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  1. bertus

    Replace Hoverboard MOSFET.

    Hello, Also check the gate capacitance and gate threshold voltage. Also Rds(on) is an important parameter. Bertus
  2. bertus

    Repairing GEM novoPiano DP-25

    Hello, The red connector looks like a 6.3 mm mono connector. On the other side there was likely a black one. The power connector is a IEC C14 input. The IEC C13 is a mating connector: Wich region are you in and what is the mains voltage. I have only seen that type of connector here in europe...
  3. bertus

    Class D SMPs Combi

    Hello, As said, the picture is to small to see anything. You could take pictures of the following sections: Make pictures of the top and bottom of the given sections. Make them about 300 kB each. The red section is the high voltage switching part of the SMPS. The orange section is the low...
  4. bertus

    USB upstream downstream

    Hello, Here is the complete datasheet of the chip that @Rajinder mentioned. As @Harald Kapp said, the chip contains resistors and is asimetric: Bertus
  5. bertus

    Broken uplighter lamp

    Hello, Unplug the lamp. Open the dimmer box. Take a picture of both sides of the printed circuit board. The pictures may have a size of 300 kB to post. When you see a part with 3 legs, note the number. Bertus
  6. bertus

    Broken uplighter lamp

    Hello, Are the fuses of the lamp origenal? If they where replaced by fuses with a higher value, the lamp is not protected well. It is a bad idea to replace a lamp with one of a higher wattage. I assume the lamp has a dimmer circuit. The dimmer circuit is now defective. Most likely the triac in...
  7. bertus

    iFixit guides

    Hello, No, but you can use the find (CTRL+F) of your browser to find a PDF between the 23600 files. Bertus
  8. bertus

    iFixit guides

    Hello, The-eye has a lot of fixit guides: https://the-eye.eu/public/Books/iFixIt%20Guides/ Bertus
  9. bertus

    Looking for help identifying an old Motorola transistor

    Hello, There are more housings for the 2N1959: I see TO-5, TO-18 and TO51. Bertus
  10. bertus

    Looking for help identifying an old Motorola transistor

    Hello, As @Martaine2005 said, it could well be the 2N1959. Here is a short data from the cross reference list: Bertus
  11. bertus

    Anyone here ever programmed an FPGA?

    Hello, Have a look at this page: http://www.asic-world.com/verilog/tools.html Bertus
  12. bertus

    Comedy Thread

    Constant breaker? Thanks wayneh AAC
  13. bertus

    Has anyone ever built one of these?

    Hello, The thread is moved to the Twilight Zone. Bertus
  14. bertus

    Anyone here ever programmed an FPGA?

    Hello, Perhaps this book is something for you: https://the-eye.eu/public/Books/Electronic%20Archive/FpgasForDummies.pdf Bertus
  15. bertus

    Handyman Tips & Hacks That Work Extremely Well (Quantum Tech HD)

    More videos on this channel: https://www.youtube.com/c/QuantumTech/videos
  16. bertus

    Anyone here ever programmed an FPGA?

    Hello, On the following pages you can see some FPGA projects: https://geontech.com/fpga-projects-spotlight/#:~:text=%20FPGA%20Projects%20Spotlight%20%201%20DSP%20Algorithms.,is%20the%20quick%20integration%20of%20Digital...%20More%20...
  17. bertus

    Class D SMPs Combi

    Hello, Resize the picture. The forum will accept pictures of about 300 kB. Bertus
  18. bertus

    Class D SMPs Combi

    Hello, Do you have more details on the amplifier? Wich brand and type? Bertus
  19. bertus

    Anyone here ever programmed an FPGA?

    Hello, Perhaps the following pages help: https://hardwarebee.com/choose-fpga-design/#:~:text= How to Choose an FPGA for your,more money. All FPGA vendors have... More https://numato.com/blog/how-to-select-the-best-fpga-for-your-application/ https://www.pentek.com/tutorials/15_2/fpga.cfm Bertus
  20. bertus

    BY PASS CAPACITOR

    Hello, At the shown position, it could be a snubber network for inductive loads. Bertus
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