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()rrloruEEn"
ORDER NO.
ARP-OO9-O
COMPUTERCONTROLLED
six-5
STERE ORECEIVER
MODELSX6 COMES FIVE VERSIONS
IN DISTINGUISHED FOLLOWS:
AS
Typo VoltagE Rem.lks
KU 120V only U.S.A.model
KC 120V only Canada model
'l1OV,12OV,220V
and 240V lswitchable) Generalexport model
s/G 11OV. 12OV,22OV and 240V (Switchable) U.S.Militarymodel
YP 24OV only Australia model
o This servicemanualis applicableto the KU type.
o For the circuit description,pleaserefer to the model SX-7 servicemanual(ARP-047).
r Ce manuel d'instructionserefdreau modede r6glage, frangais.
en
o Estemanual servicio
de trata del m6todode alusteescritoen espaiol.
CONTENTS
SPECIFICATIONS 2 7 . S C H E M A T ID I A G R A M
C 13
2. F R O N TP A N E L F A C I L I T I E S . 4 8. ELECTRICAL PARTS LIST
PARTS LOCATION. o 9. EXPLODED I E WV 21
4. PACKING 10. ADJUSTMET S .
N 23
B L O C KD I A G R A M I nEc
uce. 25
o. .
P . CB O A R D S O N N E C T I O N A G R A M
C DI . AJUSTE 27
PIC'NEEFI ELECYFICTNIC CGIFIFGIFIATIC'N a 1. Mesu.o
U.a, tElNttal aLlctFo|llcl CC'FFG,FAYICTN aS oxro.d cj. ve. Mo 70-24 U S A
tlmlltF lLCTaC,itC a-t FC,FE| N.v. Lu'ihasen B3ver, 9,2O3O ati.we.p Bergtr)m
FlollatEt aL-CTa|
F H O I U L Y l 9 8 l P r i n t e dn l a p a n
i
1. SPECIFICATIONS
AmplifierSection StereoSeparation. ... lkHz;4OdB
3 0 H zt o 1 5 k H z ; 3 5 d B
C o n t i n u oA v e r a g e o w e r0 u t p u t i s 3 0
us P Frequency Flesponse 2OHzto l5kHz +0.5d8,-1dB
w a t t s *p e r c h a n n e l ,i n . a t 8 o h m s r o m
m , f SpuriousResponseRatio. ...65d8
20 Hertzto 20,000 Hertzwith no more l m a g eR e s p o n sR a t i o
e .65dB
l F R e s p o n sR a t i o .
e . .90d8
than % totalharmonic
0.02 distortion. AM Suppression Ratio . 55dB
Total HarmonicDistortion(2OHertzto 20,000 Hertz, SubcarrierProductRatio. ...40d8
8 o h m s ,f r o m A U X / V I D E O ) SCA Rejection ratio . 60dB
continuous ratedpoweroutput . . No more than 0.02% MutingThreshold . . 29.3dBf (8pV)
15 watts per channelpoweroutput Antenna Input . . 300 ohms balanced, ohms unbalanced
75
No more than 0.027o AM Tuner Section
f n t e r m o d u l a t i oD i s t o r t i o n 5 0 H e r t z ;7 , 0 0 0H e r t z= 4 : 1 ,
n (
Sensitivity
8 ohms, rom AUX/VIDEO)
f
lHF, ferrite antenna . . 300pV/m
continuous ratedpoweroutput . . No more than 0.02%
l H F , e x t e r n aa n t e n n a
l 15pV
DampingFactor (20 Hertzto 20,000 Hertz,8 ohms)
Selectivity ....27d8
50
Signal-to-NoiseRatio ..50d8
In p u t ( S e n s i t i v i t yml p e d a n c e )
/
lmageResponse Ratio . 40dB
PHONO ..2.5mV/50kilohms
lFResponseRatio. ..73d8
T U N E R ,A U X / V I D E O T A P E P L A Y
,
Antenna Built-in ferrite loopstickantenna
1 5 0 m V / 5 0k i l o h m s
P h o n o v e r l o a d e v e l( T . H . D .O . 1 % 1 , 0 0 0 H 2 )
O L , Miscellaneous
PHONO 130mV P o w e rR e q u i r e m e n t s A C 1 2 0 V ,6 0 H z
Output ( Level/l mpedance) PowerConsumption ...200W(UL)
T A P ER E C . 1 5 O m Y l 2 2k i l o h m s Dimensions . 4 2 0 ( W ) 9 8 ( H )x 3 1 1 ( D )m m
x
Frequency Response 1 6 - 9 / 1 6 ( Wx 3 - 7 l 8 ( H )x 1 2 - 1 1 4 ( D l
) in
P H O N O( R I A A E q u a l i z a t i o n3 0 H z t o 1 5 , 0 0 0 H 2 1 0 . 3 d 8
) W e i g h t( w i t h o u tp a c k a g e ) . . . . 5.8 kS(12lb 13oz)
T U N E R ,A U X / V I D E O T A P E P L A Y
, Furnished Parts
. . . . 1OHzto
50,000H21!'uoe FM T-type Antenna
1
Tone Control
DryBatterySUM-3"AA" . ....2
BASS. ..18d8(100H2)
StationCard. ......2
TREBLE . .18d8(10kHz)
OperatingInstructions 1
Loudness Contour (Volumecontrol set at -4OdB position)
. . +6dB(100H2)
H u m a n d N o i s e( l H F , s h o r tc i r c u i t e d n e t w o r k )
A
PHONO . . .76d8
AUX/VIDEO,TAPEPLAY. ....96d8
FM TunerSection
U s a b l e e n s i t i v i t y M o n o ; 1 1 . 2 d B f( l H F ) ( 1 . O p V , 7 5 h m s )
S . o
5 0 d BO u i e t i n g e n s i t i v i t . . . . 1 6 . 3 d B f( 1 . 8 p V ,7 5 o h m s )
S y
Stereo;37.zd9f (19.9pV,75 ohms)
S i g n a l - t o - N o iRe t i o
sa M o n o ; 7 5 d 8( a t 8 5 d B f )
S t e r e o ; 7 0 d Ba t 8 5 d B f )
(
Distortion at65dBf)
(
Mono. ...100H2;0.15%
lkHz:0.15o/o
6kHz:O.2o/o
Stereo ....100H2; 0.3% *Measured pursuant to the federal Trade Commission's Trade
lkHz; O.3o/o Regulation rule on Power Output Claims for Amplifier.
6kHz:O.4o/o
NOTE:
CaptureRatio. ....1.0dB Specifications and design subject to possible modification without
AlternateChannelSelectivity .. .. 400kHz;60dB notice-
S E T T I N GU S E T H E A M C H A N N E LS T E P
SWITCH (on the rearpanel)
Before the receiverleavesthe manufacturingplant, this
switch is set to the channelallotmentplan of the destina- CHANNEL STEP
t i o n . F o r t h e U . S . A . .i t i s s e t t o 1 O k H z .C h e c kt h a t t h e f-Iil iTil
switchis set properlybeforeuse. 9lHr J
?? LtOrHz
S e t i t t o t h e 9 k H z p o s i t i o nw h e n t h e c h a n n e la l l o t m e n t
plan is changedand the intervalsbetweenthe AM broad-
l OkHz position
c a s t i n g t a t i o n s h a n g er o m 1O k H zt o 9 k H z u n i t s .
s c f
NOTE:
Contact your dealer and inquire if you are not sure about the
chan nel al I otment pla n.
L O A D I N GT H E B A T T E R I E S
Two size "AA" dry batteriesare provided as accessories.
They are used to retain the station presettingmemory
functions.
Beforeusingthe unit, disconnect the power cord and load
the batteriesinto the compartmenton the rear panel as
follows: Fis.2
1 . S l i d et h e l i d i n t h e d i r e c t i o no f t h e a r r o w a n d o D e n h e
t
c o m p a r t m e n(ts e e i g . 1 ) .
F
2. Load the batterieswith the polaritiesproperly aligned
with the marks on the inside of the compartment(see
F i s .2 ) .
3. Align the tab of the lid with the interlocking oleand h
d e p r e sts e l i d l i g h t l y .
h
Insert tab into
i n t e r l o c k i n gh o l e
Fis.3
Fis.4
Battery Precautions:
lf batteriesare incorrectly used, they may leak or even 4 . There are rechargeable dry cell batteries and non-
break open insidethe batteryholder.Observe following the rechargeable cell batteries.
dry Always readthe noteson
precautions when inserting and replacing batteries.
the the battery to be surewhich kind you have.
1 . A l w a y sb e s u r et h e + a n d - e n d sa r ea l i g n e d r o p e r l ya s
p 5 . When replacingthe batteries, alwaysuse the sametype
shownaboveand asmarkedon the batteryholder. o f b a t t e r i e sc a r b o n i n c )a st h e o n e so r i g i n a l l y r o v i d e d
( z p
2. Do not usenew batteriesand partly used batteries at w i t h t h e r e c e i v e rD o n o t u s e a l k a l i n ea n d n i c k e lc a d -
.
the same time. mium typebatteires.
3. Do not use different brands and typesof batteries the at
same ime.
t
3
2. FRONT PANEL FACILITIES
-)ll
_-FFF.o_o _#
{D|ffi
_!E nnl*.
./tttttt,uttl
T,-;r T:C] T-w-'l r;;-l r;Gt r;E-l
l\Ui l\ri: \+4
O powen
swtrcH @ T U N I N GS W I T C H
Poweris supplied the unit when this switch is depressed
to This switch is usedto tune in the station.
("in" position). Depress the A part to tune in a stationwith a higherfre-
quency than that on the display;depress the V part to
O STETIONDISPLAYWINDOWS tune in a stationwith a lower frequency.
Insert the frequency cards of the broadcasting
stations
which have been preset into the STATION CALL
switches.
@ FM STEREoINDICATOR
This lightswhen receiving FM stereoprogram.
an @ FM SWITCH
Depress switchfor FM reception.
this
@ FM I N D I c A T oR
This lightswhen receiving (Thislights
the FM broadcasts. @ nm swtrcH
when depressed FM switch).
the Depress switchfor AM reception.
this
O AM INDICATOR o |NPUT
SELECTOR
(This lights
This lightswhen receiving AM broadcasts.
the PHONO: Pressthis switch when playing a record
when depressed AM switch).
the on the turntable connected to the
PHONOjacks.
G) DISPLAY AUX/VIDEO: Pressthis switch when listening to an
This indicates
the broadcasting
frequencywhen a station audio component connected the AUX/
to
hasbeentuned in. VIDEOjacks.
) TUNED INDICATOR @ voluruE coNTRoL
This lights when the optimum tuning point has been Use this control to adjustthe output levelto the speakers
locatedduring reception. blinkswhen stations being
lt are and headphones. Turn it clockwiseto increase output
the
searched the STATION SCAN mode.
in level.
G) PHONESJACK @ rururruc
sELEcroR
Plugthe headphones plug into this jack when you wanr to This is usedto select the reception mode.
listenthroughyour stereoheadphones. STATION SCAN (released position):
When the headphones connected,no sound is heard
are When the TUNING switch is depressed, the broad-
from the speakers. castingstationsstart to be scanned and this procedure
stops once a station has been picked up. The program
@ BAsscoNTRoL of that station is heardfor about 5 seconds. tuning The
Use this control to adjustthe bass the sound.Whenthe
of operationthen resumes and sound is heardin the same
control is moved to the right (+ direction), the bassis
way. Eachof the stationsis thus pickedup in turn.
emphasized, and when it is moved to the left (- direc_ When the MEMORY/STOPswitch is depressed once
tion), the bass attenuated.
is you hear the sound of the desiredprogram,the tuning
c ) T R EB L E ON T R OL
C operation stops and the unit is set to the reception
Use this control to adjust the treble of the sound.When mode.
the control is moved to the right (+ direction),the treble MANUAL (depressed position):
is emphasized, and when it is moved to the left (- direc- F o r m a n u a lt u n i n g . D e p r e s sh e T U N I N G s w i t c h a n d
t
tion), the trebleis attenuated. t u n e i n t h e s t a t i o nm a n u a l l y , a c ht i m e t h e T U N I N G
e
switch is depressed, frequencychanges 100kHz
the in
@ BALANCECONTROL steps during FM receptionand in lOkHz stepsduring
Usethis control to balance volumeof the left and right
the AM reception.When the TUNING switch is kept de-
channels.lf the sound appears be louder on the right,
to pressed, the frequencyis continuouslyscanned. Tuning
i t m e a n st h a t t h e v o l u m e o f t h e r i g h t c h a n n e l s h i g h e r .
i stops when the upper or lower limit of the frequency
Turn the balancecontrol to the left and adjust.Conver- band id. reached.
sely, if the sound appearsto be louder on the left, it
NOTE:
m e a n s t h a t t h e v o l u m e o f t h e l e f t c h a n n e li s h i g h e r . ,AM CHANNEL STEP switch on the rear panet should be set
Therefore, turn the balancecontrol to the right and to correct (lOkHz) position.
adjust.
@ rape/aDPTswtrcH
@ srnrroN tNDtcATORS This is depressed
when usinga tape deck or adaptorunit
The indicator that corresponds the STATION CALL
to connected to the rear panel TAPE/ADAPTOR jacks.
switchwhich hasbeendepressed lights.
NOTE:
@ uoruoMUTE
oFF SWITcH
When presetting a station, all six indicators light in sequence for T h e s o u n di s h e a r di n m o n o w h e nt h i s s w i t c hi s s e tt o t h e
about 5 seconds. d e p r e s s e p o s i t i o n .N o r m a l l y ,t h e s w i t c h i s k e p t a t t h e
d
released position. During the FM reception, the noiseis
@ s r R r I o N cA L L S WIT cH E S reducedand receptionis made clear.When the station is
Theseare pressed call out presetbroadcasting
to stations distant and its signals are weak, depress the switch and
and to presetthe station. t u n e i n t h e s t a t i o nm a n u a l l y .
To call out a station,first set the desiredfrequencyband
using the FM or AM switches and then pressthe desired @ LOUDNESS
SWTTCH
switch. W h e nl i s t e n i n go a p e r f o r m a n cw i t h t h e V O L U M E l e v e l
t e
is low, depress this switch and the bassand treblewill be
@ | N P U TT N D T C A T O R S accentuated.
T h e s el i g h t w h e n t h e I N P U T ( P H O N O r A U X / V t D E O )
o W h e nt h e v o l u m ei s l o w , t h e h u m a ne a rf i n d si t h a r d e r o
t
switch is oressed. h e a r t h e b a s sa n d t r e b l e t h a n w h e n t h e v o l u m e i s h i g h .
T h e L O U D N E S S w i t c h i s t h u s d e s i g n e do c o m p e n s a t e
s t
@ TAPE/ADPT ND|CATOR
| f o r t h i sd e f i c i e n c y .
This lights when the TAPE/ADPT switch is depressed.
@ meuonY/srop
swtrcH
This switch is usedto preset the broadcasting stationsinto
t h e S T A T I O NC A L L s w i t c h e s .
This switch is also usedto stop the tuning operation
d u r i n gt h e S T A T I O NS C A Nf u n c t i o n .
3. PARTS LOCATION
NO?ES:
The ,i. marh found on some component pdrts indicates the importance of the
sofety foctor of the port, Therefore, uhen rcplocing, be sure to use partsof identicdt
deeignotion,
For your Pafis Stoch Controt, the fast mouing items orc indicated raith the
marhs *) and *
A' GENERALLY MOVES FASTER THAN *
Thia cloeaificotioneholl be adjusted by each disttibutor because dependson model
it
n umber,tempe roturc,h umidity, e tc.
Front Panel
View
Displaycover Knob ITUNING)
ANR4O7 AAD4OO
Knob (FMl
Top cover AAD4O2
ANE.369
Knob (AM)
AAD403
Front panelassembly
-
ANM.O74
Knob (VOLUMEI
Knob (POWER) --------------- AAB'273
f tD
AAD406
Knob {INPUT}
Knob (BASSJREBLE AAD-399
AAB.274
Knob ITAPE/ADPT,TUNtNG,
MONO,LOUDNESS)
AAD405
Knob (MEMORY/STOP)
AAD.4O4
Front View with PanelRemoved
rt LED numeric
AEL.378
jack (PHONESI
Phone
AKN{29 Variable
resistor(VOLUME)
ACT-128
A t t Pushswirch IPOWER)
push switch
* I 4-ganged
ASG-521 (TAPE/ADPT,TUNING,
MONO,LOUDNESSI
Variableresistor(BASS) ASG-300
ACT-140 tt * Tact switch
ASG-177
Variableresistor
ACT-140 Controlassembly
GWX-706
Variabte (BALANCE)
resistor
ACT-023
6
4. PACKING
Mark No. Part No. Description
1. AHA-294 Side pad
2. AR8438 Operatinginstructions
3. ADH-004 T-type FM antenna
4. AHD-953 P a c k i n gc a s e
RearPanelView
* * Slide switch (AM CHANNEL STEP!
ASH-O15
Terminal(AM STEREOOUT)
AKB076 ,.r AC socket(AC OUTLETSI
AKP-039
(ANTENNA)
Terminal
Strain relief
AKAO17
AEC-358
T e r m i n a(tP H o N o , A U X / VD E O , R E C )
t AC power cord
AKB-079 ADG.O52
* Terminal(SPEAKERSI
Terminal(PLAY) AKE-10'l
AK8077
Top View
A*tFuse(64)
Crystal resonator AEK.l09
ASS-016
Complex assembly
GWM.2O7
. A * Powertransformer
ATT40
A** Fuse(eel
Barntenna assembly
AEK.lOO
ATB-636
5. BLOCK DIAGRAM
FT FRONT ENO FM IF AMP A DETECTOR FM MPX STEREO DEMOOULATOR FREQUENCY DISPLAY
IF AMP A OETECTOR IC MPX STEREO L.P,F / AF AMP LEO ITUTERIC OISPLIY
OECOOERIC
T_ ,L-'L-'DN
loon I t_t l_t .l_t l_t
FTF
730
cxo!
osrecroa
I oaTA cK2 Cr(l
I sronau
I rrETR
our
I
-
AT TUNER TUNING OETECTOR
8 R-Axr..
- Ar rurER c
r
P3 E,X'TAL
P2 so
Rr3
R4
PLL SYNTHESIZER CIRCUIT IC P06004
FM IN RESET
to RESEr
PHONO EO. AMP.
A M C H A N N E LS T E P
IC M74LS42P
Y8 Y9 YO YI Y2 Y3 Y4 Y!
r2 34 5 6
M U TI N G
S T A T I O Nl D .
Ii
CONTR L O
lur / vroEo
POWER AMPLIFIER
4l.3dB AT lltlr
t. cx
FUIICTIOT SELECTOR
ifc r 5 . 5V / 8 I I
lgzlxtrro'-
'LIY
t* .n r_#@*
srer*ens
. _ . o p _ qo F F ,<5
TAPE,/ADrprsw xooe sw
S
f oN
R .C X . " o * o -"'----------v
G fl PHoxEs
--s-------*---\H
LOUDNESS
sw
)r
f1--=Lu
oFF
| .+
l-H -
-O
POWER SUPPLY CIRCUIT
CONTROL
crRcurr
AC l2OV, 50 Xr
AC OUTL ETS
-
a
E 1 I
t2l 3
il
6.P .C.BOARDSCONNECTION
DIAGRAM
A
B
C
D
-1",'1
4 5 6
COMPLEX Ass'y (cWM- 2O7)
1-*
Ii'*l
i*,.,-"?6''''-
o,ni,ft t \9
*9,r, i,,'*u,.,oo
.3$'*lt{m,. *u"" ,
is*'l ir*,li*
m,{f .,,,
ileu**ull,
F*i.,\#,",,"0 i-ll_
1,i,
nl
""'],_*
;61'T
'Ti f!;
I H*: I I ' al |
+E;,
R45I
1o(]
I
iffiEi*yiiif
T
** lTiir tnil
{::,Wlil} '*r,*++,
il "lir,f
t
o
t*,
ll ?
