Pioneer A-07 User manual

Service
Manual
STEREO AMPLIFIER
A-07
ORDER NO.
ARP2895
THIS
MANUAL
IS
APPLICABLE
TO
THE
FOLLOWING
MODEL(S)
AND
TYPE(S).
|_
Model
Power
Requirement
A-07
ee
oe
CONTENTS
1. EXPLODED VIEWS, PACKING AND
PARTS LIST o...cccsciscssissssecccccsvcocvcsesasccoecussecscacneacte 2
2. SCHEMATIC AND PCB CONNECTION
DIAGRAMG ..............:ccccsssscsssssssccsessseesecenescseensecsees 8
3. PCB PARTS LIST .................cescssssesecetessnnssesesenees 19
4. BLOCK DIAGRAM ...................:::cccsessssnscreseersenee 23
5. ADJUSTMENTS ...............cccccessssserssececeesssssnsenees 24
6. PANEL FACILITIES ....................:-s:ssssesssessesneeeees 25
7. SPECIFICATIONS ...................scsesscsseceescessesneeteeee 26
PIONEER
ELECTRONIC
CORPORATION
4-1,
Meguro
1-Chome,
Meguro-ku,
Tokyo
153,
Japan
PIONEER
ELECTRONICS
SERVICE
INC.
PO
Box
1760,
Long
Beach,
CA
90801-1760,
U.S.A.
PIONEER
ELECTRONIC
[EUROPE]
N.V.
Haven
1087,
Keetberglaan
1,
9120
Melsele,
Belgium
PIONEER
ELECTRONICS
ASIACENTRE
PTE.
LTD.
501
Orchard
Road,
#10-00
Lane
Crawford
Place,
Singapore
0923
©
PIONEER
ELECTRONIC
CORPORATION
1995
O-FFC MAY. 1995 Printed inJapan

A-07
1. EXPLODED VIEWS, PACKING AND PARTS LIST
NOTES:
®@ Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
® 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.
© Parts marked by “ ®” are not always kept in stock. Their delivery time may be longer than usual or they may be unavailable.
1.1 PARTS LIST
Mark No. Description Parts No. Mark No. Description Parts No.
A 1 Qt TRANSISTOR 2SC3281 NSP 46 AC COAD SPACER ANG1979
A 2 Q2 TRANSISTOR 2SC3281 47 LONG SYAFT ANL7001
A 3. Q3 TRANSISTOR 2SA1302 NSP 48 AC CORD HOLDER AEB1200
A 4 Q4 TRANSISTOR 2SA1302 NSP 49 RUBBER STOPPER AEB1325
A 5 Q5 TRANSISTOR 28C4137 50 NYLON BINDER AEC —093
A 6 Q6 TRANSISTOR 28C4137 NSP 51 COVER AEC — 294
A 7 Q7 TRANSISTOR 28C4137 NSP 52 PCB HOLDER AEC1097
A 8 Q8 TRANSISTOR 28C4137 NSP 53 PCB SPACER AEC1180
A 9 Di DIODE C16P20F NSP 54 BUSH (PLS) AEC1293
A 10 D2 DIODE C16P20F NSP 55 WIRECLIP AEC1388
A 11 D3 DIODE C16P20FR NSP 56 AC CORD CATCHER AEC1397
A 12 D4 DIODE C16P20FR 57 PCB CONNECTOR (PVC) AEC1500
13. Ci ELECTROLYTIC CAPACITOR ACH7024 58 EDGE SADDLE AEC1571
14. C2 ELECTROLYTIC CAPACITOR ACH7024 59 DENKA SHEET AEC1598
15 (C3 ELECTROLYTIC CAPACITOR ACH7025 NSP 60 SPACER AEC1601
16 C4 ELECTROLYTIC CAPACITOR ACH7026 NSP 61 BUSH (PLS) AEC1602
A 17. C5 CAPACITOR (0.01/AC400V) = ACG1003 NSP 62 BUSH (PLS) AEC1603
A 18 C6 CAPACITOR (0.01/AC400V) ACG1003 NSP 63 SPACER AEC1430
A 19 Tl POWER TRANSFORMER ATS7071 64 HOLDER AEC1534
A 20 T2 POWER TRANSFORMER ATS7071 NSP 65 FRAME ANK7015
A 21. RY1 POWER RELAY (12V) ASR1041 66 FRONT PANEL ANB7016
A 22 RY2 POWER RELAY (12V) ASR1041 67 INDICATOR LENS AAK2303
23 GROUND TERMINAL AKE—046 68 SIDE PANEL AMR2606
24 IP SPEAKER TERMINAL AKE7009 69 SIDE PANEL AMR2607
25 1P SPEAKER TERMINAL AKE7010 70 SIDE PANEL AAP7015
26 SHORT PIN PLUG AKM—050 71. +ESCUTCHTEON A AMR7048
A 27. ~FU1 FUSE (T1.6A,250V) AEK — 510 72. ESCUTCHTEON B AMR2701
A 28 FU2 FUSE (T1.6A,250V) AEK —510 73. NAME PLATE VAMIO051
A 29. FU3 FUSE (T250mA,250V) AEK — 503 74 ROTARY KNOBL AAB7056
A 30. FU4 FUSE (T500mA,250V) AEK — 505 75 ROTARY KNOB M AAB7057
A 31 AC POWER CORD ADG1093 76 REMOCON WINDOW AAK2457
NSP 32 SIDE FRAME ANAI218 NSP 77 BONNET CASE ANE7063
33. TRANS FRAME ANA7022 78 SCREW (STEEL) ABA1011
NSP 34 ANGUL ANA7023 79 SCREW ABA—298
35 REAR PANEL (MET) ANC7238 80 SCREW (STEEL) ABA1004
36 PANEL STAY (MET) AND7002 81 SCREW (STEEL) ABA1007
NSP 37. BOTTOM PLATE (MET) ANF7003 82. BINDER AEP—215
NSP 38 HEAT SINK ANH7017 83 SCREW (STEEL) ABA1053
39 FOOT AMR1159 84 SCREW ABA1024
NSP 40 AC CORD COVER ANG7034 85 SCREW (STEEL) ABA1047
NSP 41 VOLUME HOLDER ANG1661 86 SCREW (STEEL) ABA1050
42 WASHER (COPPER) ABE1001 87 SCREW ABA1066
43. EARTH PLATE ANG1968 88 SCREW ABA1156
NSP 44 HEATSINK HOLDER (MET) ANG7033 89 SCREW (STEEL) ABA1192
45 BINDER AEC — 826 90 SCREW (STEEL) ABA1193

