Pioneer SA-1520 User manual

Q) PIONEER’
The future of sound and vision.
Service
AL
ETIIEN
STEREO AMPLIFIER
SA=1520
SA=1520S
SA-1520 AND SA-1520S HAVE FOLLOWING VERSIONS.
ORDER NO.
ARP2022
Applicable model
Power
requirement
Destination
SA-1520
SA-1520S
AC120V onty U.S.A. and Canada
AC110V,
120V-127V,
220V,
240V
Kingdom
of
Saudi
Arabia
and
general
(switchable)
market
e This manual is applicable to the KUC type.
e As to the other types, refer to applicable service manuals.
1. SAFETY INFORMATION ................ 2. 6, REMOTE CONTROL UNIT
2. EXPLODED VIEWS, PACKING AND SEOV Se PAG SOSI Seats eoes ae eee oe hak died ae
PARTS LIST uly asasrueaneess oexguey 3 6.1 EXPLODED VIEWS AND PARTS LIST ... 23
3. SCHEMATIC DIAGRAM ................. 7 6.2 ELECTRICAL PARTS LIST............ 24
4. P.C. BOARDS CONNECTION DIAGRAM ..... 1 6.3 SCHEMATIC DIAGRAM ........... --- 25
5. P.C.B’s PARTS LIST .................005 19 6.4 P.C. BOARD PATTERN ...........--- 27
TOPANEL FACILITIES gas acecisyyt chosotnd 29
SUSPECIFICATIONS .h.n's da <a 2oeu dsia.a any wipers
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. P.O. Box 1760, Long Beach, California 90801 U.S.A.
PIONEER ELECTRONICS OF CANADA, INC. 505 Cochrane Drive, Markham, Ontario L3R 8E3 Canada
PIONEER ELECTRONIC [EUROPE] N.V. Keetberglaan 1, 2740 Beveren, Belgium
PIONEER
ELECTRONICS
AUSTRALIA
PTY.
LTD.
178-184
Boundary
Road,
Braeside,
Victoria
3195,
Australia
TEL:
[03]
580-9911
©
PIONEER
ELECTRONIC
CORPORATION
1990
MA APR. 1990) Prired i

SA-1520, SA-1520S
This
service
manual
is
intended
for
qualified
service
technicians;
it
is
not
meant
for
the
casual
do-it-yourselfer.
Qualified
technicians
have
the
neces-
sary
test
equipment
and
tools,
and
have
been
trained
to
properly
and
safely
repair
complex
products
such
as
those
covered
by
this
manual.
Improperly
performed
repairs
can
adversely
affect
the
safety
and
reliability
of
the
product
and
may
void
the
warranty.
If
you
are
not
qualified
to
perform
the
repair
of
this
product
properly
and
safely,
you should
not
risk
trying
to do so and
refer
the
repair
to a
qualified
service
technician.
WARNING
Lead in solder used in this product is listed by the California Health and Welfare agency as
a known reproductive toxicant which may cause birth defects or other reproductive harm
(California Health & Safety Code, Section 25249.5).
When servicing or handling circuit boards and other components which contain lead in in
solder, avoid unprotected skin contact with the solder. Also, when soldering do not inhale
any smoke or fumes produced.
1. SAFETY INFORMATION
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground
(water pipe, conduit, etc.) by connecting a leakage
Current tester such as Simpson Model 229-2 or
equivalent between the earth ground and all exposed
metal parts of the appliance (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120V
AC 60Hz outlet and turn the AC power switch on. Any
Current measured must not exceed 0.5mA.
a Reading should
Leakage | N0t be above
current | 0-5mA
Test all
exposed metal
surfaces
2-wire cord
Also test with
plug reversed + Earth
(Using AC adapter ground
plug as required)
AC Leakage Test
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO-
TENTIAL SHOCK HAZARD AND MUST BE COR-
RECTED BEFORE RETURNING THE APPLIANCE TO
THE CUSTOMER.
2.PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appli-
ance have special safety related characteristics. These
are often not evident from visual inspection nor the
protection afforded by them necessarily can be ob-
tained by using replacement components rated for vol-
tage, wattage, etc. Replacement parts which have
these special safety characteristics are identified in
this Service Manual.
Electrical components having such features are
identified by marking with a A on the schematics and
on the parts list in this Service Manual.
The use of a Substitute replacement component which
dose not have the same safety characteristics as the
PIONEER recommended replacement one, shown in
the parts list in this Service Manual, may create shock,
fire, or other hazards.
Product Safety is continuously under review and
new instructions are issued from time to time. For
the latest information, always consult the current
PIONEER Service Manual. A subscription to, or ad-
ditional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.
ae

2.
EXPLODED
VIEW,
PACKING
AND
PARTS
LIST
NOTES:
e Parts without part number cannot be supplied.
@ The f, mark found on some component parts indicates the importance of the
safety factor of the part. Therefore, when replacing, be sure to use parts of identical
designation.
A
e Parts marked by “ © ” are not always kept in stock. Their delivery time may be :
longer than usual or they may be unavailable.
Parts List
Mark No. Part No. Description Mark No. Part No. Description
A Seanaee Tanto ee fe a
A 3 2SC3281 Transistor (Q1) a Batt ee MAE RODE
A 4 28C3281 Transistor (Q2) oe so epue aad
A
:
45
IC
assy
5 ACG1003 Capacitor (C1.0,01/AC125V) 46 Connector assy
A 6 ATS1267 Power transformer 47 AW2Z2805 input assy
A 7 AKP-515 AC socket 3-P 48 SP SW assy
A 8 AEK-122 Fuse (2A) (FU3) 49 AWz2947 AF assy
A 9 AEK-122 Fuse (2A) (FU4) BOe gedit tales hd che Se) ian
A 10 AEK-309 Fuse (6. 3A) (FU1) 51 AWZ2807 Control assy B
A 11 _BDG1012 AC power cord 52 AWZ2808 VOL assy
12 AEC-510 Nyton rivet 53 LED assy
13 AEC-784 Leg assembly 54 Remote assy
14 AEE1014 Sheet 55 VSP SW assy
15 ABA-115 Screw 56 Terminal! screw
16 ABA-258 Screw 57 Plug
17 ABA1011 Screw 58 Chassis ‘nmin
18 ABA1053 Screw 59 Rear panel
19 BBT30PO80FMC Screw 60 Bottom plate
20 BBT30PO80FZK Screw 61 Heat sink
21 BBZ26PO80FMC Screw 62 PCB holder
22 BBZ30PO60FZK Screw 63 Transformer frame
23 BBZ30PO80FZK Screw 64 Heat sink holder
24 NK9SOFUC Nut 65 Heat sink holder
25 AMB1624 Front panel assy 66 Nylon binder
C
26 AAK1443 Lens 67 Pin grommet
27 AAK1918 Panel A 68 PCB spacer
28 AAK1919 Panel B 69 Clamper
29 AAK1920 Acrylic Pane! 70 Jumper plug
30 AAK1921 Indicator lens OUi ee ee cra ee nae thats des fe
31 AAB1098 Rotary knob (BALANCE) Te eet a oe eas
32 AABI142 Rotary knob assy (VOLUME) 73 Name plate
33. = AAD1535 Power knob (POWER) 74 Knob (plastic) =
34 AAD1609 Button (muting) DO i PR Ss at aetecBearec oes’ Pina atd
35 AAD1762 Knob (function) 76 Warranty card
36 AAD1763 Push knob (SPEAKERS) 77 Battery
37 ARB1244 Operating instructions
38 ARD1012 Operating instructiions
(for SA-1520 type, CU-SA007)
ARD1013 Operating instructions
(for SA-1520S type, CU-AV007)
D
39 AXD1142 Remote control unit
(CU-SA007)
40 AHA1239 Pad
41 AHD1849 Packing case (for SA-1520 type)
AHD1850 Packing case
(for SA-1520S type)

