Technics SU-V2X User manual

ORDER NO. HAD84072860C8
Service
Manual
Amplifier
Stereo
Integrated
Amplifier
S
U
-
Vx
Computer Drive New Class A
Color
(K) --+- Black Type
(S) ---+ Silver Type
Color Area
(K)(S) | [E)----- Switzerland and Scandinavia
(S) | [EF] ---- France
(K)(S) | [Ei] ---- Italy
(K)(S) | [EK]---- United Kingdom
(K)(S) |[EH].--- Holland
(K)(S) | [EGA]--- F.R. Germany
(K)(S) | [EB] ---- Belgium
(K)(S) |[XA] +--+ Asia, Latin America, Africa,
Middle Near East and
Oceania
(K){S) |[XL] --- Australia |
SPECIFICATIONS
(DIN 45 500)
Frequency response
@ AMPLIFIER SECTION PHONO RIAA standard curve
+0.8 dB (30 Hz~15 kHz)
1 kHz continuous power output TUNER, CD, VIDEO/AUX,
both channels driven 2x50 W (4Q) TAPE 1/DA TAPE, TAPE 2 5 see 5 bee ete
250 W (8Q) +0, —0.2 dB (20 Hz~ z)
20 Hz~20 kHz continuous power output eae ee ad a dB
both channels driven 2x45 W (4Q) ubsonic filter Z,- oct.
2x45
W
(8Q)
Loudness
control
(volume
at
—30
dB)
50Hz,
+9dB
Total
harmonic
distortion
pee
ana
rated power at 20 Hz~20 kHz 0.03% (40) REC OUT 150 mV
0.005% (8) Channel balance, VIDEO/AUX 250 Hz~6,300 Hz +1dB
rated
power
at
1
kHz
0.007%
(4Q)
Channel
separation,
VIDEO/AUX
1
kHz
60 dB
0.003% (8) Headphones output level and impedance 450 mV/3300
half power at 20 Hz~20 kHz 0.003% (8Q) Load impedance
half power at 1 kHz 0.001% (8Q) MAIN or REMOTE AN~ 160
Intermodulation distortion MAIN and REMOTE 80~160
rated power at 250 Hz: 8 kHz=4:1, 8Q 0.03%
rated power at 60 Hz: 7 kHz=4:1, SMPTE, 8 0.005%
Power bandwidth m@ GENERAL
both channels driven, —3 dB 5 Hz~40 kHz (40, 0.03%) : BaEW
5 Hz~50 kHz (82, 0.02%) Sibel seer
; ower supply
Peatkaiey
pores
ae
For
United
Kingdom
AC
50H
2/60
Hz,
a eatin Bree ee! 110 V/120 V/229 V/240V
I ra :
peace Pee sana 2.5 mV/47 kQ For continental Europe AC 50 H2/60 Hz, 220V
TUNER, CD, VIDEO/AUX 150 mV/22 kQ For others ste eu en ee Be
1 V/22 kQ
SaonG Lane Ligue: baer eee Dimensions (WxHxD) 430 x97:< 290 mm
maximum
input
voltage
(1
kHz,
RMS)
160
mV
(16-18/16"x3-27/32"x)
4-7/16")
ly Weight 6.3 kg
rated power (40) (13.9 Ib)
PHONO 76 dB (IHF, A: 83 dB) Note: fe
TUNER, CD, VIDEO/AUX, . oe eae <n
TAPE
1/DA
TAPE,
TAPE
2
91
dB
(IHF,
A:
102
dB)
Total
harmonic
distortion
is
measured
by
the
digital
spectrum
T analyzer (H.P. 3045 system).
one controls
BASS 50 Hz, +10 dB~—10 dB Specifications are subject to change without notice fo; further
TREBLE 20 kHz, +10 dB~—10 dB improvent.
: ; e h he Matsushita Electric Trading Co., Ltd.
Cc hn1icS P.O. Box 288, Central Osaka Japan

@ CONTENTS
Page
PROTECTION CIRCUITRY .....-. 2.00.2 0s eevee nneee 2
BEFORE REPAIR AND ADJUSTMENT ..........22028. 2
LOCATION OF CONTROLS... .... 2.5.0 ee eee eee 2,3
DISASSEMBLY INSTRUCTIONS .............2..002. 4~6
TERMINAL GUIDE OF TRANSISTORS, DIODES AND IC’S.... 6
FUNCTION OF TERMINAL
1C601 (IcQ control)... ee 7
1C401 (Analog function control)... . 2... 2. ee ee 8
Mi PROTECTION CIRCUITRY
The protection circuitry may have operated if either of
the following conditions is noticed:
@ No sound is heard when the power is turned on.
@ Sound stops during a performance.
The function of this circuitry is to prevent circuitry
damage if, for example, the positive and negative speaker
connection wires are ‘‘shorted’’, or if speaker systems
with an impedance less than the indicated rated im-
pedance of this unit is used.
Page
CIRCUIT BOARDS AND WIRING CONNECTION
DIAGRAM). |.c3-605 Seetcce 5a Saree ee eek ae a 9,10
PRINTED CIRCUIT BOARDS ................00- 11~13
BLOCK DIAGRAM .... 2... 2.2... ee ee te ee 14,15
SCHEMATIC DIAGRAM ... 1... . . eee ee ee 16~20
RESISTORS & CAPACITORS .............00 00205 ae 21
REPLACEMENT PARTS LIST............ 02000 eu uue 22
EXPLODED VIEW iota ce eae ek Goa ae Oe ae 23, 24
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again.
Note
When the protection circuitry functions, the unit will not
operate unless the power is first turned off and then on
again.
M@ BEFORE REPAIR AND ADJUSTMENT
1. Disconnect AC power, Discharge both Power Supply Capacitors C701 and C702 (8200uF) through a 102, 5W resistor
to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may distroy solid state devices.
2. After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at 50/60Hz in NO SIGNAL mode should be shown below with respect to supply voltage 110V/
120V/220V/240V.