NSP
>>
NSP
NSP
NSP
NSP
NSP
Mark No. Description Parts No.
91 SCREW (STEEL) ABA1194
92 SCREW (STEEL) ABA1208
93 SCREW 4X6 (FE) ABA7011
94 SAPORT POST ABA1214
95 SCREW BBZ40P120FZK
96 SCREW IPZ30P120FCU
97 SPACER AEEI1013
98 NUT NK70FCU
99 NUT NK90FCU
100 SH SCREW PBA1049
101 SCREW VCZ30P060FMC
102. SCREW VMZ30P060FCU
103 WASHER WCO060FUC
104 WASHER WHS50FMC
105 INPUT L ASSY AWZ5958
106 INPUT R ASSY AWZ5959
107 MOTOR FUNCTION ASSY AWZ5897
108 GAIN SEL ASSY AWZ5960
109 LED ASSY AWZ5740
110 POWER SW ASSY AWZ5961
111 MOTHER ASSY AWZ5965
112. DIODE L ASSY AWZ5963
113. DIODE R ASSY AWZ5964
114. AC ASSY AWZ5966
115 SUB TRANS 1 ASSY AWZ5957
116 PCB SPACER AEC7020
117 SCREW (STEEL) ABA1006
118 MOTOR VOL ASSY AWZ5896
119 M-CON ASSY AWZ5898
120 REC SEL ASSY AWZ5899
121 EYE ASSY AWZ5730
122. SUB TRANS 2 ASSY AWZ5731
123. RI CARBON FILM RESISTOR RD1/4PMF4R7J
124 R2 CARBON FILM RESISTOR RD1/4PMF4R7J
125. C7 POLYESTER CAPACITOR CQMXA472J100
126 C8 POLYESTER CAPACITOR CQMXA472J100
127. C9 POLYESTER CAPACITOR CQMXA472J100
128 C10 POLYESTER CAPACITOR CQMXA472J100
129 Ji 3P WIRE 250 ADX2150
130 =J2 3P WIRE 250 ADX2150
131 Y27 LEAD WIRE ADX2166
132. SHEET AEE1014
133. HOLDER AMR1178
134 INSTRUCTION MANUAL ARE7053
(English/German/French/Italian/
Swedish/Dutch/Spanish/Portuguese)
135 SIDEPADR AHA2042
136 SIDE PADL AHA2043
137. PACKING CASE AHD7181
138 PACKING SHEET AHG1163
139 WARRANTY CARD ARW — 088
140 REMO-CON (CU— A017) AXD7060
141 BATTERY (R03, AAA) AEX —021
142. VINYL POUCH AHG — 027
143. LITERATURE BAG AHG~—117
144 BATTERY COVOR AZN7234
| A-07
Mark No. Description Parts No.
NSP 145 FUSE LAVEL AAX1585
NSP 146 FUSE LAVEL AAX1573
NSP 147 FUSE LAVEL AAX1582

