Search results

Search Forums New Posts
  1. kellys_eye

    Help!

    :cool:
  2. kellys_eye

    Denon AVR-1912 E2/EA

    Thanks for the update. I recall your original issues with getting at the boards - I'd have knocked up some extenders of my own by now (being as how I'm a cheapskate!) - the frustration would have got the better of me.
  3. kellys_eye

    SUPPRESSOR?

    Pictures? Sounds like an in-line filter but a picture is worth 1001 words.
  4. kellys_eye

    Pressure sensor technique

    Use the insides of a cheap digital weight meter (commonly used in bathrooms). But 'not enough detail'.... is the length important? Deflection? Strain? end-point or part-way down?
  5. kellys_eye

    Electronic Dice Timer Circuit

    That's not a 'data sheet' - that's just the pinout. THIS is the datasheet: http://pdf1.alldatasheet.com/datasheet-pdf/view/82377/ETC/7448.html ...and this snapshot of the page shows the 'mode of operation', explains the LT and other pin functions. There are other data sheets that have even...
  6. kellys_eye

    Electronics design and testing company for IoT product

    Nokia, Samsung, Apple, Microsoft etc etc..... .... that would be a phone - with the unwanted functions disabled.
  7. kellys_eye

    Electronic Dice Timer Circuit

    What parts are you 'stuck' on? The general IC description is usually enough to glean what each pins purpose is and the logic states are verifiable from the tables they print. If anything comes from your (current) exercise in electronics it should be an appreciation of data sheets and how to...
  8. kellys_eye

    Denon AVR-1912 E2/EA

    Just curious..... 472 replies and 24 pages..... is this thing fixed yet?
  9. kellys_eye

    MPPT for truck, alternator/solar

    Connect 'any' source to the battery via isolation diodes. This will prevent back-feeding from any one to any other and allows whichever source is the most 'prominent' to do the charging. Low forward-voltage drop and over-rated current handling values should be considered for safety and...
  10. kellys_eye

    PowerCon Connector's / Neutrik

    The datasheets will tell you everything you need to know. The ones you show look to be ok and capable of handling most normal-day loads - not sure I'd use an all-plastic connector though. If you expect rough-handling or outdoor/public area use I'd go for metal versions.
  11. kellys_eye

    LED Matrix Issue - LED line fault

    Defective individual LEDs can be changed - it may simply be pulling the line low (shorted) maintaining a false logic level on the S-R drive output. You can't stop it happening - that would mean predicting the future and lifespan of individual components. You can reduce the happenstance by...
  12. kellys_eye

    Circular?

    Thanks :)
  13. kellys_eye

    SMD 0805 capacitors

    For the individual making isolated repairs it doesn't really matter that components change physically as there's always a way to make the new part fit!
  14. kellys_eye

    LED Matrix Issue - LED line fault

    Schematic? How is the multiplexing achieved? Row/column or serial registers?
  15. kellys_eye

    SMD 0805 capacitors

    A 'proper' SMD reworking hot air gun will be ideal but I suspect you may be referring to a simple DIYers hot air gun? In which case you're likely to blow a whole load of parts off the board! As per @AnalogKid above, more details before you get yourself into bigger trouble!
  16. kellys_eye

    DC 12-36V Lathe Press 555 Motor, Torque vs speed

    I'm with @Minder here - that's a crappy little motor if the 'bone cutting' you plan to do is anything more than just chicken legs...... with the meat removed. Cow bones? Forget it. Such motors are commonly used in battery powered hand drills but they use a reduction gearbox to get decent...
  17. kellys_eye

    Philco Radio Parts Identification

    The resistors will have a tolerance of, at best 20% so your readings are within allowance. The 'potted' capacitors referred to are these:
  18. kellys_eye

    SMD 0805 capacitors

    That's a big no, no in my books. Changing any parameter of a component makes it a 'new' component and the part number should change accordingly. In the case of changing SIZE, this is even more important as a physical size change could ruin any component placement (pick and place machines) or...
  19. kellys_eye

    Switch replacement for lamp

    Dismantling the switch is usually my first port of call too - but for many that come to us with problems like this it is beyond their capacity to do so and we wouldn't recommend doing so except as a temporary fix anyway. Blanking off the hole and fitting an in-line foot or finger switch would...
  20. kellys_eye

    Motomaster Eliminator Powerbox - light issue

    Dodgy switch. You'll have to take the unit apart to fix the fault anyway. Please post some pictures of the insides when you can.
Top