A
B
C
D
E
F
G
H
I
J
K
L
RX-Z1/DSP-AZ1/DSP-AX1UG
104
SCHEMATIC DIAGRAM (FUNCTION)
1
2
3
4
5
6
7
8
9
–
+
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4
5
+IN
1
–IN
2
+IN
2
–
+
6
7
8
★
All voltages are measured with a 10M
Ω
/V DC electric volt meter.
★
Components having special characteristics are marked
s
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
x: NOT USED
O: USED / APPLICABLE
IC1: NJM2068MD
IC4~IC8, IC10, IC12~IC15:
µ
PC4570G2
IC22~IC26:
µ
PC4570G2
Dual OP-Amp.
VSS
GND
CK
VDD
STB
DATA
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
2
1
3
4
5
7
6
8
9
10
11
12
13
14
15
16
17
18
19
20
21
41
42
40
39
38
36
37
35
34
33
32
31
30
29
28
27
26
25
24
23
22
IC2, 3: TC9274N-XXX
Analog Function Switch
IC11: LC78211
Analog Function Switch
1
2
3
4
5
6
7
8
9
10
11
30
29
28
27
26
25
24
23
22
21
20
19
16
12
18
17
14
15
13
LEVEL SHIFTER
LATCH
CONTR
OL
SHIFT REGISTER
ZZ
ZZ
ZZ
L1
L2
L3
L4
LCOM1
L5
L6
L7
L8
RES
S
VDD
VSS
VEE
LCOM2
LCOM3
R1
R2
R3
R4
RCOM1
RCOM2
RCOM3
R5
R7
R8
D1
CL
CE
R6
11
AOUTR
16
AINL
9
AINR
15
AGNDL
10
AGNDR
14
AOUTL
7
SDATAO
6
SCLK
2
CS
3
SDATAI
Serial to
Parallel
Register
Control
Register
8
MUTE
1
ZCEN
+
–
+
–
8
16
8
8
8
MUX
MUX
12
VA+
13
VA-
4
VD-
5
DGND
IC16~IC20: CS3310-KS
Stereo Digital Volume Controller
IC28: AN78N05
Voltage Regulator
+
–
1
2
3
Output Pass Transistor
Rsc
Excessive Electric
Current Protection
Power Supply
Standard
Voltage
Amp.
Heat
Protection
Starter
Circuit
IC31: ADM202JRN-REEL7
RS-232 Driver/Receiver
1
3
2
16
C1+
C1–
Vcc
V+
11
14
T1in
T1out
+5V
→
+10V
Voltage Boost
Circuit
4
5
6
C2+
C2–
V–
+10V
→
–10V
Voltage Inverter
T1
10
7
T2in
T2out
T2
12
13
R1in
R1out
R1
9
8
15
R2in
R2out
GND
R2
Point
6
emitter of Q7
and collector of Q8
POWER ON
(Connect the power cord)
POWER OFF
(Disconnect the power cord)
A Q7 E
B Q8 C
Point
5
Pin 13 of IC27
PHONO EQ AMP
MUTE
ZONE 2 VOLUME
MAIN
µ
-COM
RS-232C
INTERFACE
LEVEL CONTROL
5
7
1
8
4
6
2
2
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
15
16
41
40
39
38
37
36
35
34
33
32
31
30
29
26
25
24
28
27
2
6
5
21
20
1
22
23
42
21
20
1
22
23
42
7
4
3
1
4
5
6
2
3
3
2
1
30
29
28
27
23
2
1
3
5
7
6
8
10
9
11
22
21
20
10
9
11
22
21
20
7
1
2
3
1
8
8
2
3
1
8
4
6
5
7
4
6
5
7
6
5
7
4
6
5
7
4
5
6
7
8
6
5
7
4
2
3
1
4
6
5
7
4
8
3
2
1
8
2
3
1
4
3
2
1
8
3
5
6
7
27
30
29
28
4
3
2
1
8
24
25
26
22
2
1
8
5
6
7
8
26
25
24
2
8
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
5
6
2
3
15
16
41
40
39
38
37
36
35
34
33
32
31
30
29
26
25
24
8
4
1
7
5
6
2
3
8
4
1
7
5
6
2
3
7
1
8
4
1
3
2
6
5