A-07
1.2 PACKING

(Front panel section)
/
NOTE : Screws adjacent to W mark on
are used for disassembly.

A-07
ec
9
5
3
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@
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®
c
(Heat sink section)
)¥ mark on product
sembly.

A-07
2. SCHEMATIC AND PCB CONNECTION DIAGRAMS
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NOTE FOR SCHEMATIC DIAGRAMS
,
(Type 1,4)
. When ordering service parts, be sure to refer to
“PARTS LIST of EXPLODED VIEWS” or “PCB
PARTS LIST”.
. Since these are basic circuits, some parts of them or the
values of some components may be changed for improve-
ment.
. RESISTORS:
Unit: k:kQ, M:MQ, or Q unless otherwise noted.
Rated power: 1/4W, 1/6W, 1/8W, 1/10W unless otherwise
noted.
Tolerance: (F): +1%, (G): +2%, (K): 10%, (M): +20% or +5% un-
less otherwise noted.
. CAPACITORS:
Unit: p:pF or uF unless otherwise noted.
Ratings: capacitor (uF)/ voltage (V) uniess otherwise noted.
Rated voitage: 50V except for electrolytic capacitors.
. COILS:
Unit: m:mH or pH unless otherwise noted.
. VOLTAGE AND CURRENT:
: Signal voltage at rated output.
TJ or -v:
DC voltage (V) at no input signai unless otherwise noted.
Value in{ _) is DC voltage at rated power.
© mA or > mA:
DC current at no input signal unless otherwise noted.
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. : Measurement point.
* The & mark found on some component parts indicates the im-
portance of the safety factor of the parts. Therefore, when re-
placing, be sure to use parts of identical designation.
8. SCH—O ON THE SCHEMATIC DIAGRAM:
* SCH—Q indicates the drawing number of the schematic dia-
gram. (SCH stands for schematic diagram.)
Zz
9. SWITCHES (Underline indicates switch position):
GAIN SEL ASSY
$601 : GAIN SELECTOR
POWER SW ASSY
$902 : POWER STANDBY/ON OFF
MOTOR FUNCTION ASSY
$971 : INPUT SELECTOR
REC SEL ASSY
$981 : REC OUT
OVERALL, MOTHER ASSY, DIODE L ASSY, DIODE R ASSY, AC ASSY,
SUB TRANS 1 ASSY, SUB TRANS 2 ASSY, EYE ASSY, INPUT L ASSY,
INPUT R ASSY, GAIN SEL ASSY, LED ASSY, POWER SW ASSY,
SCH-1
MOTOR VOL ASSY, MOTOR FUCTION ASSY, REC SEL ASSY
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schematic
AW7Laro8QRB
TH
oF
Qa’
4
te
ets
diagrams.
i
one
a
«O°
2.
A
comparison
between
the
main
parts
of
PCB
and
schematic
0
diagrams
is
shown
below.
x be)
=
a
Symbol
in
PCB}
Symbol
in
Schematic
:
:
5
2
Sues
3
3
a6o1
z
2
ied
‘©
x
72504
=]
io)
is
9
-
EO
o
x
x
ve
:
Pa
0
bs
Transistor
ig
a
S
M-CON
oe
a
:
5
ifs”
a
oy
>
g
te
z
5
B i
3°
By
TO
TO
M-CON
ASSY
J17
oS
a
:
ee
M—CON
aso1
ago2
ago3
w
awe
gg
ASSY
¥
a8
CN1002
2
&
a:
a2 O! oe
_
06
s20|
B.
as
LED
ASSY
esl:
|
a
Capacitor
ae
:
a4
4
Tee
ake’
S
:
;
(Polarized)
o<
yy
Fi
L
oak
“9
oo.8,
:
PO
oo.
"Pi
ES
ope
Shop
oh
;
Mog
gf
Seoes
2
3.
The
transistor
terminal
marked
with
E
or
shows
the
emitter.
at
Es]
flee
ee
4.
The
diode
terminal
marked
with®
orC>shows
cathode
side
See
°
5.
The
capacitor
terminal
marked
with
©
orC
shows
negative
Z
zo
1C651
Q651
terminal.
6.The
parts
mounted
on
each
PCB
include
all
Q931
Q932
a933
0934
necessary
parts
for
several
destinations.
For
further
information
for
respective
destinations,
be
sure
to
check
with
the
schematic
diagram.
® This diagram is viewed from the mounted parts side.
14
40
11
1
Pd
N
wean
o ’
=e
©
a
=
I