Power supply voltage AC110V
AC120V AC220V AC240V
Hi LOCATION OF CONTROLS
Operation indicator
Computer drive automatic indicator
Power switch
igirtbons
(bass)
Tone controls] |
(treble)
Tone switch ( HL defeat, = on)
Subsonic fitter switch ( HL off, = on}
170 ~360mA
90 ~ 200mA 80 ~180mA
Balance control
Audio muting switch ( off —»—20dB)
Loudness switch ( 9 off, = on)
Volume control
é Recording output
4}. signal indicator
{et Input signal
: indicator
Selectors
(tape 1/DA tape}
Recording mode switch
Recording mode indicator

ESPANOL
ESPANOL
@ ESPECIFICACIONES
(DIN 45 500)
m@ SECCION AMPLIFICADOR
Potencia continua de 1 kHz
en ambos canaies 2x50 W (4Q)
2x50 W (8Q)
Potencia continua de 20 Hz~20 kHz
en ambos canales 2x45 W (4Q)
2x45 W (8Q)
Distorsio6n armonica total
potencia de régimen a 20 Hz~ 20 kHz 0,03% (49)
0,005% (8Q)
0,007% (4Q)
0,003% (8Q)
0,003% (8Q)
0,001% (8Q)
potencia de régimen a1 kHz
mitad de potecia a 20 Hz~20 kHz
mitad de potencia a 1 kHz
Distorsion por intermodulacion
potencia de régimen a 250 Hz: 8 kHz=4:1, 8Q 0,03%
potencia de régimen a 60 Hz: 7 kHz=4:1, SMPTE, 8Q
0,005%
Ancho de banda de potencia
en ambos canales, —3 dB 5 Hz~40 kHz (4Q, 0,03%)
5 Hz~50 kHz (8, 0,02% )
0,9 mV
30 (4Q), 60 (8Q)
Zumbido residual y ruido
Factor de amortiguamiento
Sensibilldad e impedancia de entrada
TOCADISC. (PHONO) 2,5 mV/47 kQ
SINTON., DISCO COMPACTOR, VIDEO/AUX.
(TUNER, CD, VIDEO/AUX) 150 mV/22 kQ
GRAB. 1/DIGITAL, GRAB. 2.
(TAPE 1/DA TAPE, TAPE 2) 150 mV/22 kQ
Voltaje maximo de entrada de PHONO (1 kHz, RMS)
Relacion de sefal a ruido
potencia de régimen (40)
TOCADIS. (PHONO) 76 dB (IHF, A: 83 dB)
SINTON., DISCO COMPACTO, VIDEO/AUX,
GRAB. 1/DIGITAL, GRAB. 2
(TUNER, CD, VIDEO/AUX,
TAPE 1/DA TAPE, TAPE 2)
160 mV
91 dB (IHF, A: 102 dB)
Respuesta de frecuencia
TOCADISC. (PHONO) curva RIAA estandar
+0,8 dB (30 Hz~15 kHz)
SINTON., DISCO COMPACTO, VIDEO/AUX,
GRAB. 1/DIGITAL, GRAB. 2
(TUNER, CD, VIDEO/AUX,
TAPE 1/DA TAPE, TAPE2) 5 Hz~120 kHz (—3 cB),
+0, —0,2 dB (20 Hz~20 kHz)
Controles de tono
BAJOS (BASS) 50 Hz, +10 dB~-10dB
AGUDOS (TREBLE) 20 kHz, +10 dB~—10dB
Silenciamiento -—20dB
Filtro subsénico 30 Hz, ~6 dB/oct.
Control de sonoridad (volumen a —30 dB) 50 Hz, +9 dB
Voltaje de salida
SAL. GRAB. (REC OUT) 150 mV
Equilibrio de canales, VIDEO/AUX 250 Hz~6300 Hz +1dB
Separacion de canales, VIDEO/AUX 1 kHz 60dB
impedancia y nivel de salida de los auriculares 450 mV/330Q
Impedancia de carga
MAIN o REMOTE 40~1602
MAIN y REMOTE 8N~16Q
m GENERAL
Consumo de energia 295 W
Alimentacion de energia
Para Europa continental CA 50/60 Hz, 220 V
Para otros paises CA 50 H2/60 Hz,
110 V/120 V/220 V/240 V
Dimensiones (An. XAl. x Prof.) 430x97x290 mm
Peso 6,3 kg
Nota:
La distorsién armonica total se mide con el analizador de espec-
tro digital (sistema H.P. 3045).
Estas especificaciones estan sujetas a cualquier cambio sin Previo eviso.

@
CIRCUITS
TO
BE
CHANGED
AND
THE
AREAS
e Power supply circuits
For [EK] area ([EK] is available in United Kingdom)
S13
A! POWER)
AC 1110/1207
220/240V
(50/60Hz)
For [XL] area ((XL] is available in Australia)
AC HO/120/7
220/240V
(50/60Hz)
| Ac 10/1207
220/240V
(50/60H2z}
AUNSWITCHED
fh onl cy
Printed in Japan
af 840707100 ® YK/IM

Stereo Integrated Amplifier
ORDER NO. HAD84072860C8—A
SU-V2X
@ This booklet includes the specifications of Model SU-V2X (Order No. HAD84072860C8) written in German, French
and Spanish.
®@ File this booklet together with the service manual of Model SU-V2X.
@ Dieses Biichlein umfaRt die technischen Daten von Modell
Deutsch, Franzdésisch und Spanisch.
SU-V2X_ (Bestell-Nr. HAD84072860C8) in den Sprachen
@ Bewahren Sie dieses Buchlein zusammen mit dem Service-Handbuch von Modell SU-V2X auf.
© Cette brochure comprend les spécifications du Modéle SU-V2X (N° d’Ordre: HAD84072860C8) écrites en frangais,
en allemand et en espagnol.
@ Classer cette brochure en méme temps qu‘avec le manuel de service du Modéle SU-V2X.
@
Este
librito
incluye
las
especificaciones
de
Modelo
SU-V2X
(Pedido
N°,
HAD84072860C8)
escritas
en
aleman,
francés
y espanol.
