Mechanism Adjustment; Flywheel Loose Play Adjustment; Pinch Roller Pressure Measurement; Take-Up Torque At Various Modes - Akai CS-703D Service Manual

V. MECHANISM ADJUSTMENT
FLYWHEEL LOOSE PLAY
ADJUSTMENT SCREW
FIX_WITH_ SOLDERING IRON
AFTER ADJUSTMENT
% 0.05 to 0.2mm gy FB %
e m LY, ZB
CLL ty
i rms of EG | ||
ZL
FLYWHEEL
L HOLDER PLATE
CAPSTAN
Fig. 7 Flywheel Loose Play Adjustment
\
300 to 360 grm
SPRING GAUGE
CAPSTAN
PINCH ROLLER
PINCH ROLLER
SPRING
(a) Model CS-703D
1. FLYWHEEL LOOSE PLAY ADJUSTMENT
(Refer to Fig. 7)
Adjust by turning flywheel loose play adjustment
screw to obtain a 0.05 to 0.2 mm of loose play when
the flywheel is moved as indicated by the arrow
mark,
2. PINCH ROLLER PRESSURE
MEASUREMENT (Refer to Fig. 8)
At playback mode, push the pinch roller with a spring
gauge until the pinch roller separates from the
capstan by about 1 to 2 mm and then gently return.
SPRING GAUGE
300 to 360grm
CAPSTAN
PINCH ROLLER
PINCH ROLLER ARM
PINCH ROLLER SPRING
(b) Model GXC-704D
Fig.8 Pinch Roller Pressure Measurement
Take a reading of the spring gauge indication at the
moment the pinch roller touches the capstan and
begins to rotate.
Specified Pinch Roller Pressure: 300 to 360 grm
In case specified pressure cannot be attained, replace
the pinch roller spring.
3. TAKE-UP TORQUE AT VARIOUS MODES
Playback mode: 35 to 55 grm-cm
Fast Forward mode: 70to 120 grm-cm
Rewind mode: 70to120grm-cm