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708
:
28C2458
2~
705,
AE
aa
rape
Wea
o
GIOIM1O3
=
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MUTING
bo
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ie
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ae
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(a
[oa
|
120
rnc
of 84
_____-__]
iP
220
(>
ne
ara
2
7
R304
ren,
R308
7S)
R302
150
06
150
{
Q221
281048
id
a
aa
R239
47
a
eh
pe
257
21-750
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¢:
.
me
i
ouT
OFF
Quy)
OON
R309
[CT
exo
10K
oF
ROUT
RIN
2
to}
es
~
6258
2/5
ati
To
VSP
Q222, 223 : 2Sc1740S
259
J 0.047/25

AF
ASS'Y (AWZ2947)
10
At tror
16501: REGULATOR Power
TRANSFORMER
“psc
15 ad
$4 +5.6V - 1501 }-—— = ——ae EE iz ad
Roz
8503
e
Se
82 (/2w) woo 4 0502 YT pS04
+. | : eis ‘ Ce
by : He
2 R505 a 1 RISO! “ 1 0.0
| Soho Re os 22k LPOWER ON/OFF RELAY] 1128 AC POWER
POWER
Wp
<2
ASR-512
|
BOGIOIZ
R504 0501
18k 2 as fos SWITCHED UNSWITCHED
A TOTAL 1OOW MAX, TOTAL 100W MAX
+ power power + FUT 63)
63A.N25V
AFK-309 \
——— HS)
Ic ASS'Y
2 4 REMOTE Set A
(C502 = MSF 78121, A ec porn 3a
0 IC503 : REGULATOR / jh A
e512,
513
WW
PC
7aMial
aaa
Sere
csi
osos_
£507
US.
+12V, Ul 2H + Fus
A A
2200/25
esos
L
2az25y
4 12v ar AEK;
Zt our [6802 fin Rsn om
10 (1/2w) A A a a be
+
. : ' th 4 -20v as 2as25v
EX, REMOTE CONTROL C502 REGULATOR C56 _sAENSIee _
INPUT 47/16
ES é
24 eaapacee 5! ii) freee nen FLAS
ae CONNECTOR ASS'Y ec i OF a
af ices Avarsiee7
:
a
|
R509
+69V(+57V)
POWER
AWZ1851 “iby ZS a oe TRANSFORMER
fi
ek
J108.
Qs02
6206780
y
NC
ACI
[]
I
REMOCON REMOCON OUT oO I REMOTE fats I. ~
Ac bio ‘AC GND 3]
+5.6V 23.8¥ lof 1 ~ +5.6v A\ cs08 +
+2v lol iz ‘8200/80 A
av oO 0506
TUNER Lch wo 506
TUNER Leh ° a cee 0.027/250
pa GNO. lolz = 69V(- 571) 2
TUNER Reh ts] Qt. 2 : 28C3281 0301, 302 + 1SS252
TUNER
Ren
aa
Q3.4
+
2SA1302
305,
306
401~404
+ Q301~304 + 2SA970 406, 505
0305, 306 + 28C2240 0405 > HZS6BIL
401, 402
D303, 304 + HZS48LL
808 0307. 308 : 28C2705P 307, 308
Q309, 310 2SC2603 0407. 408 + RO2.7ESBI
7 Q3n, 312 2SC2238 0501~504,: S5566
2x1037 1C202, 204 : NJM45S8DXP 0313, 314 2SA968 BOTL5I0
C237 1c202 Q403, 404, 50! : 25C2458
we 2.2750 a 0506 » 05SB20F
i Le Fon] yd 0405 > 25am ost : RDIZESBI
Bed Se oa 0406 2scie4s OUTPUT ASS'Y
a 1 fo] ev 0502 : 288660
2 [mute JI03, JI03,
R257 , °
vRai6-) 100k ‘ 3 aan ae REMOTE} = ‘ fo] fo} fe nee
weowthay [+ [ole oor) éToI 0
S239 1098 a a EO A To =i bel Rea OIE
240 t00p 8 |o[rr our
vR216-2 7 [op ev
1OOK(AS) posg (oj
7 1OOk
280 Q405. 406 : RELAY DRIVE
1k | PROTECT >——--—- = ak PROTECT
ea
3
220
+
*12V
12V
RY401:
ASR-N2
22750 ic202 é : 3 t mar
QIN4, 3010314 : POWER AMP Bate Rar? aes
c204 ‘R21 280 Sy 2k (tw) 2K IW) a aig [Fea y aco
me 625! 22/50 ass “a R305, 15k (+30. R398, 5.6K A\ran 100 £80 T0406 os
i co + =
R295 C26. Paine 1 fo] MUTE if 6305 R307 100p/500 $ R343 Rae Q403
220 2209 + 2] oft our 47D 10k R319 R35 asea C321 #47 “Nal 18k
vrai6-
x
R297
301
Sik
S5ik
R333
7
47k
r--©
pat
VR216-3
c2637
7
R293
EPPS
F
Sox
Lefofe
Ja)
10728
9508
20
CP)
ad)
|
aoe
220p| | 100x jo} e-— REAR yt, (e) 301 + Sy YY | 470/6.3
C262 R294 [aw
vaaie-4220°L.
§
100K
C256
3
0K
[e|o[
Rou
}
ee
asi7
S300
|
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FER)
sory
30"
Lf}
=> ‘ To (°} [e303 ft Vk S789 0309 Q403, 404: OC DET
R296 ++. OOp Ic309 4 R339 fel at ‘|
220 220, C284 1500p eo Raz6 | 0303 220 +3! - 5 L4or
san ae * sto 560 it 0.47 pH SP. SW ASS'Y
co ewe if 1C204__-Rase_220 107 =v Te Bl week a ne
1C202, 204 : FLAT AMP cms si Se "er | Fe ae | ses, Ana,
o 25/500 chip Iw S40M1/2) : SPEAKER A uy auxys
[Ta fol | 0307® ais rae oe S401(2/2): SPEAKER B
; : [sev Coens 0307
sP_SW_ASS'Y ry alt Ey Ce) LA |
eee ao maaae RET PSL 1 99
0217~220
:
28¢2878
o
asi
Lap
226
403,
- pve Td Ba AAS G2 R337 C319 3 R341 fre a tee
Q216 ono | [a] 47 100p/500 F4
2SA1048 © sais ee a
VAR 3
2 So ein Rae 100388 FB og A, v agoe
22k 100 R332 ft (id 1 0404 18k we C404,
(i ae ee (CP 7 K 0402 | :
308 Sy Y &) 0402 C406
4 ‘B08: Boge + 0.082
R402
ae po ETT AL a 228 | iat
Rao
. ae 77 402 iou/ew)
— +e 4 Reh
aa . L402 PHONES.
c314 een ae 7
Sik Hare ya anil
R318 4 0401. 402 : OVER LOAD DET.
In302 15k C316
Vk 6p/500
e30e [Bie ? '
10725 0304 “R320 Sasis beers os L.3
306 R308 Stk Sik A 7k 322 3 R342
‘47D 10k 100p/500 3 47
—< + Wy + o--
R306 15k R336 5.6K
To VSP-333
c259
pene
10
11
11
12
NOTE:
1. RESISTORS:
Indicated in 2, 1/8W & 1/4W, +5% tolerance unless otherwise
noted k; kQ, M; MQ, (F); +1%, (G); +2%, (K); £10%, (M);
+20% tolerance
2. CAPACITORS:
Indicated in capacity (uF)/voltage (V) unless otherwise noted
p; pF. Indication without voltage is 50V except electrolytic
capacitor.
3. VOLTAGE, CURRENT:
): DC voltage (V) at no input signal
Value in ( ) is DC voltage at rated power.
mA; DC current at no input signal
4. OTHERS:
> ; Signal route.
@ : Adjusting point.
The A mark found on some component parts indicates the
importance of the safety factor of the part. Therefore, when
replacing, be sure to use parts of identical designation.
* marked capacitors and resistors have parts numbers,
The underlined indicates the switch position.
This is the basic schematic diagram, but the actual circuit may
vary due to improvements in design.
5, SWITCHES:
$201:
$601: TAPE
$602: STANDBY ON
$603: EQUALIZER ON/OFF
$604: PHONO
S605: TUNER
S606: VIDEO/AUX
$607: MUTING
$608: CD
$401: SPEAKERS A,B ON/OFF
12

