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A
B
C
D
E
F
G
H
1
2
3
4
5
6
I
J
K
L
M
N
7
8
9
10
DSP-AX2
■
SCHEMATIC DIAGRAM (DSP)
* All voltage are measured with a 10M
Ω
/V DC electric volt meter.
* Components having special characteristics are marked
Z
and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
E-72/J-70
Point
q
(Pin 1 of IC501)
V : 2V/div, H : 50 nsec/div
DC, 1 : 1 probe
0V
IC512, 515–519, 525–527 :
µ
PC4570G2
IC509 : NJM2904M-T1
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
IC510, 511 : TC74HCUO4AF-TP1
Hex Inverters
1A
1Y
2Y
V
DD
6A
1
2
3
4
11
2A
6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7
V
SS
4Y
8
9
10
IC507, 513 : TC74HC00AF
Quad 2 Input NAND
A1
B1
A2
V
DD
B4
1
2
3
4
11
Y1
A4
Y4
12
13
14
B2
Y2
B3
A3
5
6
7
V
SS
Y3
8
9
10
IC504 : CY62256LL-70SNCT
32K X 8 bits Static RAM
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
I/O0
I/O1
I/O2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
WE
A4
A3
A2
A1
OE
A0
CE
I/O7
I/O6
I/O5
I/O4
I/O3
INPUT BUFFER
COLUMN
DECODER
POWER
DOWN
SENSE AMPS
R
O
W DECODER
512 X 512
ARRAY
CE
A10
A9
A8
A7
A6
A5
A4
A3
A2
A14
A13
A12
A11
A1
A0
WE
OE
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
IC514 : AK4527VQ
96kHz 24 bit 6ch CODEC
1
2
3
4
5
6
7
8
9
10
11
SDOS
I2C
SMUTE
BICK
LRCK
SDTI1
SDTI2
SDTI3
SDTO
D AUX
DFS
12
13
14
15
16
17
18
19
20
21
22
DEM1
DEM0
TVDD
DVDD
DVSS
PDN
ICKS2
ICKS1
ICKS0
CAD1
CAD0
33
32
31
30
29
28
27
26
25
24
23
DZF2
RIN+
RIN–
LIN+
LIN–
ROUT1
LOUT1
ROUT2
LOUT2
ROUT3
LOUT3
44
43
42
41
40
39
38
37
36
35
34
LOOP1
LOOP0/SDA/CDTI
DIF1/SCL/CCLK
DIF0/CSN
P/S
MCLK
DZF1
AVSS
AVDD
VREFH
VCOM
IC508 : TC74VHCT08AF
Quad 2 Input AND
A1
B1
A2
V
DD
B4
1
2
3
4
11
Y1
A4
Y4
12
13
14
B2
Y2
B3
A3
5
6
7
V
SS
Y3
8
9
10
IC502 : MSM514260C-60JS
262,144-word x 16 bit Dynamic RAM
1
VCC
2
DQ1
3
DQ2
4
DQ3
5
DQ4
6
VCC
7
DQ5
8
DQ6
9
DQ7
10
DQ8
11
NC
12
NC
13
WE
14
RAS
15
NC
16
A0
17
A1
18
A2
19
A3
20
VCC
40
VSS
39
DQ16
38
DQ15
37
DQ14
36
DQ13
35
VSS
34
DQ12
33
DQ11
32
DQ10
31
DQ9
30
NC
29
LCAS
28
UCAS
27
OE
26
A8
25
A7
24
A6
23
A5
22
A4
21
VSS
TIMING
GENERATOR
I/O
CONTROLLER
I/O
CONTROLLER
COLUMN
DECODERS
SENSE
AMPLIFIERS
I/O
SELECTOR
OUTPUT
BUFFERS
OUTPUT
BUFFERS
INPUT
BUFFERS
INPUT
BUFFERS
MEMORY
CELLS
COLUMN
ADDRESS
BUFFERS
INTERNAL
ADDRESS
COUNTER
REFRESH
CONTROL CLOCK
ROW
DECODERS
WORD
DRIVERS
ON CHIP
VBB GENERATOR
ROW
ADDRESS
BUFFERS
RAS
LCAS
UCAS
A0~A8
VCC
VSS
WE
OE
DQ1~DQ8
DQ9~DQ16
9
9
16
16
8
8
8
8
8
8
8
8
9
9
IC521, 522, 524 : PCM1704F
24 bit D/A Converter
REF DC
SER
VO DC
—
VDD
DGND
+VDD
—
VCC
AGND
+VCC
BPO DC
19
17
4
5
6
20
16
11
12
14
SERIAL INPUT I/F
&
CONTROL LOGIC
23—BIT DAC A
23—BIT DAC B
BIPOLAR
OFFSET
REFERENCE
&
SERVO
POWER SUPPLY
10
9
1
7
2
3
8
13
18
IOUT
NC
NC
NC
NC
BCLK
WCLK
DATA
20BIT
INVERT
IC520, 523 : DF1704E
24 bit Digital Filter
