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  1. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Great, now moving along one side (upstream or downstream) of CN13A see if you can pick it back up. If not readily accessible, move on to the other side. Now try an discern if we're getting it again left or right of CN13A
  2. Tha fios agaibh

    Denon AVR-1912 E2/EA

    I see. Anything below about 10Ω I'd consider continuity. And anything above that,we'll call open circuit. If you read anything KΩ or MΩ, that's certainly open circuit. Don't over think the exact fluctuating number. But Yes, We do need to find where we are losing this connection. We'll call...
  3. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Like I said, just go from chassis ground and document what isn't ringing through.
  4. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Can you state this in a simpler way. From Chassis Gnd to CP13A, I get X Ω From Chassis Gnd to CP11, I get XΩ
  5. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Yes, I believe so. But note that the chassis Gnd does exist on p.114 A-5, and A-7.
  6. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Ok. I had it in my head that CP meant a connection plug that's a flex jumper cable. I guess these "plugs" are the ridged front and side connection boards that interconnect the boards. Is that right? If hunting down that gnd connection really becomes that much trouble, I'd say screw-it, and...
  7. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Easy to ge lost in the Gnd labyrinth. I suspect cp11 because that's where DAgnd and Agnd converge. Heres the path I see: CP13A goes through SIDE_CNT boardCP13A to CN14 pin 4, which feeds through (p.114) to CN115 pins 5,8,11,14,16 which feeds through to CP11 (don't follow pins 5,7) pins...
  8. Tha fios agaibh

    Denon AVR-1912 E2/EA

    So "CP11" is one end of a ribbon cable? What was that other cable called, Flat cable? I forgot the acronym for it. Just saying if you found one bad cable, there could be others.
  9. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Not all but yes Agnd and DAgnd.
  10. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Did you check here on page 112?
  11. Tha fios agaibh

    Denon AVR-1912 E2/EA

    As long as they connect, disregard the names. Sometimes the IC pin says one thing and the plug connections say another. You could power down and turn on the audible beep on your dvm for checking continuity. It makes checking easier because you don't have to look at the meter.
  12. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Not really wrong ground, it's just not making it all the way to IC30 like it should. Remember, Agnd and DAgnd should be the same. Good luck.
  13. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Very good. I know how you feel, it can be frustrating at times but you just have to take it one step at a time. Here's what we know: What we're trying to do is power up IC30. We've established that we are getting DA+5v all the way to IC30 on pin 6,7. Presumably, that means the (DAgnd) ground...
  14. Tha fios agaibh

    Denon AVR-1912 E2/EA

    Almost, Now do the opposite. put your red positive dvm lead on CN13A for DA+5v (I forgot pin#) and then move your black neg lead from CN13A pin 4 or 5 (Agnd) over to points along Agnd and eventually DAgnd to find out where your losing the Gnd. If it magically reappeared, I'd try wiggling around...
  15. Tha fios agaibh

    Denon AVR-1912 E2/EA

    If you do have your DA+5v on CN13A.... Keep your Neg(black) dvm lead on pin 4 or 5 (Agnd) of CN13A and move your Pos (red) lead over to IC30 pin 6 or 7 to see if DA+5v is reaching all the way to its destination.
  16. Tha fios agaibh

    Denon AVR-1912 E2/EA

    First part good. Then you lost me, what the heck are you on cn101? Lol Our focus needs to br on DA+5v which starts at regulator IC105 on page110. You should have 5v on CN13A pin 10 (DA+5v) with respect to Agnd on pin 4,5 (Agnd) Yes?
  17. Tha fios agaibh

    Denon AVR-1912 E2/EA

    That is an odd size. Closest I could come is a 11/16-24 tap. Lets get this AVR going so you can be listening to your opera recordings in surround sound.
  18. Tha fios agaibh

    Denon AVR-1912 E2/EA

    No, it's referenced to DAgnd. Dgnd is not directly coupled to the source ground, so forget about it in the matter of powering IC30 for the moment. Put your positive dvm lead on IC30 pin 6 or 7. Then, with your black neg lead, probe Agnd or DAgnd to see where your losing your ground. If you have...
  19. Tha fios agaibh

    Denon AVR-1912 E2/EA

    So you do have DA+5v with respect to Agnd? You should have the same voltage wither using Agnd or DAgnd as a ref.
  20. Tha fios agaibh

    Hello..

    Hello and welcome.
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