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Recent content by quanttrom

  1. Q

    Dell M1330 Model: PP25L - motherboard schematic

    If you un-soldered it yourself, you can solder it a new replacement one. There is nothing hard about it. These caps are non-polarized, eg it doesn't matter in which direction you solder them they will work. If I recall correctly it's a filtering cap for one of the power rails. A missing cap...
  2. Q

    Dell M1330 Model: PP25L - motherboard schematic

    Start here. There are plenty of manufacturers and caps to choose from. Capacitors | Ceramic | Digi-Key It is a filtering cap so it isn't a big issue if the value is a bit off. I assume the laptop will work without the cap as well but it is a good idea to have it there.
  3. Q

    Dell M1330 Model: PP25L - motherboard schematic

    I replaced a C10 that was actually on the motherboard itself. It is right beside the connector that mates the charging board and the motherboard.
  4. Q

    Dell M1330 Model: PP25L - motherboard schematic

    Hello, I just went and did some debugging on my motherboard. I was putting in about 0.5W and feeling around the board with the back of my fingers. I was planning on increasing the power but I quickly found the offending cap. C10 as expected. C10 should be a 10uF 25V 1206 X5R . I only had a...
  5. Q

    HP1650B logic analyzer vs Open Logic Sniffer

    I have the opportunity to buy a HP1650B logic analyzer and I am wondering if it is worth it. I currently own a Open Workbench Logic Sniffer. I have used it a couple of times but it feels more like a toy rather than a real world useful logic analyzer. From it's page I notice the Open Logic can...

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