SRS-Z1000/Z1000PC
2-3. SCHEMATIC DIAGRAM
1
2
A
B
C
D
E
F
G
H
3
4
5
6
7
8
9
10
11
12
13
14
15
MAIN BOARD
16
C2
C1
1u 50V
1u 50V
C36
1000P
C34
1000P
C37
1000P
C35
1000P
C5
0.0022
R1
3.3k
R5
3.3k
R7
3.3k
R6
18k
R2
3.3k
R14
3.3k
R16
3.3k
C8
0.0022
R15
18k
R36
1.5k
R35
1.5k
C6
0.18
R8
3.3k
C7
0.18
R13
3.3k
C10
1u 50V
C9
1u 50V
R10
10k
R9
150
R12
10k
R11
150
Q2
2SC2458LGR
R33
22k
R17
22k
C42
1000P
R34
22k
C43
1000P
C4
C3
1u 50V
1u 50V
C40
1000P
C38
1000P
C41
1000P
C39
1000P
R3
3.3k
R4
3.3k
C50
1000P
C51
1000P
C52
1000P
Q1
Q1,Q2
MUTING
2SC2458LGR
C32
10u 50V
R19
68k
+
–
1
2
3
4
IC2
(1/2)
IC2
NJM2114D
IC2
NJM2114D
AMP
C11
1u 50V
R38
1k
R18
22k
C33
10u 50V
R20
68k
+
–
7
6
5
8
AMP
C12
1u 50V
R39
1k
IC2
(2/2)
C28
0.1
RV1(1/2)
RV1
VOLUME
10k
C13
0.15
RV1(2/2)
10k
C14
0.15
2
4
3
6
5
8
7
10
9
12
11
13 14
1
NC
NC
NC
NC
MUTE
IN2
PRE GND
OFF/ON
IN1
RIPPLE FIL
PO
WER GND1
INVER
TING OUT1
VCC1
NON INVER
TING OUT2
NON INVER
TING OUT1
INVER
TING OUT2
PO
WER GND2
VCC2
16
15
17 18
IC1
LA4705NA
POWER AMP
IC1
C15
100u 10V
C16
33u 50V
R25
ON
OFF
SW
(1/2)
SW1
10k
JK2
INPUT2
JK1
R
L
INPUT1
C18
0.1
R22
2.2
C17
0.1
R21
2.2
C46
1000P
C47
L-CH
8
Ω
1000P
C20
0.1
R24
2.2
C19
0.1
R23
2.2
C48
1000P
C49
1000P
C21
2200u 10V
C22
3300u 25V
C23
0.1
C25
10u 50V
C26
10u 50V
C27
10u 50V
C24
2.2u 50V
R26
33k
R29
10k
R27
33k
R28
15k
0
I
G
REG
15.0
IC3
D2
1SS119
D1
1SS119
C31
100u 10V
C30
100u 10V
R32
12k
R31
12k
C29
100u 10V
IC3
NJM78L08A
ON
OFF
SW1
(2/2)
R30
1.2k
CNP1
R37
24k
JK3
PLUG
R OUT
–
+
–
+
LED
D101
LED BOARD
SP RELAY BOARD
JK4
(JUMPER)
R-CH
8
Ω
MAX
MIN
POWER
ON
OFF
L
L
R
L
L
L
R
L
R
R
R
R
R
L
L
L
R
R
R
DC IN 15V 1A
8.0
4.0
4.0
8.0
4.0
4.0
4.0
4.0
0
0
0
0
0.3
0.3
1.6
8.1
10.2
2.8
1.6
15.0
8.0
8.0
8.1
8.1
15.0
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 1.5 V and fed with regulated dc power
supply from external power voltage jack.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
•
X
: parts extracted from the component side.
•
b
: Pattern from the side which enables seeing.
• Signal path.
F
: AUDIO
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— 8 —
