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  1. Tha fios agaibh

    Where would I hook up 2 speakers to this amp?

    Probably right, but It seems odd that there's not two connectors for left and right. It's a mystery what was originally plugged into that jack, but I'd start probing here (see picture). I believe pin 14 and 15 land there.
  2. Tha fios agaibh

    Where would I hook up 2 speakers to this amp?

    looks like the rear speakers (left and right) are on the first 3 pins on that ribbon cable. From the photo of underside of board. You could experiment by probing with a small inexpensive speaker to see if you have audio on the first two pins, or better yet. Wait for Le Edd to answer. He is...
  3. Tha fios agaibh

    Where would I hook up 2 speakers to this amp?

    According to 73's de Edds diagram, it needs a 2200uf capacitor between each pin and the speaker. The other speaker wire would go to chassis ground or where pin 8 and 9 go. There must have been another board that originally went to that white connector?
  4. Tha fios agaibh

    Where would I hook up 2 speakers to this amp?

    looks like pin 1 and 2 end up on that white socket?
  5. Tha fios agaibh

    Getting into hot water

    I agree it's poorly designed, but I've seen overheating like this from a fuse clip being stretched out too. I always give them a little squeeze before fuse replacement so they fit snugly. More importantly, I always put a date on a replacement board so the service guy coming after me has a clue...
  6. Tha fios agaibh

    Led's headlight issue

    So, Have you tried or ruled out the resistor idea?
  7. Tha fios agaibh

    Circuit failure indicator

    Entry level Plcs cost less than $100.
  8. Tha fios agaibh

    90v/100a DC Power Supply

    I think you might want to explain what your driving with the motors because there might be a better ways to achieve your goals. It may make more sense to use gear reduction to meet your torque and Rpm requirements while mitigating the need for high amperage currents. Or, as Minder suggested...
  9. Tha fios agaibh

    Power rail names

    Thanks. I was wondering because It's possible to have the opposite polarity depending on transistor type. Another thing that seemed odd to me, is how a N type mosfet has its "source" connected to Negative and its drain hooked to a positive source. I will try not to overthink this stuff. Lol.
  10. Tha fios agaibh

    Power rail names

    Thanks Dave, makes sense.
  11. Tha fios agaibh

    Power rail names

    It seems odd to me some of the identifying terms used for power rails; like Vcc or Vdd. Yes, It makes sense when more than one collector or drain are similarly connected to the positive rail, but what about when you have a circuit with both mixed bjt and fets, or mixed N type and P type...
  12. Tha fios agaibh

    samsung tv not receiving hdmi signal

    I've the same problem with my Panasonic tv but made the decision that it's not worth repairing. There's no guarantee the hdmi input board is the problem either. I just use component inputs and still get a great HD picture on it. Only downside is, Dvd players no longer come with component outputs.
  13. Tha fios agaibh

    Circuit failure indicator

    The cost of PlCs are so inexpensive now a days that it's a no brainer. You could program a circuit that sends a fault if a relay output is energized and its auxiliary contact is not made. How about a fault if the auxiliary contact is made and output is not called for? Then program another rung...
  14. Tha fios agaibh

    Circuit failure indicator

    Brightness would depends on the load and resistor used with the neon but yes your right.
  15. Tha fios agaibh

    Circuit failure indicator

    Best is to just program fault logic on a plc that can turn on a light or alarm
  16. Tha fios agaibh

    Circuit failure indicator

    :rolleyes:You could use a reed switch where that red cap is. You'd have to alter it to suit. The magnetic field is quite strong on asco valves. (Or, as$hole valves as we used to call them).
  17. Tha fios agaibh

    16 Volt DC conversion to 12 Volt AC

    Ok, But the connection at the bottom of the cap drives one (H bridge) polarity and half the wave, while the 3 buffer output connections drive the opposite polarity and wave? That's what I meant by "high side and low side" Thanks for clearing this up for me. Btw, I believe my sketch should...
  18. Tha fios agaibh

    Car radio wiring

    looks like it broke off. It probably worked in the car without it because the chassis was grounded to car frame.(negative ground) I would try and reattach it if you can find the other end. oh, and insulate those connections with tape or shrinktube. Power supply sounds fine.
  19. Tha fios agaibh

    Circuit failure indicator

    You could use a neon light across a coil. The 120v solenoid or relay coil would work normally, but when the spool burns out, the neon (parallel to coil) would light. Similar to how an illuminated light switch works.
  20. Tha fios agaibh

    Capacitor?

    Think it's a Epcos logo
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