Operation Of The Cam Gear; Operations; Fwd Mode - Sony CFD-K10 Service Manual

CFD.KlO
Operations of the modes are as follows:
2-1. Operation of the cam gear
Perspective viewed from cassette
Operations are performed as follows ;
1. Power is supplied to "solenoid plungeC''
2. "l*ver PL" moves in the direction of arrrow'
3. "Gear cam" is tumed by "spring (cam) torsion"'
4. "Gear cam" is aligned with "flywheel (N) gear" so that
"geâr
cam" is tumed.
(Approx. 0.5 seconds/l turn)
2-2. FWD mode
Power is supplied to "motor
tumed by "belt (caPstan)".
capstan" and "flYwheel" is
Pow€r is supplied to "solenoid plunger", "gear cam" is
tumed, a head is switched to NOR mode, and a head base is
moved forward.
PersDective viewed from cassette
geat cam
lever PL
guide of NOR
guide ol REV
stidet (NR2)
"Lever N" is turnd counterclockwise by "gear cam" and is
locked at "level PL".
Rotation (counterclockwise) of "lever N" is synchronized
with sliding of "slider (NR2)". Whe n "stide r (NR2)" is slid
rightward, mode of a head is switched from REV to NOR'
Simultaneously "lever PL" is pressed to a capstan'
(r)
(2)
lo
gear cam
solenoid
PIUnger
t
direction
of d ve
spring (cam)
totston
lever PL
fwheel (N) geal
_,/
ftywheel (N)
Wheel
(R)
STOP -
FWD
TIMING CHART
< INPUT
<
LED
CM
P L
R M - H
L I N E M U T E
c M " " " '
rL
R M " " " '
RM.H ..,'
motot caPstan ON/OFF signal
ptunger ON/oFF signal
reel motor ON/OFF signal
- F:FWD direction
- R:REV ditaction
reel motor drive voltage switching signal
- H : N O R
- L : H i g h