Sr
|
1
|
2
I
3
|
4
|
s
i
6
|
4.
P.C.
BOARDS
CONNECTION
DIAGRAM
AF
ASS
Y
(AWZ2947)
OUTPUT
ASS'Y
a402
312
a404
0310
0314
Q406
Q405
Q403
0401
IC503
Q502
Ic501
Q313
Q501
Q309
IC101
Q103
aQ102
'cwo3
ic1io2
qiot
A
>)
ena
ON
ee
nee
TE
a
:
i
Ld
|
a
eee
j
Ic
A
enemy
€
|
i
|
6
B
CONNECTOR
ASS’Y
EE
Q201
Q601Q:
5
A
NN:
ae
wh
POWER
n
TRANSFORMER
Ma
Hees
P
ATS1267
fo
|
|
|
lal
|
|
:
: .
4
SP,
SW
ASS’Y
|
FUL
6.
3A-125V
|
|
wit
|
|
Sey
Gor
ae
A
ee
ao
“oe
|
|
iu
[
|
FOH
CONTINUED
¢
|
)
cee
ce,
|
as
AGAINST
FRE
ee
REACAPEMENT
Fuses
SHOULD
BE
OF
SHE
SaNe_TYPE.
AND
RATINGS
ti
j
Peron
ONUY-POUR_LES
PRECAUTIONS
CONT{NUELLES
CONTRE
L*INCENDIE.
LES
FUSIBLES
:
Pace
A
REMPLACER
DOIVENT
ETRE
LES
MEMES
TYPES
ETVALEURS
NOMINALS
UN
GUEMENT,
|
Bebe
.
}
i
“RED.
:
|
a8
4.
AC
POWER
CORD
BDG1012
}
|
y
|
|
o1
0.01/125
/\ AC120V 60Hz

7 Co B=) —1 © 7 Bt] ol
INPUT ASS‘Y
(AWZ2805)
NOTE
1. This P.C.B connection dlagram Is viewed from the parts mounted side. A
2. The parts which have been mounted on the board can be replaced with those shown
with the corresponding wiring symbols listed in the following Table.
P.C.B. pattern diagram indication Corresponding part symbol
Transistor
Ic ASS’'Y
Radiator type
transistor
a
,
(Awz2808)
ae
css
6 \ Capacitor
\ J (Polarity)
4 csi8 § Capacitor
(Non-polarity)
Ret
R+t Rte
Others
FHON 7 AUX cD P.C.B. pattern diagram Indication
NECTOR
ASS'Y
le
Ce
Q307 Q303 4301 ri
000 0
ae eee ee eee
v
CONTROL
ASS’Y
(AWZ2807)
ee
VR Varlable resistor or |
Q213 IC703 Ic705 Q709 Semi-tixed resistor
Q604 Q2i2 Q707 Q2140702 Q703 1C704 Q71 Q705 Q222
Q201
60102030602
Q205
IC60!
Q207 Q603
Q209
Q2Il
Q606
Q215
Ic701
IC702 IC203
Q704
Q605
Q710
Ic201
Q202
Q204
0708 0206 Q208
Q221_a210
Q223
3.
The
capactor
terminal
marked
with
©
(double
circles)
shows
negatine
tarmland.
4. The diode terminal marked with © (double circles) shows cathode side.
5. The transistor terminal to which E is affixed shows the emitter.
POWER IND ae
Q220 Q219 Q217 Q26
Q218
VSP SW ASS'Y
LED ASS’Y
14

