A
B
C
D
E
F
G
H
I
J
K
L
RX-Z1/DSP-AZ1/DSP-AX1UG
102
SCHEMATIC DIAGRAM (DSP 1/2)
DTS-ES / AAC DECODER
RAM
INPUT / REC OUT SELECTOR
DE-
MODULATOR
DOLBY DIGITAL / PL2 DECODER
SUB DSP
CLOCK DIVIDER
DIR
A/D
CONVERTER
SUB
µ
-COM
1
2
3
4
5
6
7
8
9
IC2, 4, 7: TC74HCU04AF-TP1
Hex Inverters
IC8:
µ
PC4574G2
4 Channel OP-Amp
1
2
3
4
11
12
13
14
5
6
7
8
9
10
GND
3Y
3A
2Y
2A
1Y
1A
4Y
4A
5Y
5A
6Y
6A
VCC
4B
13
4A
12
4Y
11
3B
10
3A
9
3Y
8
1B
2
1Y
3
2A
4
2B
5
2Y
6
GND
7
IC3: TC74HCT00AF
Quad 2-Input Nand Gate
Vcc
14
1A
1
IC6: NJM2904M
Dual OP-Amp
Q1
Q2
Q3
Q9
Q8
Q4
INPUTS
OUTPUT
V–
–
+
Q6
Q5
Q10
Q11
Q12
Q7
Q13
1
2
3
4
11
12
13
14
5
6
7
8
9
10
OUT A
–IN A
+IN A
V+
+INB
–INB
OUT B
OUT D
–IN D
+IN D
V–
+INC
–INC
OUT C
A
– +
D
+ –
+ –
C
– +
B
IC10:
µ
PC4570G2
Dual OP-Amp
–
+
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4
5
+IN
1
–IN
2
+IN
2
–
+
6
7
8
CE
COLUMN
DECODER
POWER
DOWN
OE
I/O
7
I/O
6
A
14
WE
A
13
A
12
A
11
A
1
A
0
IC15: CY62256LL
Static RAM
512x512
ARRAY
INPUT
BUFFER
R
O
W DECODER
SENCE
AMPS
A
7
A
6
A
5
A
4
A
10
A
9
A
8
A
3
A
2
I/O
5
I/O
4
I/O
3
I/O
2
I/O
1
I/O
0
IC16: TC74VHCT08AF
Quad 2-Input And Gate
Vcc
14
4B
13
4A
12
4Y
11
3B
10
3A
9
3Y
8
1A
1
1B
2
1Y
3
2A
4
2B
5
2Y
6
GND
7
IC18: TC74VHCT541AF
3-State Buffer
Vcc
20
/G2
19
Y1
18
Y2
17
Y3
16
Y4
15
Y5
14
/G1
1
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
Y6
13
Y7
12
Y8
11
A7
8
A8
9
GND 10
IC19: IS61LV6416-15K
64k x 16 High-speed CMOS Static RAM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
A15
A14
A13
A12
A11
/CE
I/O0
I/O1
I/O2
I/O3
Vcc
GND
I/O4
I/O5
I/O6
I/O7
/WE
A10
A9
A8
A7
NC
A0
A1
A2
/OE
/UB
/LB
I/O15
I/O14
I/O13
I/O12
GND
Vcc
I/O11
I/O10
I/O9
I/O8
NC
A3
A4
A5
A6
NC
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A0 - A15
VCC
GND
/CE
/OE
/WE
/UB
/LB
I/O0 - I/O7
Lower Byte
I/O8 - I/O15
Upper Byte
DECODER
I/O
DATA
CIRCUIT
CONTROL
CIRCUIT
COLUMN I/O
64k X 16
MEMORY ARRAY
IC21: PQ025EZ5MZP
Regulator
1
Vin
3
Vo
2
Vc
5
GND
★
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
Point
3
Pin 13 of IC17
Point
2
Pin 2 of IC14
Point
1
Pin 12 of IC55
INHIBIT
DUTY CORRECTOR
3
1
2
DIGITAL IN
L/R
C/LFE
LS/RS
RC
4.1
4.1
0
-0.6
4.7
4.7
4.7
3.9
4.7
4.1
4.7
4.1
4.1
-0.6
-3.6
0
0
0
3.3
4.7
