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CR1020 Restoration Guidance

Discussion in 'Yamaha' started by LFazio51, Nov 25, 2017.

  1. hertzdonut

    hertzdonut Press Play and Stand Back Subscriber

    Messages:
    812
    Location:
    Claremont, NH
    Ah, yes, I see that now. Looks like it jumped up a bit in price, too.

    Well, you can always save a few bucks on the holder. Put together one of my own...

    Hakko808-01.jpg
     
    Oilmaster, Mr. Yamaha and LFazio51 like this.

     

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  2. LFazio51

    LFazio51 AK Subscriber Subscriber

    Messages:
    222
    Location:
    Beaumont, Texas
    Very "fengshui!" :beatnik:
     
  3. Oilmaster

    Oilmaster Drillers go deeper

    Messages:
    1,239
    Location:
    Paris & The Hague
    It's artwork !
     
  4. hertzdonut

    hertzdonut Press Play and Stand Back Subscriber

    Messages:
    812
    Location:
    Claremont, NH
    It's both!

    wax-dessert.jpg
     
    LFazio51 likes this.
  5. thr33p4c

    thr33p4c Active Member

    Messages:
    244
    Location:
    New York, NY
    Really great work so far! I recently acquired a CR-1020 that had been worked on in the past. This thread has been an excellent guide and also a great repository for related material and links. I have completed a power supply rebuild of my unit and everything is working normally, however, I noticed that the previously "repaired" main filter cap board may have an incorrect value in place for the main filters. They are currently 15,000uF 63V. The schematic shows 18,000uF 71V? I am curious to know what the correct value should be in a CR-1020 and if the 63V rating is sufficient or if it is risky to run in this state.

    Also of note: I had 10 ohm fusible resistors too. I swapped them with the 33 ohm ohmite units recommended by oilmaster, rear mounted on board.Schematic shows 33 ohm. Wondering if the hifi engine version is incorrect or if Yamaha just downsized a few power supply components on certain models to cut costs.

    Sorry to hijack the thread...
     
  6. avionic

    avionic " Black Knights " Subscriber

    Messages:
    42,723
    Location:
    Fort Dodge, Iowa
    Typo in the schematic... The SM parts list matches whats installed. 15,000µf/63v...
     

     

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  7. avionic

    avionic " Black Knights " Subscriber

    Messages:
    42,723
    Location:
    Fort Dodge, Iowa
    The CR-2020 shares the same board . The 2020 has the 18,000µf/71v.
     
  8. LFazio51

    LFazio51 AK Subscriber Subscriber

    Messages:
    222
    Location:
    Beaumont, Texas
    I really can't say why they were 10ohm.
     
  9. thr33p4c

    thr33p4c Active Member

    Messages:
    244
    Location:
    New York, NY
    Thanks for the info guys! Now I just have to refinish the case...
     
  10. avionic

    avionic " Black Knights " Subscriber

    Messages:
    42,723
    Location:
    Fort Dodge, Iowa
    Because you are working on and CR-1020.
    Part of the CR-2020 service bulletin

    The 1020 and 2020 share the same PCB's for the E-cap and power supply board.But that doesn't mean they are populated with the same components.
     
  11. Oilmaster

    Oilmaster Drillers go deeper

    Messages:
    1,239
    Location:
    Paris & The Hague
    So, how are things going by now ?
     

     

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  12. avionic

    avionic " Black Knights " Subscriber

    Messages:
    42,723
    Location:
    Fort Dodge, Iowa
    SB's not required on the CR-1020.
     
  13. rode2rouen

    rode2rouen Member

    Messages:
    72
    Wow, this is an awesome thread..........as I have a CR-1020 showing up via USPS tomorrow, I really freaked out! :eek:

    Rex
     
  14. MannyE

    MannyE Exterminate! Subscriber

    Messages:
    5,075
    Location:
    Miami Beach
    Did you buy the CR-1020 on Eroticon-6?
     
  15. rode2rouen

    rode2rouen Member

    Messages:
    72
    I had to Google "Eroticon 6", and now I see you're casting aspersions on my avatar, DDDonna, who by the way is NOT a whore!
    DDDonna is my motorcycling muse, I ride a Triumph Tiger 1050, which is powered by a Triple-licious 3 cylinder engine.

    In other news, the Yamaha CR-1020 has arrived and it does need work.

    Rex
     

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