® Guardar este librito juntamente con el manual de servicio de Modelo SU-V2X.
DEUTSCH
Mi TECHNISCHE DATEN
(DIN 45 500)
@ VERSTARKERTEIL
Dauerton-Ausgangsleistung bei 1 kHz
beide Kandle ausgesteuert 2x50 W (40)
2x50 W (8Q)
Dauerton-Ausgangsleistung bei 20 Hz~20 kHz
beide Kandale ausgesteuert 2x45 W (4Q)
2x45 W (8Q)
Gesamtklirrfaktor
Nennleistung bei 20 Hz~ 20 kHz 0,03% (4)
0,005% (8Q)
Nennleistung bei 1 kHz 0,007% (4Q)
0,003% (89)
halbe Nennleistung bei 20 Hz~ 20 kHz 0,003% (8)
halbe Nennleistung bei 1 kHz 0,001 % (8Q)
Intermodulationsfaktor
Nennleistung bei 250 Hz: 8 kHz=4:1, 8 Q 0,03%
Nennleistung bei 60 Hz: 7 kHz=4:1, nach SMPTE, 80
0,005%
Leistungsbandbreite
beide Kanale ausgesteuert bei —3 dB
5 Hz~40 kHz (4Q, 0,03%)
5 Hz~50 kHz (8, 0,02%)
Restbrumm und Gerausch 0,9 mV
Dampfungstaktor
30
(49),
60
(8Q)
Eingangsempfindlichkeit und -impedanz
Phono 2,5 mV/47 kQ
TUNER, CD, VIDEO/AUX,
TAPE 1/DA TAPE, TAPE 2 150 mV/22 kQ
Maximale T A-Eingangsspannung (1 kHz, eff.) 160 mV
Gerauschspannungsabstand
Nennleistung (40)
Phono 76 dB (nach IHF, A: 83 dB)
TUNER, CD, VIDEO/AUX,
TAPE 1/DA TAPE, TAPE 2 91 dB (nach IHF, A: 102 dB)
Frequenzgang
Phono RIAA-Stand ardkurve
+0.8 dB (30 Hz~15 kHz)
TUNER, CD, VIDEO/AUX,
TAPE 1/DA TAPE, TAPE 2 5 Hz~120 kHz (—3 dB)
+0, —0,2 dB (20 Hz ~20 kHz)
Klangregler
BaBregler
(BASS)
50
Hz,
+10
dB
~-10dB
Héhenregler
(TREBLE)
20
kHz,
+10dB~—10dB
Tondampfung —20dB
Tiefenfilter 30 Hz, ~ 6 dB/Okt.
Lautstarkekorrektur (Loudness)
(bei —30 dB Ausgangsleistung) 50Hiz, +9 dB
Ausgangsspannung
Aufnahmeausgang (REC OUT) 150 mV
Kanalabweichung (VIDEO/AUX, 250 Hz~6 300 Hz) +1dB
Ubersprechdampfung (VIDEO/AUX, 1 kHz) 60 dB
Kopfhérerpegel und -impedanz 456 mV/3300
Lautsprecherimpedanz
MAIN oder REMOTE 40~160
MAIN und REMOTE 80~160
@ ALLGEMEINE DATEN
Leistungsaufnahme 295W
Netzspannung
Fir Kontinentaleuropa Wechselstrom 50 Hz/60Fiz, 220 V
Fur andere Lander Wechselstrom 50t-42/60 Hz,
110 V/120 V/21O V/240 V
Abmessungen (BXHxT) 430 x 9)>« 290 mm
Gewicht 6,3 kg
Bemerkung:
Der Gesamtklirrfaktor wurde mit einem digitalen Rausd~spektro-
meter (Anlage H.P. 3045) gemessen.
Spezifikationen kénnen infolge von Verbesserungen g me
Ankiindigung geandert werden.
x
iS)
7)
| od
=)
Ww
a

FRANCAIS
FRANCAIS
Mi CARACTERISTIQUES
(DIN 45 500)
m@ SECTION AMPLIFICATEUR
Puissance de sortie continue a 1 kHz
les deux canaux en circuit 2x50 W (4Q)
2x50 W (8Q)
Puissance de sortie continue de 20 Hz~20 kHz
les deux canaux en circuit 2x45 W (40)
2x45 W (8Q)
Distorsion harmonique totale
a puissance nominale (20 Hz~20 kHz) 0,03% (4Q)
0,005% (8Q)
0,007% (4Q)
0,003% (8Q)
0,003% (8)
0,001% (8Q)
a puissance nominale (1 kHz)
a demi-puissance (20 Hz~20 kHz)
a demi-puissance (1 kHz)
Distorsion d’intermodulation
a puissance nominale a 250 Hz: 8 kHz=4:1, 8Q 0,03%
a puissance nominale a 60 Hz: 7 kHz=4:1, SMPTE, 80
0,005%
Réponse de fréquences
les deux canaux en circuit, —3 dB
5 Hz~40 kHz (4Q, 0,03%)
5 Hz~50 kHz (8, 0,02%)
0,9 mV
30 (49), 60 (8)
Bruit et ronflement résiduels
Coefficient d’amortissement
Sensibilité et impédance d’entrée
PHONO 2,5 mV/47 kQ
SYNTONISATEUR, DISQUE COMPACT, VIDEO/AUX,
BANDE 1/DIGITALE, BANDE 2 (TUNER, CD,
VIDEO/AUX, TAPE 1/DA TAPE, TAPE 2)
PHONO (tension d’entrée maximum, 1 kHz RMS)
Signal/Bruit
a puissance nominale (4Q)
PHONO 76 dB (IHF, A:83 dB)
SYNTONISATEUR, DISQUE COMPACTO,
VIDEO/AUX, BANDE 1/DIGITALE, BANDE 2
(TUNER, CD, VIDEO/AUX, TAPE 1/DA TAPE, TAPE 2)
91 dB (IHF, A: 102 dB)
150 mV/22 k<Q
160 mV
Réponse de fréquence
PHONO Courbe nominale RIAA
+0,8 dB (30 Hz~ 15 kHz)
SYNTONISATEUR, DISQUE COMPACTO, VIDEO/AUX,
BANDE 1/DIGITALE, BANDE 2 (TUNER, CD, VIDEO/AUX,
TAPE 1/DA TAPE, TAPE 2)
5 Hz~120 kHz (—3 dB)
+0, —0,2 dB (20 Hz~20 kHz)
Reéglage de la tonalité
BASSES (BASS)
AIGUS (TREBLE)
50 Hz, +10 dB~-—10dB
20 kHz, +10 dB~-10dB
Réglage silencieux —20 dB
Filtre subsonique 30 Hz, —6 dB/oct.
