Recent content by Yahn

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    Hitachi SD-3120; Any information out there?

    Yes that was definitely the cause, when removing the plate that was stuck from the dried up old grease it acted like a glue that probably made the plate a little misshapen. I tried my best to shape the rim and got it to go from 33.3-33.7 rpm and now it isn't dipping below 33.3 but instead it's...
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    Hitachi SD-3120; Any information out there?

    So after cleaning the turntable levers and re-greasing everything I found that it has a prominent hiccup when rotating. Attached is a graph showing the repetative dips in speed. any tips for solving this?
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    Hitachi SD-3120; Any information out there?

    @swechsler that video helped a ton. all of the levers are not sticking anymore and the old grease was really caked on there. I removed it all and put some lube in it. That video was a lifesaver. Thanks!
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    Hitachi SD-3120; Any information out there?

    Which part should be cleaned from here for maintenance or recommendations? I am assuming just the bearings since after a few plays the speed is accurate. Any other tips?
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    Hitachi SD-3120; Any information out there?

    I got quoted over 130 for an acrylic cover. Is this too much and better to get a generic one?
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    Hitachi SD-3120; Any information out there?

    Initially the function switcher was not working. This was a simple fix as a part inside was disconnected. All but one light in the tuner display is burnt out. These are soldered in place so removing them would be something I have never done before. Probably will be easy once I try and will...
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    Hitachi SD-3120; Any information out there?

    Found a youtube video showing the functions in detail and en ebay listing where the seller refurbished and sold it. https://www.ebay.com/itm/115326182428?nma=true&si=c5LZ3rlu21nzsAczcMSJ2Wj2D4I%253D&orig_cvip=true&nordt=true&rt=nc&_trksid=p2047675.l2557
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    Hitachi SD-3120; Any information out there?

    Hello everyone, I have recently come across a Hitachi SD-3210 turntable/receiver combination and can't find any information out there except a basic service manual that lists parts and electrical diagrams. I have taken it apart and connected some loose things. A few light bulbs are burnt out...
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    Goodwill/SA/Thrift Store Discussions & Finds

    Marantz 6300 turn table - Mint - $125 (came with 2 headshells and a good cart, even had the plastic wrap on the record mat) Marantz 2200B with a bad transistor and diode - $100
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    Marantz 2220B bad J812 and J808 Voltage

    Yes the receiver works now. I appreciate all the help. The original issue when I got the receiver was that it made garbage sounds and stopped playing altogether after a couple minutes. I measured 0V at J808 and rBuckner helped me then. I replaced what could have been bad i.e. H807, H805, H806...
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    Marantz 2220B bad J812 and J808 Voltage

    :beerchug:
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    Marantz 2220B bad J812 and J808 Voltage

    The KSC945 I purchased and installed did not have the “C” suffix and doesn’t have a C middle pin. Could I just switch the Pins on my board?
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    Marantz 2220B bad J812 and J808 Voltage

    R808 measures up to 3.9k ohm.
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    Marantz 2220B bad J812 and J808 Voltage

    H806 is installed correctly.
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    Marantz 2220B bad J812 and J808 Voltage

    I replaced H806 with a KSC945YTA Link here: https://www.mouser.com/ProductDetail/512-KSC945YTA?r=512-KSC945YTA The voltages across R806 is: 15 -14.8 = 0.2 V R807 is 14.6 / 0 = 14.6 V
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