
I am in the process of fixing my laptop.
I need some help to understand some symbols that are shown in schematic. I have attached a part of schematic doc here that sows them.
The + Symbol (one that looks like a double plus - one inside the other), appears on MB. I believe that represents a particular +ve bus (since they are numbered as FM2, FM4 etc.), but I am not sure. Also, I am bit rusty on these symbols used - particularly on MB.
The O symbol(a doughnut hole) also appears in schematic. I am find with the Ground/Earth presentation.... -
Hy guys!
Today Im posting a few photos from my electrical heater controller.
The thing is that it turn on just right but as soon as the backlit comes in when I press the UP / DOWN temperature buttons the displays fades at such a point that the display fades completely progressively in 1-2 secons, its noticeable the display fading away, then the backlit stays really weak and the power LED goes out.
Everything comes back to normal after a 10 seconds that is the time the backlit should remain ON while i change the temperature setting.
Besides...
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