Technics SADX-850 Schematic
FROM IC901
JK401
PHONO
JK402
CD
JK404
VCR RO
JK405
DVD LCH
JK403
TV LCH
JK404
VCR PB
JK402
TAPE REC
(OUT)
JK403
TAPE PLAY
(IN)
JK352
TV
MONITOR
OUT
JK352
VCR1 IN
DT SEL
TUNER
MODULE
IC451
AN6558F
OP
AMP
12
CK SEL
IN1
S301
+B
Q351
REGULATOR
8
V
Q401
(Q402)
SWITCH
13 11
IC401
TC9163AN
SELECTOR
3(26)
2(27)
4(25)
5(24)
6(23)
7(22)
8(21)
9(20)
10(19)
11(18)
C3
C4
Level shift
Latch circuit
Shift register
10
O1
X2
X1
X3
X4
X5
X6
IC402
X7
X8
12(17)
13
15
16
NJM4580DD
OP
AMP
SOUT_L
ST SEL
CK SEL
DT SEL
JK351
DVD
JK352
TV
JK352
VCR1 OUT
IC351
NJM2279MTE1
VIDEO SIGNAL SELECTOR
S301
IN2
3
C1
IN3
1 2 4 5
C2
D354
D353
O2
14
Q352
REGULATOR
-B
VIDEO A
VIDEO B
L_LPF
SW_DSP
IC1203
OP
NJM4580MTE1
+B
AMP
MAIN_LIN
L_DSP
DIGITAL
JK1301
TV
(OPTICAL)
JK1303
DVD
(OPTICAL)
JK1302
CD
(OPTICAL)
X1001
(12.288MHz)
IC1006
SNAHC1U04DBV
OSCILLATOR
IC1005
SN74HCU04APW
INVERTER
42
RX1
43
RX2
44
RX3
28
XTI
Q1001
SWITCH
IC1001
CS49326-CLR
DTS DECODER DSP
3 4 5 6 8 9
CCLK
DSP_OFF
CCLK
+VA
CD OUT
CD INCSPDN
CD OUT
CD IN
IC1003
SN74LV244APW
CONVERTER
1719 40
+VD
FILT
IC1002
CS4226-KQG
DIGITAL ANALOG CONVERTER
MCLK OUT37LRCK
SCLK
38
RESET
CS42
MCLK
4
36
6
7CS18
D OUT1
OVL/ERR
OVL/ERR
CS RESET
8~11,
14~17
26
AUDIO
CS49
+B
A OUT6
AIN1L
14
CM OUT
AINAUX
1636
15
IC1004
SN74AHCT244PW
CONVERTER
5
D IN233D IN1
343031
19
IC1201
NJM2060MTE1
21(22)
A OUT1(2)
10
A OUT6
25
A OUT5
23(24)
A OUT6
D IN3
32
2120
BUFFER
INTREQ
SCD OUT
AUDATA0
AUDATA1
AUDATA2
XMT958
AMP
IC1521(IC1522)
NJM2115MTE1
OP
AMP
LRCK
SCLK
CMP DAT27
CMP CLK28
CMP REQ29
25 SCLK N1
26 LRCLK N1
22 SDATA N1
30
CLK IN
CLK SEL
31
COMPRESSED
DATA INPUT
INTERFACE
SPDIF
RECEIVER
DIGITAL
AUDIO INPUT
INTERFACE
CLOCK MANAGER
FILTD
32
+
+B
RAM
OUTPUT
BUFFER
EMOE
SCD OUT
INTREQ
OUTPUT
FORMATTER
EXTMEN
MCLK
SCLK
LRCLK
AU DATA0
AU DATA1
AU DATA2
XMT958
MCLK
44
43
SCLK
LRCK
42
41
AUDATA0
AUDATA1
40
39
AUDATA2
3
XMT958
EMWR
RESET
FRAMER
SHIFTER
INPUT
BUFFER
CONTROLLER
RAM
INPUT
BUFFER
PLL
VSSA
FILTS
33
VDDA
35
34
+B
SCDIN
SCCLK
PARALLEL OR SERIAL HOST INTERFACE
DSP PROCESSING
RAM
PROGRAM
MEMORY
ROM
PROGRAM
MEMORY
STC
24-bit
RAM
DATA
MEMORY
RAM
DATA
MEMORY
DATA0~7
SOUT_L
JK1341
DVD
C_CH
SW_CH
LS_CH
IC1301,IC1302
NJM2060MTE1
OP AMP
IC1451
NJM4580MTE1
OP
AMP
SW_DSP
L_DSP
12
8
9
21 19
20
5(24)
6(23)
3(26)
2(27)
SW CONT.