-0.1
0
0
4.3
4.8
4.8
0
4.7
0
0
0
0
0
0
4.7
0.4
3.0
2.5
4.7
0
0
0
0
0
0
4.8
0.4
0
4.7
0
0
0
3.2
3.2
3.4
4.8
4.8
4.7
4.7
2.5
0
0
2.4
2.4
2.4
2.4
2.4
2.4
4.9
2.4
2.4
0
4.9
2.4
2.4
2.4
2.4
2.4
2.4
-11.3
2.4
0
3.6
2.6
2.4
2.4
0
0
3.1
3.1
0
0
1.6
1.6
2.4
2.4
2.4
0
3.6
4.9
0
0
0
3.1
0
1.5
3.1
1.2
2.4
0
0
4.9
4.9
11.3
0
0
0
0
0
0
0
3.4
1.6
3.2
3.2
1.2
0
3.2
0
0
0
0
4.7
4.7
1.2
0
1.6
4.8
0.2
0
4.8
4.8
3.2
1.6
0
0
0
0
0
0
0
0
0
0
0
0
1.2
0
0
0
4.7
3.2
1.6
4.8
4.8
0
4.7
0
3.8
0
4.7
3.8
0
4.7
3.8
0
4.7
3.8
0
4.7
3.8
0
4.7
3.8
0
4.7
3.0
2.5
4.7
0
0
0
0
0
4.8
0.4
3.0
2.5
0
0
0
0
0
4.8
0.4
3.0
2.5
0
-0.8
-0.1
0
0
4.7
3.9
2.4
2.4
2.4
-5.0
2.9
2.9
4.7
4.7
0
0
4.7
0
4.7
0
0
0
0
0
4.7
0
0
4.7
1.2
0
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
0
4.7
2.3
0
0
0
0
2.4
0
0
2.4
0
0
0
0
4.7
4.7
4.7
4.7
0
4.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.7
0
4.7
0
0
2.6
0
0
1.2
1.2
0
4.7
4.7
4.7
0
4.7
4.7
4.7
4.7
4.7
4.7
0
1.2
1.2
4.7
0
1.2
0
0
0
4.7
4.7
4.7
0
0
0
0
0
0
0
4.8
0
4.8
0
~
4.8
0
4.4
4.8
4.8
0.1
4.8
4.8
4.8
4.8
4.8
4.8
4.8
3.2
3.2
0.2
0.1
4.8
0.1
~
4.7
0
0
0
0
0
0
0
0
0
~
~
0
0
0
0
0
0
0
0
0
0
2.3
2.1
~
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
4.8
4.9
0
~
~
~
4.8
0
0.1
0
4.7
0.1
0
0
0
0
0
0
0
0
0
0
~
~
~
~
4.8
4.8
4.8
4.8
1.6
1.6
0
0
0
0
0
2.6
1.6
0
1.6
0
1.6
0
0
1.3
0
1.2
0
1.2
4.8
3.1
3.1
1.6
0
2.4
3.1
3.1
0
0
1.6
0
1.5
0
0
3.1
3.2
3.2
0.1
3.1
1.6
0
0
3.1
3.2
3.1
0
0
3.1
0
0
3.2
0
~
3.1
3.0
0
3.2
3.1
4.8
4.8
4.8
~
4.4
0
0
4.8
0
4.8
0
0
4.8
0
4.8
0
0
3.1
4.7
3.1
0
0
0
4.6
2.7
0
3.2
0
0
0
0
0
3.2
0
0
0
0
0
0
3.2
0
0
0
0
0
0
0
0
2.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2.6
0
0
0
0
3.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.2
0
0
0
3.2
0
4.4
2.7
0.2
4.6
2.7
3.2
3.2
3.2
3.2
3.2
2.6
3.2
0
0
0
0
0
0
2.6
0
~
3.0
3.1
0.1
~
0
0
0
3.2
0
0
1.6
2.6
1.6
0
1.6
2.6
0
0
1.6
3.2
1.6
0
0
0
0
0
0
0
2.6
3.2
2.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.2
3.1
2.6
0
0
0
3.0
3.2
3.2
3.2
1.3
0.7
~
0
0
0
0
0
0
0
0
2.6
2.6
0
3.8
3.8
0
3.8
0
4.8
4.8
0
0.2
4.8
3.3
0
0
0
0
2.6
0.4
3.8
3.8
3.8
~
0.4
0.4
3.2
0.4
2.4
3.2
0
3.2
0
0
1.6
3.7
0
3.2
3.2
0
0
0
4.7
0
3.2
1.6
1.6
0
0
1.3
0
0
1.2
3.2
0
0
1.1
3.2
2.0
4.8
3.2
1.9
0
0.2
0
0