Compensateur physiologique (volume a —30 dB)
50 Hz, +9 dB
Tension de sortie
SORTIE ENREGISTREMENT (REC OUT) 150 mV
Equilibrage des canaux, VIDEO/AUX 250 Hz~6300 Hz
+1dB
Séparation des canaux, VIDEO/AUX 1 kHz 60 dB
Niveau de sortie des casques et impédance 450 mV/3300
impédance de charge
PRINCIPALE ou AUXILIAIRE (MAIN or REMOTE) 40~160
PRINCIPALE et AUXILIAIRE (MAIN and REMOTE) 80~160
@ DIVERS
Consommation 295 W
Alimentation
Pour |l’Europe CA 50 H2/60 Hz, 220 V
Autres CA 50 Hz/60 Hz, 110 V/120 V/220 V/240 V
Dimensions (LXHxPr) 430x97x290 mm
Poids 6,3 kg
Remarques:
1. On mesure la distorsion harmonique totale au moyen d’un
analyseur de spectre digital (Systeme H.P. 3045).
2. La Société NATIONAL-PANASONIC-FRANCE, importateur
du matériel MATSUSHITA-ELECTRIC déclare que cet appa-
reil est conforme aux prescriptions de la directive 76/889
/C.E.E. (arrété 14 Janvier 1980).
Sujet 4 changement sans prearis.

(Switched) AC outlets
layback
Tape IDA tape 'P ayback)
(Unswitched) ({XA] area only)
(Rec
out)
Main
speaker
{R)
Ground
(R) (L) (expect for [XL] area)
Voltage selector
(110V ~—»1 20V-——»220V-~——»240V)
(For [EK}, [XL], [XA] areas only)
Speaker impedance selector
(Rec out) ( gg Main or remote 8~162. _ Main or remote 4 ~62. )
Tape 2 Main and remote 16022 , ~— Main and remote 8].
(Playback)
Tuner input
CD input
Remote speaker
Video/aux input
e Speaker impedance selector
Set to the position corresponding to the impedance of the speaker systems being Note that, if 2 pairs of speaker systems are used at the same
used. time, determine the composite impedance as described below.
If this setting is not correctly made, the result may be a deterioration of
performance.
* If either the main or the remote speaker systems are used: Bee “Ee
4~60,(8—~=): ~ a eeobaan Fat cneaks systems
. =
re aa of a=68. ns connected to “MAIN” terminals
Re=impedance of speaker systems
For
speaker
impedance
of
8~160.
connected
to
‘‘REMOTE”
terminals
* If both main and remote speaker systems are used:
80. (a~-):
For speaker impedance of 80 or more and less than 162.
160. (.~8):
Note:
For speaker impedance of 160.
Be sure to make this setting before switching the power ‘‘on”.
®@ The power supply for this unit varies depending upon the areas. Also, the parts used for power supply are different.
So, refer to the circuit diagram (Separate service manual: Order No. HAD84072860C8—A) and the replacement parts list.
* [XA], [EK] and [XL] areas are provided with voltage selector.
* 220V (50/60Hz) for Continental Europe. (Except for United Kingdom)
* 110V/120V/220V/240V (50/60Hz) for [XA], [EK] and [XL] areas.
* Phono input capacitance is about 150pF.

Mi DISASSEMBLY INSTRUCTIONS
fee How to remove the cabinet
1
1. Remove the 4 screws (@~ @)
How to remove the front panel
1, Remove the 4 screws. ( @~ @)
2. Remove the volume knob.
3. Remove the 1 nut. (@)
4, Pull out the 4 connectors.
(J7 ~ J9, J11)
Procedure
1 3
—
Rear panel

ae
How
to
remove
the
input
selector
P.C.B.
Procedure | 1 Remove the 3 screws. (@~@) 3. Remove the input selector P.C.B.
1
+3
+4
~
2.
Push
the
11
tabs.
(
(4)
®
)
Front
panel
Front panel
Input selector P.C.B.
How to remove the balance/tone
control P.C.B.
Procedure
1.
Remove
the
3
knobs.
5.
Remove
the
balance/tone
control
P.C.B.
1
+3
+5]
2,
Remove
the
3
nuts.
(Q@~®@)
3. Remove the 3 covers.
4. Remove the 1 screw. ( @)
Balance/tone
control P.C.B.
.
*)
Balance/tone
>
nobs
Cover
control
P.C.B.
,
Front chassis
oY
No.
|
How
to
remove
the
power
IC
:
argu:
1,
Unsolder
the
power
IC.
za
2.
Remove
the
2
screws
(@,
@)
Rear panel
Power IC
When mounting the power amplifier IC,
apply silicon compound (SZZOL15) to
the rear of the power amplifier IC.
Screwdriver

pee No. How to remove the sub panel
Procedure
1. Push the 4 tabs of the sub panel.
1 +3 +4 +7
2. Remove the sub panel in the direction of the arrow @® ;
Front panel
Screwdriver
2802631, 2801123
[MN4069UB
_|
14pin|
‘
2SA992,
2SC3112
M53249P |
YP
3 / . Ga Drain
‘s . Gate
Source
3. Source
: ~™=16
MA165, MA167
Front panel
SVINJM20430D
AN6553F

Mi
FUNCTION
OF
TERMINAL
IC601
(Ica
control).-——-
MN1404STE
Name of block
VSS__ | Powersupply mput | Gi ounded. (OV)
2
2
Description of terminal
1 | terminal |
2
AI3
Not
used
in
this
unit
|
When
effective
output
4V
signal
sensor
of
L-ch
power
amplifier
operates,
“L”’
is
3
|
Al2
‘
Input
port
A
[
put
in
causing
the
output
of
terminal
14
to
go
“H”.