POSa
r-Ae
.OSer-Ae
rr
Y‘22A TUT!
{(dO8SSWA)
Ye2A 3
eo
Y‘2e2A IOV
-
-
evi
tg
808SSWA
This
P.C.
B.
connection
diagram
is
viewed
from
the
foil
side.
(80
)
J+A J+A I+A
ao XUA\Y — PAOHS
\
Y‘eeA AOTIAUM(
10€O0 E0EO Oto [[oooco e000
SOED OED B0ED e0eO BOOED EO
(YO8SSSWA) Y‘eeA JOATUOD
e0voO @oryol e0voI Eso
ssso
@0TO
NTO
HOTS!
e0TO
sovosrso
TOTO
stso
bOSO
Esso
Orso
ISSO
80SO0
380SO
B8OTO
bOSO
soso
tosol
felAga}
2030
AOTO
eé0Sol
sovol
foyvol
aso
30300
itso
eOSO
E030
Toso
toadi
20SO Soad
E—osO10ag
=r0so
aso vrsO efsO OSSO
8tso
Y'eeA We dev
Y‘e2eA ATOMAA
St | tt | or | e | 8 | X | 3
Y‘e2A 34
15

(YR@SSWA) Y 22A AA
MEO Oreo BOBO StEO soso Y‘2eA TUITUO
eof 1020 ErEO toear soco E0ed! TOAD =EORO @OhO BOSD
oro! soro E0to
10D Sra forol
sO
asaxazde| [=]
Y’e2A AOTIAUNOD
9 10380
foso
A
IT
AAWOF
- ASMAOA2NAAT
QO vasteTA
IAS
Y‘22A We Je
wml < eS 03UAITHO0 403
: he ® ae Wo lTaaTgad
2OMITAR QUA. 3OYT 2MA2 SAT 40.38 GJUOHe 230U7 WAAMSSA 143A ORASAH JAI] TOMIAOA
SSA 1aU3 23) TIGMAOMI' J SATHOD 2S. I3UMIPT MOD cAqITUAISAG 23.4 AUOT-¥ JHO
L__ THEMED IMU 2IAMIMOW 2AUZIAVTS 23071 2aMGM 23) SATS THAVI00 AIOA INGA A
Qui AaWwOs
ght Ol
ares
Sroroag GAOD ASWOFDA A\
AN
CF
A were Lense
ke
ast\to.0
>
em
GED
S
sHO@
VOSTOA
AY
TSanNdD0e OA A
A ATOM sae
| ; | : | " | i | ; |

5. P.C.B’S PARTS LIST
NOTES:
@ Parts without part number cannot be supplied.
@ Parts marked by "@®” are not always kept in stock. Their delivery time may be longer than usual or they may be unayailable.
@ The A mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when
replacing, be sure to use parts of identical designation.
SA-1520, SA-1520S
@ iWhen ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.1 then there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%, and
K=10%).
5600 SOX 10 [->5B ]orseoee
47kQ 47X10 B->4T3rcrreeeee
0.52 ORB atceserecccesones sensors
10 O]Ocrecrccrccesccarceveces
eoacccrccsssvccececoes
RDI /4PSUOGS
Wiseseeuecsweaes ROI/4¢Psooos
sincoaceu ooo RNPHOOOK
RS1PUOOR
Ex.2 When there are 3 effective digits (such as in high precision meta! film resistors).
5.62kQ 563X10 1>562] +++
Mark NO Description
OUTPUT ASS'Y
OTHERS
SPEAKER TERMINAL 8-P
JACK
IC ASSY
SEMICONDUCTORS
{C502
CAPACITORS
C512 ELECTROLYTIC CAPACIT
C513 ELECTR. CAPACITOR
CONNECTOR ASSY
OTHERS
SP SOCKET
INPUT ASSY (AWZ2805)
SEMICONDUCTORS
C101
{C102 E-SH IC
1103
Q101,102 TRANSISTOR
Q103 TRANSISTOR
CAPACITORS
C101, 102 ELECTR. CAPACITOR
C103, 104 CERAMIC CAPACITOR
C105, 106 ELECTR. CAPACITOR
C107, 108 CERAMIC CAPACITOR
C109, 110 ELECTR. CAPACITOR
Ci11,112 CERAMIC CAPACITOR
C113, 114 CERAMIC CAPACITOR
0115-118 ELECTR. CAPACITOR
C119,120 CERAMIC CAPACITOR
C121,122 ELECTR. CAPACITOR
be ascorescccooeccorres
Part NO
AKE~111
AKN-207
MOF7812L
CEHAQLOOM25
CEHAQO10N50
AKP1014
NJM4558DXP
TC9163N
NJM4558DXP
2802878
2SA1048
CEAS 100425
CKMYB391K50
CEAS470H16
CCMSL101J50
CEAS470M16
CKCYB222K50
CKCYB822K50
CEASZR2M50
CKMYB221K50
CEAS100M25
RNI/4RO000F
Mark NO
Description
C125, 126 ELECTR. CAPACITOR
C127 CERAMIC CAPACITOR
C129, 130 CERAMIC CAPACITOR
RESISTORS
R101-114 CARBONFILM RESISTOR
A R115, 116 CARBON FILM RESISTOR
R117-120 CARBONFILM RESISTOR
R123-152 CARBONFILM RESISTOR
OTHERS
PHONO JACK 6-P
PHONO JACK 6-P
CN1
CN2
CN6
SP SW ASSY
SWITCHES
S401 PUSH SWITCH
RESISTORS
AV R419,420 METAL OXIDE RESISTOR
OTHERS
JACK (PHONES)
AF ASSY (AWZ2947)
SEMICONDUCTORS
1C501
1C503
Q301-304 TRANSISTOR
Q305,306 TRANSISTOR
Q307,308 TRANSISTOR
Q303,310 TRANSISTOR
Q311,312 TRANSISTOR
C123, 124 CERAMIC CAPACITOR
Part NO
CKCYX104M25
CEAS2R2K50
CKCYX 104425
CKMYB221K50
RD1/8PMO00J3
RD1/4PMFS831J
RD1/8PMOO00J
RD1/8PMOOQJ
AKB1007
AKB1024
KPE7
KPE13
KPES
SUL8LXYS
RS2LHF331J
AKN1002
K5278L56(A)
UPC78M12H
2SA970
2802240
2SC2705P
25C2603
2502238
193