8
4
7
5
6
2
3
8
4
1
7
28
27
3
P
age 105
to FL
from P
o
w
e
r
T
ransf
or
mer
to
MAIN (2)
K5
P
age 105
to FL
K5
P
age 106
to VIDEO
(1)
H1
P
age 106
to VIDEO
(9)
A8
P
age 106
to VIDEO
(9)
A8
P
age 107
to VIDEO
(2)
F1
P
age 111
from MAIN (3)
D1
Page 108
to VIDEO (4)
A6
Page 108
to VIDEO (3)
J4
Page 103
to DSP
K4
Page 103
to DSP
K6
Page 103
from DSP
K8
Page 103
from DSP
K7
Page 108
to VIDEO (3)
J5
6
A
B
5
L
L
CENTER
REAR CENTER
FRONT L
REAR L
0
0
0
11.0
-11.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
-11.3
0
-11.4
0.1
0
0.1
-11.3
11.3
-11.3
0
0
0
0
0
0
0
11.3
-11.3
0
0
0
0
0
0
0
0
0
0
0.4
0.4
11.3
-11.3
11.3
-11.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.8
-11.3
11.3
11.3
-11.3
-11.3
0
0
0
0
0
0
0
0
0
0
11.3
-11.3
0
0
-11.4
0.1
0
0
0
0
-11.3
-11.3
0
0
0
0
0
0
11.3
11.3
-11.3
0
0
0
0
0
0
11.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-11.3
0
0
0
-11.3
11.3
0
0
0
-11.4
0
0
0
11.4
0
0
-11.4
0
0
0
-11.4
0
0
0
-11.4
11.5
4.9
4.8
11.5
11.5
0
0
5.1
5.7
0
0
-4.9
-4.9
-5.5
0
0
0
11.4
11.5
-11.3
-11.3
-11.4
4.9
4.4
-11.4
-11.4
5.0
0
0
0
0
3.7
4.4
-11.4
-11.4
5.0
11.4
0.1
4.8
0.1
10.8
0.1
0
11.4
0
0
0
0
0
4.9
4.9
0
0
4.9
4.9
0
5.0
4.8
0.1
4.9
0
11.1
11.4
4.9
4.4
4.7
4.9
4.9
4.9
4.9
0
-11.4
5.0
0
0
-11.4
-11.4
5.0
4.8
4.7
0
4.9
4.4
-11.4
-11.4
5.0
4.9
4.4
-11.4
-11.4
5.0
0
0
0
-11.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11.4
0
0
0
11.4
0
0
0
11.4
0
0
0
0
0
0
0
11.3
5.1
-4.9
5.1
-4.9
0
5.1
-4.9
0
5.1
5.1
-4.9
-4.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.8
0
4.9
0.1
8.9
0
0.7
12.9
4.4
4.9
11.3
0.7
0
0
8.2
8.2
12.3
13.0
0
0
0.1
0
0.7
13.0
5.7
5.0
5.7
4.9
5.7
5.0
0
0
4.9
0
-9.0
5.0
7.4
0
9.7
4.9
-4.7
9.3
0
-9.5
0
0.1
4.8
5.0
5.0
-11.4
4.3
3.7
-11.3
0
0
0
11.4
0
0
5.0
11.4
4.3
5.5
5.5
0
0
4.9
5.0
0
0
0
4.9
0
4.9
0
0
-4.9
-4.9
5.1
5.1
0
0
5.0
-5.0
0
0
0
4.9
5.0
0
0
4.9
0
4.9
0
0
0
0
5.0
-5.0
0
0
0
4.9
5.0
0
0
4.9
0
4.9
0
0
0
0
5.0
-5.0
0
0
0
4.9
5.0
0
0
4.9
0
4.9
0
0
0
0
5.0
-5.0
0
0
0
4.9
5.0
0
0
4.9
0
4.9
0
0
0
0
5.0
-5.0
0
0
4.9
5.0
0.5
0
0
1.4
5.0
5.0
0
4.9
0
0
0
4.9
0
4.9
0.7
5.0
0
0
0
0
4.9
4.9
4.9
4.9
0
5.0
0.1
4.8
4.9
0
0
5.0
0.1
4.9
4.9
4.9
0
4.9
0
4.9
0
4.9
4.9
0
4.9
4.9
2.1
0
2.4
4.8
0
4.9
0.5
0
0
0
0.1
4.9
0
4.8
4.9
0
0
0
0
0
0.1
0
0
0
0
4.9
11.4
-11.4
0
0
0
0
0
11.4
4.7
4.9
4.9
4.9
4.9
4.9
4.8
4.9
4.9
3.7
3.7
-0.1
5.0
-0.1
-0.1
0
4.9
0
5.0
4.9
4.9
4.9
0
4.7
0
P
a
ge 10?
to VIDEO
(4)
??
Page 108
to VIDEO (5)
C2
Page 108
to VIDEO (5)
C3
Page 109
to SUB TRANS (6)
D8
Page 109
from SUB TRANS (1)
E1
from TUNER
3