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  1. kellys_eye

    Clear tunes model:62 adapter selectable dc voltage

    Sorry to have to report that those devices often use a thermal fuse that is an integral part of the winding of the transformer. If the unit is exposed to a heavy load and gets too warm then that fuse 'blows' and cuts the power to the transformer. Show a pic of the 'other side' of the...
  2. kellys_eye

    Clear tunes model:62 adapter selectable dc voltage

    Reading between the lines and taking no other position on this issue, unless you have access to resources the likelihood of repair is minimal/zero. At the very least you may require a soldering iron, test meter and (potentially) replacement parts. First thing would be to check that all cables...
  3. kellys_eye

    Crock pot modification

    Is it a single resistance? Potentially a dual element? Worst case, at this time, would be to remove the existing electronics and see if it can be repaired. Post pics.
  4. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    What's my valuation got to do with it? Right now I'd pay 1p per unit just for curiosity value! But you missed the point of that post anyway - that device was only the FIRST that came up. There are likely to be many more, if not identical to that one then something else offering the same...
  5. kellys_eye

    Sony RM-YD103

    Did you try new batteries. Have the batteries ever been inserted incorrectly? Is the push key membrane clear i.e. are the keys actually making good contact with the PCB pads under them? etc.
  6. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    https://mix-sig.com/index.php/sales The link to their products is right there on the age I gave - clue..... the button marked 'sales'.
  7. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    On the KISS principal I still think keeping it analogue is the way to go. Sure, try doing it in code and spend weeks/months getting it right and frustration at not being able to identify the problems..... coding a filter? then coding charlieplex of whatever.....??? A quick internet search for...
  8. kellys_eye

    PC LCD Screen Discoloration

    A common cause is to forget you've put a pen or other object on the keyboard and then closed the lid, realised it's there then removed it to properly close it. By that time the damage has already been done.
  9. kellys_eye

    Goodmans Record Player in case

    It's a designated 5V (1A) unit that looks to have a single main controller IC for audio processing and bluetooth operation etc. These devices rarely survive a 12V input as the main IC is easily damaged by over voltage. You'd get away with 6V or even 7V but 12V will kill it dead. Boat anchor...
  10. kellys_eye

    Lowering 54vdc to 48-50vdc

    What form is the 'unregulated' power supply you currently have? There's no requirement to run it at its absolute maximum voltage and obtaining a lower voltage PSU (with appropriate current) would likely be simpler and cheaper than creating a regulation circuit for the existing unit.
  11. kellys_eye

    PC LCD Screen Discoloration

    Two options: 1. Live with it 2. Change the screen
  12. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    So we're now THIRTEEN pages into this thread and various solutions were covered in the original two pages by various contributors. I don't know what else to add. Seems like you're looking for a 'kit'. Have you actually done anything with the suggestions already (long ago) made?
  13. kellys_eye

    PLSSS SEND HELP!!! FINITE STATE MACHINE ANALYSIS

    Homework. Show us your own work towards the solution first.
  14. kellys_eye

    PC LCD Screen Discoloration

    It's seen some pressure or abuse despite your concern.
  15. kellys_eye

    “Making adjustments to the potentiometer’s on a Electronmen EM - 285 DC - Motor speed regulator”.

    That's one way of doing it but your motor rating (200W @24V = 8A) suggests simply setting the limit to 8A would suffice. If you can get a 3 ohm resistor (rated at 10W minimum - but you'll have to be quick about setting the trip level as you properly need a 200W device!) you can adjust the trip...
  16. kellys_eye

    Stopping at a led in a cascading 18 running circuit

    You could wire output #16 of the 4017 string to the clock inhibit pin (via an inverter - simple transistor and resistor job) to stop it at 15.
  17. kellys_eye

    Second WS2812B strip stops MCU

    Have you tried a different piece of LED strip? Could be the 'add-on' section is faulty.
  18. kellys_eye

    Switch set up

    Put a magnet on the bucket and use 'reed switches' as the contacts. https://uk.rs-online.com/web/content/discovery/ideas-and-advice/reed-switches-guide
  19. kellys_eye

    please i need a mentor to guide to learn how to make basic electronic circuits especially led emergency lights, mobile phone chargers, laptop chargers

    Why are people posting replies to 8 month old threads?
  20. kellys_eye

    CDP-CX350 and CDP-CX355 Disc Alignment

    Have you done this? https://www.manualslib.com/manual/1052373/Sony-Cdp-Cx355.html?page=29#manual
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