4
iA
al
When
effective
output
2V
signal
sensors
of
both-ch
power
amplifiers
operate,
“‘L”
is
put
in
causing
the
output
of
terminal
15
to
go
“H”.
é
A10
|
When
effective
output
4V
signal
sensor
of
R-ch
power
amplifier
operates,
‘“L”
is
|
put
in
causing
the
output
of
terminal
16
to
go
“H”.
cf
6
TST
Test
input
terminal
|
Terminal
for
testing
LSI.
(Ground)
;
F :
All
outputs
are
cleared
or
reset
with
input
at
“L”.
(It
is
connected
to
power
7
RST
Reset
input
terminal
supply-circuit)
T
.
ry
7
wpe
7
E :
When
overload
detection
circuit
of
power
amplifier
output
operates,
“L”
is
put
8
SNS
|Sensor
input
terminal
in
causing
the
output
of
terminal
12
to
go
“L”.
|Power
supply
input
9
iE
VDD
|
terminal
Apply
2Y:
10
|OSC
OSC
input
terminal
Clock
signal
(about
415kHz)
can
be
obtained
by
internal
oscillation
circuit.
]
When
protection
circuit
operates,
“H”
and
“L”
outputs
are
repeated
and
‘“‘safety
11
CO5
operation”
indicator
blinks.
12
|
CO4
Output
relay
turn
ON
with
“H”
output.
13
CO
3
Indicator
“‘auto”
lights
up
at
“H”.
Output port C +
14 ;CO2
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A
input
port
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sensor).
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output)
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“on”
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[~safety
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Symbol
Relay “‘on”’
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sec
1
40V
eT
13
C03
5V
Preheat
[auto_J
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14sec
<DC detection or load shorting mode>
8
|
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DC
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8
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<Ica control operation mode>
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Both-ch

Mi FUNCTION OF TERMINAL
1C401 (Analog function control)
Input/Output Active
Description of terminal
Output H Indicater ‘muting’ light up at “H”’.
OV
x2 Not used in this unit.
PO3/x 1 Input
; Push (once) the Selection of input
It detects the level of pin G).
P20/PSTB Output
ov
Ctock output port for analog switch.
Clock signal output to [C201 pin a) and 1C202 pin (5) during data transmission.
[Refer to ES)
P21/PTOUT Output
Push (once) the Selection of input
Indicater ‘‘rec selector” light up at “H”. “ree selector” HANAN] nuit 42” selector
aos Vv
P22 Output
Data output for analog switch.
Data signal output to 1C201 pin and 1C202 pin . [Refer to EY)
P23 Output
Strobe output port for analog switch.
Strobe signal output to 1C201 pin @® and 1C202 pin () during data transmission.
(Refer to EY]
P60
P61
P62
Output
Rec side indicator 3-bit output.
Rec indicator drive signal output to 1C403 pins (3) ~ 45). (Refer to El]
P63 Input
Stop mode sensing input. 4.4V
With high pulse signal input, the stop command is executed and OV
the mode is shifted to standby. Power switch “OFF
cli
External clock oscillation frequency (400kHz) input port. [Refer to fq]
CL2
Vpp
RESET
Input termina! for reset signal.
Not used in this unit.
Power switch “ON” Power switch “OFF’’
4av—} | WwW
Ov Ov
P10
Pil
P12
P13
Power supply input terminal. (Apply 4.4V)
Input terminal for key return signal from external key matrix. [Refer to [J]
P50
P51
P52
Output
Output terminal for key scan signal for external key matrix. (Output voltage is 4.4V)
P53 Output
Muting signal output during input switch or
Rec switch operation.
ow”
ov
Push the each input selector or muting switch.
POO/INT Input
4
H = Function 1 mode
L = Function 2 mode
The input of this unit is ‘‘H’’ (4.9V) because the mode used is Function 1.
Mode shifting port.
P40
P41 Output
Input side indicator 3-bit output.
Input indicator drive signal to 1C402 pins (3) ~ (5 . [Refer to GB)
ey
fe}ic401 @ 2v DiIv/1 wSEC
Ground terminal.
Oo Push the rec selector switch. (“rec indicator” blinking)
@ Push the each input selector switch.
L=0V,H=4.3V
Input selector Fs L L H
phono L L H L
tuner Lt H L L
cD video/aux H L L L
video/aux tape 2 L L H r L
tape 2 tape 1/DA tape EL | L L | H
tape 1/DA tape rec selector H L L L
Data of input selector/rec —+ rea neh -!C201 or —-
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Input selector
| phono L L ] L
25
us
tuner
H
L L
|
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video/aux - H H L ]
75
ps
125
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2
H
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tape 1/DA tape L L H
| rec selector L L L |
25 us muting L eon I L |

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SAFETY OPERATION IND.
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Mi SCHEMATIC DIAGRAM
(This schematic diagram may be modified at any time with the development of new technology.)
*
A
OVERLOAD DET.
(LEVEL SIF TEI
AC 220V
The part No. of transistors, IC and diodes mentioned in the schematic diagram stand for production part No.
Regarding the part No. with €) mark, the production part No. are different from the replacement part No.
Therefore, when placing an order for replacement part, please use the part No. in the replacement part list.
Notes:
1. $1~S6 :_ Input selector switch in “phono” position.
S1: phono, S2: tuner, S3: CD, S4: video/aux, S5: tape 1/DA tape, S6: tape 2
2. $7 : Recording selector switch in ‘‘off” position.