SA-1520, SA-1520S
Mark NO Description Part NO Mark NO Description Part NO
Q313,314 TRANSISTOR 254968 R335, 336 CARBONFILM RESISTOR RD1/2PM562J
Q401,402 TRANSISTOR 2802240 A. -R837 CARBON FILM RESISTOR RD1/4PMF4R7J
Q403,404 TRANSISTOR 2802458 Ay -R838,339 FUSLIBLE RESISTOR RFA1/4PS221J
Q405 TRANSISTOR 2SA1115 A, -R3840-343 FUSLIBLE RESISTOR RFA1/4PS4R7J
Q406 TRANSISTOR 2801845 AV R344,345 RESISTOR (0.27, 54) ACNIO18
Q501 TRANSISTOR 25C2458 Ay R401, 402 CARBON FILM RESISTOR RD1/4PMF222J
Q502 TRANSISTOR 258560 R403, 404 CARBONFILM RESISTOR RD1/8PM183J
Av - R405, 406 METAL OXIDE RESISTOR RSIPMFIOOJ
D301,302
DIODE
188252
R407,
408
CARBONFILM
RESISTOR
RD1/8PM103J
D303,304
ZENER
DIODE
HZS4BLL
Av
R409,
410
CARBON
FILM
RESISTOR
RD1/2PMF100J
D305,306 DIODE 188252
0307,308
ZENER
DIODE
HZS4BLL
As
R41
FUSLIBLE RESISTOR
RFAI/4PSIO1J
0401-404
DIODE
18S252
R412-416
CARBONFILM
RESISTOR
RD1/8PMOOOJ
A, R417, 418 METAL OXIDE RESISTOR RSILMF122J
D405
ZENER
DIODE
HZS6BIL
Av
R421,422
CARBON
FILM
RESISTOR
RDI/4PMFIOIJS
D406 DIODE 1SS252 Avs R5OL RESISTOR(2.2M, 1/2W) ACN-208
D407,408 ZENER DIODE RD2. 7ESBI
D501-504 DIODE $5566 4s —- R502 CARBON FILM RESISTOR RD1/2PMFL820J
D505
DIODE
18S$252
A,
-
R503
CARBON
FILM
RESISTOR
RDI/4PMFIO1JS
R504,505 CARBONFILM RESISTOR RD1/8PMOOOJ
D506 DIODE D5SB20F Av -R506,507 FUSLIBLE RESISTOR RFA1/4PSOO0J
0507-510 DIODE $5568 4 —- R508 METAL OXIDE RESISTOR RS1PMF2R2J
D511 ZENER DIODE RDISESBI
R509 CARBON FILM RESISTER RD1/4PM152J
COIL & FILTER & TRANSFORMERS R510 CARBONFILM RESISTOR RD1/8PM822J
L401,402 COIL ATH1004 AV RSI] CARBON FILM RESISTOR RD1/2PMF 100J
R512 CARBON FILM RESISTOR RD1/4PM220J
A T5O1 POWER TRANSFORMER ATTLON
OTHERS
CAPAC | TORS SCREW PBZ3OPO60FMC
C301,302 ELECTR. CAPACITOR CEAS 100425 CN3 KPE7
C303,304 CERAMIC CAPACITOR CCHSL101J50 RY401 RELAY ASR-112
C305,306 CERAMIC CAPACITOR CCMSL470J50 A RY5O1 RELAY ASR~-512
C307,308 CERAMIC CAPACITOR = CKMYB102K50
C309,31M CERAMIC CAPACITOR CKMYB152K50
CONTROL ASSY (AWZ2807)
C311,312 CERAMIC CAPACITOR CCCSLO20C500
C313,314 ELECTR. CAPACITOR CEAS470M16 SEMICONDUCTORS
0315,316 CERAMIC CAPACITOR CCCSLO60D500 1€201 NJM4558DXP
C317,318 ELECTR. CAPACITOR CEAS470K50 10203 TA7T231S
C319-322 CERAMIC CAPACITOR CCCSL101K500 1C601 PDGO25-A
1€701-705 BA6144
C323 ELECTROLYTIC CAPACIT CEAS100M100
C401,402 ELECTR. CAPACITOR CEANPO10M50 Q201-210 TRANSISTOR 2SC1740SLN
C403-406 AUDIO FILM CAPACITOR CFTXA823J50 Q211,212 TRANSISTOR RN2201
C407 ELECTROLYTIC CAPACIT CEAS471M6 Q213,214 TRANSISTOR RN1201
€408 ELECTROLYTIC CAPACIT CEASBR8BK50 Q215 TRANSISTOR RN2201
Q221 TRANSISTOR 2541048
C409 ELECTR. CAPACITOR CEASO10M100
C501 CERAMIC CAPACITOR CKCYF 103250 Q222,223 TRANSISTOR 25017405
C502 ELECTR. CAPACITOR CEAS102M25 Q6O1 TRANSISTOR RNIZO1
€503 ELECTR. CAPACITOR CEAS101K10 Q602 TRANSISTOR 2802458
A, C505 CKA (0.01/AC400¥) ACG1003 Q603 TRANSISTOR RN2201
Q604 TRANSISTOR RN1203
C506 MYLOR FILM CAPACITOR CQMAZ73K250
C507,508 ELECTROLYTIC CAPACIT ACH1039 Q605 TRANSISTOR 2803377
C509 CERAMIC CAPACITOR CKCYF 103250 Q606 TRANSISTOR 25017408
C510 ELECTROLYTIC CAPACIT CEAS471M25 Q702-705 TRANSISTOR 2502458
C511 ELECTR. CAPACITOR CEAS222M25 Q707,708 TRANSISTOR 2802458
Q709 TRANSISTOR 2SA1515
€514-516 ELECTR. CAPACITOR CEAS470H16
Q710 TRANSISTOR RN2201
RES'tSTORS Q711 TRANSISTOR RN1203
R301-320 CARBON FILM RESISTOR RD1/4PMOOOJ
AV -R3821,322 FUSLIBLE RESISTOR RFA1/4PS101J D601 LEDCRED) AEL1O65
R323-328 CARBONFILM RESISTOR RD1/8PMOO0J D602-606 LED AEL1077
R329,330 CARBON FILM RESISTOR RD1/2PM472J D6038-616 DIODE 18252
Ax —-R831-334 CARBON FILM RESISTOR RD1/4PMF221J D617 ZENER DIODE RO33ESB
D619 LEDCRED) AEL1065
20

