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  1. kellys_eye

    Fix A Noisy Refrigerator

    Reason enough to close the thread IMHO.
  2. kellys_eye

    RGB Laser Power Board Issue

    Sounds logical - they are 'only' diodes so can be tested like any other LED using (most) test meters - note, some diode test meters don't have sufficient Vf to show the higher volt drops across green/blue diodes.
  3. kellys_eye

    RGB Laser Power Board Issue

    All the AC outputs are paralleled so if 'one' output (the 5V DC power supply feed) drops to 1.5VAC, why don't they ALL? Maybe they do - you didn't say..... It can point to a poor connection between the plug/socket leading to the 5V DC power pack (resolder all pcb joints and test reliability of...
  4. kellys_eye

    Triac Ramp Up & Down Circuit

    This is usually achieved by pulse modulation of the gate. Google ''slow start" circuits.
  5. kellys_eye

    Electrolytic capacitors: Opinion required please

    That burned board? Pure carbon?
  6. kellys_eye

    Electrolytic capacitors: Opinion required please

    Providing you adhere to the polarity...... and there isn't another fault external to the capacitors.
  7. kellys_eye

    Fix A Noisy Refrigerator

    .....tap, knock, rumble, hiss, pip or tick.....? If it has a fan (some do) do the blades rotate without hitting anything? Is the fan working ok (i.e. bearings)? The compressor is physically isolated from the metalwork by rubber bushings. One may have failed. Similarly, a lot of the freezer...
  8. kellys_eye

    Fix A Noisy Refrigerator

    :D
  9. kellys_eye

    Need help in identifying component

    CLEAN THE AREA!!!!! I, honestly, can't make out squat from those pictures. You seem to have SIX pads that are grounded plus 'others' for in/out - for a 6-pin chip????????? There may even be tracks under the enormous solder blobs that are all over the place for all I can tell. IF your theory...
  10. kellys_eye

    Heat sink calculation

    meaningless to 99.9% of people - what IS that???? meaningless to 99.9% of people - what IS that???? meaningless to 99.9% of people - what IS that???? what diagram? Show it..... If they needed heatsinks they'd have been fitted with them. but WHAT'S THE LOAD? Without schematics this is all...
  11. kellys_eye

    Need help in identifying component

    I'd start by cleaning the solder, flux and carbon residue from the board so you can see what's what first....
  12. kellys_eye

    New house...wired IR sensor...need help

    It would appear that the cut ends would have simply terminated in IR LED emitters that would be placed in front of the appropriate equipment IR ports. They may or may not require series resistors too. Suggest you wire a 'basic' IR LED emitter with a 1k series resistor and see if it works...
  13. kellys_eye

    Heat sink calculation

    Schematic? What you described makes no sense whatsoever.
  14. kellys_eye

    Help for logging

    Or a power consumption meter - like those fitted at your home.
  15. kellys_eye

    Need help in identifying component

    Didn't work very well, did it? :D
  16. kellys_eye

    12v dc to 10v dc converter

    You might struggle with the standard LM7810 regulator as the battery voltage may fall enough to prevent proper regulation. An LDO (low drop out) regulator would be preferred HOWEVER we need more details on the actual charger arrangement as the 10V requirement may not be a strict value. Google...
  17. kellys_eye

    Cheapest bank checks?

    A cheque (check) can be written on 'anything' - literally - so design and print your own! Use your imagination - be innovative or be 'cheeky'!! I used to print them for my son (25+ years ago now! - he's 30 this year) for him to play 'shop' with but, obviously, used fabricated numbers!
  18. kellys_eye

    Need help in identifying component

    Not a TVS diode - possibly a twin MOSFET package but....man..., that's taken some battering! How you can read any data from that package is a mystery! It MIGHT be the same device as the one below it but that's pure guesswork. You could determine it from the schematic but the chance of finding...
  19. kellys_eye

    Cheapest bank checks?

    Show me a link to any site that doesn't take electronic payment. I want it for 'posterity sake'..... I admit to using checks (infrequently) but only to sources that I want to 'deliberately' delay payments to! The 'oh, I forgot to sign it/date it/write the amount/lost in the post...' method...
  20. kellys_eye

    Technics Receiver SA-600 Repair

    Just to re-iterate.... My bold But that aside..... if you have two channels (one working) then comparisons are straightforward. If you've blown the 'other' channel by 'accidental' methods then you've got bigger issues that may require the schematic to resolve. Can you provide a link to the...
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