7.6 Finally, take the knurled clamp and screw it down (flat side down) over the puck.
Tighten it enough that the periphery of the record is brought in contact with the
platter. You will notice that over tightening will sometimes result in the periphery
lifting off again. Do not over tighten.
7.7 After using the clamp system for a while, the proper amount of tightening will
become pretty much automatic.
7.8 The action of the clamp system is to provide uniform compression of the record
at the outer edge of the label area. First, the periphery of the record is forced
into contact with the platter. Then, the rest of the grooved area is pushed into
contact.
8. ADDITIONAL TIPS
8.1 Keep the platter scrupulously clean. Since no mat is used on the MK-3, any dirt
can easily be transferred to the record—especially since the clamp holds the
record down under pressure.
8.2 We recommend that the dust cover be off when playing records. Under most
circumstances this will result in cleaner sound since the cover acts as a “sail”
catching acoustic feedback.
8.3 However, when the turntable is not in use, having the dust cover on is strongly
recommended. Remember that it is very important that the platter be kept clean
so that dirt is not transferred to the record.
8.4 In choosing a location for your MK-3, bear in mind that wall mounting is generally
preferred. Placing the turntable on a shelf mounted on a sturdy wall is usually
the best way to isolate the turntable from footfalls and other shock and vibration.
Alternatively, one of the steel and lead turntable stands may be used if the floor
is firm and does not bounce when you walk. There are a number of stands on
the market and your dealer will be able to advise you concerning which ones
meet your particular requirements.
8.5 If the MK-3 must be placed on a piece of furniture or in an equipment cabinet
which is not perfectly stable, things can be improved by wedging something
reasonably hard between the furniture or cabinet and the wall against which it is
placed. Please be aware that doing so may mar the wall and /or the back of the
piece of furniture or cabinet. Under most circumstances, you will then be able to
walk around while a record is playing with out the arm hopping around.
8.6 Use of the VPI Power Line Conditioner is strongly recommended (Commercial
Message!). It is our experience that a couple of benefits are derived. First, the
PLC isolates the turntable’s motor from the incoming electric line providing ultra-
stable line voltage and frequency. This results in cleaner overall sound. The
second benefit is that the PLC allows fine pitch control. Varying the line
frequency control on its front panel varies the MK-3 motor’s speed.
9. POSSIBLE PROBLEMS
9.1 Hum—A low buzzing or humming sound heard whenever the amplifier or
receiver is switched to, “phono”, varies with the volume control setting, and is
heard when no record is being played. If hum is heard only when playing a
record, the hum is recorded on the record. This is actually a
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