Sony TC-377 Service Manual page 8

FF and REW Torque Adjustment
FF and REW modes
Adjust by changing the position of leaf spring to
obtain the specified values on torque meter. (Read
the values when driving idler is forced to stop the
motion.)
3 FF idler
leaf spring
driving idler
in REW mode in FF mode
1,000~1,400g-cm
(14~18 oz-cm)
{Reel Table Height Adjustment
FWD, REW & FF modes
1. Adjust the height of reel table by adding or
' removing the adjusting washers (@ ' ) so
'that tape does.not come in contact with reel
flange in FWD, REW & FF modes.
2. Perform tension regulator back-tension adjust-
ment on page 9 and FWD torque adjustment. ©
approx,
35mm (13/3")
ial = en
— rer
'lower adjusting washer.
1,000~1,400 g-cm
(14~18 oz-inch)
FWD Torque Adjustment
200~ 240 g.cm
(2.8~3.3 oz.inch)
torque meter
FF and Driving Idler Height Adjustment
STOP mode
supply —
reel table <F
© nylon washer
take-up
reel table
SONY-00124/DRUCK6
se ane (6.96~10.4 oe.inch)
torque .
Brake Adjustment
STOP mode
take-up brake
torque
(22.2 ~30.6 oz.inch}
2) take-up brake
adjustment in the
direction shown
take-up reel table \
supply by arrow C.
reel table } strong
(C>4—— lever
{ weak
WHat
Adjust the supply brake torque by
expanding or contracting the pitch
of the spring.
brake lever ip
1) Adjust by: eng the |
: i Trew. i
tension regulator arm ; aa own Win ( ve enna
MR ~%h").
(S) lever al
3) take-up brake torque adjustment in the
direction shown by arrow D.
e@ When the meter reading is more than
the specified value, bend the 'lever
in the direction shown by arrow.
© When the meter reading is less than the
specified value, cut off one turn of
the spring end and hook the 'spring. .
7.5~8mm (5/6")
in STOP mode
After having performed the tension
regulator adjustment on page 9, make
the supply brake torque adjustment.
Tape Slack Check
Place the machine in vertical position and thread
REW conditions.
|
peor end portion of REW — STOP
tape (Fig. A)
7" reel | beginning of
tape
FF beginning of Pull PAUSE lever in
| tape FWD mode at 19 cm/s
(7/2 ips),
STOP
FWD — STOP
at 4.8 cm/s (17/g ips)
(Fig. C)
beginning of ©
tape
7" reel
FWD (4.8cm/s)
STOP