4
FINAL ASSEMBLY
Place the dustcover on the JR by slipping the hinge flanges into the sockets on the rear of
the base. Close the cover. Each of its front corners should rest on one of the small round
pads on the base’s front corners. If necessary, push gently on the front of the cover until
it does so. You may also have to pull up slightly on one of the rear corners. Once the
cover is squarely resting on the base, tighten the screws on the back of the base’s hinge
sockets with a No. 2 Phillips screwdriver.
Now that you have completed assembling your new JR, please take a few moments to fill
out and mail the warranty registration card. In the unlikely event that you need warranty
service, our having the card on file will make it easier for us to help. If you take the
additional step of sending a photocopy of your dealer’s sales receipt along with the card,
handling any warranty claim will be made even easier for both of us.
SPEED CHANGE
The JR offers speeds of 33 1/3 and 45 RPM. Moving the belt from one groove on the
motor pulley to another as follows changes speed: Turn off the motor, remove the Motor
Cover Plate, and with a clean finger, pull gently on the belt and move it to the other
groove. The smaller diameter groove is for 33 1/3 RPM and the larger for 45 RPM.
Replace the Motor Cover Plate and turn on the turntable. Make sure each post has a lock
washer atop it before putting the Cover Plate in place. Making the caps finger-tight is all
that is required.
USE OF THE RECORD CLAMP
The JR’s platter is made from materials that effectively damp vinyl disk resonance’s.
Using a mat on the turntable’s platter will be of no benefit and will, in fact, degrade
performance. To take full advantage of the platter’s damping effect, it is necessary to use
the supplied record clamp.
The record clamping system consists of three pieces: a rubber washer, a specially
machined plastic puck, and a knurled Delrin ™ screw-down clamp.
NOTE:
Clamping brittle polystyrene or shellac records is not recommended. If you
want to clamp these disks, do not use the rubber washer beneath them. In addition, clamp
them very lightly to avoid the possibility of cracking the record.
Place the rubber washer over the spindle and gently push it down so that it rests flat on
the center of the platter.
Place the record to be played on the turntable. Next, take the puck and holding it with the
flat side up, place it over the spindle on top of the record.
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.
After using the clamp system for a while, the proper amount of tightening will become
pretty much automatic.
