+ Reply to Thread
Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: Croft micro playing up

  1. #1
    Join Date: Mar 2016

    Location: Brighton, UK.

    Posts: 1,288
    I'm Mike.

    Default Croft micro playing up

    Just plugged the Croft micro back in after using a JVC ax z 1010 for a few months, and its not working, sound is distorted, using it with a 909, replaced the croft pre with a cheapy passive and that works, so fault is defo in the Croft.
    Current system. NAS Interspace, Jelco 750, /Nagaoka MP 200/Graham Slee Era V. CDP - Mission PCM 7000. Amps - Quad 909/Croft micro 25. Chario Syntar 100 Tower. QED XT40 speaker cable/Straight wire interconnects.

  2. #2
    Join Date: Apr 2009

    Location: Near Saffron Walden, Essex

    Posts: 6,671
    I'm Dave.

    Default

    Check the fuse, if not it's a valve.

  3. #3
    Join Date: Jun 2015

    Location: London/Durham

    Posts: 3,644
    I'm Lawrence.

    Default

    Quote Originally Posted by hifi_dave View Post
    Check the fuse, if not it's a valve.
    Agree about the valve, not sure how a blown fuse would make it distort though?

  4. #4
    Join Date: Apr 2009

    Location: Near Saffron Walden, Essex

    Posts: 6,671
    I'm Dave.

    Default

    I believe there is one for + and one for -.

  5. #5
    Join Date: Mar 2016

    Location: Brighton, UK.

    Posts: 1,288
    I'm Mike.

    Default

    Quote Originally Posted by hifi_dave View Post
    I believe there is one for + and one for -.
    Thanks Dave, which fuse do I check? And how can I tell which valve is playing up?
    Current system. NAS Interspace, Jelco 750, /Nagaoka MP 200/Graham Slee Era V. CDP - Mission PCM 7000. Amps - Quad 909/Croft micro 25. Chario Syntar 100 Tower. QED XT40 speaker cable/Straight wire interconnects.

  6. #6
    Join Date: Feb 2012

    Location: Estonia

    Posts: 97
    I'm ahto.

    Default

    it's mostly been the fuses in my experience. a blown fuse means heavy distortion.

    they're at the back.

    QUOTE=Mikeandvan;1153389]Thanks Dave, which fuse do I check? And how can I tell which valve is playing up?[/QUOTE]
    Fletcher Omega .3 / Cartridge Man Conductor / Denon 103R / Leak Troughline III GTA / Vecteur D-2.2 / Wadia 121 / Katana, Isolator & RPi/ Croft Mega Micro II (2015) / Croft 7R monos / Harbeth SHL5 / RFC & AntiCable

    waiting in the wings: Croft SMA IV Octal (being upgraded & fitted with a separate PSU by GC); Revox A722 power amp on AV duty along with B&W DM5s & a Christie LCD projector with some more AntiCable. this could turn into a 2nd system.

  7. #7
    Join Date: Jun 2015

    Location: London/Durham

    Posts: 3,644
    I'm Lawrence.

    Default

    Quote Originally Posted by hifi_dave View Post
    I believe there is one for + and one for -.
    Oh right makes sense now, I assumed it was just on the mains power.

  8. #8
    Join Date: May 2012

    Location: Dagenham Essex

    Posts: 10,034
    I'm I'mteachingmarcotheartofpishanto.

    Default

    Depending on age send it off to Glen for a dose of looking at
    Music is vinyl it fills the gaps between silence !

    TAT Sale post Leader " Marcos Mentor "

    Also a pishanto specialist confirmed by Head Daftee

    Real name " Allen " or "Zoomer Nut”, “Numpty Napper”.

    ±± KEEP IT REEL

  9. #9
    Join Date: Mar 2016

    Location: Brighton, UK.

    Posts: 1,288
    I'm Mike.

    Default

    Tried again and was working, then nothing, was using a Graham slee phone stage through line 1, changed to line 2 all fine. So what's up with line 1?
    Current system. NAS Interspace, Jelco 750, /Nagaoka MP 200/Graham Slee Era V. CDP - Mission PCM 7000. Amps - Quad 909/Croft micro 25. Chario Syntar 100 Tower. QED XT40 speaker cable/Straight wire interconnects.

  10. #10
    Join Date: Jun 2015

    Location: London/Durham

    Posts: 3,644
    I'm Lawrence.

    Default

    Quote Originally Posted by Mikeandvan View Post
    Tried again and was working, then nothing, was using a Graham slee phone stage through line 1, changed to line 2 all fine. So what's up with line 1?
    Is one pair a phono level input? Send some pics of the inside, from my experience line level micros have a single valve and phono level ones have 3 valves. That excludes regulator valves in the earlier (or perhaps some higher end later) models.

+ Reply to Thread
Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •