Technics SA-290 User manual

ORDER NO. HAD8606550A2
Service Manual
Receiver Fa
CYUARTZ Synthesizer 7 ’ S A 990 0)
AM/FM Stereo Receiver — =
(S)...Silver Type
(K) (S) | [EGB]...-.R Germany.
¢ Please use this manual together with the service manual for model No. SA-290/SA-290L (original),
Order No. HAD8602344C8.
¢For parts lists, schematic diagram, printed circuit boards and exploded views, refer to the ones in
this Service Manual.
¢For other information, refer to both this Service Manual and the original Service Manual.
TECHNISCHE DATEN
(DIN 45 500)
@ VERSTARKERTEIL Ausgangsspannung
Aufnahmeausgang (REC OUT) 150 mV
Dauerton-Ausgangsleistung bei 1 kHz Kanalabweichung (250 Hz ~ 6300 Hz) +1 dB
beide Kandle ausgesteuert 2 < SOW (8 2) Ubersprechdampfung (1 kHz) 55 dB
Gesamtklirrfaktor Kopfh6rerpegel und -impedanz 470 mV/330 Q
halbe Nennleistung bei 1 kHz 0,02% (8 ) Lautsprecherimpedanz
Intermodulationsfaktor MAIN oder REMOTE 40~ 169
Nennleistung bei 60 Hz: 7 kHz = 4:1, nach SMPTE, 8 MAIN und REMOTE 80 ~ 160
0,5%
Leistungsbandbreite BM UKW-TUNERTEIL
beide Kandle ausgesteuert bei —3 dB 10 Hz ~ 40 kHz (8 2)
Dampfungsfaktor
20
(8
2)
Wellenbereich
87,50
~
108,00
MHz
Eingangsempfindlichkeit und -impedanz Eingangsempfindlichkeit
Phono 2,5 mMV/47 kQ S/R 30 dB 15 uv (75 Q)
CD/AUX,TAPE/EXT 150 mV/22 kQ S/R 26 dB 1,3 nV (75.9)
Maximale TA-Eingangsspannung (1 kHz, eff.) 150 mV S/R 20 dB 1,2 uV (75.Q)
Gerauschspannungsabstand
Nutzempfindlichkeit
nach
IHF
1,5
uV
(nach
IHF
’58,
75
Q)
Nennleistung
(8
[)
Stereoumschaltschwelle
bei
46
dB
nach
IHF
22
uV/75
9
Phono 70 dB (nach IHF, A: 72 dB) Gesamtklirrtaktor
CD/AUX, TAPE/EXT 88 dB (nach IHF, A: 95 dB) Mono 0.15%
Frequenzgang
Stereo
0,3%
Phono RIAA-Standardkurve, Gerduschabstand
+0,8 dB (30 Hz ~ 15 kHz) Mono 60 dB (75 dB nach IHF)
CD/AUX,
TAPE/EXT
10
Hz
~
70
kHz(
~3
dB)
Stereo
58
dB
(71
dB
nach
IHF)
Klangregler
Frequenzgang
20
Hz
~
15
kHz
(+1
dB
~
—2
dB)
BaBregler
(BASS)
50
Hz,
+10
dB
~—-10
dB
Trennschiarfe
bei
Stérsender
+400
kHz,
65
dB
HGhenregler
(TREBLE)
20
KHz,
+10
dB
~—-10
dB
Einfangverhditnis
1,.0dB
Gehorrichtige Lautstarkekorrektur (Loudness) Spiegelfrequenz-Dampfung bei 98 MHz 40 dB
(bei
—30
dB
Ausgangsleistung)
50
Hz,
+9
dB
ZF-Dampfung
bei
98
MHz
70
dB
Matsushita Electric Trading Co., Ltd.
P.O. Box 288, Central Osaka Japan
‘Technics

Ansprechdampfung auf Nebenfrequenzen bei 98 MHz 70dB
MW-Unterdriickung 50 dB
Ubersprechdampfung
1 kHz 40 dB
10 kHz 30 dB
Tragerrest
19 kHz —30.dB (=35 dB nach IHF)
38 kHz —45 dB (—50 dB nach IHF)
Kanalabweichung (250 Hz ~ 6300 Hz) 1,59 dB
Begrenzereinsatz 1,2 uv
Bandbreite
ZF-Verstarker 180 kHz
UKW-Demodulator 1000 kHz
AntennenanschluB 75 Q (unsymmetrisch)
@ MW-TUNERTEIL
522 ~ 1611 kHz (9-kHz-Schritte)
530 ~ 1620 kHz (10-kHz-Schritte)
Wellenbereiche
M@ REPLACEMENT PARTS LIST
Notes: e Part numbers are indicated on most mechanical parts.
Please use this part number for parts order.
e important safety notice.
Components identified by A\ mark have special charac-
teristics important for safety.
When replacing any of these components, use only
manufacturer's specified parts.
Prerne [Pare oescmion
CABINET and CHASSIS PARTS
SWV66 LED Ass’y (D206)
[aerne [rare owsrmion
CABINET and CHASSIS PARTS
Tone Spacer {1)
Tone Spacer (1)
SHR5310—1
SHR5310
SKCA290— SG Cabinet Ass'y (1)
SHR415
SHE185
$BC315—4T
SBC315—7
Nyion Pin
P.C.B. Holder
Loudness Knob
Loudness Knob
© SBDA290—SH Volume Knob Ass’y (1)
® SBDA290—KM Volume Knob Ass’y (1)
©) SGYA290-—SH Front Panel Ass’y (1)
® SGYA290—KX Front Panel Ass’y (1)
© SGU483V instruction Plate (4)
® SGU483! Instruction Plate (t}
© $BC571—T Speaker Button (2)
® S$BC571—10T Speaker Button (2)
© SBC6E6E6 Power Button (1)
® SBC666—3 Power Button (1)
6 SHG6380 Rubber (1)
7 SGX7809 Lamp Holder Plate = {1)
8 SJT347 Fuse Holder (2)
9 SHR9789 Volume Hoider (1)
10 SUX39 Shaft (1)
11 SUW2974 Pilate (3)
12 SMC6395 — 1 Shield Plate (2)
13 SHR9771-—2 LCD Holder (1)
14 SDU249— 1 LCD Filter (1)
15 SMP395 — 2 Lamp Case (1)
17 SUB251 Connection Rod (4)
18 SKUA290—KG Bottom Board Ass’y (1)
C 18-1 ( SKL293 Foot (4)
SKCA290—KG
$BD97
SBD97—3
SUW2975
SUW2928 — 2
SJF4818
SJF3059— 14N
SJF4441—5
SGP6708A
SMC1200
SMX891
SHR127
SFDAB31E01
SHR9748
SJJ126B
Swvs0
SBC718
SBC718—1
SHR9764—6
SHR9764 —7
SHP669 — 1
SHR9794
SJE87—1
$JT30543 — V
$JT30743—V
Cabinet Ass’y (1)
Tone Selector Knob (3)
Tone Selector Knob (3)
Plate
Plate
Speaker Terminal
Input Terminal
Antenna Terminal!
Rear Panel
Shield Plate
Sheet
Bushing, AC Cord
AC Cord
P.C.B. Holder
Headphone
LED Ass’y
(D551~-560)
Selector Button (4)
Selector Button (4)
Spacer (3)
Spacer (3)
Spacer (1)
Speaker (1}
Cord, FM Antenna = (1)
Socket (5P) (1)
Socket (7 P) (1)
Eingangsempfindlichkeit (S/R 20 dB) 20 BV, 330 uV/m
Trennscharfe 55 dB
Spiegelfrequenz-Dampfung 40 dB
ZF-Dampfung 55 dB
@ ALLGEMEINE DATEN
Leistungsaufnahme 270 W
Netzspannung
Fur Kontinentaleuropa Wechselstrom 50 Hz/60 Hz, 220V
Abmessungen (B<HxXT) 430 X 97 k 243 mm
Gewicht 5,3 kg
(Die technischen Daten kénnen infolge von Verbesserungen
ohne Ankiindigung geandert werden.)
e The parenthesized numbers in the column of description
stand for the quantity per set.
e (©-marked parts are used for silver type only.
(«)-marked parts are used for black type only.
@ Part other than ©- and ®-marked are used for both black
and silver types.
[aetne [penne] beeton
SCREWS
XTB3+8G Tapping, ©3x8 (9)
XTBS3+8JFZ1 Tapping, ©3x8 (24)
XTW3+ 8T Tapping, ©3x8 (7)
XTBS3+ 16F 1 Tapping, (3 x 16 (2)
SNE2095 — 4 Cabinet (2)
SNE2095—5 Cabinet (2)
Transistor
Power IC
SNE2117-1
SNE2118
XTBS3+8FFZ1 Tapping, ©®3x8
SQF 12685 Instruction Book
SSA270 FM Antenna
SSA902—5 Loop Antenna
SMA231 Holder
SMA233—1 Holder
XTN3-+ 10AFZ Screw, ©3 x10
SPP719 Polyethylene Bag
SPS4432—3 Pad, Left Side
SPS4433~—3 Pad, Right Side
SPS4670 Pad, Front
SPS4693 Pad, Upper
$PG5530 Carton Box
©) SJK1414 Label (Silver Only)

1
mM EXPLODED VIEWS

[rate [Penne [vane
m@ REPLACEMENT PARTS LIST [Tren] rere [rome
R725 ERDS1FJ681 680
R707 ZA. ERDS1FJ152
Notes:
©
Part
numbers
are
indicated
on
most
mechanical
parts.
e
The
unit
of
resistance
is
OHM
(Q).
se
ag
ie
Selly
ean
de
aie
al
alae
ath
Bs
Sis
ates
oy
ogee
Dee
ule
Dall
REMmDar
1Or
pelts
ClGer,
K=
10000,
M=1000kQ
—
R561,562
ERDS2TJ224
220K
| |
625,626
—-
ERDS1FJ100
R709
ERDS2TJ102
R903
ERDS2TJ561
560
e
Important
safety
notice.
e
The
unit
of
capacitance
is
MICROFARAD
(uF).
R563,
564
ERDS2TJ333
33K
| |
R627,
628
ERDS1FJ331
R710
ERDS2TJ272
R906
ERDS2TJ332
3.3K
Components
identified
by
/\
mark
have
special
charac-
P=106uF.
R565,
566
ERDS2TJ153
15K
R630
ERD25FJ221
R711
ERDS2TJ222
R907
ERDS2TJ473
47K
R908 ERDS2TJ103 10K
R909 ERDS2TJ562 5.6K
R910 ERDS2TJ681 680
R912 ERDS2TJ102 1K
ERDS2TJ221
R633 ERDS2TJ153
R567, 568 ERDS2TJ472 4.7K
R569, 570 ERDS2TJ271 270
R601, 602 ERDS2TJ102 1K
R603, 604 ERDS2TJ223 22K
R609, 610 ERDS2TJ223 22K
R712 ZA. ERDS1FJ561
teristics important for safety.
When replacing any of these components, use only
manufacturer’s specified parts.
R634 ERD25FJ151
R636 ERD25FJ1RO
R671, 672 ERDS2TJ561
R701, 702 ERX1ANJR22
R713 ERDS2TJ221
R714 Z\ ERD25FJ470
R715 ERDS2TJ223
R716 ERG2ANJ471
R611, 612 ERDS2TJ821 820 R703 ERD25FJ181 R719, 720 ERDS2TJ124 ERDS2TJ101
Numberin
m
Resistor
i
i
R613,
614
ERDS2TJ682
6.8K
| |
R704,
705
ERDS2TJ393
R721
ERDS2TJ153
u
g
Syste
of
Resist
Numbering
System
of
Capacitor
R615,
616
ERDS2TJ682
6.8K
|
|
R706
ERG2ANJ220
R722
ERDS2T473
Example Example !
ERD 25 F J 101 ECKD 1H 102 Z F
Type Wattage Shape Tolerance Value Type Voltage Value Tolerance Peculiarity
Type Voltage Peculiarity use Value Special use
INTEGRATED CIRCUITS
COILS VARIABLE CAPACITOR
Resistor
Type
Wattage
Voltage
IC1,
501
AN6558F
IC
L110
SLA4Z13—Z
Coil
CT201
ECRHA010A41__—Variable
Capacitor
Type
Telerakce 10201
AN7273A
IC
L115
ELEPH1R2MA
_—
Choke
Capacitor
ERD:
Carbon
so.
-4/4w
ld:
45%
ECEA
Tvpe
|
Other
1C301
AN7470
IC
L204
SLA2B1—1M
AM
Antenna
$1
‘10
.
yP
10551,
552
AN6882
IC
L205
SLO2B7—M
AM
OSC
COMPORNENT
COMBINATIONS
1601
SV13001
IC,
Power
L210,
211 ELEPH1ROMA
Choke
:
Electrolytic
OJ:
1H
:
50VDC
:
+0.25pF
10701
AN7072N
IC
L301
SLM1B1—P
LPF.
2301,
302
EXRP102K473T
0.001uF,
47k
-
Ceramic
1A:
1
:125VDC
-
45%
1C901
UPD1718G512_
IC
L302,
303
SLM5B2—1P
—LLP-F.
jf
L601,
602
SLQY07G—40
Choke
SWITCHES
-
Ceramic
1c:
>
£10%
TRANSISTORS
L701,
702
A.
SLOQX400—D
—
Choke
L901
RLQY25S5—0
Choke
$501~504
SSH498 Input
Selector
: Polyester 1E SF: : +80%, —20%
: Polypropylene :
Q205 2SC1685—QNC Transistor $601, 602 $SH2120 Speaker
Q206 2SA1175FE Transistor L902 ELEPK1R2MA Choke Selector
Q207 2SC2785F Transistor S603 SSH1159 Loudness
Q208, 209 2SA1175FE Transistor TRANSFORMERS Selector
@
CAPACITORS
Q210
2SC2785F
Transistor
S604
A
s8S164
Impedance
Q211, 212 2SC2787L Transistor SLI2B101—M Transformer Selector
|
RefNo.
|
PartNo.
|
Value
|
Q213,
214,
702
2SC2785F
Transistor
T202
SLI4B511—Z
FM
IFT
S701
Z\
$SSH1071
Power
Source
Q701 2SD12650 Transistor T203 SLI4B513—Z FM IFT $901~911, $$G13 Input Selector
C1, 2 ECEA1HU3R3 3.3 ECFTD183KXL C507, 508 ECEA1EU100 C701 ZA. ECKDKC103PF2 0.01 Q703 25C1384NC—R Transistor 1701 A. SLT5M469 Power 913~915
C3,
4
ECCD1H101K
100P
ECEA1HU2R2
C509,
510
ECCD1H680K
C702
ECQE1105KZ
1
Q704
2SA992E
Transistor
Transformer
=e
C5,
6
ECKD1H102KB
_—0.001
ECEA1HU4R7
C511
ECKD1H103ZF
C703,
704
ECETS1HV822U
8200
C7,
8
ECFTD223KXL
0.022
ECEA1CU100
C512
ECEA1CU330
C705
ECEA0JU470
47
Q705,
706
2SA1175FE
Transistor
CERAMIC
FILTERS
|
C9,
10
ECFTD682KXL
0.0068
ECEA1HU010
C513,
514
ECFTD332KXL
0.
C707
ECEA1HU470
47
Q707,
901,902
28C2785F
Transistor
C11,
12
ECEA1HU010
1
ECKD1H103ZF
C515,
516
ECFTD333KXL
0.
C708
ECEA1VU4R7
47
Q905
2SA1175FE
Transistor
SVFE107MS8—A
FM,
10.7MHz
C13,
14
ECEA0JU330
33
ECEA1CU100
C517,
518
ECFTD183KXL_
_O..
C709
ECEA1VU470
(Red)
RELAY
C51,
52
ECCD1H180K
18P
ECKD1H101K
C519,
520
ECFTD104KXL
11
|
c710
ECKD1H103ZF
CF201,
202
SVFE107MS8—D
FM,
10.65MHz
C53,
54
ECKD1H221KB
220P
ECKD1H223Z2F
_O..
C521,
522
ECQE1104KN
1
|o71
ECEA1AU101
=m
RibBoe
Sa
ceteris
va
ile:
RL701
SSY129
Relay
ECCD1H101K
100P
ECKD1H103ZF
C523,
524
ECKD1H331KB
C712,
713
ECKD1H103ZF
mo02
308
NEVES
ap
aie)
WQUID:
CRYSTAL
DISPLAY
ECCD1H101K
100P
ECKD1H223ZF
0.
C551,
552
ECEA1HKSR22
C714
ECKD1H103ZF
D204
LN846RP—C
Diode
CF203
SVFSFZ450F7L
AM,-450kHz
C119
ECKD1H103ZF
0.01
ECCD1H220K
C553,
554
ECEA1HKS2R2
C715
ECEA1EU101
D206
SLV31VC3
Diode
LCD
SALHLC9225—3
Frequency
C122
ECKD1H223ZF
0.022
ECEA1HU010
C555,
556
ECFTD822KXL
0.
C716
ECEA1CU471
D207
1SS254
Diode
CRYSTAL
Display
C151
ECCD1H330CC
-.33P
ECCD1H101K
C601,
602
ECEA1HN4R7S
7|
10718
ECEAQJU101
0209
MA4110M
Diode
C152
ECKD1H103ZF
_—-
0.01
ECEA1CU101
C603,
604
ECCD1H101K
C901
ECEA25M4R7R
mraaueey
nee
hens
LAMPS
C201
ECQM1H473JZ
_—-0.047
|_|
C304,
305
ECEA1HU3R3
3.3]
|
C605,
606
ECKD1H331KB
C902
ECKD1H103ZF
a
i
C202
ECCD1H120JCY
12P]
|
C306,
307
ECQM1H272JZ
0.0027]
|
C607,
608
ECEA1HU330
C906
ECCD1H470K
D551~560
SLV31VT3M
Diode
VARIABLE
RESISTORS
PL1
ZX
XAMR83S150A
—
Lamp
C203
ECQP1471JZ
470P
|
|
C310
ECQP1471UZ
470P
|
|
C609,
610
ECCD1H100KC
C907
ECCD1H100KC
D561~563
LN846RP
—C
Diode
PL2
ZX
XAMR78S150
—s
Lamp
C204
ECQP1391JZ
390P
|
|
C311
ECEA1HU010
1]
|
C611,
612
ECEA1HN3R3S
C908
EECF5R5U473
VR301
QVNB3A00B472
Variable
ECEA1HU3R3
3.3]
|
C312
ECFTD473KXL
0.047]
|
c615
ECEA1HN100S
C910
ECEA0JU471
D564
LN446YP—C
Diode
Resistor,
FM
FRONT
END
| D565, 566 MA29WA Diode 4.7kQ
ECKD1H103ZF
0.01
C313
ECEA1HU3R3
3.3
C617
ECEA1HU330
C913
ECKD1H103ZF
D567,
568
MA165
Diode
VR302
QVNB3A00B474
Variable
SNVFE306G19
FM
Front
End
C209
ECCD1H470K
47P|
|
C314
ECEA1HUR47
0.47]
|
C618
ECEA1JU220
C914
ECCD1H150KC
D701~704
AX
SVDS3V40
Rectifier
Resistor,
Pack
C211
ECKD1H223ZF
0.022
|_|
C315
ECKD1H103ZF
0.01}
|
C619,
620
ECKD1H473ZF
C915
ECEA1HU3R3
D705,
707~709
=1SS254
Diode
470kQ
C212
ECCD1HO80CC
BP}
|C331
ECEA1CU330
33]
|
C643
ECKD1H102ZF
C916
ECEA1HU010
D710
ZV
SVDSR1K2
Rectifier
VR501
EWAPBAX05B15__—-
Variable
C213
ECCD1H470K
47P
|
|
C333,
334
ECQM1H472JZ
0.0047]
|
C646,
647
ECKD1H221KB
C918
ECCD1H121K
D711
MA4062M
Diode
Resistor,
C214
ECEAQJU101
100
|
|
C407,
408
ECKD1H103ZF
—-
0.01
|_|
C651,
652
ECKD1H103ZF
c921
ECEA1CU221
D712
MA4160M
Diode
100
kQ2
(B)
C215
ECEA1HU4R7
4.7|
|
C501,
502
ECCD1H101K
100P
|
|
C653,
654
ECKD1H103ZF
C922
ECKD1H103ZF
0713,
714
MA4120—M
Diode
VR502
EWANF5X05G15_—-
Variable
C216
ECKD1H103ZF
0.01}
|
C503,
504
ECEA1HU3R3
3.3]
|
C661,
662
ECKD1H103ZF
C930
ECEA1HU010
D901
MA4110M
Diode
Resistor,
ECKD1H223ZF
0.022
C505,
506
ECCD1H390K
39P
C663,
664
ECKD1H103ZF
100
kQ
(G)
D902~913 1$S254 Diode VR503, 504 EWANAGX05C15_— Variable
Resistor,
100 kQ(C)
D915, 916 MA162A Diode
D920 1$S$254 Diode
@ RESISTORS
R211 ERDS2TJ101 R240 ERDS2TJ102 R331, 332 ERDS2TJ822
R212 ERDS2TJ561 R241 ERDS2TJ471 R333, 334 ERDS2TJ102
R213 ERDS2TJ151 R242 ERDS2TJ123 R501, 502 ERDS2TJ474
R214 ERDS2TJ471 R243 ERDS2TJ222 R503, 504 ERDS2TJ102
R215 ERDS2TJ223 R248 ERDS2TJ471 R505, 506 ERDS2TJ474
R216 ERDS2TJ563 R249 ERDS2TJ153 R507, 508 ERDS2TJ392
R217 ERDS2TJ471 R250 ERDS2TJ562 : R509, 510 ERDS2TJ821
R218 ERDS2TJ822 : R251 ERDS2TJ221 R511, 512 ERDS2TJ223
R219 ERDS2TJ104 R252 ERDS2TJ104 R513, 514 ERDS2TJ332
R220 ERDS2TJ153 R261 ERDS1FJ104 R515, 516 ERDS2TJ393
R1, 2 ERD10TLJ391U
R3, 4 ERD10TLJ224U
R5, 6 ERO1OMKG5622
R7,8 ERD10TLJ271U
R9, 10 ERD10TLJ680U
R11, 12 ERD10TLJ184U
R13, 14 ERD10TLJ123U
R15, 16 ERD10TLJ563U
R17, 18 ERD10TLJ102U
R51, 52 ERDS2TJ471
R221 ERDS2TJ122 : R262 ERDS2TJ103 R517, 518 ERDS2TJ393
R223 ERDS2TJ473 R263 ERDS2TJ123 R519, 520 ERDS2TJ222
| R224, 225 ERDS2TJ103 R301 ERDS2TJ221 R521, 522 ERDS2TJ183
R228 ERDS2TJ474 R304, 305 ERDS2TJ223 R523 ERDS2TJ331
R229 ERDS2TJ331 R307, 308 ERDS2TJ272 R551, 552 ERDS2TJ151
R230 ERDS2TJ824 R309, 310 ERDS2TJ562 R553, 554 ERDS2TJ121
R231 ERDS2TJ471 R313 ERDS2TJ153 R555, 556 ERDS2TJ271
R232, 233 ERDS2TJ273 R314 ERDS2TJ123 R557 ERDS2TJ821
R234, 235 ERDS2TJ104 R315 ERDS2TJ102 R557A ERDS2TJ272
R239 ERDS2TJ334 R317, 318 ERDS2TJ103 R558 ERDS2TJ681
R61, 62 ERDS2TJ102
R65, 66 ERDS2TJ102
R121 ERDS2TJ562
R131 ERDS2TJ151
R204. ERDS2TJ102
R205 ERDS2TJ104
R207 ERDS2TJ821
R208 ERDS2TJ563
R209 ERDS2TJ182
R210 ERDS2TJ121

_ Sar ee Oo Tae eR
cF20I
Q213
R233
__.____
______
___FM_FRONT
END
(SNVFE306G19)
ae
2SC2785F
27K
°
d
SWITCHING
|
FET
Q1
[ae
2SX193
2SC2668
C3/co!
AM
IFT
—
tao!
5
|
|
|
Coil
(fo.
=
as
gS
R308
C304
|
R2
22
|
|
0
2.7K
OV 3.3
Q2il, 212
2SC2787L
FM IF AMP
R307 C305:
2.7K 50V3.3 :
+4 :
TP201
N>pn
on
5 34*
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3507 LZ
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R301 220
Tee ine
0.01 GNol a 4 Signal | 1303,
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© D1-D3:1SV103
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l FM IF DET
| &AM CONV
|
|
|
| Q206,208,209 Q207, 210
a 2SAI175FE 2SC2785F
ee a ee a Pe Og ee SELECTOR SELECTOR
SWITCHING SWITCHING
Off-Set
Voltage
ha
D201 KvI260z wy = S0V3.3 1¢301
TP 101 | a ue g UPCIIGIC3
2
2
&
MPX.
or
AN7470
R334
1K
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ANTO
=
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@
MUTING
AM
LOOP ANT
R248 0207
Q205
2SC1I685
SWITCH (SIGNAL)
R555 R569
270 2
D513
0206
SLV3IVC3
MA4062H
Dp) PLL CONTROLLER
R55!
150
R251
220
DSI!
MA4062H
(L ch)
PHONO(O
Q901,902 4.3
2$C2785 ~~ =*39)
FM/AM LOOP FILTER
IC90!
om
sec
;
}
2SAII75
uPDITI8G512
pela
SWITCHING
PLL
CONTROLLER
5Vp-p
REC OUT O#*
D903
188254
10m
sec
TAPE/EXT
pp
or
MA
ISS
D551.
556
D202
LL
AYBACK
©
a0
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leases
SLV3IVC3
LN446YP
On ny
OF
ao
;
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ch)
PHONO
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IC 551, 552
AN6882
LED DRIVE
CD/AUX
REC OUT
TAPE/EXT
L pLayBack@©
1$S$ 254
or MAI65
R564 0566
D
R568
C556 0.0082
SIGNAL GND _
STRENGTH
LED
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or MAI65
“i
Refer To Note 2
R562
R566

PHONO EQUALIZER
Q213 R233 C219 D561~ 563
2SC2785F_2/K 50v2.2 C13. oR? Cc? c9 LN846RP
ee
SWITCHING
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270
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ay
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& Signal £303, AMP
a
AN7273A
FM IF DET
&AM CONV
x g
° ° 6
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= 7) wo wo
210 $502 a <a s[ 2 oe
T85F
(Tuner)
a
19
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su
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a
NG = >
Off-Set
Voltage
R6!2 C608
6313 raalelar
50V3.3 1¢C301
MPCIIEGIC3
R242 12K
MPX
or
AN7470
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nnn
vco
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(FM
SEPARATION
Adj)
at
28
SES
os
aS
a
Tse
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ox
fo
load
=)
2SC2785F
MUTING
(BALANCE)
VR502
1OOKG
Ic 50l
R248 D207
° AN6558F
= TONE CONTROL
AMP
Q205 ia
2SC!I685 i
SWITCH (SIGNAL) Gore
R555 R569
270 270
Dp) PLL CONTROLLER sss [ss esas
fa bra Bay
ET TEI TAGY
D513
MA4062H
R551
150
0206
SLV3IVC3
49V
|
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220
DSil
MA4062H
MUTING & DETECTION
-Lorsaao ox farms
VER LOAD DET
C)—2) OOO) 7)
0) - 45.0 #89485
yt
$603
(LOUDNESS)
[on
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11.8 V)
155V
[5.7.V
Q70I —
25D 12650
REGULATOR
rad
0551-556 D202 O °
SLV3IVC3
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83
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15.5
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icy
PHONO © Q703 9 28 ve (IMPEDANCE), O-3 ©
S Ro Oo” \
1C551,
552
seek
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AN6882 CD/AUX (© 2SC2785F
LED DRIVE xls 36 REGULATOR
-T | a or |
REC OUT ©
2SCIZ84NC ots) Co ©)
TAPE/EXT a REGULATOR
x } LpLaYBACK O = P14 9V) as =
R564
0566
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12 13 14 15 16 17 18 19 H@ SCHEMATIC DIAGRAM
Note 1:
Ds61~563 MAIN 1. $501~S$503 : Input selector switch in “tuner” position.
D564
¢609_
IOP
R719.
120K
$501
——
phono
$502
——
tuner
|
LN446YP igi... $503 — CD/aux
i kc 2. $504 : Tape monitor selector switch in “source” position.
== tape/ext, Mi source)
a ees MAIN 3. $601 : Main speaker switch in “‘on” position.
wn
Seg
aa
ce,
|
(mon,
M
off)
Ee E Bo R ch 4. $602 : Remote speaker switch in “off” position.
> Oo (mon, Hf off)
SPEAKERS 5. $603 : Loudness switch in “off” position.
BS
(mon,
Mf
off)
C663
S++)
6.
$604
:
Speaker
impedance
switch
in
“4~6Q”
position.
L ch 7 (4~60 @— 8~16Q)
; Q S REMOTE 7. $701 : Power switch in ‘‘on” position.
SVI 3001 oe (mon, & off)
2H-POWER AMP “7 =) cee4 R ch
«| 0.01
& 8. $901~S908 : Preset tuning switch.
e ‘s © $901 ——- CH1/CH9 S902 —— CH2/CH10
8 8 SPEAKER SELECTOR S903 —— CH3/CH11 $904 —— CH4/CH12
oe =e 2. $905 —— CH5/CH13 S906 —— CH6/CH 14
oT
(Tuner)
ee
S4
|
|
33
g
;
S907
—CH7/CH15
$908
——
CH8/CH16
: gE = 8S
R626
1/210
D708
(S911 —— FM, S913 —— AM)
12. $914,915 : Tuning switch.
(S914 —— up, $915 —— down)
13. <==) FMsignalline m= AM signal line
FM OSC coment: AF signal line
nae AM OSC Positive and negative voltage line
14. Important safety notice:
Components identified by A\ mark have special characteristics
important for safety. When replacing any of these components,
use only manufacturer’s specified parts.
e Indicated voltage values are the standard values for the unit measured
by the DC electronic circuit tester (high-impedance) with the chassis
taken as standard. Therefore, there may exist some errors in the
(HEADPHONE) voltage values, depending on the internal impedance of the DC circuit
Pb ite eto tester.
a
All
voltage
values
shown
in
circuitry
are
DC
voltage
in
FM
signal
$503
(CD/Aux)
J3
: fo eae 9. $909 : Memory switch in ‘‘manual’” position.
