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Thread: Sony TC-366 Reel to Reel tape deck problem

  1. #21
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    I've owned a TC-366 since 1970, bought it new for $110 when I was in high school. It's having trouble maintaining speed. In looking at the pix on Vintage Texas -age I noticed my running capacitor is different from what he shows.

    Here's a link to the back side of my tape deck.

    It's labeled as 1.5uF and .5uF both at 250 W.V AC and is good physical shape.

    I don't know replacing it will have any effect.

    I bought another TC-366 off eBay for parts. Mechanically it's in great shape. I'm thinking of swapping the motors out.

    Any thoughts on all this?

  2. #22
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    Well, the motor transplant went well and easy. I transplanted the motor and cap. Improvement, but turns out my "new" idler pulley is not spinning freely on its shaft. When I remove the circlip holding it on the shaft, it spins freely. In investigating this, I determined that the circlip doesn't grip the shaft. With no pulley on the shaft, I was able to slip the clip into the slot with no resistance and it slides right off.

    Is my circlip sprung? If so, can anyone advise on where a new one can be found?

    Thanks in advance.

  3. #23
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    I guess it's to be expected that an old thread wouldn't get answered. That's OK, as it caused me to research and not give up :-)

    I cleaned up the post for the idler pulley and grabbed a circlip off my donor unit from a different pulley and viola! She plays at right speed, high quality music, delightful to my ears.
    Last edited by Manfred; 07-16-2010 at 16:53.

  4. #24
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    Quote Originally Posted by Vintage Texas View Post
    Louis the headstack assembly plate need to come off first.
    Then clean all the small pivots and cam controlling the play-lever
    located on the right side.
    There is also a adjustment screw of the bottom right side of the assembly plate.
    Link with pictures and info here about 366:
    http://www.angelfire.com/electronic2...getx/SONY.html

    Hello Vintage Texas,

    I am having the same problem....

    I turned the adjustment screw as tight as it would go.
    Now it stays in the fast forward position, but it still doesnt stay in the play position or the rewind position.

    Any ideas as to what I should try next?

    Also after I release the knob and it forces itself to the stop position there is a ringing sound from inside. It sounds like a washer that is spinning around a screw.
    Could these be related?

    Thanks!!!

    Also After the knob

  5. #25
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    Exclamation Question about fuses

    I hope this hasn't been asked already.

    My Tc-377 works great, but I'm missing the fuse that goes in between the level meters, so the white lights, or the red (Rec) lights do not come one.

    Does anyone know what fuse this takes? I tried a 0.8a 240v but that didn't work.

    Thanks for the help guys

  6. #26
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    I just perused the service manual for the TC-377...a bit baffled here as the only fuses listed in the schematics are related to the PSU...not sure what fuse between the meters you mean as I'm not familiar with the TC-377...can you post a picture?

    Here are all the fuses in the TC-377 and their values.

    Voltage doesn't matter...amperage does.
    Attached Thumbnails Attached Thumbnails untitled1-jpg  

  7. #27
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    It's not a fuse Sweetbeats, VU meter bulb similar to Teac's.

  8. #28
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    Rolf...I "went there" in my mind, but didn't want to insult...plus I got thrown when the OP said "red (REC) lights" and I started wondering "hm..."

    Fuses DO work as lamps if you apply the right current to them right? But they have TERRIBLE service life...

    How ya been, Rolf?

  9. #29
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    hello
    i have a problem with my TC-366 : it does not change speed when i switch from 3 3/4 to 7 1/2; and i cannot put it on 1 7/8 speed
    what can be the cause ?

  10. #30
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    and if possible, can somebody explain how the different speeds are obtained?
    mechanically, or electronic?

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