3. $8 : Audio muting switch in “off” position. (off <> —20dB)
4. $9-1 : Loudness switch in “off” position. (on <> off)
5. $10-1 : Subsonic filter switch in “off” position (on <— off)
6. $10-2. : Tone switch in “defeat” position. (defeat <-> on)
7. $11-1: Main speakers selector switch in “‘on” position. (on <— off)
8. S11-2. : Remote speakers selector switch in “off” position. (on <— off)
9. $12 : Speaker impedance selector switch in “82 ~ 162/162" position.
[ Main or remote 8~16Q ._, Main or remote 4~62
Main and remote 162 Main and remote 82
10. $13 : Power switch in “‘on” position.
. $14 [XA, EK, XL] only : Voltage selector switch in ““240V” position.
(110V <= 120V <-> 240V <> 220V)
12. 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.
13. [{~] Indicated voltage values are the standard values for the DC electronic circuit tester (high-impedance)
with the chassis taken as standard. Therefore, there may exist some errors in the voltage values,
depending on the internal impedance of the DC circuit tester. [high tap —» 162/8~ 16Q]
in
(
)
stand
for
DC
voltage
in
low
tap.
[82/4
~
6Q]
Phono signal (Lch).
Positive voltage lines or Negative voltage lines.
. This is the basic circuit diagram (For continental Europe) of this unit. Note that part of the circuit is subject
to change depending on the areas.
. Regarding the circuits to be changed in the basic circuit diagram (For continental Europe) and related areas
[EK], [XL], [XA] refer to the separate service manual (Order No. HAD84072860C8-A).
e
Change
in
the
parts
list
and
schematic
diagram
in
use
of
power
IC
(SV12003)
1c502 Q503,504
ST12003 2SC2631
2CH POWER AMP & CURRENT STABILIZER
PROTECTION DET.
Loch
Speaker
terminal
terminal
(50/60 Hz)
Change of Power Amp. IC Parts No.
For F.R. Germany only STK2038-4 => 8v12003 Part Name & Description
INTEGRATED CIRCUIT
1C502 | STK2038-4 | svi2003 Power Amplifier
TRANSISTORS
Q505,506 | 2SA992 [_Not used
DIODES
D503,504_ | MA167 | Not used
RESISTORS
R527, 528 ERX2ANJR22 Not used
R529, 530 ERDS2TJ331 Not used
R531, 532 ERDS2TJ561 Not used
R533, 534 ERDS2TJ272 Not used
R539, 540 Not used ERD25FJ561 Carbon, 1/4W 5602
R608 Not used ERDS2TJ183 [ Carbon, 1/4W 18kQ
R609, 610 ERDS2TJ183 Not used

Mi RESISTORS & CAPACITORS
Notes:
Resistor Type
1. Part numbers are indicated on most mechanical parts.
Please use this part number for parts orders.
2. 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.
Tolerance
ERD
ERG
ERX
ERO:
@ RESISTORS
; Carbon
: Metal Oxide
: Metal Film
Metal Film
Capacitor Type
The’‘©"’ mark is service standard parts and may differ from
production parts.
The unit of resistance is Q(ohm),
K =
10002, M = 1000k0.
The unit of capacitance is LF (microfarad).
P = 10° pF
Bracketed indications in Ref. No. columns specify the area.
Parts without these indications can be used for all areas.
Voltage
ECEA Type
Part No. Ref. No. Part No.
Electrolytic
Ceramic
Ceramic
Polyester
Electrolytic
Non Poiar Electrolytic
Liquid Electrolyte
1A: 10V
iC: 16V
1E =: 25V
1H: 50V
Double layer Capacitor
Ref. No.
Part No.
OJ : 6.3V
Ref. No.
Tolerance
: t0.5pF
: £10%
: +80%, —20%
: +100%, —-0%
Part No.
Mi REPLACEMENT PARTS LIST
_1, Part numbers are indicated on most mechanical parts. Please use this part number for parts order.
Important safety notice: Components identified by AY mark have special characteristics important for safety.
When replacing any of these components, use only manufacturer's specified parts.
Notes:
Ref. No.
®
ON OAKRW
Part No.
Part other than ®
—marked parts are used for black only, while © —marked parts are for silver type only.
Part Name & Description
Ref. No. Part No. Part Name & Description
—and O —marked are used for both biack and silver type.
Bracketed indications in Ref. No. columns specify the area. Parts without these indications can be used for all areas.
The “’ © “ mark is service standard parts and may differ from production parts.
The parenthesized numbers in the column of description stand for the quantity per set.
This parts list contains ST K2038-4 (power IC). When SV12003 (power IC) is used, refer to the parts list on page 20.
Ref. No.
Part No.
Part Name & Description
FUSES
CABINET and
CHASSIS PARTS
INTEGRATED CIRCUITS
C1
1C201
{C202
1C301
(C401
1€402, 403
'C404
(C501
(C502
{C601
{C701
SVINJM2043SE
TC9163N
TC9164N
AN6553F
UPD7506C043
M53242P
MN4069UB
AN7062
STK2038—4
MN1404STE
AN78M05
integrated Circuit
Integrated Circuit
Integrated Circuit
Integrated Circuit
integrated Circuit
integrated Circuit
Integrated Circuit
integrated Circuit
integrated Circuit
Integrated Circuit
[Integrated Circuit
F1(EK,XL,XA)
A
F1 (other) A
F2(EK,XL,XA)
XBA2C31TRO
XBA2C16TRO
XBA2C16TRO
Fuse, 250V,T3.1A
Fuse, 250V,T1.6A
Fuse, 250V, T1L.6A
SWITCHES
TRANSISTORS
ERO
ERO
ERD
ERD
ERD
ERD
R151,152
{EGA} only
R153, 154
(EGA) only
R201, 202
R203, 204
R205, 206
R207, 208
R209, 210
R211,212
ERD
ERD
ERD
ERD
R213,214
(EGA) only
R215,216
(EGA) only
R217,118
(EGA) only
@ CAPACITORS
ERD10TLJ391U
EROIOTLJ271U
ERDIOTLJ680U
ERDS2TJ472
ERDS2TJ183
ERDS2TJ101
ERDS2TJ473
ERDS2TJ182
ERODS2TJ182
ERDS2TJ182
R219, 220
(EGA) only
R221, 222
(EGA) only
R301, 302
R303, 304
R305, 306
R307, 308
R309, 310
R311, 312
ERDS2TJ182
1LOMKG2213
10MKG5622 ERDS2TJ182
ERDS2TJ824
ERDS2TJ561
ERDS2TJ154
ERDS2TJ224
ERDS2TJ223
ERDS2TJ392
10TLJ184U
10TLJ123U
10TLJ563U
10TLJ102U
$2T J222 R315, 316
R317, 318
R319, 320
R321, 322
R323, 324
R325
R327 , 328
R401
R402, 403
R404, 405
ERDS2TJ183
ERDS2TJ562
ERDS2TJ102
ERDS2TJ223
ERDS2TJ392
ERDS2TJ334
ERDS2TJ224
ERDS2TJ473
ERDS2TJ104
ERDS2TJ104
S2TJ222
$2T J333
S2T J392
R406
R408, 409
R410
R411, 412
R413
R414
ERDS2TJ472
ERDS2TJ181
ERDS2TJ824
ERDS2TJ181
ERDS2TJ472
ERDS2TJ103
Part No. Ref. No. Part No.
