Advertisement



  1. Things you need to know about the new ‘Conversations’ PM system:

    a) DO NOT REPLY TO THE NOTIFICATION EMAIL! I get them, not the intended recipient. I get a lot of them and I do not want them! It is just a notification, log into the site and reply from there.

    b) To delete old conversations use the ‘Leave conversation’ option. This is just delete by another name.
    Dismiss Notice

JVC AX-Z1010TN - Review (part II)

Discussion in 'classic' started by Dan K, Sep 7, 2015.

Page 46 of 47
  1. flatpopely

    flatpopely Prog Rock/Moderator

    The service manual denotes them as 2SK170V.
     
    flatpopely, Jan 16, 2023
    #901
  2. Sonci

    Sonci pfm Member

    Has anyone recapped their JVC? It's at least 30 years old now.
    I had a hum on a slightly older JVC 1100, and just replaced some Towa capacitors in the audio path, now is dead silent. Most of the capacitors are Elna and replacing all of them is a lot of work, but I'm thinking about..
     
    Sonci, Jan 16, 2023
    #902
  3. Dan K

    Dan K pfm Member

    Is the driver stage to the power amp 2SK246? (another J-FET)

    Quite difficult to read the manual TBH
     
    Dan K, Jan 16, 2023
    #903
  4. Sonci

    Sonci pfm Member

    Yes, F.E.T. without the name of the brand, at least on mine.
     
    Sonci, Jan 16, 2023
    #904
  5. Dan K

    Dan K pfm Member

    The 'J' is the important bit, not just any old MOSFET, or otherwise
     
    Dan K, Jan 16, 2023
    #905
  6. flatpopely

    flatpopely Prog Rock/Moderator

    It says Matsushita in the service manual.
     
    flatpopely, Jan 16, 2023
    #906
  7. MartinC

    MartinC pfm Member

    Mine was NOS 5 or so years ago, so no recap yet. Not looking forward to having to recap, disassembly looks daunting. It does look like the boards are single sided though.
     
    MartinC, Jan 17, 2023
    #907
  8. FLORIAN35

    FLORIAN35 Well-Known Member

    I had aswell Jvc 1100 and was in perfect condition when was inspected by my technician.
     
    FLORIAN35, Jan 22, 2023
    #908
    Plink likes this.
  9. Waxxy

    Waxxy pfm Member

    Mine was NOS about 4 years ago. Is there any consensus regarding the lifespan of capacitors in a situation such as this? Does the clock start ticking the day of manufacture, or when the amp is first powered up?
     
    Waxxy, Jan 27, 2023
    #909
  10. Gerard124

    Gerard124 Tempus fugit, memento mori

    Does anyone know the input capacitance of the Moving Magnet input on the AX-Z1010TN?

    The manual states its a 47K Load, but I can't see any mention of the capacitance.

    I'm using a Audio Technica AT-VM95ML, so I expect the capacitance needs to be on the low side for this particular cartridge?
     
    Gerard124, Feb 4, 2023
    #910
  11. Gerard124

    Gerard124 Tempus fugit, memento mori

    Can anyone please help with the specs of the MM phono stage?
     
    Gerard124, Feb 8, 2023
    #911
  12. flatpopely

    flatpopely Prog Rock/Moderator

    Let me take a look at the service manual and get back to you.
     
    flatpopely, Feb 9, 2023
    #912
    Gerard124 likes this.
  13. Gerard124

    Gerard124 Tempus fugit, memento mori

    Many thanks
     
    Gerard124, Feb 9, 2023
    #913
  14. flatpopely

    flatpopely Prog Rock/Moderator

    Service manual shows R47K (R301 & R302) in parallel with C100PF (C301 & C302) when switched to MM. MC is R470 with C1000PF.
    In addition phono sockets positives are connected to ground via a C330PF.

    Hope this helps.
     
    flatpopely, Feb 9, 2023
    #914
    Waxxy likes this.
  15. Gerard124

    Gerard124 Tempus fugit, memento mori

    Thank you so much!

    Just to clarify (I'm new cartridge matching), can I please confirm that's

    Moving Magnet Impedance = 47kΩ Capacitance = 100pF

    Moving Coil Impedance = 470Ω Capacitance = 1000pF
     
    Gerard124, Feb 9, 2023
    #915
  16. flatpopely

    flatpopely Prog Rock/Moderator

    That's what the service manual states. I don't know about the MM stage as I did not really look at it but I changed the 470R for 560R in the MC stage to match my Linn ASAKA (nice improvement in treble and soundstage) and the values were as per the manual.
     
    flatpopely, Feb 9, 2023
    #916
  17. Gerard124

    Gerard124 Tempus fugit, memento mori

    Many thanks I appreciate your help :)
     
    Gerard124, Feb 9, 2023
    #917
  18. Rodrat

    Rodrat pfm Member

    I am considering buying one, are there any unobtainium bits I should worry about?
     
    Rodrat, Feb 10, 2023
    #918
  19. Sonci

    Sonci pfm Member

    I'm curious, does it get any hot? All Jvc amplifiers I have get quiet hot,
    not class A level, but not cool as an AB amplifier.
     
    Sonci, Feb 11, 2023
    #919
  20. flatpopely

    flatpopely Prog Rock/Moderator

    It does get hot, especially if you select 'DA Convertor Direct'.
     
    flatpopely, Feb 11, 2023
    #920
Page 46 of 47

Share This Page





Advertisement


  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice