Text preview for : hfe_pioneer_sg-530_service.pdf part of Pioneer hfe pioneer sg-530 service Pioneer Audio SG-530 hfe_pioneer_sg-530_service.pdf
Back to : hfe_pioneer_sg-530_servic | Home
()rqoNEER'
ORDERNO.
ARP-125,-O
GRAPHIC EOUALIZER
siGIIE'3c|
MODEL SG.53OCOMESIN SIX VERSIONSDISTINGUISHED FOLLOWS:
AS
Type Voltage Remarks
KU 1 2 0 Vo n l y U.S.A. model
R 1 10V - 12OV and 22OV- 240V (Switchable) General export model
R/G 110V - 120V and 22OV- 24OV(Switchable) U.S. Military model
WE 220V -240V Europe model
WB 220V -240V United Kingdom model
WP 220V -240V Australiamodel
This service the R, R/G, WE, WB and WP types,
manualis applicable the KU type. Whenrepairing
to
please page15.
see
CONTENTS
1. FRONT PANEL FACILITIES 2 7. P.C.BOARDS ONNECTION IAGRAM . . .. .
C D 9
2. SPECIFICATIONS 3 8. SCHEMATIC IAGRAM ..
D 11
3. B L O C K D I A G R A M 3 9. EXPLODED
VIEW 13
4. C I R C U I T E S C R I P T I O N .S
D . 4 I0.PACKfNG ......14
5. PARTSLOCATION 5 1 1 F O R R , R / G , W E , W BA N D W P T Y P E S 15
6. PARTSLIST . 7
PICINEEFI ELECTFICINIC GCIFIPCIFIATICIN 4-'l , Mesuno 1-chome, Mesuno-ku, Tokyo'153, Japan
PICINEEFI ELECTFIONICS [UEiAl lNC. 1925 E. Dominguez St., Long Beach, Califonnia 9OAIO U.S.A.
PIONEEFI ELECTFIGINIC [EtJFIclFE] N.V. Luithagen-Haven 9, 2O3O Antwenp, Belgiumi
PfONEEFf ELECTFIONICS AIJEITFIALIA FTY. LTE,. 178-184 Eloundany Fload, Elnaeside, Victonia 3195, Austnalia
FGO MAY 1982 P r i n t e dn J a P a n
i
www.hifiengine.com
1. FRONT PANEL FACILITIES
POWERINDICATOR
2 ) O C T A V EC O N T R O L S
il:
.- - _---- llr:::-
lElEl : j,, r*t
l:-l l-l l-l l-l l-l l-l l-l l-:-1 lrl l-l l-l l-l l-ll-l l-: IT"
;:E=E=E-E=E=E=E=,=E=E=H=E=E=E=E=
" t-"_l '-''-''-''|-l = I-
t
fnt 6 -t r-r r-r r-r r-r r-r r-, ,- -
t_t t-t t- l-l l-l l-l l- "-l l-l l-l l-l l-l l-l l-l l- "
|
(rr*$
l||lL.: uuuu-u-u-u-'"-Urli-ll-Ll-Url-Li-':
rsr l_l l_l l_l l_l l-l l=l l_ i_' t*"*"^'*"'"
I
I )POWERSWITCH (3) ADAPTOR/TAPE (4)EOUALIZERWI CH
S
ON/OFF SWITCH
O powenswrrcH oN/oFFswtrcH
@ RoaproR/TAPE
Depress this switch to turn power on to the SG-530.Be- Depress this switch when listening the tape deck con-
to
cause this switch is connected the secondary
to windingof nectedto the rear panelTAPE terminals.In the ON posi-
the power transformer, power is still suppliedto the pri- t i o n , o n l y t h e s i g n af r o m t h e T A P E P L A Y t e r m i n a l s n -
l e
mary winding evenwhen the power switch is returnedto t e r s t h e e q u a l i z e rI.n t h e O F F p o s i t i o n ,o n l y t h e s i g n a l
the STAND-BY ( t] ) position.Alwaysunplugthe power f r o m t h e E O U A L I Z E R I N P U T t e r m i n a l se n t e r s t h e
cord from the wall socketwhen the SG-530 is not going equalizer.
t o b e u s e df o r a l o n gt i m e .
