Marantz TT-6000 - Cartridge Wire Color Code; Stylus Overhang Adjustment; Stylus Tracking Force Adjustment; Tone Arm Travel Adjustment

ALIGNMENT ADJUSTMENTS
This service manua! was prepared for qualified tech-
nicians familiar with turntable maintenance and align-
ment procedure. Review complete adjustment sec-
tions before proceeding.
CARTRIDGE WIRE COLOR CODE
Before installing a cartridge to the headshell, the
wires should be connected to the cartridge. The cart-
ridge or its technical sheet will identify the con-
nection pins. It may be necessary to slightly compress
the terminal clips on the headshell wires with your
fingers to firm the contact area to the pins. Below is
the |headshell color description.
HEADSHELL WIRES:
Right Channel Hot.................-.4-- Red
Right Channel Ground.................. Green
Left Channel Hot. ............ 0.000 e wees White
Left Channel Ground.................... Blue
After wire connections are made, install the cartridge
mounting screws, provided with the cartridge, through
the mounting slots and tighten firmly enough to hold
the cartridge in place. Final adjustments are made
after the overhang dimensions is adjusted.
A. STYLUS OVERHANG ADJUSTMENT
A
45RPM
adaptor
is
supplied
with
the
TT-6000
turn-
table
that
will
be
used
for
adjusting
the
overhang
dimension,
An
arrow
is
marked
on
the
45RPM
adap-
tor,
and
a
gradient
scale
from
11
through
18.
1. Place the adaptor on the spindle with the
arrow pointing towards the rear of the turn-
table. The gradient scale will be in the lower
left quadrant when viewed from the front.
2. Remove stylus protective cover and balance
the tone arm. Place the tone arm to the
gradient scale and set stylus contact to gradi-
ent 17mm on the 45RPM adaptor. Set the
cartridge screws after checking that the cart-
ridge
is
parallel
to
the
sides
of
the
headshell.
B. STYLUS TRACKING FORCE ADJUSTMENT
1. Remove the stylus protective cover and adjust
the counterweight until the tone arm is cap-
able of being suspended in midair without
movement.
2. Set the counterweight dial to zero.
3. Rotate the counterweight towards the pivot
point to the manufacturer’s specified cart-
ridge tracking force.
4. Adjust the anti-skate control to the same
amount of force as the stylus tracking force.
TONE ARM TRAVEL ADJUSTMENT
Changing the angle of the feed arm assemble deter-
mines the speed of the tone arm travel.
NOTE:
Care
must
be
excercised
to
maintain
clearance
between the feed arm assembly and the friction
rubber. Refer to Figure 1.
FEED ARM
CLEARANCE
FRICTION RUBBER
FIGURE 1
Moving the Feed Arm Assembly clockwise, when
viewed from bottom of the turntable, slows the tone
arm return and counter-clockwise will speed the
return travel. Loosen the hexagon set screw on the
feed arm assy (Refer to Figure 2) and turn feed arm
assy in increments of a few degrees either clock-wise
(slow), counter-clockwise (fast) until desired travel
speed is set. Re-tighten set screw after checking clear-
ance between the feed arm assy and the friction
rubber (2mm).
LEAD - IN
ADJUSTMENT
yw ECCENTRIC
PIN
RETURN
ADJUSTMENT
ECCENTRIC PIN
SELECTOR
ASSEMBLY
FEED ARM
FIGURE 2
PHOTO CELL DETECTION CIRCUIT
Install the tone arm in its rest clip and turn the
turntable on. Select 33RPM MODE. Adjust voltages
below in the Photo Cell Detection circitit
VR1-D.C. Voltage between Pins 9 and 10-0.2VDC
VR2-D.C. Voltage between Pins 9 and 11-0.65VDC
After the tone arm travel and photo cell detection
circuit is adjusted then the eccentric pins on the feed
arm assy can be used for fine adjustment. The return
eccentric pin will adjust the tone-arm speed return
while the Lead-in eccentric pin will position the tone
arm during lead in to the disc. |
LEAD IN ADJUSTMENT
Adjust disc lead-in dimension by turning the lead-in
eccentric pin on the feed arm assembly.
Turn eccentric pin clockwise to adjust tone arm away
from the disc and turn counter clockwise to move
the tone arm toward the disc.
ELEVATION PLATE ADJUSTMENT
Cueing elevation of the tone arm is adjusted by the
cueing nut located in the cueing lift shaft on the top
of the turntable. Turning the cue nut clockwise
(viewed from the top of the turntable) lowers the
cueing elevation height and counter-clockwise incre-
ases the elevation height of the cueing arm.