q5 P06004
"'J'i*r
| ,i'i;{ 712,;1t',i' 8':'f,t
Iililiffil;fh]-l
Hl
JE=r JIJ ..o
lt
tl ll
il
t'rt
-,rryl'ilf$;ilt
;I It
ii
t&
*slib
ln[
,*I
fil22o^
-T i;i i"*+
rH
-l\'T-,i'fu;i''t\'
-i
1
ri i FL
IIii't
IiilJ,i#
q"
I{,,,,F11 I
J'd f'"F"t**'
8+ R31
t00( 10(
J
1.'
D 9 , 1 0, 1
r 5
2-1 Kt
t'"'i1l
0106JA10r
t000Fl
-2O9
O2O3,2O4.2O7
1S 1 5 5
5
R?55 .
1
220? R l"
d R2a2
Q203 205,
- D3l2r i
?roK JC50
l
- qzll Q213,214
o
CONTROL Ass'y(B
@t1 t:,t(, Dm Q.ms
r'9h c \q
ifi btpJl
,oni,t
I
oott d o
tzu* "Ra1
tl
-1
-oz o / o o o l l d
l
o o
--l-'_tt *lTttl1
-llo,"r- I J;,
-rJj.,l I l1
"+T'ff'lt#"
fffil" R3ii I
il
i6u
u1! looxI I ruillt@
+1 I l r----t
'il
+'Ll'"l
nlI". ilI [l
o213
Q2O5
4 5
7 8 I
O@ O@ O@ O@
AUX,/VIOEO REC,/OUT PLAY/IN
,x v r 3 2 o A - 3
xv'226 2^ 1- | " " / ' I I 'T'rf-:tj;i
R3oz
H
T36T ?
l,,si++; I .[-t-,5*, I
(*''' 'I
J ,,*
Rrorl
I ilfr'l'r
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l'1,;1't,.,
r
llsl
I f,.., I '+,"ih'11: itii'.I
tltt,ixt t9t9
- - c z^z t r L r c
m{'t tE i-,"!flFt
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t
| - -\ I ?B 1
" 6
I
davil,
t::r r,',/,,1,,=F .; i tfl'i""
oo4roooe
,
*?r*i,,]*
q*i
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{-Ti,-"}"i",F#
asc,ele
e2oz
I,,+
I { lqr.l.'jiru !?3r
fzJl5;Pi
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:l
1"-f: : ,Ffr,,,, qq$T-
i"i1l'r.*;1"; ;i'-- tiei'".,.r
,.[$Fl I
b"tffil {"+t'lbJ'i lr It';''
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T-iil l l;af ^ -'"'
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^
t,,l J .,T_,I"
T,, ti!, i,i,"' L n i ? - ll T I f$T*rrr'T*J
ltr:1;*lll'
ulr
ii*l
*# ri*llllr
I 00471000P
0022 4 I Rt42 4. I L
16 c,., l.i n*+
I bl'!l*{ I ;
'
I,,.t-t*Jr I itru "0"liil'"'"d# 1*!
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*fi llt':i.,,, Hl'l J,.'"il'"ll I I l t*-.' | | | | l
'lr
.!II ffu:r;ru,*gT
g,tifi;-," Ti*:-+n rili",r;=iluT m
-*f Q.- Tilr,
T 220/80
I
J'iii ,l: ,l' t*,1 .l 1tr
I " 'oil1"'
+,14.f.J 0205
KZt120
E , ]:;' ","1n{ :1. '
raffil '[r;yo I^
ii?9n"l I lf, c"oe - ? "l * 1.2?c
n;l't ifirf 9,,|; Ttil,*li : l: +l't-l
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