A-07 | 1 I 2 I 3 I 4 | 5 [ 6
2.2 M-CON ASSEMBLY
M-CON ASSY AWZ5898
(ars
ttt
Cn2008A15
ane
TO MOTOR FUNK ASSY J12 (~SCH-—1)
hae eeee
(4SCH-1)
cm1001
[| ye Se
recs
TO INPUT R ASSY CN352
© 1}
9 =! 24 | 6A re 34 > 15 On On Ha
§
2satode-T ST uw :
@ i019
At atm 2 b
01007 YD -——f + |
=A
ER
HF
a
asca@
g
pr]
= fre
Nn a
hd o
Bie
=
&|
+H
ee
OOOO
[OOOO
IO
@OO
©
6
aw
ULE
AKT 1025 I AKTIO77 j ou002 cs
TO SUB TRANS2 TO GAIN TO MOTHER ASSY
ASSY CN651 SEL ASSY CN105S (—SCH-1)
(-SCH-1) CN601
Ls
ar
(-SCH—1
)
= > 7)
2 2 2e
OWDOOOO®
eS
TO
POWER
SW
ASSY
.
CN901 (+SCH-1) SCH 2
1
]
2
I
3
]
4
]
5
|
6
15

® This diagram is viewed from the mounted parts side.
M-CON ASSY
TO
S12
TO
PCB-—
INPUT R am MOTOR FUNC
ASSY ASSY
CN352 J12
TO
ASSY : : TO
CN105
J5)
SSS
S6o
Veys
SUB
TRANS
2
= Se ee ASSY
Ee \ ig eR BOR S
CES
E78
ro,
—Z
CN651
TO Or ‘ 4 . =] 217 Sues
GAIN
SEL
Zi
SP
2%
Sa
ASSY =e TO
CN6O1 POW SW
ASSY
CN901
t
Pao
0i@18..:
183Ge
0
& sid si :
b
Seles)
eee ee
ANP 1810—-C
Q1030
Q1021
Q1024
Q1026
Q1028
a1029
1027
@1013
a1003
al007
a1008
Q1009
Q1018 Q1017
Q1023 Q1012
Q1025
a1022
qai002
Q1006
1C1002
Q@1010
Q1019
Q1016
Q1011
1€1001
Q1001
Q1005
Q1020 Q101s
1€1003
Q1004
Q1014

