Sony TCS-350 - Section 3: Adjustments; Mechanical Adjustment; Flywheel Thrust Play Adjustment

SECTION 3
ADJUSTMENTS
TCS-350
3-1. MECHANICAL ADJUSTMENT
PRECAUTION
Clean the following parts with a denatured- . Do not use a magnetized screwdriver for the
alcohol-moistened swab: adjustments.
record/playback head pinch roller . After the adjustments, apply suitable locking
erase head rubber belts compound to the parts adjusted.
capstan idlers The adjustments should be performed with the
Demagnetize the record/playback head with a rated power supply voltage unless .otherwise
head
demagnetizer.
(Do
not
bring
the
head
;
noted.
'
demagnetizer close to the erase head.)
Torque Measurement Flywheel Thrust Play Adjustment
Forward 2, asec
C0-1028 (0.32 — 0.67 oz-inch) dc ammeter
: 2-4 g-cm
6Vdc: =}.
Fast Forward 201 more than 70 g-cm
and CQ-201B (0.97 oz-inch) terminals of the
Rewind battery case
Tape
Tension
Measurement
.
Loosen
the
two
adjustment
screws.
_ | 2. Tum one of them clockwise carefully.
CQ-403 more than 130 g (4.58 02) 3. Stop turning it when the current suddenly increase
and loosen it % turn.
4. Adjust the other screw in the same way as step 2
and 3.
5. Secure the adjustment screws with locking com-
pound.
—