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
  • Loretto
    Samsung SMPS BN44-00339A
    by Loretto
    Hi all,
    this unit comes from a samsumg LCD TV LE32C530F1W which stopped working after making a strong noise like something was exploded inside of it.
    I opened it and found that fuse FP801S was blown, capacitor CP814 was completely disintegrated and MOSFET QP801S was shorted.
    I replaced all of them and instead of the fuse I connected a 100 Watt bulb. Then, without connecting it to other TV boards, I switched it on, but the bulb begun to blink.
    I thought that maybe the bulb was somehow interfering with the normal operation of the power supply, so I replaced it with a fuse,...
    03-29-2025, 08:30 AM
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