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  1. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Should be simpler than triodes or pentodes. Section 4.1 on page 27. I'm just following the manual but it seems straightforward. All I can add is to exactly follow the steps outlined there.
  2. Tha fios agaibh

    Denon AVR-1912 E2/EA

    You first have to enter diagnostic mode before following that section. It seems you'd better off seeing if you can first discern what works on this thing before tracing digital stuff. We haven't even diagnosed that the amp section is working. If you can't get an analog signal through this...
  3. Tha fios agaibh

    Low-Profile Temporary Metal Rivets

    They have a hand insertion tool for them but I prefer to use a cordless drill or drill press to put them in so even feed pressure can be applied and they go in plumb. If you do it by hand and they may go in crooked or strip out the hole. It sounds like you've used them before. Even so, its not...
  4. Tha fios agaibh

    Repairing Cummins Marine alarm board

    Perhaps, but trouble is identifying the chip. They are also a pain to unsolder unless you have a special tool or snip it out one pin at a time. If it's clearly marked on the top you might get lucky. Often manufactures don't id the component to force you to buy another @$500. If you have a...
  5. Tha fios agaibh

    What a battery charger looks like

    I agree. Might be nice to give that transistor some more room so it doesn't accidentally short across the anode of that diode, or better yet add a heat sink to it. You might alternatively insert the big diode so it mounts up/down solidly (seated all the way in the hole) instead of across the...
  6. Tha fios agaibh

    Denon AVR-1912 E2/EA

  7. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Michael. Take another look at the audio diagnostic section. Then read section 4.5 on page 28. You want to follow item 1 which will emulate fig 7 on page35. If you follow all the modes/procedures of item 1 IC801 should output pins 21 and 23 to be sent to amp section.
  8. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Ok, somewhat encouraging news. Have you tried FM stereo? I recall there was a mode (bypass, Direct or something similar) that IC801 bypasses IC30 and sends analog audio directly through to the amp. That may be a better place to start before perusing the digital realm.
  9. Tha fios agaibh

    Low-Profile Temporary Metal Rivets

    I was thinking about these threaded inserts. You insert them from the top. They sit flush or slightly below the serface. Outer threads screw into the wood when installed and inner portion is factory drilled/tapped to accept a screw. When installed with a drop of epoxy they are really strong.
  10. Tha fios agaibh

    Low-Profile Temporary Metal Rivets

    Have you considered metal threaded inserts? They are incredibly strong when applied with epoxy. You could opt for something like push in anchors like used in automotive, but are probably not strong enough.
  11. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Yes, I believe FL they speak of just means Fluorescent AVR display screen. I don't think they are making an ado about it, but "Cautions" could be changed to notes. The only "Caution" is user settings will be lost and it should default to factory settings. Notice it doesn't say "only"...
  12. Tha fios agaibh

    Denon AVR-1912 E2/EA

    I don't think it's a problem at all, you merely have to go through the set-up process like it was a new unit. This will ask you things like what inputs are associated with what feature. I do think your going to have to eventually hook this up to a tv to properly complete the set up. That is...
  13. Tha fios agaibh

    Hi,

    Hello and welcome Serra. Although I don't speak or understand Portuguese, I can say you are providing a great service to those who do.
  14. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Also make sure the remote in in the right mode. This usually means first pushing the remote button that controls the AVR, as opposed to TV or some other peripheral. If you diligently read the manual, you'll likely figure it out. I suggest trying a real analog source for your input like a CD...
  15. Tha fios agaibh

    Denon AVR-1912 E2/EA

    When its "Reset", I believe your presets are lost and need to be reprogrammed. So you probably need to walk through the set-up procedure. It looks like you should also run the diagnostic mode (10). This should help shine some light on where your loosing your signals.
  16. Tha fios agaibh

    Denon AVR-1912 E2/EA

    You said I interpret this to mean Audio VAUXL is arriving at CX4 pin 8 but you can not pick it up anywhere else, including the other end at CN2 pin 5. The open Gnd problem was why you didn't have IC power. You couldn't pinpoint exactly where continuity was lost so we jumpered across where you...
  17. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Perhaps FB54, or FB91 is out blocking VAUXL path?
  18. Tha fios agaibh

    Denon AVR-1912 E2/EA

    When you are satisfied that voltages/gnds are present where needed, I'd take another shot at doing a factory reset to re-initialize the microprocessor.
  19. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Yes, that's fine. I think the jumper is warranted since those two points are the same and connected on the print. The only thing is IC30 pin7 should reference pin 8 (Dgnd) Not pin 9 (SDTO). Our starting point is making sure the ICs are powered up. We can look at audio signals later.
  20. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Sorry about your endoscope. I hope you get it figured out soon, or at least have a plan "B" such as a powerful mirror. When you do get to sifting through all the plocketry, (a Michaelism?) you may have to just trust your own intuition. Prints and forum correspondings be damned. If you know...
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