CR-2020 meters not working/ bulbs out

Discussion in 'Yamaha' started by vinyl fiend, Oct 12, 2017.

  1. vinyl fiend

    vinyl fiend Active Member

    Messages:
    375
    Location:
    Newburgh, NY
    The SPL meters don't work accurately. When in the phono stage, if I jiggle the tuner knob they will twitch a little bit. Also, even if I go to %50 volume, the meters only show like 1 watt output. I'm not sure if it the meters or the power output itself. I just had the service bulletin upgrade done for the relay. also, the spl meter bulbs are out. I'm not sure if this affects other things in the chain. Thanks
     
  2. avionic

    avionic " Black Knights" Subscriber

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    Clean the SP Out / Signal Q meter switch. Then make sure its in the SP out position. Normal operation you have to crank up at least .5 watts to get the meters to start moving. Using efficient speakers .5 watts is pretty loud.
     
    Last edited: Oct 12, 2017
  3. avionic

    avionic " Black Knights" Subscriber

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    Touching the tuning knob automatically switches the right channel power meter to a Signal Q meter.
     
    Last edited: Oct 12, 2017
  4. avionic

    avionic " Black Knights" Subscriber

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    With the meter bulbs out about the only thing that may happen . Is a pop in the speakers at power down.
     
  5. avionic

    avionic " Black Knights" Subscriber

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    Power meters may need to be adjusted as well. Page 12 of the service manual.
     
  6. vinyl fiend

    vinyl fiend Active Member

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    375
    Location:
    Newburgh, NY
    Thank you for your help avionic. I noticed you changed your avatar. Can you tell me what is signal q? What is FM blend? what is OTS? Thanks again, I don't have the manual, but the unit is sounding very nice. Yamaha YP-D71 - Stanton 681 EEE - Hartley Concertmaster
     
  7. avionic

    avionic " Black Knights" Subscriber

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    halloweenie
     
  8. avionic

    avionic " Black Knights" Subscriber

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    Signal Quality-Signal strength.
     
  9. avionic

    avionic " Black Knights" Subscriber

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  10. avionic

    avionic " Black Knights" Subscriber

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    Optimum Tuning System.
     
  11. clinic-audio

    clinic-audio all on YAMAHA untill 1990

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    Hello Avionic

    Can you tell us what does "owner's manual" mean ?
     
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  12. vinyl fiend

    vinyl fiend Active Member

    Messages:
    375
    Location:
    Newburgh, NY
    Thats way too technical for me.
     
  13. vinyl fiend

    vinyl fiend Active Member

    Messages:
    375
    Location:
    Newburgh, NY
    It's too bad the 2020 doesn't have a mid-range control. Is the loudness knob supposed to attenuate the volume so drastically? I find I can cut the mids a little bit by attenuating the presence control. I say this, because my speakers are a bit mid-range heavy. The loudness control seems to be pretty useless.
     
  14. avionic

    avionic " Black Knights" Subscriber

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    We are men ! We don't need no stink'n manuals.:biggrin: ...... Well.. Maybe we do.:rolleyes:
     
    Last edited: Oct 13, 2017 at 9:09 AM
  15. vinyl fiend

    vinyl fiend Active Member

    Messages:
    375
    Location:
    Newburgh, NY
    Well, I've thoroughly read the manual from front to back. I did, admittedly skip the AM reception section. I understand how the loudness control works now. You set the receiver to a higher listening volume, say maybe a Friday afternoon level, and use the loudness control for quieter, more intimate times. kind of unique.
     
  16. vinyl fiend

    vinyl fiend Active Member

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    375
    Location:
    Newburgh, NY
    I'm on the hunt for a big Old antennae to put up in my attic for the tuner.
     
  17. Oilmaster

    Oilmaster Ozzy Subscriber

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    This should do it......

    stackum.jpg
     
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  18. llwhtt

    llwhtt Well-Known Member

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    995
    Location:
    SoCal
    He's gonna need a BIG attic for that one!
     
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  19. avionic

    avionic " Black Knights" Subscriber

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