Technics SADX-850 Schematic

DTSEL	CKSEL					IC401		SOUTL	STSEL	CKSEL	DTSEL
						TC9163AN
						SELECTOR
FROM IC901	TUNER				3(26)	X2
	MODULE
	IC451			V
	AN6558F
JK401	OP				2(27)	X1
PHONO	AMP
JK402					4(25)	X3
				Q401
CD
				(Q402)	5(24)
JK404
				SWITCH
VCR RO
JK405					6(23)	X4
DVD LCH
JK403					7(22)	X5
TV LCH			S301
JK404					8(21)	X6
VCR PB
					9(20)			IC402
								NJM4580DD
JK402					10(19)	X7	12(17)	OP
TAPE REC								AMP
(OUT)					11(18)	X8
JK403
TAPE PLAY
(IN)							13
						Level shift
							15
						Latch circuit
			+B				16
						Shift register
		Q351
		REGULATOR
JK352
TV
MONITOR
OUT
		8		13	11	10
JK352	12	IN1		C3	C4	O1
VCR1 IN
JK351	3	IN2
DVD
S301		IN3	C1	C2	O2
JK352		1	2	4	5	14
TV						Q352
						REGULATOR
JK352
VCR1 OUT					D354	-B
					D353
IC351
NJM2279MTE1

VIDEO SIGNAL SELECTOR

VIDEO A		VIDEO B

SW_DSP

					OP	IC1203
		+B			AMP	NJM4580MTE1
		19	40	17	26
		+VA	+VD	FILT	OUT6
					A
JK1301	42	RX1
TV
(OPTICAL)
DIGITAL JK1303	43	RX2
DVD
(OPTICAL)
JK1302	44	RX3			IC1002
CD					CS4226-KQG
(OPTICAL)					DIGITAL ANALOG CONVERTER

28

CCLK

OUTCD

INCD

CS

PDN

OUTMCLK

LRCK

SCLK

OUT1D

OVL/ERR

AUDIO

AIN1L

AINAUX

OUTCM

IN2D

IN1D

IN3D

XTI

Q1001

3

4

5

6

8

31

37

38

36

30

9

14

15

16

33

34

32

SWITCH

X1001

CCLK

OUTCD

INCD

CS42

RESET

OVL/ERR

DSPOFF

(12.288MHz)

SN74HCU04APW

MCLK

RESET

CS49

IC1005

INVERTER

CS

MAIN LIN	L LPF	L DSP
	IC1201
	NJM2060MTE1
21(22)	BUFFER
	AMP
A OUT1(2)

			IC1521(IC1522)
		NJM2115MTE1
10			OP
A OUT6			AMP

25

A OUT5

23(24)

A OUT6

IC1006
SNAHC1U04DBV
OSCILLATOR
IC1003
SN74LV244APW	INTREQ

CONVERTER

SCD OUT

IC1004

AUDATA0

SN74AHCT244PW

AUDATA1

+B

CONVERTER

IC1001

AUDATA2

CS49326-CLR

XMT958

DTS DECODER DSP

8~11,

4

36

18

7

6

14~17

5

19

20

21

EMWR

RESET

CS

SCCLK

SCDIN

DATA0~7

EMOE

SCD OUT

INTREQ

EXTMEN

27

CMP DAT

PARALLEL OR SERIAL HOST INTERFACE

28

CMP CLK

COMPRESSED

DATA INPUT

INTERFACE

SPDIF

29

CMP REQ

RECEIVER

FRAMER

MCLK

44

MCLK

SHIFTER

24-bit

DSP PROCESSING

SCLK

43

SCLK

INPUT

RAM

RAM

BUFFER

25

SCLK N1

CONTROLLER

PROGRAM

DATA

OUTPUT FORMATTER

LRCLK

42

LRCK

MEMORY

MEMORY

RAM

ROM

RAM

OUTPUT

AU DATA0

41

AUDATA0

26

LRCLK N1

DIGITAL

BUFFER

AUDIO INPUT

PROGRAM

DATA

AU DATA1

40

AUDATA1

INTERFACE

RAM

MEMORY

MEMORY

22

SDATA N1

INPUT

AU DATA2

BUFFER

STC

39

AUDATA2

30

CLK IN

XMT958

3

XMT958

PLL

31

CLK SEL

CLOCK MANAGER

FILTD

FILTS

VSSA

VDDA

32

33

35

34

+

+B

+B

LRCK

SCLK

SOUT L	SW DSP	L DSP	ST SEL	CK SEL	DT SEL	L OUT(R)
		STB	13
		CLK	15
		SW CONT.
		DATA	16
		12	11
		8	10

	C_CH		9
	IC1301,IC1302
	NJM2060MTE1		21	19
JK1341	SW_CH		20
DVD	OP AMP
			5(24)	7(22)
	LS_CH		6(23)
	IC1451
	NJM4580MTE1		3(26)	4(25)
	OP		2(27)
	AMP
	IC1230			IC1401
	NJM2060MTE1
				TC9162AF
	OP AMP	Q556	Q560	ANALOG FUNCTION SWITCH
		MUTING	REGULATOR	+B
		SWITCH
	JK406
	SUBWOOFER

