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  1. Martaine2005

    Fascinating photonicinduction

    Photonicinduction has returned to Youtube. This video is fascinating (for me) about rectifiers. Playing with mercury in his living room. www.youtube.com/watch?v=2pDcv6g1FE0 Martin
  2. Martaine2005

    Trouble Identifing Zenor Diode on automotive ICU board

    Wow, a reply exactly 6 months to the day!! If I'm honest, you could have replied a lot earlier. Martin
  3. Martaine2005

    Shaky Image Samsung QLED 55" TV

    How about showing us some photos of the old power supply? You never know, a cheap repair gives you a spare! Martin
  4. Martaine2005

    Device turns off within a second of being switched on.

    Very doubtful. How do you know the PSU is functioning correctly? just by the voltage?. Have you measured the output when you immediately turn the console on? (before it switches off and has a load). Martin
  5. Martaine2005

    MP3 player hum

    I think the general concensus is to not use a breadboard for this type of circuitry. Or expect some kind of noise that should disappear when assembled properly on a PCB. Well you need to get one to start the process of elimination. You don't have to make a permanent circuit, just solder the...
  6. Martaine2005

    Digital Multimiter issue

    Have a watch of this video. It will give you an idea of the type of protection in many meters. It might also give you an idea of what to check. Martin
  7. Martaine2005

    Woo-Woo 240V AC System

    I too have very high Volts per metre in my dining room. My ELF meter was off the scale.. I had a brain wave and it worked fantastically. Martin
  8. Martaine2005

    Help diagnosing AC Sliding gate controller stops halfway

    Well done!, Those cheap component testers wont be able to check every component or value. They will however show 'unknown or damaged part' for many components. Always better to have a few different types of testers for that very reason. Martin
  9. Martaine2005

    Workzone 18v charger.

    Can you open the charger and take some clear, close photos of the PCBs?. It might be an obvious easy fix. Martin
  10. Martaine2005

    Help diagnosing AC Sliding gate controller stops halfway

    Going back to your first post and photo of the PCB, does this capacitor look domed/swollen? or is it just the photo angle? Martin
  11. Martaine2005

    Custom Clock

    What research have you done so far? There are thousands of different ways and types. Google is full of ready made and kit versions. The best way is the correct way. One example circuit from Google. Martin
  12. Martaine2005

    Help diagnosing AC Sliding gate controller stops halfway

    Upon further reading, your units limit switch looks to be similar to this, so the set up would be very similar too. Make sure the 'stops' on the gate are in the original positions etc. Martin
  13. Martaine2005

    Help diagnosing AC Sliding gate controller stops halfway

    I think the 'relearning' is their technical term for setting the limit switches again. I downloaded the PDF (here) of the units specs but have not found a set up guide yet. Martin
  14. Martaine2005

    Help diagnosing AC Sliding gate controller stops halfway

    I think Steve and Edd are onto something with the limit switches. Reading a little on how these work, some systems need 'relearning'. Also, a lot of problems are caused by the photocell. Do you have a photocell sensor on yours? or a digital display to indicate an error code? Martin
  15. Martaine2005

    Help diagnosing AC Sliding gate controller stops halfway

    You mention no obstructions on the rail. Does the gate stop in exactly the same position or is it hit and miss?. I would think by your description, that it's a mechanical problem. Check the wheel bearings. The wheel might twist and jam against the rail while being pulled closed. Can you...
  16. Martaine2005

    And now something weird

    Yeah, they spell colour wrong too :p..... Martin
  17. Martaine2005

    Repair stereo transformer ~ possible?

    Are there any references to voltages on the PCB?. Near the connector? There seems to be 3 or more outputs, any capacitor max voltages on each rail? Voltage regulators? Just a thought.. I see you didn't have any luck on the audio/hifi forums. Martin
  18. Martaine2005

    Power Adapter Variance

    It will probably drop to 12V once a load is present. Can you measure it while connected? Martin
  19. Martaine2005

    Horrible TV Audio and Video Lately

    I have noticed the same. Especially when in conference video calls. Most people here in the UK are using ZOOM now. Skype has pretty much vanished. It is just an artifact of the individuals internet stream and depends where they are streaming from. The audio is probably their laptop internal mic...
  20. Martaine2005

    Cleaning a DBX Eq?

    You need to get the contact cleaner inside by whatever means possible. Potentiometers differ in that some have openings and some are almost sealed. Spray where ever you can to penetrate, and rotate a few times. But do the sliders too as you have the cleaner out. Martin
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