R451
R452
R453
R501, 502
R503 ,504
R505, 506
R507, 508
R509, 510
R511,512
R513,514 @ A
R515, 516
R517,518
R519,520 © A
R521,522
A
R523,524 © A
R525, 526
R527,528
R529,530
R531, 532
R533, 534
R535
R537
R538
R601 ,602
R603, 604
R605
So)
A
OA
OA
ERDS2TJ224
ERDS2TJ273
ERDS2TJ103
ERDS2TJ561
ERDS2TJ823
ERDS2TJ272
ERDS2TJ823
ERDS2TJ471
ERDS2TJ103
ERD25FJ470
ERDS2TJ471
ERDS2TJ103
ERD25FJ470
ERDS1FJ100
ERD25F5100
ERGIANJ331
ERX2ANJR22
ERDS2TJ331
ERDS2TJ561
ERDS2TJ272
ERD25FJ5R6
ERD25FJ332
ERDS2TJ473
ERDS2TJ223
ERDS2TJ333
ERDS2TJ124
Part No.
R606
R607
R609,610
R611
R612
R613,614
R615
R618
R619, 620
R621, 622
R623, 624
R625, 626
R627, 628
R629
R630 ©
R632 ,633
R634
R635
R636
R637
R701, 702
R705, 706
R707, 708
Ref. No.
ERDS2TJ104
ERDS2TJ333
ERDS2TJ183
ERDS2TJ273
ERDS2TJ394
ERDS2TJ103
ERDS2TJ103
ERDS2TJ153
ERDS2TJ103
ERDS2TJ223
ERDS2TJ223
ERDS2TJ103
ERDS2TJ822
ERDS2TJ392
ERG2ANJ471
ERDS2TJ181
ERDS2TJ103
ERDS2TJ223
ERDS2TJ822
ERDS2TJ183
ERD25FJ471
ERDS2TJ153
ERDS2TJ681
Part No.
Q301, 302
Q401,451 ©
690,610
Q403, 404,405
606,611,612
Q501, 502,702
Q503,504, 701
Q505,5066 ©
Q601 602
Q603, 604,605
607,703
Q608
Q704,705
DIODES
D301 ©
D401, 402,417
418,451
604,607,608
D403, 405~410
D404, 411~416
D501,502 ©
D503, 504,601
602
D505, 706
D603
D605
D606
D701~704
D705 A
2SK301—S
2SA1015Y
UN4211
2SA1123—R
2SC2631—Q
2SA992E
UN4212
2SC1815—Y
2803112
2SK246—Y
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
$1~8
$9
$10
$11
$12
$13 A
S14(EK,XA,
XL) A
$$G13
SSH1165
$SH2082
$SH2081
SSH1152
SSH1057—1
ESE37219
Switch, Input
Selector
Switch, Loudness
Switch, Tone
Switch, Speaker
Selector
Switch, Tap
Selector
Switch, Power
Switch, Voltage
Selector
RELAY
RLY601
SSY126 Relay
CABINET an
CHASSIS PARTS
20A90
MA165
SVDPR5533K
SVDAY5533K —M
MA162A
MA167
MA1160H
SVDMZ424B
LN346GP
LN446YP
SVDS3V40
SVDSR1K2
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
LED
LED
Diode
Diode
COILS
ECC
ECK
ECQ
ECQ
ECQ
C205, 206
(EGA) only
C207 , 208
(EGA) only
C€209,210
{EGA} only
211,212
{EGA) only
ECC
Ecc
Ecc
ECC
ECEALHU3R3
ECEA1HNO10S
ECEA0JU330
ECEA1EU330
C213,214
(EGA) only
C301 , 302
C303, 304
C305, 306
€307, 308
C309, 310
€311,312
313,314
C315, 316
ECCD1H101K
D1H101K
D1H471KB
M1H223JZ
M1H682JZ
ECQM1H563JZ
ECEALHU3R3
ECCD1H820K
ECQM1H153JZ
ECQM1H8235Z
ECQM1H182J5Z
ECQM1H183JZ
ECEALEU4R7
M1H563JZ
D1H101K C317
C319, 320
C321
C322
C401
C403, 404
C405, 406
C451
C501, 502
ECEALHUR22
ECCD1H390K
ECEAIEU100
ECEAIEU100
ECEAICU100
ECCD1H121K
ECKD1H1022F
ECKD1H103ZF
ECEA1HU3R3
D1H101K
D1H101K
D1H101K
C503, 504
C505 , 506
C507,
C509,
Coil,
C513,
Cs5i5,
C517,
C521,
C523
C525
C527 528
C551, 552
©e®@
QOGO@OO®
®S
(EGA) only)
553,554
(EGA) only S)
C555, 556
(EGA) only S)
ECEA1CU220
ECCD1H100KC
ECKD1H681KB
ECKD1H331KB
ECCD1H100KC
ECCD1H820K
ECCD1H820K
ECKD1H103MD
ECKD1H223ZF
ECEALHU3R3
ECEALEU3R3
ECCD1H820K
ECKD1H681KB
ECKDiH681KB
ECKD1H103MD
C557 558
(EGA) only )
C601 , 602
C603
C604
C605
C606
C609
c701,
C703
C704
C705,
707,
709,
C712
C713
C801
ECKD1H103MD
ECEAIEU3R3
