Sanyo DCA 200UM User manual

SANYO
STEREO
AMPLIFIER
DCA
200UM
SERVICE
MANUAL

SPECIFICATIONS
POWER
AMPLIFIER
SECTION
Continuous
Power
Output:
Amplifier
load
at
4
ohms
20W/20W
at8
ohms
18W/18W
(1
KHz,
each
channel
driven)
Amplifier
load
at
4
ohms
16W/16W
at8
ohms
15W/15W
(1
KHz,
both
channel
driven)
Power
Output
in
the
range
of
20
to
20
KHz:
Amplifier
load
at
4
ohms
13W/13W
at8
ohms)
13W/13W
(Both
channel
driven)
Total
Harmonic
Distortion:
Less
than
0.8%
at
Rated
Output
(Amplifier
load
at
8
ohms)
Less
than
0.1%
at
1W/ch.
Inter
Modulation
Distortion:
Less
than
0.8%
at
Rated
Output
(Amplifier
load
at
8
ohms)
Less
than
0.1%
at
1
W/ch.
Power
Bandwidth
(IHF):
20
to
70
KHz
(Both
channel
driven)
Frequency
Response:
Input
Sensitivity/Impedance:
Speaker
Impedance:
Damping
Factor:
Signal
to
Noise
Ratio:
25
to
80
KHz
+3
dB
Accepts
4
ohms
to
16
ohms
More
than
30
(1
KHz,
8
ohms)
More
than
110
dB
(IHF,
short
circuit
A
network)
0.3mV
(at
8
ohms)
Less
than
0.8
mV
(8
ohms,
pre
&
power
amplifier)
Residual
Hum
and
Noise:
PRE
AMPLIFIER
SECTION
input
Sensitivity/Impedance:
ADJUSTMENT
ADJUSTMENT
OF
MAIN
AMP
P.C.
BOARD
BEFORE
ADJUSTMENT
1.
Pull
out
the
PRE
OUT/MAIN
!N
connector.
2.
After
the
power
switch
is
turned
ON,
wait
a
few
minutes
before
adjustment,
to
be
sure
of
the
most
stable
operation.
3.
Connect
dummy
foad
resistors
(892)
to
the
speaker
terminals.
4.
Tool
to
be
provided.
Electronic
Voltmeter,
or
DC
V.T.V.M.
or
Circuit
Tester
(Input
impedance:
More
than
50
K2/V)
(A)
MID-POINT
POTENTIAL
ADJUSTMENT
Set
the
voltage
between
the
speaker
terminal
and
ground
(Chassis)
to
OV
+0.01V
with
VR
01
(VR
02)
{(B)
IDLING
CURRENT
ADJUSTMENT
Turn
the
VR
03
(VR
04)
so
that
the
idling
current
may
become
35mA
...
Measure
the
voltage
of
the
both
sides
of
the
R91
(R92)
resistor
(0.47Q)
and
set
the
VR
03
(VR
04)
so
that
the
value
may
become
0.018V
+0.001V.
Note:
Polarity
...
Emitter
of
the
Q23
(Q24)
.....
(+)
Wid
-COlNE
eieibeccivaieseuiad
(—)
(C)
Repeat
seps
A
B
no
further
improvement
is
possible.
Note:
a.
Turn
the
semi-fixed
variable
resistor
slowly
during
adjustment;
b.
Be
careful
of
the
polarity
of
each
measurement
point.
(1
KHz,
at
rated
power)
PHONO
2.5mV/S0K
ohms
TUNER
150mV/50K
ohms
AUX
150mV/50K
ohms
TAPE,
1,2
150mV/50K
ohms
MIC
:
2.5mV/50K
ohms
Phono
Overload
Input:
Mic
Overload
Input:
Signal
to
Noise
Ratio:
Output
Level/impedance:
Frequency
Response:
PHONO
TUNER/TAPE/AUX
MIC
Tone
Controls:
Bass
Treble
Filter
Control:
High
Filter:
Low
Filter:
Loundness
Control:
(Power
output
level
at
—30dB)
ALL
OVER
THE
SECTION
Power
Requirements:
UM
Version
(Switchable)
Power
Consumption:
AC
Outlet:
Dimensions:
RMS
180mV
Max.
Peak
to
Peak
420mV
Max.
RMS
150mV
Max.