STB
CLK
DATA
11
10
13
15
16
7(22)
4(25)
ST SEL
CK SEL
DT SEL
L_OUT(R)
JK406
SUBWOOFER
IC1230
NJM2060MTE1
OP AMP
IC1401
TC9162AF
Q556
MUTING
SWITCH
Q560
REGULATOR
Q557
MUTING
SWITCH
ANALOG FUNCTION SWITCH
+B
TO TUNER MODULE
IC970
LC72720N
RDS
CS42
CD IN
V
VIDEO B
VIDEO A
CD OUT
CCLK
DSP_OFF
INTREQ
SCD OUT
RDS_DT
RDS_CE
23 22 21 20
RDS_CK
RDS_IN
2
RDS_DI
RESET
OVL/ERR
CS49
CS RESET
94
CS4226_RESET
29
CS4226_OVLERR
93
CS49326_CS
95
CS49326_RESET
56
VCR_MUTE
28
91
CS4226_CS
CS49326_CDIN
6
4
3
RDS_CLK
5
RDS_DI
(REMOTE SENSOR)
99
100
VIDEO B
27
VIDEO A
92
CS49326_CCLK
CS4226_CDOUT
19 30 90
CS49326_INTREQ
DSP_PASS/DSP_OFF
36~44,55
54
CS49326_SCDOUT
LED
RDS_CE
SUBW_MUTE
IC901
C2BBGF000262
MICROCOMPUTER
RDS_DO
31
Z901
REMOTE
10,9
SD
IF DATA
11,47,48
TCE
TCK
TDT
22
21
7
8
9(20)
10(19)
11(18)
4(25)
5(24)
12
14
SW_IN
C_IN
SL_OUT
SL_IN
LIN
SHIFT REGISTER (32 BIT)
CK
TC9482F
VOLUME CONTROL
IC1231
NJM4580MTE1
OP AMP
1 dB
VR
LATCH
8 dB
VR
LATCH
1 dB
VR
LATCH
8 dB
VR
LATCH
1 dB
VR
LATCH
8 dB
VR
LATCH
1 dB
VR
LATCH
8 dB
VR
LATCH
LEVEL SHIFT CIRCUIT
IC1402
3 TO 7
4 TO 13
STROBE GENERATE
CIRCUIT
SW_OUT
DECODER
DECODER
C_OUT
LOUT
STB
DATA
23
6
3(26)
17
16
15
L_OUT(R)
IC1452
NJM2060MTE1
OP AMP
Q553(Q554)
MUTING
SWITCH
RCH
L_LPF
Q551
(Q552)
Q555
MAIN_LIN
MUTING
SWITCH
MUTING
SWITCH
M
+VD
18
VH+
1
4
-+HOUT
IN1-
20
21
22
IN2-
SGND
+
+
VO1
VO2
6
10
DC
3
D651
RCH
+B
+B
+B
H.P.F
14
TC9482_CLK
D652
5
12
IHDET
L.P.F
DISP
IC651
RSN313H25-P
POWER AMP HIC
SEG 1~16
60~78
FL901
FL DISPLAY
11
IC901
23 22
XOUT
8
THERM/OVLD2
XIN
CF901
15 16
TC9482_ST
TC9482_DT
C2BBGF000262
MICROCOMPUTER
RESET
18
Q901
+B
HOLD
HOLD
32
Q902
HOLD
+B
-HOUT
VH-
-VD
SENSSENS+
RLY
AC
DEG 1~10
79~88
2
19
14
13
15
7
-B
-B
-B
-B
+B
FROM POWER
TRANSFORMER
Q651
RELAY
CONTROL
L.P.F
RCH
IC601
RSN310R36A-P
POWER AMP HIC
14
SENS+
+HOUT
VO1
VO2
VO3
-HOUT
SENS-
VH+
VH-
15
RLY
DC
AC
19
PASS+
21
IN1-
23
GND
22
IN2-
24
IN3-
20
PASS-
17
VDLIM
9
GND
12
DISP
13
IHDET
+
+
+
+
OVER
DET
10
+B
2
+B
D601
5
7
4
1
6
3
16
11
8
+B
RCH
H.P.F
H.P.F
D602
-B
-B
+B
Q652
CONTROL
RELAY
OVERDET
AMUTE
SP A
SP B
OUT
S/C SP
V03
V03
OVERDET
RLY
7
SEL_ENCD_1
SEL_ENCD_2
34 35
VR901
(INPUT SELECTOR)
Q604
SWITCH
45
LIMITTER
THERM/OVLD1
D617
L.P.F
S301
33
FRT_VCR2
IC901
C2BBGF000262
MICROCOMPUTER
Q903
SWITCH
KEY SWITCH
1,2
VOL_ENCD_1
25
VR902
(VOLUME)
KEY1
KEY2
VOL_ENCD_2
26
AF MUTE
SP A
SP B
RELAY
S/C SP
OUT
M
53
51
50
52
49
AMUTE
SP A
SP B
RLY
S/C SP
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