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  1. Martaine2005

    Measuring Diodes in Cct.

    Hi Michael, you should really lift a leg out of circuit for accurate measurements. But we all do a quick check like you have done. 0.3V-0.7V one way and nothing the other suggests the diodes are ok. I test zeners out of circuit and apply voltage from a bench supply. But you can sort of check...
  2. Martaine2005

    TV celebs

    Ah, so that’s where he went!. Now you see me.:)
  3. Martaine2005

    Two microcontrollers switching power sources

    Why can’t you have one (1) 5V source powering both rather than a separate source for each? Martin
  4. Martaine2005

    Power Supply Clarification

    As most items are ‘centre positive’ pin 1, it may be better to do it that way. This diagram has ‘negative centre’ pin 1. The battery will be your main power supply. Martin
  5. Martaine2005

    Power Supply Clarification

    Why an IC? Why not a switch with a diode on each power supply? Martin
  6. Martaine2005

    Audio cable vs. video cable?

    Great, keep us posted. Martin
  7. Martaine2005

    Ps4 dualshock 4 controller thumbstick goes from analog to "digital" signal

    If you changed a potentiometer, double check your soldering for a bridge across two contacts. Also for a loose solder pad. Moving the stick and going from 0% to 100% may indicate a short like a switch rather than a pot?. If you have a multimeter, you could check voltages on a working controller...
  8. Martaine2005

    Ps4 dualshock 4 controller thumbstick goes from analog to "digital" signal

    You could try this option . Martin
  9. Martaine2005

    Ps4 dualshock 4 controller thumbstick goes from analog to "digital" signal

    Actually, I think calibration is on the PS5. PS4 is a reset button on the back of the controller. Have you tried the reset button? Hold it for 3-5 secs then connect it via USB to console. Martin
  10. Martaine2005

    Ps4 dualshock 4 controller thumbstick goes from analog to "digital" signal

    Have you tried another ‘thumbstick’ to rule out a faulty one?. “Slippery” as in drifting is normally the thumbstick. Have you done all the calibration modes? Martin
  11. Martaine2005

    Carbon ribbon cable repair

    As much as I know how difficult and frustrating it would be to attempt a fix, I’d give it a go. But I would go diagonally rather than straight across. Then bridge each with thin magnet wire. Then after a few days I’d be searching eBay for second hand keyboard. Martin
  12. Martaine2005

    Audio cable vs. video cable?

    A simple option is to try it. My reverse cameras have RCA audio cables with no interference at all. And that’s with a vehicle engine running. No problem for a bicycle. Martin
  13. Martaine2005

    Ps4 dualshock 4 controller thumbstick goes from analog to "digital" signal

    Are you sure the website is not playing up?. Does the controller work properly on the console?. Martin
  14. Martaine2005

    Audio cable vs. video cable?

    If the camera has a TRS (tip, ring, sleeve) connector, then a headphone extension will work just fine. It should look like the left picture. Martin
  15. Martaine2005

    Laptop Short causing weird symptoms

    Just out of interest, remove the blob of solder and check the capacitors in that area for a short to ground. Martin
  16. Martaine2005

    Laptop Short causing weird symptoms

    Perhaps a picture is worth a thousand words!. Never bypass something with solder if you don’t know what it is or what you are doing. Almost guaranteed to destroy more. Martin
  17. Martaine2005

    AA rechargeable batteries 1.2v no good

    My (older) sets all run from 4.8v (4 x 1.2) and 9.6V (8 x 1.2). What set have you got?. 6V receiver? Martin
  18. Martaine2005

    holder glues on cheap boards

    Use aquatic silicone. Never heard of static in caulk or silicone let alone a shock!. Are you sure it wasn’t static on metal frames or similar? Could have been a very dry humid day and you were on metal step ladders?. Martin
  19. Martaine2005

    Carbon ribbon cable repair

    Do both ends have connectors? Or is one side soldered to the keyboard? Martin
  20. Martaine2005

    Wireless speakers

    Apparently BT 4 is max @ 60m and BT 5 @ 240m!. No idea if that’s true or not. Martin
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