Hitachi trk-8600 RM restoring and servicing to sell

Discussion in 'Tech talk' started by Cassette2go, Jul 25, 2024.

  1. Cassette2go

    Cassette2go Well-Known Member

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    I have a potential customer that's looking for a good working type deck and this is a good working radio but the tape deck is dead and these are pictures I took with my little camera first. 17219418849398731590193712616026.jpg
    Front
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    Input end
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    Back or rear
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    Battery compartment
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    After screw removal cracking it open
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    Got to know are those speaker wires go to plug in.
    17219423407272747232612796465404.jpg
    Just making sure where the wires go
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    Overview inside before removing cassette deck.


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    Back of tape deck cassette 17219425341431392146858104550215.jpg
    Making certain of what wires plugged into where and also note the amount of rubber tire wrapped around the motor or tar.
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    See how both pulleys are now very clean.
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    And now for the one picture I took with the phone
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    And now where I'm at kind of an overview
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    Finally, with a little help from boomboxery which this had stumped me. Here's a screenshot I found because I couldn't copy their picture or download it or whatever because. Screenshot_20240725-163106.png
    So now I'm going to get my own belts and start putting new belts into this model. I'll be back.
     
  2. Cassette2go

    Cassette2go Well-Known Member

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    Got belts?
    17219436477138659706296910339133.jpg
    Yes I got belts new ones old ones used ones flat ones square ones round ones idler tires. Yes these are just for boomboxes as the Walkman belts are with the walkmans and not out here.
     
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  3. Cassette2go

    Cassette2go Well-Known Member

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    This 10.4 in flat belt fits better than the other recommended sizes. Allow me to illustrate.
    17219463251671110466832329485031.jpg
    You don't want your flat belt on there so tight that it binds the motor while it's rotating. Ideally you would want the belt to just reach the center of the shaft of the motor and no more which is what I have here with a 10.4 in belt as I've already tried a 9.7 and a really tight 9.6 that's no good.
     
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  4. Cassette2go

    Cassette2go Well-Known Member

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    50 mm belt seems to work the best for the auto stop feature and also the first belt you replace in this model.

    17219483493805438316716060337041.jpg
    I thought I would show you how I measure belts. 1721948461108585407900762683748.jpg
    Okay, I'm installing this one.
     
  5. Cassette2go

    Cassette2go Well-Known Member

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    132 mm roughly for the motor driven belt that drives the take-up reels via the clutch, how I measured it.
    17219489908583645134427381008749.jpg
    Here it is installed without the flywheel in place. 17219491018952621313545222982676.jpg
    Well here it is running. I know you can't see it running, but maybe you'll get a blurred picture of the flywheel or something. Let's see.
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    Hopefully the electronics work cuz I know the speakers do and the radio but tomorrow I'll be getting into this very dirty. Dusty grimy front speaker said and me cleaning that and cleaning the speakers and all that. Let me illustrate with a picture.
    17219497183547416309097854364398.jpg
    There's a lot of dust in the speakers too.
     
  6. Cassette2go

    Cassette2go Well-Known Member

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    Woofers are very dusty 17220120976201269258649787670186.jpg
    Put water all through the front cover, now it's drying
    17220122538436038405119199650380.jpg
    Soon as this is dry I'll put the cleaned woofers back in.
     
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  7. Cassette2go

    Cassette2go Well-Known Member

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    This is how you adjust the speed by taking your driller screwdriver and putting it into the back of the motor in this model as I'm showing you here and I'm playing my test tape 17220186045832055881378671291031.jpg
    Yeah, it's probably too far away. You probably can't see that. Let me give you a close-up.
    17220186774056182043803582504970.jpg
    Jvc ha-s160-a are the headphones that I'm using to listen with everywhere. 1722018812877417601148964180362.jpg
    Now the next event is to put both pieces back together now that I've got the front of the speakers cleaned.
     
  8. Cassette2go

    Cassette2go Well-Known Member

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    Led Zeppelin physical graffiti
    17220228418051575867386831075223.jpg
    Outside on batteries
    17220231191294053642962243726263.jpg
    The antenna is very tall
     
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