Yamaha R1000 & R2000 amp Technical Bulletin No. 45H

Discussion in 'Yamaha' started by Hufsredo, Apr 26, 2017.

  1. Hufsredo

    Hufsredo Member

    Messages:
    59
    Location:
    Hanford CAli
    If you haven't done it, DO IT or have it done.


    See pic below, I also have the parts list for each amp repair kit.
     

    Attached Files:

     

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  2. sajjad amer

    sajjad amer Active Member

    Messages:
    252
    Location:
    Lincolnshire, United Kingdom
    Could you please help me by sharing the part list for R2000. Which Pins on voltage regulator I need to decouple?
    Thank you
     
  3. clinic-audio

    clinic-audio all on YAMAHA untill 1990

    Messages:
    1,948
    Location:
    France
    Hello

    the 45H bulletin is for R1000 only and do not concern R2000.
    The amplifier is using Power pack IC's in R1000 only and they need to be " decoupled "
    Not a very complicate mod !
    The R2000 is using discrete semi-conductors and need another mod kit with more components than R1000 : 16 fuse resistors , 5 transistors and 3 electrolytic capacitors
    Again , nothing very complicate
    I will strongly recommend to not use ordinary resistors instead original fuse resistors
     

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