@ E o U A L I Z E RS W I T C H
@ OCTAVE CONTROLS o P r e s sh e r i g h t - h a n d O U A L I Z E Rs w i t c ht o c o m p e n s a t e
t E
Movethesecontrolsaboveor below the center(zero)posi- f o r t h e f r e q u e n c yr e s p o n s e f t h e s i g n a l s n t e r i n gt h e
o e
tion to boost or attenuatethe corresponding frequency E O U A L I Z E RI N P U T ( E ) t e r m i n a l s .T h e c o m p e n s a t e d
b a n d sb y u p t o 1 1 0 d 8 a s s h o w ni n t h e f i g u r eb e l o w .T h e s i g n a l s r e t h e n m a d e a v a i l a b l er o m t h e E O U A L I Z E R
a f
seven frequency bands are centered at 60H2, 150H2, O U T P U T( F * l l t e r m i n a l s st h e o u t p u t s i g n a l s .
a
400H2, 1k{z, 2.4kHz,6kHz and 1SkHz. o Press oth switches hen recording ignals hichhave
b w s w
beencompensated the SG-530. by The compensated sig-
150H2 4O0Hz 1k{z2.4kHz 6kHz
n a l s a r e t h e n m a d e a v a i l a b l er o m t h e E O U A L I Z E R
f
l0 OUTPUT (F.;nl lsr.ntinslsand ADAPTOR/TAPE @
8
teminals.
66
!4 T h e s a m e o u r c e i g n a l a r eo u t p u t a t t h e A D A P T O R / T A P E
s s s
w2
(.n r @ t e r m i n a l s st h e s i g n a l s n t e r i n gh e I N P U T l E )
a e t
zo t e r m i n a l sW h e nt h e f r o n t p a n e l ' s D A P T O R / T A P E w i t c h
. A s
?z i s p u s h e dt o t h e O N p o s i t i o n ,t h e s i g n a l s n t e r i n gt h e
e
!'+
t6 ADAPTOR/TAPE @ t e r m i n a l sa r e m a d e a v a i l a b l e t
a
6 the OUTPUT (rill) terminals. Usethis when connecting
10 a s e c o n d a p e d e c k o r c o n n e c t i n g n a d a p t o rc o m p o n e n t
t a
s u c ha s a m i c m i x i n ga m p l i f i e r W h e na t a p ed e c kh a sb e e n
.
r00 1k lok rook connected, front panel's
the ADAPTOR/TAPEswitchfunc
F R E O U E N C lY ( H z )
N t i o n sa sa t a p em o n i t o rs w i t c h .
Octavecontrol variationcurves
2
www.hifiengine.com
2. SPECIFICATIONS
GraphicEqualizer
Section Miscellaneous
Equalizer ange R PowerRequirements ....AC120V,60H2
( l n d i v i d u a c h a n n e la d . i u s t )
l .110d8 PowerConsumption ..10W
6 0 H 2 , 1 5 0 H 2 ,4 0 0 H 2, i k H z , 2 . 4 k H z , 6 k H z , 1 5 k H z Dimensions . 4 2 0 ( W ) 9 7 ( H )x 2 1 6 ( D )m m
x
Total Harmonic Distortion 1 6 - 9 / 1 6 ( W ) 3 - 1 3 / 1 6 ( Hx 8 - 1 1 2 ( Di ) .
x ) n
( 1 k H z ,A l l C o n t r o l ; F l a t , O u t p u t : 1 V ) 0.005% W e i g h t( w i t h o u tp a c k a g e ) 2 . 8 k 9 ,6 l b 3 o z
G a i n ( C o n t r o l :F l a t ) OdB Furnished Parts
Max. Output Voltage
Connectioncordwithpinplugs ......2
( 1 k H z , . H . D . : . O 1 VR g : 5 0 k Q )
T O o, 6V OperatingInstructions 1
Frequency esponse R . . 5Hz- ZOtHz+laA
S i g n a l - t o - N o i Re t i o
sa NOTE:
( l H F A N e t w o r k s h o r tc i r c u i t e d1 V O u t p u t ) . . l 0 0 d B Specifications and the design subject to possibte modification
, ,
without notice due to improvements.
