Marantz SD9000 - Page 37

. Tape Slack Prevention Circuit Adjustments
a. Set the mechanism operation button to STOP.
. Inserf a torque cassette, or short-circuit J519 and
J502. (By shorting circuit, the reels always rotate.)
. Adjust RM11 so that the torque becomes 35 to
50 g-cm.
. Remove the shorting wire after adjustment.
NOTE: This circuit functions only for a second or
two after switching the power on. There-
fore, the torque cassette procedure should
be repeated several times to adjust to the
specified torque.
13. Adjustment of Reel Base Speed in FF/REW
mode for Adjustment, Use a Digital Stroboscope
1. a. Set the tape in FF mode.
b. Adjust RM34 until the speed of the take-up
reel base reaches 1070 rpm.
2. a. Adjust so that the speed of the take-up reel
base is equal to the speed of the supply reel
base.
Example 1: Use a rubber band as shown below.
N.
a
.
1S
2: Engage the rubber band with the
reel bases as shown in the illu-
stration.
3: Before engaging the rubber band,
remove the mechanism case.
b. Set the tape in FF mode.
c. Adjust RM48 until the speed of the tape-up
reel base reaches 700 rpm.
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