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RP-107H/117H
RP-107H/117H
©
CIRCUIT
DESCRIPTION
Key control section
Play/ cut, cue, cartridge forward/reverse,
forward APSS/reverse APSS, both sides
play, side A/B selection,
APMS(1) ~(?,
APMS
clear,
turntable
chassis
loading.
Synchro contro section
Synchro-recording:
Low
level signal
at
pin ) of microcomputer
Synchro-spacing:
Low level signal at pin
© of microcomputer
| Microcomputer |
Muting section
Muting: Low level signal at pin (23) of
microcomputer
(OUTLINE
OF
PLAYER
CONTROL
SECTION)
KEY
CONTROL
SECTION
This section
is made up of 17 keys, and each key is of the
lock-out type and its chattering time is limited to 40 msec.
1. Play/Cut key
Enables
to begin
playing
a record
or stop
it while it is
playing
—
this is effective
when
the turntable
chassis is
closed.
When the turntable chassis is opened, pushing this key will
ACHOs220/240V
5O0/60Hr
Sensor section
Turntable chassis open/closing, tonearm
rest
position,
tracking,
APSS/record
size,
tonearm position.
Indicator section
Side A play, side B play both sides play,
repeat play, APMS(1) ~ (7) (number of
programs)
SIDE
8 APSS
SENSOR
SIDE
A APSS
SENSOR
PLAYER
SIGNAL,
OUTPUT
Phono motor control section
Forward rotation:
High level signal at
pin
of microcomputer
«
8
&
3
e
&
é
z
:
POWER
SUPPLY
g
6 si
8 s
8 rd
SIDE
A LED3I9
~ 328
SIDE
8 LEO329~338
Tonearm control saction
z
°
a
7
"
Cartridge
motor
forward/reverse
rota-
|
PR | | OR,
£
wa
cause the turntable chassis to be closed or to make the unit
Reverse rotation: High level at pin (21)
tion, side A tonearm solenoid 'driving,
8) PREY
| rT
[8
&
F
:
Ey
dite
stare
aut
ti
dinar release.it
eee
eee aatst vin)
side
B tonearm solenoid driving.
3) pec | | pec]
[3
3
:
8
ee
ready
to start
automatic recording o
ase
i t .
en ee
2) ac | | ee
8
é
BK,
2. Cue key
:
High speed: Low level signal at pin (20)
z
pr
pi
z
pia
=
;:
.
of microcomputer
A a
a
F
"3
:
Enables cue up and cue down motion of the tonearm while
Pe
| PRL]
OE
by
3
é¢
@
g
a record is being
played: it is not
possible when the unit is
3) ee | | Pt]
[Es
Be
5
7
3
§
:
2] PR]
| |
[Be
#
bo
lzg
7
=
L
in stop mode.
9. APMS key
me
Pt
Sie
is
3
a
a
He
3. Cartridge forward key
Enables to decide the number
of programs
which
will be
oy
$
ag
<3
43
:
:
Z
Fi
:
*
i
48
3s
738
Enables to move the cartridge toward the optional portion
performed through APMS function. The APMS operation is
1c204
@|
Ic204@)
APMS
INDICATOR
oe
a
2
=
a
oe
°
3
=]
&
©
z a
<
? CARTRIGE
SIGNAL
5V
SIDE
8
LED308~314}
TURNTABLE
COMPARTMENT
OPEN
DETECTOR: CLOSE
DETECTOR
sw204
LED3Oi~
307]
§
LAMP
DRIVER
Q209,9210
on
a record
(to later programs). The cartridge can move
until the key is released, and after once stopping there, it
moves
down
to the record
if the play/cut
key pushed.
Playing will! begin from there.
To skip the music in play and listen to the next program,
push the cartridge forward key during play. The cartridge
(stylus
tip) will
come
off the record
and move
to the
beginning of the next program and begin playing automatic-
ally from
there.
If you
continue
to push the cartridge
forward
key at the time, the forward APSS operates from
the location where your finger was removed and moves the
cartridge to the beginning of the track you want to listen to
and start playing automatically from there.
Also
when
the cartridge
forward
key
is pushed
during
APMS
operation,
the cartridge
moves up the record and
skips forwardly to the beginning of the next program and
cancelled by pushing the key again.
10. APMS clear key
Enables to clear the conditions preset for APMS operation.
11. Loading key
Enables to open or close the turntable chassis: it is possible
even when the chassis is opening or closing.
SENSOR
SECTION
1. Turntable chassis open/close sensor
There
are
two
skeleton
switches to detect
whether
the
chassis is opened or closed in the following way:
With the chassis closed, the skeleton switch SW205 turns on
while the skeleton switch SW204 turns off.
With the chassis opened, the switch SW205 turns off while
the switch SW204 turns on.
2. Tonearm rest position sensor
starts playing from there.
Cartridge reverse key
Enables to move the cartridge toward the optional portion
3
on a record (to previous programs). The cartridge can move
until the key is released, and after once stopping there, it
moves
down
to the record
if the play/cut key is pushed.
Playing will begin from there.
The
reverse
APSS
operation
is the same
as the forward
APSS
operation
mentioned
above
—
with the only dif-
ference about the direction of locating the beginning of the
—
program you want to listen to.
Also when the cartridge reverse key is pushed during APMS
operation,
the
cartridge
moves
up the record
and skips
reversely
to the beginning
of the previous
program
and
starts playing from there.
Repeat play key
Enables to repeat play of side A or side B. The repeat play
The
photointerrupter
detects
that the tonearm
is at its
position (at right for side A, at left for side B).
. Tonearm position sensor
When the tonearm is out of its rest position, the gear drum
and photointerrupter operate together to produce pulses to
detect how far from
the rest position the tonearm
is situ-
ated.
|
IN
3)
out
[G2)
ICATOR
OUT)
SIDE
B Apss | aPss
H | KEY
L
H
IW]-L
] Ufo
{MICROCOMPUTER
}
Ic20)
33H
out
ase
| JL
woTorT
, |p
| SIDE
A
OUT
PHONO
MOTOR
out
Qs)
MUTING
«ouT]
L | H | KEY
33/45
SYNCRO
OUT| SPACE
PAUSE
Cio} close
out]
L
(7) OPEN
MOTOR
SPEED
SELECTOR
SW309
PLAY/CUT
Sw3ia
oa
.
?
0
ae
:
§
é
#
TRACKING
SENSOR
SENSITIVITY
ADJUSTMENT
a
2
2
P
53
:
fi i
$
5
§
10}
@3
3:
a
is cancelled by pushing the key again.
Zo
F
8 . fg V 2 V
#8
;
ee
Ms
:
z
6. Both sides play key
g
: : Be z
7
ag he
et
§®: ~Q3 Qs
=
Enables to play side A (or side B) followed by automatic
E
'
+2
PEE
a8
:
7
.
5
play of side B (or side A). The both sides play is cancelled
#
a
i
"Qe -Qi -Q
=
by pushing the key again.
2
oe
Fa
7. Side A/B selector key
-
:
.
Hise}
ge
Changes side A play and side B play. With the change, the
glo)
aoa)
#
i
3
tonearm
moves
to a lead-in
position,
which
results
in
98 3
Eg
i
a
3
#8
e
=
3
playing of the back side of a record which you are listing
Sox 2
=
a
6
E
¥
8
to.
;
:
i
:
:
8. Speed selector key
Enables to manually change the speed for a record.
Figure9
BLOCK
DIAGRAM
—9—
—10—
O le fe O
Poe R O e
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