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Perus

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Posts posted by Perus

  1. I recently added a JE480 as spare in case the drive dies in the JB980 🙂

     

    Also, couldn't resist in commenting the "much beefier power" in models prior to the 980, IMHO its mostly beefier in weight and not so much else... 😎 

     

    /Per

  2. Hi!

     

    Being a bit late to this I recently acquired the DR470 and was also a bit afraid of using it with 3-pole HPs but Sharp has planned for that and protects the output

    with the following resistors in-line with the R-  and L- signal.

    R774 and R773 makes it possible to create a sort of "virtual ground" when interconnected on 3-pole HPs like below;

    image.png.0c6ad246436ab54d16ec8a84e6c2fa60.pngimage.png.a96d539ae5a73e9fedf9b618c7b2f4c5.png

    Going to try a set of 4-pole HPs soon since that would make the Amp to work as designed - and the resistors shouldn't be needed there either in a 4-pole "only" world 😉

    Edit: Would love to see the internals of this adapter though: https://aiueokblog1.blogspot.com/2015/02/sharpad-d1acsharp.html

    Not easy to find one these days.

     

    /Per

  3. Many hours later I've changed my mind a bit, the RH1 wins and especially the way it handles bass - the rest (NH700, NH1, N10) are weaker in that regard IMHO.
    It probably helps that the in-line output capacitors are larger in the RH1 (470uF vs 220uF for NH1) and with low impedance HPs that's a plus!

     

    However, speaking of non-Sony MDs - just recently acquired a working Sharp MD-DR470 and the sound from that one is interesting and under evaluation ftm.

     

    /Per

  4. Hi!


    Since I received the N10 this summer I've tried to charge it with a BCA-NWHD3 (@6V) and can confirm it doesn't charge even if indicating so.

    The reason is most likely due to some control pins (cradle_det?) ends up connected to GND due to different pinout compared to the HD3/NH1 which it was made for.
    I plan to solve this with a separate MAX1811 IC connected within the BCA-NWHD3 adapter directly to the cell which is available for the N10!

     

    /Per

     

    Screenshot_20210727-115911_OneDrive.jpg

    Screenshot_20210727-120054_OneDrive.jpg

    Screenshot_20210730-085755_OneDrive.jpg

  5. Apologies for the resurrection of this rather old thread but I guess the need NH1 charging still remains these days.

    I'm looking for the name/PN of this special NH1 connector as I don't want to pay 80 USD for an aftermarket cable with that connector.
    The connector looks like one of those proprietary phone ports from the past...

    /Per

     

  6. Unfortunately I couldn't do the rebuild in a LIP-4WM case since the dedicated LIP-4WM I acquired was in perfect condition (to my surprise actually)
    Not that common these days to find a working original battery. I'm keeping it at 40-60% and hope it lasts forever :P

    /Per

     

     

  7. I’m using the JB980 for playback and analog recording while the JE470 mostly for digital recordings - a combo that works great for me. Both needed new loading belts and some cleaning but apart from that very reliable. 
    /Per

  8. I’ve also noted this “lack” of track dividers from certain CDPs and also BDPs.
    Also, Spotify connect and Tidal streaming with the fancy gapless technology often fails to divide the tracks on the target MD. Going to check if the Squeezebox plug-ins works better in that regard  

    It appears that older equipment fairs better in this regard, ie they simply interrupt the digital stream between the tracks and triggers a new track on the MD. 

    These are my finding fwiw :)

    /Per

  9. Ok now I’m officially embarrassed and should have known better than to blame Sony for making flawed equipment ;)

    The reason for the clipping in the analog signal chain was due to level limitations in my pc-based measuring solution - the same signal path has been used mostly for tape deck maintenance without any issues but didn’t handle the higher output levels of the minidisc decks very well :(

    noticed that while tracing the clipped signal with my oscilloscope later this evening. Sorry to waste anyone’s time and I really hope not to be remembered as the guy who posted some questionable topics as a fresh member ;)

    Thanks for your patience,

    Per
     

     

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