Marantz SA-14, Service Manual

Page: 28 / 45

2-4
Adjusting the tension of the timing belt
Remove the gear unit and connect the ammeter to the DC
power as shown in Fig. 2-3.
If measurement of the loading motor current is possible,
move the motor in the direction of the arrow so as to obtain
40 - 50 mA, and fix the motor with screws (A1) x 2 pcs.
(See Fig. 2-4.)
Figure 2-4
Figure 2-3
DC Power
3.5V
M
1 2
Loading
Motor
Gear
Unit
Connector
Ampere
Meter
(A1) x1
ø
1.7x2mm
(A1) x1
ø
1.7x2mm
Timing Belt
Shaft
Motor
Pully Ass'y
Drive
Pulley