Sony TC-FX4 - Mechanical Adjustments

TC-FX4
! SECTION 3
ADJUSTMENTS
3-1. MECHANICAL ADJUSTMENTS Torque Measurement and Back Tension
Torque Adjustment
PRECAUTION
Torque meter Meter reading
I. Clean the following parts with a denatured- 35-55 g-cm
Forward CQ-102C :
alcohol-moistened swab: (0.48—0.76 oz-inch)
Fast forward, 110—165 g-cm
record/playback head pinch roller Saccind " CQ201A (3.80—5.82 nonin
erase head rubber belts
; 2.5—4.5 g-om
capstan idlers Back tension CQ-102C (0.04-0.06 ozinch)
2. Demagnetize the record/playback head with a
head demagnetizer. If the specified back-tension torque is not ob-
3. Do not use a magnetized screwdriver for the tained, change the hooking position.
adjustments.
4.
After
the
adjustments,
apply
suitable
locking
,
Tacit
compound to the parts adjusted. URC oo tea
5. The adjustments should be performed with the
rated power supply voltage unless otherwise
noted.
back-tension ievel
weaker ~—————-»-_ stronger
Change the hooking position.
(1 gcm per one slide.)
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