PHONO
More
than
70
dB
(IHF,
A
network)
TUNER
More
than
90
dB
(tHE,
A
network)
AUX
:
More
than
90
dB
(IHF,
A
network)
TAPE
More
than
90
dB
(tHE,
A
network)
MIC
More
than
70
dB
((HF,
A
network)
TAPE
REC
140mV/1
K
ohms
(RCA
pin
jacks)
TAPE
REC
35mV/80K
ohms
(DIN)
RIAA
Standard
Equalization
30
to
15K
Hz
+0.5
dB
25
to
80K
Hz
+0,
—1
dB
70
to
14K
Hz
+0,
—1
dB
+10
dB
at
100
Hz
+10
dB
at
10K
Hz
5K
Hz
(—6
dB/oct)
70
Hz
(—6
dB/oct)
+8
dB
at
100
Hz
+3
dB
at
10K
Hz
110V,
120V,
220V
or
240V,
50/60Hz
47
watts
at
full
power
Two
Switched
(150
watts
max.)
One
Unswitched
(200
watts
max.}
Width
405
mm
Deptch
365
mm
Height
185
mm

EXPLODED
VIEW

PARTS
LIST
PACKING
;
131
6
1139
55309
131
62119
01550
131
6
3009
19950
131
6
3009
19960
131
6
3009
20730
131
6
3069
16150
131
6
4559
10700
Box
Corrugate
Exp.
Bag
Polyethylene
Exp.
Pad,
Side
Pad,
Top
Pad,
Rear
Patching
Sheet
Manufacturing
No.
Wa
A}
wo
=
ACCESSORY
13162719
10600
Bag
Fan
1
13164119
41704
|
Explanatory
Booklet
1
CABINET
13121105
15402
131
2
1410
13301
131
2
1801
12900
131
25205
15400
131
27103
19800
131
2
7103
19900
APPEARANCE
131
0
1001
31301
131
0
1001
31402
131
01001
31501
13101016
19901
131
2
1203
31601
131
2
1504
10902
131
26113
19000
131
26113
19100
131
26113
19200
131
2
1601
34800
131
2
1601
34900
Plate,
Bottom
Cover
Leg
Cushion
Label
Caution
Label
Knob
Assy,
Main
VR
Knob
Assy,
Function,
Balance,
Bass,
Treble
Knob
Assy,
Mic
VR
Panel
Decorate
Assy
Pane!
Control
Plate
Sign
Lamp
Shelter
Shelter
Shelter
Knob,
Power
SW
Knob,
Push
SW
ff
=
CO
nad
wed
A}
aed
ot
od
=
131
2
3101
29900
131
2
3101
30000
131
2
3101
36100
131
2
3305
18400
131
2
3306
19306
131
2
3308
11900
131
2
3308
12100
131
23617
14700
131
2
4208
20400
131
25205
15300
131
2
5206
12500
131
26107
11600
131
26111
12500
131
26111
14300
131
2
7103
20900
131
2
7103
20902
131
2
7104
00600
4
2229
24650
4
2319
22520
4
2319
23950
4
2319
24040
4
2319
24500
4
2319
34090
4
2349
20250
4
2349
20410
4
2349
21200
4
2359
20190
4
2359
21021
4
2359
21670
4
2359
22010
4
2359
22022
4
2359
22031
4
2379
21060
4
2379
21260
4
2379
21470
4
2439
20521
46129
20219
4
2519
23700
131
2
3608
11300
ELECTRICAL
PARTS
CHASSIS
Metal
Mount,
Jack
Metal
Mount,
PCB
Metal
Mount
(Voltage
Select)
Panel,
Front
Panel,
Rear
Chassis,
Sub,
Side
Chassis,
Sub,
Center
Metal
Mount,
Trans
Spacer,
Jack
Cushion,
Panei
Rear
Moldplane,
Volume
Piate
Sever,
Mixing
SW
Bushing
Bushing
Label
(Fuse
315mA)
Label
(Fuse
2.0A)
Plate
Pad,
Switch
VR
B-20K
6P
Slide
Switch
Switch
Rotary
:
Switch
Rotary’
SE
PaneaG
Switch
Rotary
4P,
Voltage
Select
Switch,
Push
AC
Power
Fuse
2A,
Main
Power
Fuse
0.315A
Fuse
2A,
Protector
Socket
5P
DIN
Fuse
Holder
Jack,
Mic
Socket,
Phono
4P,
Tape
Socket,
Phono
6P,
Phono
Fuse
Holder,
Protection
Terminal
G
Grand.