Inputlmpedance ...SOkohms
Outputlmpedance N o m o r et h a n 6 0 0 o h m s
3. BLOCK DIAGRAM
6p Sl-3 Sl-2 Sr-r
,,>lW -6.5d B- -26.5d8V
t--t
Lt uil
! 52
TAPE (atl kHz)
,
I EO REC
LCH
rN - 1 0 d B - + 10 d B
[- (at l kHz)
EQUALIZER/REC
IEQ
I orrtA-
REc
f
gff o'ru
t Fn
ON o,N ___i-
TAPE E OR E C
POWER 4 0 O H z S I G N A LP O L E
lrHz SIGNALPOLE
2.4kHz SIGNALPOLE
6kHz SIGNAL POLE
l5kHz SIGNAL pOLE
F O RS L I D EV O L U M E
K N O BL E D
RCH
r-tr{
EOUALIZER
L- our
R C h o n n e l ( S o m e o s L C h o n n e l)
t_ RC
TAPE
L plav
NOTE:
Push-buttonswitchesS1-i, S1-2 and S1-3are locked independently.
5
www.hifiengine.com
4. CIRCUIT DESCRIPTIONS
GRAPHIC EOUALIZER SECTION by the LED is steady. Further, the load on Q18
A graphic equalizer is a device which divides the and q2L is light because the LED current is
audio frequency band into several segments called obtained after full wave rectification. Q23 goesON
octaves so that the level of each individual octave when the EQ switch is tumed ON to release GND
can be increased or reduced. The SG-530 divides on the base side, and the LED lights when Q23
reproduced frequencies into 7 octaves with center goesON.
frequencies of 60H2, 150H2, OOHz, 1kHz,
2.4kHz, 6kHz and 15kHz. The level of each swlTcHsEcTloN
octave can be varied throughout a range of 110 dB,
o TAPE switch (S1-3)
and the left channel and the right channel can be
adjusted independently. This switch selects between a program source or
Further, when the equalizer switch (EQ SW) is a tape playback (or REC monitor) signal.
ON, the LEDs built into the level controls (sliding . EO REC switch (S1-1and S1-2)
variable resistor knobs) light to allow the fre- Turning this switch on causes an equalized
quency response of each octave to be determined program source signal to be output to the REC
visually. The equalizer element is an LC series terminals.
resonance circuit in which the active element is
an inductor equivalent. This resonance circuit is o EO switch (S1-1)
connected to the variable resistor linking the This switch determines whether or not a signal is
positive and negative input terminals. (See Figure to be equalized; when this switch is OFF, the
4-1.) equalizing circuit is by-passed and the input
This causes the impedance of the resonance signal is connected directly to the output ter-
circuit and the resistance of the variable resistor to minals.
act as constants for the input circuit and the
feedback circuit. Further, buffer amplifiers are
located before and after the EQ AMP so that the EQ AMP
frequency response of the equalizer element are
nrrenuai'eI
not affected by the impedance of audio equipment
connected to the SG-530.
