Block Diagram - Main Section - Sony MDX-C8970 Service Manual

4-3. BLOCK DIAGRAM – MAIN Section –
LEVEL SHIFT
IC351 (1/2)
DADT 9
10
LRCK
2
DADT,
BCK 5
BCK,
LRCK,
512FS 512FS
A
(Page 19) INPUT SELECT
IC771
FM FM-IN-L
D 20 14
AM-IN-L
(Page 20)
18
AUX-IN-L
16
AM/TIR
E
R-CH
(Page 20)
8 9
CNP601 (1/2)
L
BUS
AUDIO IN
R R-CH
REFERENCE VOLTAGE
GENERATOR (FOR BIAS)
IC843 (2/2)
MIC AMP BUFFER
IC841 (1/3) IC841 (2/3)
CNJ252
MIC
BUFFER
IC841 (3/3)
OE 28
CE 26
WE 11
D0 – D7
FLASH
MEMORY
A0
IC805
A-1 45
A1 – A19
RESET 12
D0 – D7
PROGRAM
ROM
IC803
A0 – A15
A16
4
6
5
12 A17
11
A16 10 13
A17 6 9 A18
8
A18 7
10
2
3
OE 32
1
1
4
SWITCHING
SWITCHING
2
IC802
05
8 DIGITAL SIGNAL PROCESSOR,
71 SI1
DIGITAL FILTER,
D/A CONVERTER
FL-OUT
3
IC300 AOUTL1 27
76 LRCK
1 RL-OUT
AOUTR1 29
6
75 BCK
4 FR-OUT
54
AOUTR3
RR-OUT
81 PLCLK
AOUTL3 52
SUB-OUT
AOUTR2 43
XTLI38 41
35 LIN
R-CH 46 RIN 16.9344MHz
XTLO38 40
77 XMST
12 11
82 CKSTP
LEVEL SHIFT
61 63 59 62 60 57
IC351 (2/2)
+5V
CSV
IC801
BUFFER
51 AN0 DAC 48
IC843 (1/2)
50 AN1
SEL0
SEL1
32 P07
XMST
33 P06
DSPSTP
XI1 20
X801
TRDT
27 FCE 14.318MHz
XO1 19 RVDT
45 WRD
SCK
XLAT
REDY
D0 – D7
DSPRST
DSPCK, SA DATA
SA DATA
DSPCK
F
(Page 22)
A0 – A19
EMPHASIS
B
(Page 19)
RST 21
DO 38
DI 36
CLK 39
REQ 35
CE 37
42 26 44
IC804
IN1
LOW-PASS
4
FILTER
IN2
2
IC601
R-CH
GND 1-3
R-CH
LOW-PASS
FILTER
IC661 (1/2)
X300
CSV MIX SWITCH
IC691
1 2
7
R-CH
Q691
R-CH
R-CH
AUDIO +8.5V
CENTER VOLTAGE
GENERATOR
(FOR BIAS)
IC661 (2/2)
R-CH
11 CSV-PLAY
37 AUDIO SEL0
40 AUDIO SEL1
30 DSP-XMST
9 DSPSTP
17 DSP-SI
18 DSP-SO
19 DSPCK
59 DSP-XLAT
79 DSP-REDY
DAT-L
28 DSP-RST
VOL-DATA-L 56
DAT-R
VOL-DATA-R 57
CLK
VOL-CLK 58
LOD
VOL-LOAD 55
81 EMPH
MASTER CONTROLLER
D527
IC500 (2/4)
MUTE 36
112 CSV-RST
25 CSV-SI
26 CSV-SO
27 CSV-CK
110 CSV-REQ
111 CSV-CE
POWON 62
AMP-STBY 98
TEST 80
TEL-MUTE 83
21 21
• SIGNAL PATH
ELECTRICAL
: MD PLAY
VOLUME
IC602
OUT1
LINE
RESISTIVE
6
BUFFER
DRIVER
NETWORK &
OUT2
IC603
20
IC604
TAP SWITCHES
R-CH
SHIFT
REGISTER &
LATCH
11 9 10
R-CH
ELECTRICAL
VOLUME
IC632
IN1
OUT1
4 6 R-CH
RESISTIVE
IN2
OUT2
2 NETWORK & 20 R-CH
IN3 TAP SWITCHES OUT3 BUFFER
18 16
IC663
GND 1-3
R-CH
SHIFT
R-CH
REGISTER &
LATCH
11 9 10
D491
MUTING
CONTROL SWITCH
Q473
D472
BATTERY OFF
MUTE DRIVER AUDIO +8.5V
Q472
MUTING
BATT B+
CONTROL SWITCH
Q474
MUTING
CONTROL SWITCH
Q471
D471
RESET SWITCH ON
MUTING DRIVER
Q501
MDX-C8970
: FM : AM
CNP601 (2/2)
L
FRONT
MUTING
LINE OUT
Q601
R
MUTING
Q602
L
REAR
MUTING
LINE OUT
Q631
R
MUTING
Q632
(L)
MUTING
Q661
(R)
CN291
MUTING
Q662 SUB OUT
CNP401 (1/2)
POWER AMP
(POWER CONNECTOR)
IC481
1
OUT2+ 5 FL+
12 IN2
9
OUT2– 3 FL–
4
21
OUT4+ FR+
14
IN4
12
OUT4– 23 FR–
2
OUT1+ 9 RL+
11 IN1
10
OUT1– 7 RL–
3
OUT3+ 17 RR+
15 IN3
11
OUT3– 19 RR–
22 4
15
TEST MODE
13
TEL-ATT
POW-ON
G
(Page 23)
RESET
H
(Page 23)
LEVEL SHIFT
Q451
TEL 5V
I
(Page 22)