Mark
NO Description
D620 LEDCRED)
0622,623 DIODE
D626 DIODE
D701 LED
0702 DIODE
SWITCHES
S601-608 SWITCH
CAPACITORS
C201,202 CERAMIC CAPACITOR
C203, 204 ELECTROLYTIC CAPACIT
C205, 206 CERAMIC CAPACITOR
C207, 208 AUDIO FILM CAPACITOR
C209,210 CERAMIC CAPACITOR
C211,212 CERAMIC CAPACITOR
€213,214 CERAMIC CAPACITOR
€215,216 CERAMIC CAPACITOR
C217, 218 CERAMIC CAPACITOR
C219, 220 CERAMIC CAPACITOR
C221,222 CERAMIC CAPACITOR
C225 ELECTR. CAPACITOR
C227,228 CERAMIC CAPACITOR
€231,232 ELECTR. CAPACITOR
C233, 234 ELECTR. CAPACITOR
C235, 236 CERAMIC CAPACITOR
C245 ELECTR. CAPACITOR
C246 ELECTR.CAPACITOR
C247 ELECTR. CAPACITOR
€248 ELECTR. CAPACITOR
C249, 250 CERAMIC CAPACITOR
C60! CEA (47000/5, 5Y)
C602 ELECTR. CAPACITOR
C603-605 CERAMIC CAPACITOR
C606 ELECTR. CAPACITOR
€607 CERAMIC CAPACITOR
C623 ELECTR.CAPACITOR
C704,705 CERAMIC CAPACITOR
C706 ELECTR. CAPACITOR
C707, 708 CERAMIC CAPACITOR
C709 ELECTR. CAPACITOR
C710, 711 CERAMIC CAPACITOR
C712 ELECTR. CAPACITOR
C713,714 CERAMIC CAPACITOR
C715 ELECTR. CAPACITOR
C719,720 CERAMIC CAPACITOR
C721 ELECTR.CAPACITOR
C722 ELECTR. CAPACITOR
0724-727 ELECTR. CAPACITOR
C729 ELECTR.CAPACITOR
€730 ELECTR. CAPACITOR
C731 ELECTR. CAPACITOR
RESISTORS
A
A
YR201-210 YR
VR215
R201-240 CARBONFILM RESISTOR
R247-254 CARBONFILM RESISTOR
R255, 256 FUSLIBLE RESISTOR
R267, 268 CARBONFILM RESISTOR
R269 METAL OXIDE RESISTOR
Part NO
AEL1038
1$$252
18S252
AELIE11
$5566
ASG-703
CKMYB561K50
CEJARS3H50
CKDYX273M25
CFTXA104J50
CKDYX103M25
CKDYX273M25
CGMYX392H25
CKDYX103M25
CKMYB102K50
CGMYB272425
CKMYB391K50
CEAS 100425
CCMSL101J50
CEAS100N25
CEAS470M16
CCMSL101J50
CEAS101M16
CEAS100H25
CEAS470H25
CEAS 100425
CCMSL101J50
ACH 1037
CEAS101M10
CKCYX104K25
CEAS330M16
CKMYB102K50
CEJA2ZR2M50
CKCYX153K25
CEASR33M50
CGMYX682M25
CEASR33K50
CGMYB222M50
CEASR33M50
CKMYB821K50
CEASR83H50
CKCYX473K25
CEASR33M50
CEAS 100425
CEAS100425
CEAS2R2M50
CEAS470H16
CEAS 100425
ACU1025
ACS1052
RD1/8PMOO0J
RO1/8PMO00J
RFAL/4PS470J
RD1/8PMOOOJ
RSILKF820J
SA-1520, SA-1520S
Mark NO Description Part NO
A, R270 CARBON FILM RESISTOR RD1/2PMF330J
R271-284 CARBONFILM RESISTOR RD1/8PMOOOJ
R601-620 CARBONFILM RESISTOR RD1/8PMOO0J
R622 CARBONFILM RESISTOR RD1/8PM472J
A, R623 CARBON FILM RESISTOR RD1/2PMF470J
R624,625 CARBONFILM RESISTOR RD1/8PMOOOS
A, R626 CARBON FILM RESISTOR RD1/4PMF102J
R629-631 CARBONFILM RESISTOR RD1/8PMOOOJ
R633 CARBONFILM RESISTOR RD1/8PM222J
R705-720 CARBONFILM RESISTOR RD1/8PMOOOJ
R725-730 CARBONFILM RES{STOR RD1/8PHOOOJ
A, R734 CARBON FILM RESISTOR RD1L/2PMF680J
R735,736 CARBONFILM RESISTOR RD1/8PM103J
A, — R787 CARBON FILM RESISTOR RD1/2PMF680J
R738,739 CARBONFILM RESISTOR RD1/8PM103J
4, —- R740 CARBON FILM RESISTOR RD1/2PMF680J
R741,742 CARBONFILM RESISTOR RD1/8PH103J
A, R743 CARBON FILM RESISTOR RD1/2PMF680J
R747-750 CARBONFILM RESISTOR RD1/8PMOOOJ
As R751 FUSLIBLE RESISTOR RFA1/4PS470J
R752,753 CARBONFILM RESISTOR RD1/8PML03J
A. R754 CARBON FILM RESISTOR RD1/2PMF680J
OTHERS
2P HOUSING WIRE MATERIALS ADX1189
REMOTE RECEIVER UNIT AXX1010
X601 CERAMIC RESONATOR ASS1025
VOL ASSY (AWZ2808)
SEM! CONDUCTORS
1C202 NJM4558DXP
1C204 NJM4558DXP
cOo!IL & FILTER & TRANSFORMERS
L201,202 AXIAL INDUCTOR LAU1OOK
CAPACITORS
C237, 238 ELECTR. CAPACITOR CEJA2R2M50
€239,240 CERAMIC CAPACITOR CCMSL101J50
€241,242 ELECTR. CAPACITOR CEAS470M16
C243,244 CERAMIC CAPACITOR CKCYX473N25
€251,252 ELECTR.CAPACITOR CEJA2R2M50
(253,254 ELECTR.CAPACITOR CEAS2R2M50
(255,256 ELECTR.CAPACITOR CEAS470M16
(260-263 CERAMIC CAPACITOR CKMYB221K50
RESISTORS
VR216 VR ACX1037
R257-264 CARBONFILM RESISTOR RDI/8PMOO0J
A, R265,266 CARBON FILM RESISTOR RDI/4PMF221J
A, -R281,292 CARBON FILM RESISTOR RDI/4PMF221J
R293-298 CARBONFILM RESISTOR RD1/8PMOOQJ
LED ASSY
SEMICONDUCTORS
D621 LEDCRED) AEL1040
21