A-07 |
Mark No. Description Parts No. Mark
REC SEL ASSY
SWITCHES AND RELAYS
S981
INPUT L ASSY
SEMICONDUCTORS
D301 — D307
SWITCHES AND RELAYS
RY301 —~RY307
CAPACITORS
C301—C305
C306
RESISTORS
R308,R309
Other Resistors
OTHERS
CN303—CN305_ 1P PINJACK
CN306,CN307 2P PINJACK
CABLE HOLDER
INPUT R ASSY
SEMICONDUCTORS
D35i—D357
SWITCHES AND RELAYS
RY351 —RY357
CAPACITORS
C351—C355
C356
RESISTORS
R358,R359
Other Resistors
OTHERS
CN353—CN355 1P PINJACK
CN356,CN357 2P PINJACK
CABLE HOLDER
GAIN SEL ASSY
SEMICONDUCTORS
Q60!
D601,D602
SWITCHES AND RELAYS
$60)
RESISTORS
All Resistors
POWER SW ASSY
SEMICONDUCTORS
Q903
Q90!
Q902
SWITCHES AND RELAYS
$902
20
ASD7004
HSS104 —02
ASR1046
CCCSL221J50
CEAS220MS0
RDR1/4PM102J
RD1/8PMUDO0I
AKB1189
AKB1191
AKT1023
HSS104—02
ASR1046
CCCSL221550
CEAS220M50
RDR1/4PM102J
RD1/8PMUDIL)
AKB1I189
AKB1I191
AKT1023
XDC124ES
RD6.8ESB
ASD7004
RDI/8PMLIDIO
2SB1340
XDA143ES
XDC143ES
ASD7004
Mark No. Description Parts No. Mark
CAPACITORS
€901,C902 CEAS100MS50
RESISTORS
R902 RD1/4PM122J
Other Resistors
EYE ASSY
SEMICONDUCTORS
Q931 —Q933
Q934
D934
D931 —D933
CAPACITORS
C932
C934
C931
C933
RESISTORS
All Resistors
OTHERS
REMOTE RECEIVER UNIT
SUB TRANS 2 ASSY
SEMICONDUCTORS
1C651
Q651
D651 — D655
COILS AND FILTERS
A L651,L652
TRANSFORMERS
A T651
CAPACITORS
C65!
C655 (47/25V)
C652
C653
C654
RESISTORS
A R655
A R651
Other Resistors
OTHERS
SCREW
HEAT SINK M
CN65t CONNECTOR (4P)
SUB TRANS 1 ASSY
SEMICONDUCTORS
1C631
D637
D631 — D636
COILS AND FILTERS
A L633,L634
TRANSFORMERS
A 7631
RD1/8PMOO0D
2S8C2458
XDC143ES
AEL1065
HSS104 —02
CEAS100M50
CKCYB102K50
CKCYF103Z50
CKPUYB101K50
RD1/8PMOIOIO
AXX1023
NJM78MS6FAS
2SA 1837
$5688G
ATX1012
ATT7010
ACH1237
ACH1277
CEASO10M50
CEAS101M25
CEAS471M35
RFA1/4PS180]
RFA1/4PS4R7}
RD1/4PMOIDOI
ABA—298
ANH — 697
KPE4
NJM7812FAS
HSS104~02
S5688G
ATX1012
ATT7010

A-07
3. PCB PARTS LIST
NOTES:
@ Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
@
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.
© Parts marked by “ ©” are not always kept in stock. Their delivery time may be longer than usual or they may be unavailable.
@
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%).
560Q
—
SOX
10’
©
SO]
crrststerscerececcsccsceecereeesseeesensessarees
RDI/8PM
51612
|
47kQ
—
47
X
10°
a
y
&
MSS
eee
RDI/4PS
(4|7]3]
0.52
—
ORS
vtecreeceeceeseneeesueeseeeesesseeeseecereeeeseeeeeneeeeeaensaees
RN2H
lolRIs]x
1Q
—
O10
ceteeseceecceeeeecceenceeesscesceeesaenseasseneeeseceneesenseeees
RSIP
fol7Jolx
Ex.2
When
there
are
3
effective
digits
(such
as
in
high
precision
metal
film
resistors).
5.62kQ
—
562X109
—>
SOD]
cverererceeceeceectccecceeeeceesesesesseeeeenaes
RN1/4PC|516|2|7|F
Mark
No.
Description
Parts
No.
Mark
Mark
No.
Description
Parts
No.
Mark
LIST
OF
ASSEMBLIES
M—CON
ASSY
NSP CONTROL ASSY SEMICONDUCTORS
LED
ASSY
AWZ5740
1C1001
PDSI65A
MOTOR
VOL
ASSY
AWZ5896
1C1002,1C1003
TA7291S
MOTOR
FUNCTION
ASSY
AWZ5897
Q1007
2SA1048
M-—CON
ASSY
AWZ5898
Q1016
28C2235
Q1008 — Q1012,Q1014,Q1015 2SC2458
REC SEL ASSY AWZ5899
INPUT
L
ASSY
AWZ5958
Q1017—
Q1019,Q1021
—Q1027,Q1030
2SC2458
INPUT
R
ASSY
AWZ5959
Q1005
XDA124ES
GAIN
SEL
ASSY
AWZ5960
Q1020
XDA143ES
POWER
SW
ASSY
AWZ5961
Q1001
—
Q1004,Q1006,Q1013
XDC124ES
Q1028,Q1029 XDC143ES
NSP AF ASSY
EYE ASSY AWZ5730 D1001 — D1014,D1016 — D1024,D1027 HSS104—02
SUB
TRANS
2
ASSY
AWZ5731
D1025
RD2.0ESB
SUB
TRANS
1
ASSY
AWZ5957
D1026
RD2.7ESB
DIODE
L
ASSY
AWZ5963
D1015
RD6.2ESB
DIODE R ASSY AWZ5964 COILS AND FILTERS
MOTHER
ASSY
AWZ5965
L1001
LAU220]
AC ASSY AWZ5966
CAPACITORS
C1004 ACH1246
LED ASSY C1012 CCCSL271550
C1019 CEANP4R7M50
SEMICONDUCTORS
C1006,C
1029
CEAS010M50
D621
AEL1116
C1008,C1021,C1034
CEAS100M50
MOTOR VOL ASSY C1020,C1022 — C1027 CEAS101M25
C1005 CEAS2R2M50
RESISTORS €1001,C1002,C1010,C1011,C1035 CEAS470M25
VR951
ACX1045
C€1007,C1028
CEAS4R7MS50
C1009 CEASR22M50
OTHERS
CN951
CONNECTOR
(3P)
KPE3
C1030
CKCYB102K50
C1003 CKCYF103Z50
MOTOR FUNCTION ASSY C1031 —C1033 CKCYF473Z50
C1036 CKCYX104M25
SWITCHES
AND
RELAYS
C1013—C1018
CKPUYB271K50
$971 ASD7005
RESISTORS
RESISTORS
All
Resistors
RD1/sPMOIOCy
All Resistors RDi/8sPMLILID
OTHERS
OTHERS
CABLE
HOLDER
(4P)
AKT1077
13
JUMPER
WIRE
D15A03—
100-2651
CABLE
HOLDER
(7P)
AKT1080
X1001 CERAMIC RESONATOR ASS1018
CN1002 JUMPER CONNECTOR KPC6
CN1001 CONNECTOR (9P) KPC9
19

