SX-4-L
cDrJroNEEr{
Shot/,n tn thb
photo
b Model
SX-7.
ORDER
NO.
ARP-047-O
COMPUTER
CONTROLLED
STEREO
RECEIVER
sx-7
sx-6
SX-s.SiX-EiL
SX-,QISX-4L
.
The AM tuner of
SX-4L
wave-band tuner with MW
LW
(long
wave).
and
SX-SL is a two
(medium
wave) and
Model
SX-7
(and
SX-6, SX-5 and SX-4)
are new
types of receivers featuring microcomputers for
easier
operation. The AM/FM tuner stages incorpo-
rate
quartz
PLL
synthesizers for high stability,
while the
power
amplifier stage is a non-switching
amplifier which
achieves class A
quality
with class
B efficiency
(not
included in the
SX-4
model).
PIoNEEF| ELECTFICINTC CCtFtFCtFtATtCtN
1
chome. Mesu.o ku. rokyo 153.
J5p5n
U.a. tfcritlaF
alaC?Flo|llca CC'FFC,;|AY|C|N
a5 orro.d o. ve. Moonach e. New Je.sey
O7O74,
t)S A
FlONaaE
aL:ClFlC,l\IC
ll(rFC'PC' N.V. Lu thasen Haven
I
2O3O A..we.p
Berg'um
FroNaatl
an.actFctNlca aua?FAl-ra ETY.
LYo.
1 7a
1Ba
Bound ro. s 31
95.
aust.6r,€
F H
O
AUG.1981
Printed
in
lapan
BLOCK
DIAGRAMS
SX.4/KU
FM FRONT
ENO
FM
IF
AMP
A DETECTOR
FM
MPX STEREO OEMOOULATOR
FREQUENCY
OISPLAY
-
toon
Fx
l--
GNo
!
IF
AHP
A DETECTOR IC
ii#n i*---- l
TUNING
OETECTOR
IC
P06004
R6
R7
voo
R8
R9
,,o
ffi
Rtl
KO
KI
K2
K3
.'
IRQ
PO
bl
PLL
SYNTHESIZER CIRCUIT
FT4,/AM
S€LECTOR
8CO
TO
OECIHAL OECOROER
---4---r.:--]-:
ItPx
STEREo
oEcoo€R
Ic
POWER AMPLIFIER
AUX
/ vroEo
R.
CH
REC
T
F€lADAPToi
PLAY
FUXCTION
SELECTOR
i-
XUT
I
NG
CONTROL
39.6d8
AT rtHr
+
"rr
r*S*
_.Qp-q
oFF
TAPE,/AOAPT
SW
{I
HOOE
SW
-----O
t
moro
or
LOU0llESS
sw
:
SPEAKERS
t"
fr
l
pxoHes
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*
#
l+-fl
t-
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J"
lUN
ER
sEcrrofl
Eq
AXP
FUIClOli
SELECTOR
2
AC l2Ov
60Hr
SX-s/KU
FH
FROIIT
EiTO FM
IF
AMP.
A OETECTOR
FREQUET{CY
OISPLAY
MPX
STEREO
o€cooER
Ic
LEO
t{UTERIC
OISPLAY
IF
AMP
A OETECTOR
IC
,L-'
L-'nn
I
l_t l_t
.l_t
l_t
I
oerscron
I
I
stGr{AL
I
METER
I
our
TUNING
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IC
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Rrl
KO
r(t
K2
K!
PI
lRO
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PLL
SYNTHESIZER
CIRCUIT
PHONO
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AMP
FMlAM
SELECTOR
8CO
TO
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/E
Y9 YO YI Y2 Y3 Y4 T!
lux
/
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il
POWER
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s€L€cToR
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F
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POWER
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cotTRoL
crlculT
POWTR
TRATSFORMER
AC lzov,60Xt
3
AC
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SX-6/KU
AM
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AM
STEREO
CONTROL
CIRCUIT
MEMORY
I
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-42
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o
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C IRCU IT
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