ECEAICU101
ECEA1HUR47
ECEA1CU100
ECEAIEU4R7
ECCD1HI121K
ECETS1HV822U
ECEA1CU222
ECEAQJU101
EECW2R3A3R3
ECEA1EU330
ECEAIEU3R3
ECKD1H103ZF
ECKD2H103ZF
ECKDKC103PF2
LI(EGAJonly
L101, 102
(EGA) only
L501, 502
L551~-554
(EGAJonly
SLQZ650MH49
SLMI1Z33
SLQY18G—~10
SLOQY07G — 30
Coil
Coil
Coil
Coil
TRANSFORMERS
T1(EK,XL,XA)
A
Tifother) A
SLT5U48
SLT5U47
Power
Transformer
Power
Transformer
CRYSTAL
X401
SVFCSB400P —M
Crystal OSC
VARIABLE RE
SISTORS
VR201
VR301
VR302, 303
EWJKMAO54B15
EWHFSAF25G15
EWCXEA011C15
Variable Resistor,
100K (B)
Variable Resistor,
100K (G)
Variable Resistor,
100K(C)
THERMISTERS
TH201 , 202
RRT104
Thermistor (100kQ)
LAMPS
PL601,602 A
XAMR74S17 Lamp
1
1
> |SGWUV2X —SE
SGWUV2X — KE
SGXUV2X~ SE4
SGXUV2X — KE4
SGX7701
SBN1125
SBN1153
© |SBC668
0 | SBC668—1
© |SGXUV2X— SES
So)
®
15(EK,XL,XA]
15 (other)
16
17 Except[XL]
18(XAj}only
SGXUV2X — KE5
SKUUV2X — SX
SKUUV2X ~ SE
SHS2481
SBC621
SBC399T
SJJ71B
SBC627
$KC1670S1
SKC1670BB1
SJT347
SMLUV2X — SK
SMLUV4X—KM
SMX475—1
$JS92318
$J$9328B
Front panel Ass'y
(1)
Front panel Ass’y
(1)
Sub panel Ass’y (1)
Sub panel Ass’y (1)
Spacer, Bass,
Treble, Balance (3)
Knob, Volume (1)
Knob, Bass,
Treble, Balance (3)
Button, Muting (1)
Button, Muting (1)
Sub Panel Ass’y (1)
Sub Panel Assy (1)
Bottom Board(W/
Feet) (1)
Bottom Board(W/
Feet) (1)
Foot, Bottom
Board (4)
Button,loudness (1)
Button, Speaker,
tone, subsonic (4)
Jack, Headphone(1)
Button, Power
Cabinet
Cabinet
Holder
Bottom Board
Bottom Board
Insulation Cover,
Transformer (1)
Cover, inlet (1)
Cover, inlet (1)
19 except (XL]
20(XAlonly
21(EGA)
26 (other)
26(EK)
26(XA)
26(XL)
27(XLonly
$JS9231A
$JS9328A
SGP6240B
SGP6240—2A
SGP6240—4A
SGP6240—5A
SGP6240A
SJF4815—1
SJF3059N
SJF3057N
SJP9205—2
SFDACO5E02
SFDACO5G02
SJA168
RJA79ZAK
SHR127
28 SBC165
29 SHR401-1
30 SMP380
SJF3057—5N
SJT783
$JS5331
$J$5523
$JT3321
$JT3513
$J$5327
$JS$5421
$J$5519
SHR301
Insulation Cover ,
AC Inlet (1)
insulation Cover,
AC Outlet
Rear Panel
Rear Panel
Rear Panel
Rear Panel
Rear Panel
Terminal Board,
Speaker
Terminal Board,
{nput
Terminal EXT
Short pin
AC Cord
AC Cord
AC Cord
AC Cord
Bushing, AC Cord
(1)
Button, Speaker
Inpedance
Clip, PCB
Holder, LED
Terminal Board,
Phono
Terminal
Socket, 3p
Socket, 5p
Post, 3p
Post, 5p
Socket, 3p
Socket, 4p
Socket, 5p
Clamper, Read
Wire
SCREWS, WASHERS and NUTS
© |XTB3+8BFZ
)|XTB3+8BFN
(S$) |XSN3+6S
XWA3B
SNE4021
SNE4021
(S; |XTB4+ 10BFN
N8 (S |XTV3+8BFN
N9 XWG3
N10
Nil
N12
N13
N13 K
} |XTB3+ 8BFZ
3} |XTB3+ 14BFN
{S) |XTB3+ 8BFZ
) |SNE2095—4
SNE2095—5
N14[EK, XA, XL]] XSN3+10S
N15(EK, XA, XL]
XWA3B
Tapping, ®3x8 (4)
Tapping, @3 x8 (3)
3x6 (5)
Spring, 43 (5)
Nut, Main Volume
(1)
Nut, Tone Volume
3)
Tapping, @4x 10(4
Tapping, @3x8 (3
Washer, 43 (3
Tapping, @3x8 (2
Tapping, @3 x 14(2
Tapping, @3x8 (9)
Cabinet (4
Cabinet (4
@3x 10
{2
Spring, 63 (2
ACCESSORIES
AL[XA) 4A
A2(EGA)
A2(XA)
A2(other)
SJP9215
SOF12135
SOF12136
$QF12134
Plug (1)
Instruction Book (1)
Instruction Book (1)
Instruction Book (1)