Mark No. Description Parts No.
CAPACITORS
C631 ACH1237
C634 (10/25V) ACH7029
C635 CEAS100M50
C636 CEAS101M50
C632 CEAS222M35
C637 CEASR22M50
RESISTORS
R631 RD1/2PMF010J
A R632 RFA1/4PS4R7J
A R633,R634 RS3LMF221J
Other Resistors RD1/8PMCILIZ
OTHERS
SCREW ABA—298
H631,H632 FUSE CLIP AKR1003
HEAT SINK ANH—880
CN631 CONNECTOR (3P) KPE3
CN632 CONNECTOR (4P) KPE4
DIODE L ASSY
CAPACITORS
C702 (0.1) ACE1054
DIODE R ASSY
CAPACITORS
C712 (0.1) ACE1054
MOTHER ASSY
SEMICONDUCTORS
1C221,1C222 NJMS5534DD
1C101,1C102 OPA604AP—A
1C181,1C182 PS2501 —1KL
Q191,Q192 2SA1115
Q101,Q102,Q107,Q108 2SA1145
Q113,Q114,Q117,Q118 2SA1145
Q123,Q124,Q129,Q130 2SA1145
Q133,Q134 2SA1145
Q109,Q110 2S8A1238
Q143,Q144,Q195,Q196 2SA1837
Q229,Q230 2S8A1837
Q197,Q198 2SA970
Q139,Q140 2SA985
Q181—Q186,Q193,Q194 2SC2240
Q223—Q226 2SC2240
Q137,Q138 28C2275
Q189,Q190 2SC2458
Q103 —Q106,Q115,Q116 28C2705
Q119—Q122,Q131,Q132 2SC2705
Q135,Q136 2SC2705
Q111,Q112 28C3065
Q141,Q142,Q227,Q228 28C4793
Q221,Q222 2SK389
Q187,Q188 XDC143ES
D101 —D104,D191,D192 AEL1099
D109—D115,D181 —D184 HSS104—02
D187,D188,D225 ~D229 HSS104 —02
D189,D190 RDISESB2
D105—D108,D221 — D224 RDI8ESB2
D185,D186 RD24ESB2
Mark
A-07
Mark No. Description Parts No. Mark
D193,D194 $5688G
COILS AND FILTERS
L221,L222 (270) ATH1010
SWITCHES AND RELAYS
RY181,RY182 ASR~-112
RY101 —RY103,RY221 ASR1046
CAPACITORS
C125,C126 CCCSL181J50
C223,C224 CCCSL221350
C221,C222 CCCSL270350
C253,C254 CCCSL390J50
C111—C118,C185,C186 CEAS101M25
C243—C250 CEAS101M25
C227,C228 CEAS221M16
C183,C184 CEAS471M16
C181,C182,C239,C240 CEAS4R7M50
C189,C190 CFTYA103J50
C187,C188 CFTYA105J50
C231,C232 CFTYA123J50
C237,C238 CFTYA18350
C127—C130 CFTYA224J50
C105,C106 CFTYA225J50
C235,C236 CFTYA333J50
C131—C134,C251,C252 CKCYF103Z50
C123,C124 CMA 100D500
C107—C110,C229,C230 CMA2203500
C233,C234 CQPA2725100
C225,C226,C241,C242 CQPA472J100
C101,C102 CQSXA221J3160
RESISTORS
R165—R168 (0.22/5W) ACN7004
R169,R170 (4.7/2W) ACN7006
R151,R152,R179,R180 RD1/2PM2233
A R281,R282,R289,R290 RD1/2PMF010)
A R1I87,R188 RD1/2PMF101J)
A R181,R182 RD1/2PMF3925
R129,R130,R133—R136 RD1/4PM1013
R189,R190 RD1/4PM103)
R131,R132 RD1/4PM1213
R185,R186 RD1/4PM153)
R225,R226 RDi/4PM182J
R115,R116 RD1/4PM2215
R191,R192 RD1/4PM222)
R237,R238 RD1/4?M2253
R121—R128 RD1/4?M270)
R145,R146 RD1/4P>M274)
R147—R150 RD1/4PM331J
R275—R278 RD1/4?M332)
R141—R144,R153—R160 RD1/4?M1470)
R207,R208 RD1/4PN1470)
R117—R120 RD1/4?n/1472)
R171 —R174,R205,R206 RD1/4?mM1473)
R183,R184 RD1/4PM821)
R295,R296 RDR12PM271)
R299,R300 RDR12PM472]