SA-1520, SA-1520S
Mark NO Description Part NO
REMOTE ASSY
SEM! CONDUCTORS
D624 ZENER DIODE RDG. 8ESB
D625 ZENER DIODE RDS. 1ESB
CAPACITORS
C624 CERAMIC CAPACITOR CKDYX103M25
RESISTORS
R632 CARBONFILM RESISTOR RD1/2PM471J
OTHERS
MINT JACK AKN1020
VSP SW ASSY
SEMICONDUCTORS
Q216 TRANSISTOR 2SA1048
Q217-220 TRANSISTOR 2802878
SWITCHES
$201 SLIDE SWITCH ASH1009
CAPACITORS
0257,258 ELECTR.CAPACITOR CEAS2R2M50
C259 CERAMIC CAPACITOR CKCYX473M25
RESISTORS
R300-310 CARBONFILM RESISTOR RD!/8PMOOQJ
OTHERS
CN? KPES
CN8 KPE6
22

6. REMOTE CONTROL UNIT (AXD1143) (FOR SA-1520S)
6.1 EXPLODED VIEWS AND PARTS LIST
NOTES:
© Parts without part number cannot be supplied.
e The A mark found on some component parts indicates the importance of the safety
factor of the part. Therefore, when replacing, be sure to use parts of identical designa-
tion.
© Parts marked by “®” are not always kept in stock. Their delivery time may be longer
than usual or they may be unavailable.
Parts List of Exterior
Mark No. Parts No. Description
1 AZA1968 Case (A)
2 AZA1969 Case (B)
3 AZA1970 Battery cover
4 AZA1139 Filter
5 AZA1242 Name plate
6 AZA1142 Knob (A}(SR
RECALL/USE/LEARN}
7 AZA1143 Knob (BAUDIO/VIDEO)
8 AZA1144 REMOTE POWER (SW1(A)}
9 AZA1177 REMOTE POWER (SW1(B)})
10 AZA1243 Rubber sheet
11 AZA1146 Screw
12 AZA1152 Sheet
13 AZB1268 Electrode spring
14 AZB1269 Electrode spring
15 AZB1270 Electrode spring
101 P.C.Board
102 Lavel
23

6.2 ELECTRICAL PARTS LIST
NOTES:
© Parts without part number cannot be supplied.
©
Parts:
marked
by
“®”
are
not
always
kept
in
stock.
Their
delivery
time
may
be
longer
than
usual
or
they
may
be
unavail-
able.
©
The
A
mark
found
on
some
component
parts
indicates
the
importance
of
the
safety
factor
of
the
part.
Therefore,
when
replacing,
be sure
to use
parts
of identical
designation.
© When ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J =
5%, and K = 10%). .
5602 56 X 10! DOL. cescvneedeiiteseiens RDI4PSO @ OJ
47kQ 47 X 103 AIS cic avicweidtenchievtosh en RDI4APSa OOS
0.52 RN2H@ @ OG) K
1Q OLO sic bh oibek ral oticlat den he ees RSIPQ HW K
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
S.62kQ S62 X IO! — SOQ veaceeccccccccseessseees RNI/ASR F
SEMICONDUCTORS RESISTORS
Mark
Symbol
&
Description
Part
No.
Mark
Symbol
&
Description
Part
No,
1C1
PDGO61—A
R2
(2.72)
AZC1219
IC2
AZC1232
R3
(100k)
AZC1210
IC3
AZC1231
R4
(6802)
AZC1217
R5 (8.2kg) AZC1214
at
AZC1229
R6
(4.7kQ)
AZC1215
a2 AZC1230
R7 (33k) AZC1211
D2
AZC1224
R8
(3.3MQ)
AZC1218
D4 AZC1225 RS (1kQ) AZC1216
D5 AZC1226 R10 (10k2) AZC1213
D6-D9,D11
AZC1228
R11
(22kQ)
AZC1212
D10 AZC1227
OTHER
SWITCHES
Mark
Symbol
&
Description
Part
No.
M :
pee
ee
bec
eee
X1
Ceramic
resonator
(2.0MHz)
AZC1223
$01,S06 Slide switch AZS1073
(AUDIO/VIDEO,SUR/AMP)
$03,504 Slide switch AZS1074
(SR RECALL/USE/LEARN)
SW1 (A) REMOTE POWER AZA1144
SW1 (B) REMOTE POWER AZS1177
CAPACITORS
Mark
Symbol
&
Description
Part
No.
C1,C2 (100nF/6V) AZC1253
C3 (10nF/16V) AZC1254
C4,C5
{100pF)
AZC1222
:
C6,C8—-C10 (0.01 uF) AZC1220
C7 (1000pF) AZC1221
24

eae
:
|
2
|
3
|
4
|
5
6.3
SCHEMATIC
DIAGRAM
1. RESISTORS :
Indicated in Q, 1/4W, 1/6W and 1/8W, + 5% tolerance
unless otherwise noted k:kQ, M:MQ, (F); +1%,
(G); +2%, (K);+10%, (M); 20% tolerance.
A
2.
CAPACITORS
:
A
Indicated
in
capacity (uF)
/voltage
(V)
unless
otherwise
noted
p:
pF, Indication
without
voltage
is
50V
except
electrolytic
capacitor.
3. OTHERS :
ES
ST
+
;
Signal
route.
@ : Adjusting point.
+]
C2
The
A,
mark
found
on
some
component
parts
indicates
the
70.100 importance of the safety factor of the part. Therefore, when
/6.3 replacing, be sura to use parts of identical designation.
% marked capacitors and resistors have parts numbers.
:
&
TO
+
swi
c9
BATTERY
a=
0.01
Noe
109
y)
\
This
is
the
basic
schematic
diagram,
but
the
actual
circuit
may
vary
dua
to
improvements
in
design.
C6 R4
0.01 680
4. SWITCHES : (The underlined indicates the switch position)
SW1: REMOTE POWER
LED DRIVER $01 : AUDIO/VIDEO
$03 Orr | OFF
rr OFF
SO5:M-CLR
SO6 : SUR/AMP
SOS : RESET B
C4 100p
I 7 R3
ae Y 00K
C5 1009
RMO/PY1 &
S1:AMP —
$2: TV POWER
$3: VCR
S4: SLEEP AMP/TV
SS : VZAUX
S6 : TAPE
S7: TUNER/VCRI1
S8 : PHONO/VCR2
$9 :CD/VDP
$13: PGM —
S14: DISC/DISPLAY —
14 /CHP/FR- TM
: DP! SEARC
<<
} AMP | 48
AMP O 47
2
yi 8 IC1 PKs 44
REMOTE 0 43
CONTROL IC
Q
5 on
CD/VOP
to)
> foe)
a) m
S64 (REC)
BR
=| mi
w—v—
Les}
Pape ze PN Po
>
©
a
S63
nN Oo
ZIV/VNCR TAPE (DECK Il) ZYCR
$28 :
__ C
S29: 44/TV
$30 : </VOP
S31: ME/VCR TAPE (DECK!) “VCR
$32: »/CH -
S33: PhP /CH + zeal
$34:CD+ 10
$35 1212/13 - 24/TV ANT
$36 : BAND/CICLE
$37: TV DISPLAY
$38 : CHANNEL +
S39 : CHANNEL —
$40: 1/13 —
S41: 2/14
g42: 3/15
$43:4/16
$44: 5/17
$45 : 6/18
S46:7/13
S47 : 8/720
$48: 9/721
$49 : 0/10/22
$50 : 11/23//MEMORY
S51: 12/24/CLEAR
$52: TV FUNCTION
$53:
TV
VOL
+
D
g54: TV VOL —
$55 : AUDIO SOURCE
S56 : VIDEO FUNCTION
$57 : SURROUND MODE
ES
ST
—
$58
:
MUTING
S61: MASTER VOLUME +
S62: MASTER VOLUME —
$63: SUR MODE
S64: DELAY
era
a
S62
S61
IC1 PDG1061-A
IC2 AZC1232
Ql AZC1229
Q2 AZC1230
|
TTT
1C3
AZC1231
1
I
I pe AZC1224
D D4 AZC1225
D6 — 9,11 AZC1228
AZC1227
AZC1226
YOR SUNS Van RE ATTRA OO | TETAS AES EEE GPT SRGANESRS ERNEST REIGN AIRS ae
NNnNNNAMNMYMNYWN NNUNN-==L
WNH—-OWOANAW
adrteyvan
26

