Adjustment Procedures; Mechanical Adjustments - Sony TC-640 Service Manual

5-1.
5-1-1.
SECTION 5
ADJUSTMENT PROCEDURES
MECHANICAL ADJUSTMENTS
171-117-083 (C402)
capacitor, metalized paper
171-117-083 (C403)
capacitor, metalized paper
1-541-033-21 (M403)
motor, reel (CM-71) -
1-117-040 (C401)
capacitor, metalized paper
1-441-680 (T401)
transformer, power (for USA)
1-441-694 (T4017)
transformer, power (for General Export)
1-541-033-21 (M402)
motor, reel (CM-71)
8-83 1-634-13 (M401)
motor, capstan (HC-634D5}
Adjusting parts locations
Automatic Shut-off Switch Adjustment
Remove the head deck by taking off the two
screws, and put it upside down on a soft cloth.
Make sure that the shut-off lever does not touch
the head deck when pushing it by the hand.
See Fig. 5-1-1.
If necessary, adjust the position of the actuator
bracket by loosening the screws A.
Place the head . deck
See Fig. 5-1-1.
in a normal position.
Push the shut-off lever slowly by the hand, and
check to see that the microswitch turns on when
the lever comes the one-third position of the
slot as shown in Fig. 5-1-2.
If necessary, adjust the position of the micro-
switch by loosening the screws (B) and (C).
Release the shut-off lever, and make sure that
the microswitch turns off when the actuator
comes at one-fourth position of the slot (See
Fig. 5-1-2).
9. If it is not, readjust the position of the actuator
bracket.
actuator bracket
shut-off lever
Fig. 5-1-1. Automatic shut-off Switch adjustment (1)
shut-off lever ri *]
one _ U
% ia
Fig. 5-1-2, Automatic shut-off switch adjustment (2)