Figure 4-1 shows the equivalent circuit for the
graphic equalizer section. In the area surrounded
by the dotted line, the circuit on the Q1 side of
point A is equivalent to an inductance and a
resistance connected in series. Any required re-
sonant frequency can be obtained by changing the J
inductance and capacitance of the series resonance
circuit by varying CI, C2, R3 and R4. With the Fig.4-1 Graphicequalizer
SG-530, 7 equalizer elements with different
resonance frequencies are included in one EQ
AMP, and each frequency segmentcan be adjusted
independently. The frequency response of each
octave is boosted when the slider of the variable +llV
Q23
resistor is moved toward the minus input side (the
feedback input side) of EQ AMP ICl; conversely, FOR SLIDE
V R K N O BL E O
it is reduced when the slider is moved to the plus t-?
side. tq
l(
ta{
Iq
P O W E R U P P L YC I R C U ! T
S lt-
tl
A CL I I
As is shown in Figure 4-2, two voltage (+11 V
and - 11.5 V) are supplied by the regulated power
supply of the graphic equalizer section. The LED
set in the knob of each sliding resistor is supplied
with stable current by Q23, so the light emitted F i g . 4 - 2 P o w e rs u p p l yc i r c u i t
4
www.hifiengine.com
s2 s ON ON
I I
I
---Ea-E-ft-O U A L I Z E B
I E OFF
Eo,N@l lGil;_l @:1,_ eon@
lerav 1; l-.--. -. --- -- J ;Pr-Av@-
rAPE : 4. TAPE
L REc (t- | uaec
@
e or r @ 6) eo
- out
rPLAYfd-.- .-.-.-.ll I PLaY@
x
TAPF I TAPE
-nec{H L e'E . - 6 .
' - v
-- s 3 sr2 sr I ON
-l*@- I
eo rru(6- ,
-li Oeo
- out eo rr'r@ 6).o
-
OUT
r PLAY(G.l-, r-rr-rv@
TAPE : TAPE
-nEc (9. I rnec
@
ON ON
I
OFF
I
Eo lN6- EouAL
rzER I rG) eo
-our eorru@
r PLAY(9 l-
. xl t.1
; PLAv@
IAPE
* TAPE X
q REc ^ I L REc (9
(gd
_n T A P E P L A Y B A C KR O U T E
S 1 - 1: E O U A L I Z E R I E O
REC
S1-2:
S1-3 : TAPE
5. PARTS LOCATION
NO?ES:
o The I marh found on some component parts indicatec the importance of the
safety factor of the part. Therefore, when replacing, be sure to use parts of identical
designation.
. For your Parts stoch control, the fut mouing items are indicated with the
marhs ** and *
** GENERALLY MOVES FASTEN THAN *
This classificationshall be adjusted by each distributor because dependson model
it
number, temperature, humidity, etc.
Front PanelView
Front panel Function knob
ANM.l54 ( E O U A L I Z E RE O R E C I
,
AAD24
Pushknob A (POWER) r+- Front panel baseassembly
AAD.417 ANM.l55
Slideknob (FREOUENCY Function knob A (ADAPTOR/TAPE)
AAD483 AAD456
5
www.hifiengine.com
RearPanel
View
Bonnet case
ANE.385
AC power cord
T e r m i n a(lE O U A L I Z E RT A P E
,
ADG.O52
AKB{78
.,\ AC socket
AKPO38
Front View with PanelRemoved
LED(Dl3, POWER}
AEL-382
** Pushswitch
I t].,ll'.::):,',1', (S1 EOUALIZER/EO
,
REC/TAPE)
* I Push switch "l
(S2,POWER} ASG-335
ASG-215
* Slideresistor
( V R 1 - V R 7 ,w i t h L E D )
ACXOl2
Top View with BonnetCaseRemovqJ
A t Powertransformer(T1, 120V
4AT-806 I
AF assembly
GWM-244
VR assembly
AWX.243
assembly
Powerswitch
www.hifiengine.com
6. PARTS LIST
NO?ES;
o When ordeing resistors, first convert resistance values into code fornt as shown in
the following examples.
Ex. I When there are 2 effectiue digits (any digit apart from 0), such as 560 ohm
and 47k ohm (tolerance is shown by J=5%, and K=10% ).
560(-l" 56xIOt 5 6 1. . . . . RD%PSE@m J
47ka 47 x 103 473. .. .. RD%PS a,u,Fj J
0.5a 0R5 . . RNzH @tE6 K
rcl 0ro .. .Rs/P@EEnK
Ex. 2 When there are 3 effective digits (such as in high precision metal film
resistots).