A-07
Mark No. Description Parts No. Mark
R297,R298 RDR1/2PM680J
R109,R110 RDR1/2PM821J
R113,R114 RDR1/4PMi05)
R101,R102 RDR1/4PM221)
R273,R274 RDR1/4PM274)
R271,R272 RDR1/4PM562J
A R161 —R164,R175—R178 RFA1/4PS4R7J
A R259—R262 RFA 1/4PS4R7J
R241,R242 RN1/4PC1000F
R243,R244 RN1/4PC5101F
R245,R246 RN1/4PC6202F
A R209—R214,R283—R286 RSILMF271J
A
R287,R288
RS1PMF221J)
VR101,VR102
(100/0.5W)
ACP1077
VR105,VR106
(1/0.5W)
ACP1078
VR103
(502)
ACW7002
Other Resistors RD1/8PMOOI0
OTHERS
SCREW (STEEL) ABA1009
CN221,CN222 PIN JACK (1P) AKB1196
STAR TERMINAL A AKE1028
AC ASSY
CAPACITORS
A C801 (0.01/400V) ACG1003
OTHERS
H801~H806 FUSE CLIP AKR1003
22

4. BLOCK DIAGRAM
TUNER O
Wide Range Linear Circuit Ver.5
PLAY O
TAPE1
REC ‘e O™O
O™O
'
1
O™~O
PLAY {©
O
TAPE2
OTHER CHANNELS
CONTROL BLOCK
23

A-07 |
5. ADJUSTMENTS
. Connect the measurement equipment.
. Set VR105 (VR106) for DC balance adjustment to the center position.
. Turn VR101 (VR102) for idle current adjustment counterclockwise as far as it will go.
. Turn the VOLUME control on the front panel counterclockwise as far as it will go.
. Turn on the power.
. Adjust VR101 (VR102) so that @ (Q) is +22 mV+5 mV with respect to ® (®).
. Adjust VR105 (VR106) so that © (®) is 0 mV +3 mV with respect to the negative terminal of a Lch (Rch) speaker.
SI ADUn PWN
Note: Adjust five minutes or more after the power is turned on.
MOTHER ASSY
Connection and Adjustment Point
24