Q557

MUTING

SWITCH

																																	TO TUNER MODULE
																									IC970
																									LC72720N						2
																								RDS					RDS_IN
																						RDS CE			RDS DT		RDS CK		RDS DI
V			CS42		CD IN		VIDEO B		VIDEO A		CD OUT		CCLK		DSP OFF		INTREQ		SCDOUT
																					23			22			21		20
56		28			91		99		100		27		92		19	30			90	54	6			4			3		5		10,9				11,47,48

RESET

OVL/ERR

CS49

CS RESET

94

29

93

95

VCR MUTE	CS4226 CS	CS49326 CDIN	VIDEO B	VIDEO A	CS4226 CDOUT	CS49326 CCLK	DSPPASS/DSP OFF	CS49326 INTREQ	CS49326SCDOUT	SUBW MUTE
CS4226_OVLERR
CS4226_RESET
CS49326_CS
CS49326_RESET
									LED

36~44,55

RDS CE

RDS DO

RDS CLK

RDS DI

IF DATA SD

TCE TCK TDT

IC901

C2BBGF000262

MICROCOMPUTER

REMOTE

31

Z901

(REMOTE SENSOR)

SW_OUT

23

OUT(R)L

LPFL

MAINLIN

22

1 dB

SW_IN

VR

LATCH

8 dB

21

VR

LATCH

C_OUT

6

1 dB

Q551

7

C_IN

(Q552)

VR

MUTING

LATCH

SWITCH

8 dB

8

VR

LATCH

9(20)

SL_OUT

3 TO 7

DECODER

IC1452

NJM2060MTE1

10(19)

1 dB

SL_IN

VR

LATCH

OP AMP

8 dB

DECODER

11(18)

VR

4 TO 13

LATCH

Q555

4(25)

LIN

MUTING

1 dB

SWITCH

VR

LATCH

8 dB

5(24)

VR

LATCH

LOUT

3(26)

SHIFT REGISTER (32 BIT)

STROBE GENERATE

Q553(Q554)

CIRCUIT

12

LEVEL SHIFT CIRCUIT

17

MUTING

M

SWITCH

14

CK

STB

16

DATA

15

IC1402

TC9482F

VOLUME CONTROL

+VD

18

+B

VH+

1

+B

-+HOUT

4

D651

+B

IC1231

NJM4580MTE1

20

IN1-

-

VO1

6

OP AMP

RCH

RCH

+

DC

10

21

IN2-

-

VO2

3

H.P.F

+

22

SGND

12

-HOUT

5

D652

IHDET

-B

Q651

VH-

2

-B

RELAY

-VD

19

-B

CONTROL

SENS-

14

-B

L.P.F

SENS+

13

+B

11

IC651

RLY

15

DISP

RSN313H25-P

7

AC

POWER AMP HIC

14

15

16

8

TC9482 CLK

TC9482 DT

TC9482 ST

IC901

THERM/OVLD2

C2BBGF000262

MICROCOMPUTER

RESET

HOLD

XOUT

XIN

SEG 1~16

DEG 1~10

18

32

23

22

60~78

79~88

Q901

Q902

+B

HOLD

HOLD

+B

FL901

CF901

FL DISPLAY

FROM POWER

TRANSFORMER

IC601

RSN310R36A-P

POWER AMP HIC

						SENS+	14	+B
						VH+	2	+B
		19								AMUTE
			PASS+
						+HOUT	5	D601		SP A
								+B
						VO1	7	RCH
		21	IN1-
		RCH	-
			+
										SP B
		23	GND
						VO2	4	H.P.F		OUT
		22	IN2-
			-
			+
										S/C SP
L.P.F
						VO3	1		H.P.F	V03
		24
			IN3-
			-
			+
		20	PASS-
								D602		V03
						-HOUT	6
								-B
			-
			+							OVERDET
		17	VDLIM			VH-	3
							-B
		9	GND			SENS-	15 +B			Q652
						RLY	16			RELAY
		12	DISP							CONTROL
						DC	11
		13	IHDET			AC	8			RLY
			OVER DET
			10							OVERDET
			L.P.F
										OUT
		D617
		Q604
		SWITCH
			S301		KEY SWITCH
				Q903
				SWITCH
									M
	7	45	33			1,2
	THERM/OVLD1	LIMITTER	IC901FRTVCR2			KEY1 KEY2		53		AMUTE
								AF MUTE
								51		SP A
								SP A
								50		SP B
			C2BBGF000262
								SP B
			MICROCOMPUTER					52		RLY
SEL ENCD 1	SEL ENCD 2				VOL ENCD 1	VOL ENCD 2		RELAY
								49		S/C SP
								S/C SP
34	35				25	26
VR901						VR902
(INPUT SELECTOR)					(VOLUME)