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Discussion in 'Yamaha' started by amr2, Mar 20, 2018.

  1. amr2

    amr2 Active Member

    Messages:
    478
    Thanks!!! :beerchug:
    About the input capacitor C101 (100/16) What do you think about using a Nichicon ES BP?
    Did you use a 3299P-1-102LF or 3296P-1-102LF for the bias pot?
     

     

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  2. bmanone

    bmanone Active Member

    Messages:
    117
    Location:
    Calico Rock, Arkansas
    I used this for C101:
    Nichicon Aluminum Poly:
    2 x 493-3711-ND RR71A101MDN1 CAP ALUM POLY 100UF 20% 10V T/H​
    It has low ESR and should be longer lasting. It sounds great to me.

    I used multiturns for the bias pots, but I had to bend the center pin to install. It was like the 3296P-1-102LF. I can look up the part numbers I used, if you want.
     
  3. amr2

    amr2 Active Member

    Messages:
    478
    ok, i will order both and compare ;)
    No it doesn't matter. If I'm not wrong it's the same reference that I used for the PC-2002M.

    Did you change the big filter caps? I have a pair of UCC E36D101LPN223TDB7M that fit perfectly.
     
  4. bmanone

    bmanone Active Member

    Messages:
    117
    Location:
    Calico Rock, Arkansas
    I didn't replace the filter caps. The capacitance checked OK, and the ESR was OK. I couldn't check leakage. Prior to installing the speaker protection (on one P2200 so far), both amps would continue to play for 20-30 seconds after being switched off. I took that as a good sign for the filter capacitors. If you install the filter caps, let me know if your hear an improvement.
     
  5. amr2

    amr2 Active Member

    Messages:
    478
    of course, I will keep you informed. Thank you!
     
  6. bmanone

    bmanone Active Member

    Messages:
    117
    Location:
    Calico Rock, Arkansas
    One of the P2200 has a really low hum at power on that goes away after a couple of minutes. The hum is in both channels, this could be caused from ripple in the filter capacitors at start up. Maybe they need to be replaced, I don't want to because they are so expensive. What do you think?
     

     

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  7. amr2

    amr2 Active Member

    Messages:
    478
    Could be a reason. Anyway the UCC are not very expensive, about 25$ each one.
     
  8. amr2

    amr2 Active Member

    Messages:
    478
    Barry, where did you put the EPCOS (TDK) Film caps?
     
  9. amr2

    amr2 Active Member

    Messages:
    478
  10. bmanone

    bmanone Active Member

    Messages:
    117
    Location:
    Calico Rock, Arkansas
    Sorry about being slow to respond, this is what I used for C113 in both amplifiers: 495-5047-1-ND
    B32529C0474J189 CAP FILM 0.47UF 5% 63VDC RADIAL
     
  11. amr2

    amr2 Active Member

    Messages:
    478

     

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  12. amr2

    amr2 Active Member

    Messages:
    478
    There is no MBRF10150CTR in Mouser, I'll look for another equivalent
     
    Last edited: May 20, 2018 at 11:18 AM
  13. bmanone

    bmanone Active Member

    Messages:
    117
    Location:
    Calico Rock, Arkansas
  14. amr2

    amr2 Active Member

    Messages:
    478
  15. amr2

    amr2 Active Member

    Messages:
    478
    I think this time I'm going to use Panasonic FM 470/50 (P12400-ND) instead FC series.
    BTW, have you tried FR or FS series? They are longer life and lower ESR than FM or FC series
     
  16. amr2

    amr2 Active Member

    Messages:
    478
    Your speaker protection module have a 30A relay, I like it more than mine.
     

     

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  17. bmanone

    bmanone Active Member

    Messages:
    117
    Location:
    Calico Rock, Arkansas
    I picked the P10352-ND for lead spacing, it's closer to the size of the one that was removed. I like my protection modules for the 30 amp relay, but I think they may have a larger foot print than yours. The protection modules I used draw between 130 and 160 mA AC when the relay closes.
     

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