SERIAL
INPUT
I/F
8X OVERSAMPLING
DIGITAL FILTER
WITH
FUNCTION CONTROLLER
OUTPUT
I/F
MODE
CONTROL
I/F
CRYSTAL OSC
POWER SUPPLY
2
28
1
11
12
13
10
15
14
16
17
18
27
6
4
3
5
26
25
24
23
19
20
7
9
22
8
BCKIN
LRCIN
DIN
BCKO
WCKO
DOL
DOR
SF0
SF1
SRO
IIS
IW0
IW1
OW0
OW1
XTI
XT
O
CLKO
VDD
VSS
MD/CKO
MC/LRIP
ML/RESV
MODE
MUTE
RST
DEM
SCK
DATT
L P F
DAC
L OUT1
H P F
A D C
L IN+
L IN–
MCLK
LRCK
BICK
DAUX
SDOS
SDTO
SDTI1
SDTI2
SDTI3
FORMAT
CONVERTER
H P F
A D C
R IN+
R IN–
DATT
L P F
DAC
R OUT1
DATT
L P F
DAC
L OUT2
DATT
L P F
DAC
R OUT2
DATT
L P F
DAC
L OUT3
DATT
L P F
DAC
R OUT3
A U D I O
I / F
MCLK
LRCK
BICK
SDOUT
SDIN1
SDIN2
SDIN3
DC INPUT (VIN)
DC OUTPUT (VO)
ON/OFF CONTROL (VC)
GND
2
5
3
1
I C
IC505 : PQ025EZ5MZP
+2.5V Regulator
AC3D3
4M
DRAM
AC-3 RF DEMODULATOR
CODEC
(A/D & D/A CONVERTER)
DIGITAL
FILTER
D/A
CONVERTER
RAM
FL
FL
FL/FR
FL/FR
RL
RL
RL/RR
RL/RR
RC
RC/LFE
RC/LFE
RC
L
L
CD DIGITAL
L/R
C
L/R
C
C
C
0
4.9
4.9
4.9
3.3
0
4.9
4.9
3.3
0
0
4.9
0
0
4.9
0
0
4.9
0
0
4.9
0
0
4.9
0
0
4.9
0
0
4.9
3.7
0
4.9
4.9
2.0
0
0
0
0
0
4.9
4.9
3.7
0
0
0
2.6
3.1
0
4.9
0.4
2.6
3.1
0
0.4
0
0
0
0
0
0
4.9
0
0
0
0
4.9
4.9
0
0
0
0
4.9
0
5.0
5.0
0.1
0.1
0.1
0
0.8
0
0
0.8
3.1
1.7
5.0
1.0
3.7
~
~
0
0.1
0.1
0.1
0.1
0
0
0
0
~
2.1
2.1
2.0
2.0
~
~
~
~
0
2.6
0
4.8
5.0
2.6
5.0
2.6
0
5.0
3.4
0
3.4
0
5.0
0
0
0
0
0
2.5
0.4
4.0
4.0
0
0
0
3.4
0
4.8
0
0
4.8
0
0
4.0
0
4.0
4.0
2.5
0.1
0.1
0.1
2.5
0
0
3.3
3.3
3.3
0
3.3
3.3
0
0
0
0.7
0
0
~
0
0
1.6
1.6
1.6
0
0
0
2.5
0
0
~
0
3.3
0
3.3
2.1
0
1.7
3.4
1.2
0
4.7
4.7
1.6
0
0
0
0
4.7
4.8
4.8
1.6
0
2.4
2.4
~
~
4.7
4.7
4.7
0
4.7
0
4.6
1.6
0.7
0
4.7
4.7
1.6
0
0
0
0
4.7
4.8
4.8
1.6
0
2.4
2.4
1.7
4.7
4.7
4.7
0
4.7
0
4.6
~
2.4
-4.9
0
4.9
2.4
-4.9
-2.3
-2.3
0
0
0
2.6
4.9
~
2.4
-4.9
0
4.9
2.4
-4.9
-2.3
-2.3
0
0
0
2.7
4.9
1.7
2.4
-4.8
0
4.9
2.4
-4.8
-2.3
-2.2
0
0
0
2.7
4.9
0
0
0
0
-11.0
0
0
0
11.6
0
-11.0
0
0
-11.0
0
0
0
-11.6
0
0
0
11.6
0
0
0
-11.6
0
0
0
0
-11.0
0
0
0
11.6
0
-11.0
0
0
0
0
-11.6
2.5
2.5
2.5
11.6
2.5
2.5
2.5
11.6
2.5
2.5
2.5
-11.6
2.5
2.5
2.5
-11.6
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
5.0
0
5.0
0
0
2.8
3.3
2.8
0
2.8
3.3
0
0
2.8
2.8
0
2.8
3.3
2.8
0
2.8
3.3
0
0
2.8
2.8
0
0
0
0
0
0
0
0
0
-11.0
-11.0
0
0
0
-11.0
-11.0
0
0
0
0
0
0
11.6
-11.6
0
0
0
0.6
0.6
0
0
0
0
0
0
11.6
-11.6
0
0
0
0.6
0.6
0
0
0
0
0
0
11.6
-11.6
0
0
0
1.6
1.6
0
0
~
0
0
0
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0
5.0
0
5.0
0
3.3
0
5.0
5.0
0
0
0
0
5.0
0
5.0
1.6
0
5.0
5.0
2.5
1.6
1.5
4.0
0
0
3.3
0
0
0
0
0
0
0
3.3
0
0
0.9
3.4
1.7
1.8
0
0
3.4
0.2
0
0
0
0
0
~
~
0.4
0
3.3
~
~
1.7
~
1.0
~
~
3.4
0
1.7
2.0
3.1
2.1
0.1
0.1
0.1
0.1
0
0
0
~
3.4
0
0.8
0
0
0.8
0
0
3.3
3.3
0
CIRCUIT CHANGES BY MARKET.
X : NOT USED
O : USED
Point
w
(Pin 56 of IC503)
V : 2V/div, H : 50 nsec/div
DC, 1 : 1 probe
0V
Conditions
• INPUT: DVD auto
• PROGRAM: PRO LOGIC DSP