Ug (2) Lo oO S602 (manual —— auto)
» . | ont rie 10. $910 : FM mode selector switch in ‘‘mono”’ position.
& ae Ld! iE , (auto —— mono)
Pe eH _ ; 11. $911,913 : Band mode selector switch in “FM” position.
vig {D713 0714
aweeo |MA4120-M D713
Signal
(BALANCE)
VR502
1OOKG
IC 50I
AN6558F
TONE CONTROL
AMP
Q704
2SA992
RELAY DRIVE
= 5 l|
‘eae ¢
S) ©) ©) ©) C643 0.001
1/2 330
A r627
Q707 Q705,706 ; ;
re
=
2SC2785
2SA1175
(Monaural
signal)
reception
mode.
=
MUTING MUTING
Figures
in
(
)
stand
for
DC
voltage
in
AM
signal
reception
mode.
Original Part No. Supplyment Part No.
D915,
D916 MA150 MA162A
D701~704 SVDS3V20 SVDS3V40
Note 2:
MUTING & DETECTION
(VOLUME)
AC 220V
$603
A 50/60Hz
(LOUDNESS)
R722 47K
AC INLET
R521 18K
@ Use of ceramic filters in pairs
The ceramic filters (CF201, CF202 and CF203) for FM-IF circuit
&
Lily
[5.7 V]
C704
Q701 taal We x. a & are available in two ranks. For this machine, be sure to use the
=
ea
ena
96)
Eee
(44)
@
a
ceramics
of
the
same
rank
in
a
pair.
75 y 15.5 2. ON 28 = a) a eae At repairing and replacement, pay close attention to the diode
YL © 7 . °
9 8 ~= [deem eo lie a a (D915, D916) for use as different diodes must be used depending
K os] 58 ream 3)4—-C_) 0 on each rank of the ceramic filters.
185 : | ; i ioe
Q703 ° 2 S Te One. Y
= et i
4 > 2
8 &
0702
2SC2785F
REGULATOR
He es ae
2SCIS84NC
REGULATOR
MA4062mM
=
28 x <6 cE g ,
Se | SOT YW =z is (U)) A (U) Note: © Mark Diode is used.
4 PL2 A PLI lark Diode is not used.
ale LCD FRONT PANEL X Mark Diod
2 ch SRIK2 LAMP LAMP
uo

1 2 3 4 5 6 7 S
@ PRINTED CIRCUIT BOARDS
A
QUARTZ LOCK
Eure:
LED
P.C.B.
FI
SIGNAL
STRENGTH
LED
P.C.B.
2B
(QUARTZ LOCK)
(FM)
BAND
C
SELECTOR
7
| |
SPEAKER
SELECTOR
P.C.B.
|
!
|
|
|
|
)
1701
!
D
|
!
!
!
|
:
!
! :
]
of
|
)
|
7
:
!
!
E
(REMOTE)
(MAIN)
SPEAKERS
J INPUT SELECTOR LED P.C.B.
F
(PHONO) (TUNER) (CD/AUX) (TAPE MONITOR)
(CH3/11)
CH8/16 CH7/15 CH5/13) ,
ae (CH4/12)
FM/AM 16ch RANDOM PRESET TUNING
(CH6/14) (CH2/10)

'@ MAIN P.C.B.
PLL CONTROLLER P.C.B.
fil
(REC
OUT)
(PLAYBACK)
NAL STRENGTH LED P.C.B.
TP201
SELECTOR
L302
|
| |
l ra
| 4
14
' 1 |
1 |
' | |
($504)
(TAPE MONITOR)
| | (S501) | | (S502) } |($503)
(PHONO) (TUNER) (CD/AUX)
INPUT SELECTOR
(CH7/15 (CH1/9)
| (CH6/14)— (CH4/12) (CH2/10)
FM/AM 16ch RANDOM PRESET TUNING
(CH8/16)
TT ‘s60s)
o>
=

12
13
14
15
16
17
18
19
20
21
'4@ MAIN P.C.B.
a
[Gn
}
pLaPevext
J
EXT
,
=
SPEAKER
Al
(REC OUT)
(PLAYBACK)
PHONO EQUALIZER P.C.B.
2
TP201
TP 101
128
L302
| |(sso1) | | (3502) | |(s503)
ia
BALANCE
TREBLE
BASS
(PHONO)
(TUNER)
(CD/AUX)
(TAPE MONITOR)
TT (s603)
INPUT SELECTOR
Printed in Japan
aoe, ee ae Ye 860601300 @ A.K.