6.4 P.C. BOARD PATTERN
BATTERY
1.5V x2
27

7. PANEL FACILITIES
SA-1520, SA-1520S
@) POWER (STANDBY/ON) switch
e The accessory remote control unit can also be used to operate
STANDBY/ON function of this switch.
ON eisciactane When set to the ON position, power is supplied and the
unit becomes operational.
STANDBY .. When set to STANDBY position, the main power flow is
cut and the unit is no longer fully operational. A minute
flow of power feeds the unit to maintain operation
readiness.
¢ When not using the unit for a long period, disconnect the wall socket.
* When the power is turned on, the protection circuitry operates and
during that time the volume indicator flashes.
@) PHONES jack
When using headphones, insert their plug into this jack.
(3) SPEAKERS A, B (ON m/OFF 9) switches
{ON} — Depressed position: Sound is heard from the speaker system.
[OFF] — Released position: No sound is heard from the speaker system.
NOTE:
When the speaker system is connected to only one speaker terminal
{A or B) and both A and B selector switches are ON, there will be no
sound.
Turn ON only the selector to which the speaker system is connected.
navee
(4) REMOTE SENSOR window
©) FUNCTION switches
Use to select playback source.
[CD] — Press when listening to compact disc playback with a CD player.
[PHONO] — Press when listening to record playback on a turntable.
[TUNER] — Press when listening to AM or FM broadcasts with a tuner.
[TAPE] — Press when listening to tape playback with a cassette deck.
[VIDEO/AUX] — Press when listening to programs from a component
connected to the VIDEO/AUX terminals.
Selection can also be performed with the accessory remote control unit.
29

SA-1520, SA-1520S
(©) FUNCTION indicators
These indicators light to show the setting of FUNCTION switches.
@)MUTING switch
Use to temporarily cut out all audio signals.
When this function is ON, sounds will be cut off (VOLUME indicator
will flash).
When turned OFF, the sound returns to its previous level. The muting
ON/OFF function can also be operated by the accessory remote control
unit.
VOLUME control/indicator
Use to adjust sound volume.
When operated by remote control, this control will rotate with the knob
indicator flashing.
Adjustment can also be performed with the accessory remote control
unit.
(8) BALANCE control
Should normally be left in the center position. Adjust balance if the sound
is louder from one of the speakers.|f the right side is louder, turn toward
the LEFT position, and if the left side is louder, turn toward the RIGHT
position.
GRAPHIC EQUALIZER controls
These controls can be used to emphasize or de-emphasize sounds in
the frequency bands 100 Hz, 330 Hz, 1 kHz, 3.3 kHz, and lO kHz, thus
allowing you to control tone quality. The center position of each control
is the normal (flat) setting. When raised above the center position, the
control frequency band is emphasized; when lowered, the band is de-
emphasized.
(1) EQUALIZER ON/OFF switch/indicators
When this switch is pressed, the GRAPHIC EQUALIZER control's
indicators turn on, and its functions become operative.
When pressed once again. the indicators are turned off. Use this switch
in the following manner:
[ON] : When using the equalizer to add sound compensation while
performing program sources, and playing back and/or recording
results.
[OFF] : When not using the equalizer, but playing back or recording
program sources without compensation.
NOTE:
Equalizer ON/OFF indication is provided by a light on the equalizer switch
itself on U.S. and Canadian models, or by control knob indicators on
other models.
30
(22) SPECTRUM ANALYZER
This display shows the condition of sound signals compensated with
the graphic equalizer controls.
(Because the level indicator is connected to the input side, the indication
does not change when the VOLUME control is turned.)
43) MULTI-ROOM indicator
This indicator is always lit, but if you connect an MR-100 optional Multi-
Room remote control unit, it will flash when the MR-100 is receiving
a remote control signal.
STANDBY/SLEEP indicator
¢ This indicator flashes when the accessory remote control unit is used
to turn SLEEP key. When SLEEP key is ON, the indicator will flash.
(Initially it will flash slowly, then gradually become faster.)
Sixty minutes after the sleep timer is turned ON, the power switch
will be turned to STANDBY automatically.
* This indicator lights when the accessory remote control unit or this
unit is used to turn POWER key.
(1) MIC jack
Connects to a six millimeter microphone plug.
48) MIC LEVEL control
Use to adjust microphone input level.
NOTE:
18) and (8) do not exist on U.S. and Canadian models.
This component features a built-in microcomputer which will recall
the last-set positions of the following switches for up to about
several days after the power cord is disconnected. As a result, when
the power is turned ON again, the previously set positions will be
recalled automatically:
* MUTING switch
e FUNCTION switch
e EQUALIZER ON/OFF switch
When the unit is not used for more than several days, the memorized
setting positions will be erased, and returned to the following
settings:
PTGS SATOH ss dos det acetate pet cniing rani coed) dea mye See OFF
* FUNCTION switches ..............
* EQUALIZER ON/OFF switch