Terminal
Lug
5P
Terminal
8P
Power
Cord
Small
Lamp
!ndicator
Power
Trans
Cramp
Wire
NOTES:
1.
Part
orders
must
contain
Model
Number,
Part
Number
and
Description.
2.
Ordering
quantity
of
screws
and/or
resisotrs
must
be
multiple
of
10
pcs.
Aa
NN
os
Bae
AN
eh
A
ae
aN
Om
womens
of)
NMPMN
A
Ae
Ae
-—_

PARTS
LIST
A
ee
ee
AF
PCBASSY
13104001
628000
AF
PC
ASSY
42229242100
VR
IKB
CENTER
VOLTAGE
ADJ,
42229242200
VR
500B
IDLING
ADJ,
42229246600
VR
MN-250K
BALANGE,
42229246700
VR
B-250K
2
VOLUME,
42229246800
VR
B-50K
2
TONE,
C1ARB-106A--
ELECT
10MF
10V
-
C
45,C
46,
C1ARB-107A--
ELECT
100MF_
10V
-
C
41,C
12,C
33,C
34,
C
51,C
52,C
63,
C1CRB-107A--
ELECT
100MF
_‘16V
-
Cc
58,
CICUBMI04A--
TANTAL
G.IMF
35V™M
C
17,C
18,
C1ERB-107A--
ELECT
100MF~
25V
-
Cc
49,C
50,
C1ERB-337A--
ELECT
330MF-
25V
-
CG
41,C
.A2.C
43,C
44,
Cc
64,C
70,
CIERB-474A--
ELECT
0.47MF
25V
-
C
35,C
36,
CIERT-228A--
ELECT
2200MF
25V
-
C
68,C
69,
CIEUBMIOSA--
|
ALSIC
IMF
25V
M
€.01,C
02,C.13,c
14,
Cc
57,
CIEUBM224A--
ALSIC
0.22MF
25V
M
Cc
62,
1
CIEUBM475A--
|
TANTAL
4.7MF
25V
M
Cc
19,C
20,
2
C1HCSK150SL-
CERA
15PF
50V
K
C
47,C
48,
2
CiHCSK
151SL-
CERA
150PF
50V
K
C
53,C
54,
2
CIHCSK251SL-
CERA
250PF
50V
K
Cc
56,
1
C1HCSK
350SL-
CERA
35PF
50V
K C
09,C
10,C
71,C
72,
4
C1iHCSKS500SL-
CERA
50PF
50V
K
Cc
61
1
CIHF
AKI23A--
MYLAR
0.012MF
50V
K
Cc
05,C
06, 2
CIHF
AK332A—
MYLAR
0.0033MF
50V
K
|
C
21,C
22,
2
CiHF
AM104A--
ELECT
4/7MF
25V
™M
C:73,G
74;
2
CIHFAMI54A--
|
MYLAR
0O.15MF
50V
M
Cc
39,C
40,
2
CIHFAM402A--
|
MYLAR
0.004MF
50V
M
|
C
07,C
08,C
60,
3
CIHFAM473A—
|
MYLAR
0.047MF
50V
M
|!
C
25,C
26,
2
CIHFAM683A--
|
MYLAR
0.068MF
50V
M
|
C
23,C
24,
2
C1HRB-105A—
ELECT
1MF
50V
-
C
27,C
28,C
29,C
30,
6
C
31,C
32,
CIHRB~-227A--
ELECT
220MF
50V
-
Cc
67,
1
CIHRB-476A--
ELECT
47MF
50V
-
C
66,
1
C1iHYSK501R--
CERA
500PF
50V
K
C
03,C
04,
2
C1HYSK821R--
CERA
820PF
50V
K
C
37,C
38,C
59,
3
CIVRB-107A--
ELECT
100MF
35V
-
Cc
55
1
CiVRB-227A—
ELECT
220MF
35V
-
C
65,
1
C1IVTBMI06A--
TANTAL
10MF
35VM
C
15,C
16,
2
R2EDSK102A
CARBO
IK
L/Aw
K
R11,R
12,R
49,R
50,
7
R
63,R
64,R110,
R2EDSK103A
CARBO
10K
L/AW
K
R
39,R
40,R
61,R
62,
R2EDSK104A
CARBO
100K
t/4W
K R
03,R
04,R 23,R
24,
R
59,R
60,
R2EDSK105A
CARBO
1M
Law
K
R
15,R
16,R
95,R
96,
R2EDSK
122A
CARBO
1.2K
1/4W
K
R
81,R
82,
NOTES:
1.