5.62he, 562 x 10' 5621 . . . . RN%SR trBE[Il F
o The 21 mark found on sotne component parts indicates the importance of the
safety factor of the part. Therefore, when replacing, be sure to use parts of
identical designation.
c For your Parts Stock Control, the fast rnouing items are indicated with the
marks ** and *
** GENERALLY MOVES FASTER THAN *
This classification shall be adjwted by each distibutor because it depends on
model number, tetnperature, humidity, etc:
Miscellaneous
Parts RESISTORS
P.C.
BOARDASSEMBLIES NOTE:When ordering resistors, conuert the resistance ualue
into code form, and then rewrite the part no. as before.
Mark Part No. Symbol & Description
Mark Part No. Symbol & Doscription
GWM-244 AF Assembly
R D % P M! ! C J R1_R79
AWX.243 VR Assembly
OTHERS
SEMICONDUCTORS
Part No. Mark Part No. Symbol & Description
Mark Symbol & Description
(120V) ** M5218L o1-o3
A * 4TT-806 T1 Powertransformer
(NJM4558DX)
A AKP-038 Ac socket(Ac OUTLETs)
ADG_052 AC power cord * t 2SC1815 04-417
A (2SC1919)
AF Assembly(GWM-2I14) ** 2sD313 o18.o1e
(2sD880)
CAPAC|TORS
Mark Part No. Symbol & Description * * JAIO1 O2O
(2SA1115/A/)
c E A 1 0 0 M5 0 L C 1 , C 2 ,C 5 ,C 6
** JC501 421-o,24
c E A R 3 3 M5 0 L C 1 5 ,C l 6
(2SC2603/A/)
c E A R 6 8 M5 0 L Cl7, Cl8
c E A 1 R s M5 0 L C19,C20
* 'toE2 D1_D4
c E A 1 0 1 M2 s L C37-C39
(st801-02)
cEA 220M 25L
* KZL120 D5, D6
C40.C41
cEA471M25L C35,C36
* us1035 D 7 - D 1 2 ,D l 5 , D 1 6
(151555)
coMLA 124K50 C13,C14,C33,C34
coMA 153K 50 C29,C30
T lOYDl3BFD D14
c o M A 2 2 3 K5 0 C 9 ,C l 0
OTHERS
c o M A 3 9 3 K5 0 C 3 1 ,C 3 2
cojvfA 563K 50 C'.t1,C12 Mark Part No. Symbol & Description
C K D Y B 1 0 2 K5 0 C23,C24 AKB-078 Terminal 4P
CKDYB 222K50 C25,C26 ( T A P E .E O U A L I Z E R }
C K D Y B3 9 1 K 5 0 C21,C22
C K D Y B5 6 2 K 5 0 C27,C2A
CKDYB 822K 50 C7, C8
ccDSL 221J50 C3, C4
www.hifiengine.com
SwitchAssembly ExternalApearance Transistors
of and lCs
Mark Part No. Symbol & Decription
* * ASG-335 S1 switch(EOUALI
Push ZERl M5218L
EO REC/TAPE}
PowerSwitch Assembly
Ug!_ Part No. Symbol & Description
** ASG-215 S2 Pushswitch(POWER)
ACG-019 c42,C43 (0.01/AC150V)
LED Assembly NJM4558DX
Mark Part No. Symbol & Description
.nn44
* AEL-382 D13 LED (POWER}
il++#
-
-
(AWX-243)
VR Assembly
Mark Part No, Symbol & Dascription
* ACXO12 VR1-VR7
(with LED)
Slideresistor
(20k-83)
2SC1815
rye"No_+q*T--
O LotNo
)fr/--n*
1I\
2SC1919
a.,-";
*
*=-S$f-"*
/ ll\
BUll
cu
2SD313
2SD880 N
rvnc
a\$
ro--fi\.r]
*-lM-"n"
utu
JAlOl
JC501
rvoelro_
f-*/
J\l I
n,.ffi*-r-otno
-
1U\
2*26031A1 Typ. No
/-_\
2s,A1115lAl
.",ni\r}*
rK
vu[J
-
a
www.hifiengine.com
E1
7. P.C.BOARDS DIAGRAM
CONNECTION
I 3l
AF Ass'y l6wM.-Za+)
VOLUME Ass'Y (aWX-Z+e)
A
SWITCH Ass'y
t9 29 24 26 27
I T III
t
tt
ll
,r.,^.
