Thanks, Halcro and Banquo. To answer Halcro, the symptom is as follows and as I described it before, except now that it is constant, I can make more complete observations: The tt starts up fine. The tach will show it ramp up to the 33.33 display, but within usually less than a minute at speed, the tach will start to display errors, e.g., 33.34, 33.32. Very shortly thereafter (within several seconds), the power goes away and at the same time I now see that the motor assembly "shudders", vibrates enough to shake the chassis, just before power goes away and tach display will go blank, except for the decimal point. The brake does not activate; the platter coasts to a stop, as if one pulled the plug, but the Power light is on and the decimal point remains lit. I suspect that the shutdown is a safety mechanism that saves the motor from damage.
Vintage DD turntables. Are we living dangerously?
I have just acquired a 32 year old JVC/Victor TT-101 DD turntable after having its lesser brother, the TT-81 for the last year.
TT-101
This is one of the great DD designs made at a time when the giant Japanese electronics companies like Technics, Denon, JVC/Victor and Pioneer could pour millions of dollars into 'flagship' models to 'enhance' their lower range models which often sold in the millions.
Because of their complexity however.......if they malfunction.....parts are 'unobtanium'....and they often cannot be repaired.
TT-101
This is one of the great DD designs made at a time when the giant Japanese electronics companies like Technics, Denon, JVC/Victor and Pioneer could pour millions of dollars into 'flagship' models to 'enhance' their lower range models which often sold in the millions.
Because of their complexity however.......if they malfunction.....parts are 'unobtanium'....and they often cannot be repaired.
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Sadly.....I think I have to admit that Tommy of TopClass is correct in his assessment which inspired this Thread. But perhaps mainly in relation to the Victor TT-101...😱 My TT-101 has been with my Tech for over two months because it suddenly developed speed issues (on both 33.33rpm and 45rpm). He has replaced five chips without any success and as all the electrolytic capacitors have previously been replaced as well as all the soldering...he has nowhere else to go. He has already spent too many days (and money) trying to wade through the complexity of this particular turntable. Compare that to the comparative simplicity of the TT-81 which does exactly the same job (albeit without the coreless motor) and I mourn the opportunity Victor spurned by not adding the TT101 motor to the TT81 electronics...😩 I found a TT-101 for Thuchan who has had his Tech in Germany trying to get it working for nearly five months..... Thankfully the TT-81 sounds just as impressive and I have heard that the TT-71 also performs well. I have lived with the TT-101 for 3-4 years and have loved it....but it is no longer in my future. I lived dangerously during that period and unfortunately those who still own 'fully functional' TT-101s must hear the clock ticking.....💀 |
Halcro and Lewm Bad news re the Victor 101. Halcro and I have the same tech. He did mention when I had a problem with my P10 last year that the Victor 101 was incredibility complex. The Pioneer otoh was straight forward and quite simple it is circuit. Fingers crossed my P3 continues to give me great service. |
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