A-07
7. SPECIFICATIONS
Amplifier Section
DIN Continuous power output (both channels driven at 1 kHz)
THD: 1.0%; 82 vescsdicetesiesNitecesssibeiveccdactseseeedaeee 80 W + 80 W
VAD 120%; 4 ies sas cek cencehensGsutss ec keen lesdadones 120 W + 120 W
Signal-to-Noise ratio (DIN, continuous power/50 mW)
PHONO (MM) uuu... cc ccccscccescesccesnssseesssseessecaecesseens 70 dB/65 dB*
CD, TUNER, TAPE 1, TAPE 2, LINE ............0006 95 dB/67 dB*
Total harmonic distortion*
20 Hz to 20 kHz, 35 W, 8 Q2 oo. eccccscecseeseeteeeeeeseneeees 0.01 %*
Input sensitivity/impedance
PHONO (MM) ..0....cccccecsecesecsseesesecseecsssenseceneensseaees 2.8 mV/50 kQ
CD, TUNER, TAPE 1, TAPE 2, LINE .............05 200 mV/50 kQ
Damping factor
(1 kHz/20 Hz to 20 KHz), 8 02 ooo ccceeseeeereeetereeees 350/300
Frequency response
PHONO (MM). cee cececseeeeeesetsenees 20 Hz to 20 kHz +0.3 dB
BUX, cess biscdas 5 Hz to 400 kHz *°: dB
Output level/impedance
TAPE? REC wiih i ccscieocietisccieee fasted oxeceenavusnonee antics 200 mV/1 kQ
@ Above specifications are for when power supply is 230 V.
26
Power Supply/Miscellaneous
Power Requirements ................ a.c. 220 — 230 Volts, 50/60 Hz
Power Consumption ........ccccccccccccsecsessccecessececusecsaccenseees 600 W
Dimensions .........cceeeeeeeerees 440 (W) x 476 (D) x 163 (H) mm
Weight (without package) 00.0.0... ec cccessceessscecsseeseseeeees 18.4 kg
Accessories
Operating INStructiONS ooo... ce cescesereeesseeeeeeesessessatecseeenerees 1
Remote control unit ....... walt
Batteries (IEC AAA/RO3)
NOTE:
Specifications and design are subject to possible modification
without notice, due to improvements.
* Measured by Audio Spectrum Analyzer.

6. PANEL FACILITIES
FRONT PANEL
1: Remote control sensor window
2: POWER STANDBY/ON OFF switch
OFF : When set to the OFF position, the main power
flow is cut and the unit is no longer fully
operational.
STANOBY/ON : When set to the STANDBY/ON position, power is
supplied and the unit becomes operational. The
unit can be switched between STANDBY and ON
via remote control unit.
3 STANDBY indicator
Lights to indicate standby; goes out when POWER switch of the
remote control unit is pushed.
When in STANDBY, power to the audio circuitry is cut. The
control circuit however remains powered, so that the remote
control operation is still possible.
4:GAIN SELECTOR
This enables 2-step power amp gain switching between 26 dB
and 40 dB. 26 dB is the usual setting for audio reproduction with
high S/N ratio. Switch to 40 dB if volume level is insufficient.
NOTE:
if you switch from 26 dB to 40 dB during operation, volume level
suddenly becomes very high. When switching from 26 dB to 40 dB,
be careful the volume level setting isn’t too high.
5. VOLUME knob
Adjusts volume level.
6: Power indicator
This stays in orange for 6 seconds after switching ON and then
turns red. The sound is muted while in orange.
‘7, INPUT SELECTOR
Use this to select between TAPE 2/CDR, TAPE 1/DAT, CD,
PHONO, TUNER, and LINE, depending on which component
you want to listen to. Because input switching is by relay, there's
no sound for about 1 second after switching.
8 REC OUT switch
Switch this ON, and the source selected with the input selector
is output through the REC OUT jacks. However, if you select
TAPE 1/DAT there is no output from the TAPE 1/REC jacks, and
if you select TAPE 2/COR there is no output from the TAPE 2/REC
jacks.
1 SPEAKERS terminals (right channel)
2 LINE jack (right)
3 TUNER jack (right)
4 CD jack (right)
5 TAPE 1 PLAY/REC jacks (right)
6 TAPE 2 PLAY/REC jacks (right)
7: PHONO jack (right)
8 PHONO jack (left)
ED
(6)
Ko}
Oy <
+
©
7s
Oa
cenatadieiieeee
cael
ss
|
REAR
PANEL
|
9 TAPE 2 PLAY/REC jacks (left)
10. TAPE 1 PLAY/REC jacks (left)
11.CD jack (left)
12 TUNER jack (left)
13 LINE jack (left)
14 SPEAKERS terminals (left channel)
15; Power cord
Connect this cord to an AC wail socket.
16 GND (Turntable ground terminal)
A-07
25