17 t8
VOLUME Ass'y (AWX-Z+g)
'f".iill:
Ol-O3 can be replaced
as follows.
M52181
I -l#i,.I
:H:,0I,
';8,
2
I
www.hifiengine.com
4 5 6
'y (GWM- 244)
09 05 07 Q2J a r 4 Q r 6Q r z Q 4 0 8 a r o
Qr3 O.r8Qfi Q20 uo
qrs or7 o19
: EQ,rr,tN EAiiq!r f{,qE lslE
R6r PL4Y
/^@ A
t5/ n\y
A ^ __g+*
'rti#",.-z'+--n
i
'
r.
O v o(-v +Y
#c38
T- 1oo/25
: q?t
06.
.ol4 -2o.o, r+.
,' : ','. r.l*'-0_!i o*91{
' lii:
+i .1 f- o- ,p
t52i6L .. 'l'*'---*.'.',r-*P': L@" ,"'i,e- +ca6 07
.,.f, rt
T too/25 o.--.|.. ".T:H
9ftr5. .' T47O/2s
rl.6l 6_
sQ11:l' . ,"r)L,
o2o o.*<...+*
A.!qf',,.. , ,. , M
rrs : R?3 47t
R75 3.91 i9i.-+*r"---iii'l "'lot1 r$,
+
0E2 .l
zL1.ao'.t r .,"
.
.9+'1]-_-,.; l
t*--*
!#i.rr'
D12:,
9,l".{(+;iSrlii
.,3&r
'l' f
'az'' *[1
. a rR 7 4 1 5 1 . .
r
15 USiO35-i'
)Y0!l,eFq , i . I ^^ l'------1 o5l=l
i .it!:..-,,--:--!;
Tlolso
o qtk
Raq ^ R43 a7l
lH
^- ? r----fr ?",,# c ra'- 9^., H
'"0 \gL.
lu = lr.->{-
J rr[
+iddo R58 3.sl
*ili,.J .'&',+kA1* r' {iibg-K:i:
o
" ^Y'* n2g gzo
l+ 06 # H/H
4 -:a iH^r-{
. ar5 1Oo- Rtbroo
q:-+
o?""ooJ1^f;n|\ I LO
gC?lHAA.<
R45 47t
- - 9 r- tt' 9 r+ /
-.{ .:.i
;:tf, i'*oJj::.:a ,3h]lPy;
o i'-oi-ffi'::
6
!}---+, .,----------_ qr Y qb
R r J5 6 0 + to/5o w H,--i," . , r u o
r R i t 1 o o t . r ' , i . !|."3ar+. rii:,i^lrr-_-{ ii'i. Rt7 ioo
----=<
. "-l1rt2k.
RrE loo
ll.o R48 47t R4f 47'
il+---44/i----ai '----9
'er q2 i-< z 9 C2s:H^ ? f-+ - ?c-?-5--^H
zzuu9
tto o : -a 220O0 652 3.91
R9 4.71
,ffi7,:19fl5 c H id f f
L {ry? 'tC)L'
c1l =
I
osuJ/ a > 9 _ .,,I R6,r 3.9r
Fl" q s\>ro
-
R34 750
"-Hlf
{q^ Q8
o+
RZ a.7t,,,Q
(}+^.---;nii
f'I l " / l o---s- 7 r
Ro4
i .,ii:{M/+l
. r*--41 HAA
\. I lorl e---- -