Switching "click" of VPI HW-19 TT - diyAudio
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Old 21st February 2012, 12:35 AM   #1
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Default Switching "click" of VPI HW-19 TT

I am using a VPI HW-19 MKIV TT, everytime when I switch on/off the TT, a loud "Click" sound come out from the speaker. I checked the wiring and there already has a very small 0.001K 630V capacitor in parallel with the on/off switch. I tried to increase it to 0.22u but the motor started running even with the switch off. Can anyone suggest a solution for this? Thanks
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Old 23rd February 2012, 11:29 AM   #2
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Any motor expert here can help me?
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Old 23rd February 2012, 12:17 PM   #3
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I m no expert by any means but it sounds more like a ground problem.
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Old 23rd February 2012, 01:56 PM   #4
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Try with a "snubber", a resistor about 100 / 1000ohms in series with a poliester cap about .047 /.22 in parallel with the motor winding, and test the audio cable shield, perhaps it is broken and doesn´t do its job.

Good Luck !!!
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Old 24th February 2012, 12:39 AM   #5
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Thanks dimkasta and Banfield. Will try the "snubber"
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Old 24th February 2012, 11:20 AM   #6
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Also, you can try a MOV (Metal Oxide Varistor) in parallel whit motor winding, of a voltage slightly more than the line voltage, b/e, a MOV of 240V for a motor of 220V. But take in mind, that the MOV some time fails short circuit without reason, then put a fuse between line and MOV/motor. Look at a datasheet for your best choice accordingly supply/motor voltage.
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Old 24th February 2012, 12:45 PM   #7
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Thanks Banfield, with try one by one to see the result.
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