7
platter. You will notice that over tightening will sometimes result in the periphery
lifting off again. Do not over tighten.
After using the clamp system for a while, the proper amount of tightening will
become pretty much automatic.
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
Keep the platter scrupulously clean. Since no mat is used on the MK-4, any dirt can
easily be transferred to the record
—especially since the clamp holds the record
down under pressure.
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.
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.
In choosing a location for your MK-4, 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.
If the MK-4 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.
9.
POSSIBLE PROBLEMS
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 cartridge/arm/turntable problem. Usually
all that is needed to eliminate the hum is to run a ground wire from the turntable
chassis to the chassis of the amplifier or receiver. Simply attach a suitable length of
thin, flexible wire (test probe wire is ideal) to any convenient screw on the underside
Summary of Contents for HW-19 MK-4
Page 1: ...1 HW 19 MK 4 SETUP MANUAL ...