Part
orders
must
contain
Model
Number,
Part
Number
and
Description.
2.
Ordering
quantity
of
screws
and/or
resisotrs
must
be
multiple
of
10
pcs.

AF
P.C.B.
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BOTTOM
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PARTS
LIST
Part
No.
AF
PCB
ASSY
R2EDSK
123A
R2EDSK
182A
R2EDSK183A4
R2EDSK222A
R2EDSK224A
R2EDSK271A
R2EDSK272A
R2Z2EDSK273A
R2EDSK274A
R2EDSK331A
R2EDSK
333A
R2ZEDSK391A
R2ZEDSK
392A
R2EDSK
394A
R2EDSK470A
R2E
DSK472A
R2EDSK
473A
R2ZEDSKS61A
R2EDSK562A
R2EDSKS63A
R2EDSK680A
R2EDSK681A
R2EDSK683A
R2EDSK821A
R2EDSK822A
R2HZSKR47A
R3AXPKI152A
R3AXPK271A
TJJ-2SA763--5-
T4IJ-2S5A763--6-
TMM-2SC1312-F-
TMM-2SC1312-G-
10231103006000
10232203006000
13126168112010
13126201211000
20252300019101
20252320131101
20252320132101
2035510069
3792
20355110536400
20355110536500
203551
10536600
20356460514402
20356460514500
20356460514600
20356701175500
20356701
175600
20356800559500
20356800659600
20358220330402
20358220330500
20358220330600
205590204301
10
CARBO
12K
CARBO
1.8K
CARBO
18K
CARBO
2.2K
CARBO
220K
CARBO
270
CARBO
2.7K
|
CARBO
27K
|
CARBO
270K
CARBO
330
|
|
|
|
CARBO
33K
|
CARBO
390
CARBO
3.9K
|
CARBO
390K
|
CARBO
47
“CARBO
47K
|
CARBO
47K
|
CARBO
560
|
CARBO
5.6K
|
CARBO
56K
|
|
|
|
CARBO
68
CARBO
680
CARBO
68K
CARBO
820
CARBO
8.2K
FUSE
0.47
OMF
1.5K
|
OME
270
TRANSISTOR
TRANSISTOR
SC
REW,PAN
25C536
D-FP
25C536E-FP
25C536F-FP
2SB
514D2
|
2SB
514E
2SB
514F
|
2SC
1175E
2SC
1175F
2SA
659E
|
25
A
659F
2SD
330D2
2SD
330E
2SD
330F
DS
430
Description
1/4w
K
1/AW
K
1/4W
K
1/AW
K
1/4W
K
1/4W
K
1/AW
K
1/AW
K
1/4AW
K
1/4AW
K
1/AW
K
1/4W
K
1/AW
K
L/AW
K
1/AW
K
1/AW
K
1/4W
K
1/AW
K
1/AW
K
LAW
K
1/4W
K
1/AW
K
1/AW
K
1/4AW
K
1/AW
K
1//2W
K
iw
K
iw
K
2SA763
TRANSISTOR
\
2S
A763
TRANSISTOR
2SC1312
\
25C1312
“
HD
TPG
2
|
SCREW,BUTTON
HD
TPG
COVER
SEVER
PLATE
HEAT
SINK
|
DS
19
DIODE
DS
131
DIODE
DS
132
DIODE
2SC
693
GL
TRANSISTOR
TRANSISTOR
TRANSISTOR
jor
TRANSISTOR!
TRANSISTOR
\
TRANSISTOR
|or
TRANSISTOR?
TRANSISTOR:
ie
TRANSISTOR.
TRANSISTOR
\
TRANSISTOR
|
TRANSISTOR
\
TRANSISTOR
jor
TRANSISTOR
|
DIODE
Location
R104,
R
69,R
70,
R
17,R
18,
R
67,R
68,R102,
R
43,R
44,R101,
R107,
R
47,R
48,R
51,R
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