Infrared or X-ray!

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  • h0m3w0rk
    Kermi IRT 10 Towel Dryer Infrared Thermostat
    by h0m3w0rk
    Hi everyone,

    I have a Kermi infrared wireless room thermostat that simply does not function as it should.

    The display turns on sporadically or remains completely off. When the display is on, I can use the buttons (rubber domes) and navigate through the menus. Sometimes the display shows plausible text but does not respond to button presses. In other cases, the device is entirely inactive.

    After detailed measurements, I found 5V almost everywhere across the board, which indicates a stable power supply. However, the mentioned issues persist.

    Based...
    11-06-2024, 05:31 AM
  • Document Archive
    Apple MacBook Pro 17" Infrared Board 820-1959 IR Schematic
    by Document Archive
    Apple MacBook Pro 17" Infrared Board 820-1959 IR Schematic...
    10-27-2024, 07:11 AM
  • Francesc V.
    Infrared thermal imager HT-02A
    by Francesc V.
    Hi:

    I have this thermal imager that stopped working. It....

    - Switches on
    - Displays "normal" image
    - It doesn't show any thermal image

    Not sure where to start looking at.....any idea/suggestion?

    The asset has 3 different PCBs.


    Regards,
    Francesc....
    11-28-2022, 06:06 AM
  • Kg74
    Celestron Telescope Motor Controller SMD Cap ID help
    by Kg74
    I have a Celestron Nexstar 11GPS scope that has a failed Motor Control Board. I need help identifying the SMD capacitors.

    The schematic I have found does not list the values, or for most of the caps, there existence. From what I have read, these SMD caps are most likely "decoupling" caps and are .01uf.

    Anyone with motor control experience have any ideas on how I can identify these SMD Caps? The rest of the components can be visually identified....
    02-27-2021, 10:50 PM
  • Ugur87
    MacBook Air M4 A3240 Brand New Water Damage no Image
    by Ugur87
    I have a brand new 13.6-inch MacBook Air M4 that was only used for three days and now has water damage. A glass of water was spilled over it. I examined the motherboard and there was only water next to the display connector. I cleaned it with isopropanol and the components look clean. The MacBook obviously turns on and draws 20 volts from the power supply. The keyboard backlight comes on, but the display remains black. Where should I best start? Even when I shine a light on the display, I don't see any image. I have all the tools I need, including an infrared camera. Where should I best start?...
    08-28-2025, 01:09 PM
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