JVC Comprehensive Guide for KD-LH401 Car Stereo System

Standard schematic diagrams

Main amplifier section

TU1

QAU0203-002

CN141

QGA2006C1-04

IC201

FL

RL

FR

J321

QNN0490-001

R331	820	R332	180
R351	820	R352	180
R321	820

J1

QAM0556-001

PLLCE

PLLDA

PLLCK

PLLDI

MRC

L1

CF

4.7u

C81

4.7/25

C91

4.7/25

C1 0.047

D1 MA111-X

D2

MA111-X

C2 0.01

C3 47/10

C4 47/10

B5 56P

C5 100/10

C82 0.015

C92 0.015

C6

100/10

C10

C11

100/10

R2

Q5

27

R5

22

2SB624/4/-X

R4

39K

C7

0.047

330P

R1

R6

22

47K

C8

47K

R9

Q6

2SB624/4/-X

0.1/50

R7 47K

MA111-X

MA111-X

R3 10

C9

D3

D4

R141

R151

47K

47K

C141

C151

R142

470

C142

0.0047

0.0047

0.47

LIN.L

LIN.G

LIN.R

R81

10K

R91

10K

IC161

C83 820P

C93 820P

TDA7404D-X

Q81 2SD601A/QR/-X

2SD601A/QR/-X

R82 27K

27K

TU.L

C161

TU.R

1/50

R92

C181

Q91

R162

1K

1/50

CD.L

C162

CD.R R182

1K

1/50

C182

R163

0

1/50

R83

R93

CH.L

C163

4.7K

4.7K

CH.R R183

0

1/50

C183

1/50

LIN.R

C184

1/50

LIN.G

C165

1/50

2.2/50

LIN.L

C164

0.022

C71

1/50

R71

1K

M62449FP-X

C212 2.2/50

C211

0.0027

C210 0.0018

C209 0.0068

C208 0.0047

C207 0.015

C206 0.012

C205 0.039

C204 0.027

C203 0.1

C202 0.082

C201 2.2/50

C213 4.7/25

R166

R186

10K	C166
10K	10/16

C214

0.047

C232

2.2/50

C231 0.0027

C230 0.0018

C229 0.0068

C228 0.0047

C227 0.015

C226 0.012

C225 0.039

C224 0.027

C223 0.1

C222 0.082 C221

2.2/50

C215 0.047

C216 10/16

Q271

UN2211-X

LPF2
C273	0.033	R274	1M
C274	0.027
C275	0.027	R275	1M
Q272
UN2211-X
LPF1		R276	47K
D253
MA111-X
C259
47/6.3
SUBM
Q252
UN2111-X

						RR
IC271
CD4066BPW-X
		C272	C255	47/16	R251	100K	100/6.3			R257	100K
							C253	R256	10K
R272	1M	0.0056									2.2/50
R271								R255	10K		C252
	1M	C271									R254
											0
		0.01
C276		R273	47K
0.01
C260
0.1

R341				820
	R258			R259	C257
	5.6K			15K
		C256			2.2/50
		0.082						R333	10K
					IC251		NJM4565M-WE	D331	MA111-X
0.0082		C251
R252	47K	R253	100K	C258	0.01	R260	47K

Q331

KTD1304-X

Q341

KTD1304-X
R343	10K	R353	10K
D341 MA111-X		D351 MA111-X		D321
R261				R262
820				180
Q251 2SD601A/QR/-X				R263
				4.7K
		D251
		MA111-X
		D252
		MA111-X

Q351

KTD1304-X

Q321

			KTD1304-X
			R322	180
			R342	180
R323	10K			C321	100P	C322	0.047
		100P	0.047
MA111-X		C261	C262	CN251

QGA2501C1-03

CN981

QGA2006F1-02

Q7

UN2211-X

FM/AM

SM

R52

R8	4.7K
10K

R10 3.3K

	Q55
R59	UN2111-X
4.7K
Q54	R61 0
2SD601A/QR/-X
R12	D5
39K
MA111-X

Q57

UN2111-X

Q56

UN2111-X

C73

560P

C72

RDSDA

12K

12K

47K

47K

IC71

SAA6579T-X

R164

R184

R165

R185

C167

47/16

C168 100/10

C169 0.0047

R170 2.2K

R171 2.2K

GND

R169 10K

R187

1K

C363

0.1

C361

4.7/25

R197

100K

C371

47/16

R361
22K	IC361
	NJM2160AV-X

					D981
R363					MA111-X
						C981	100P
33K
		RR		RL
C365			FL		R981	MA8062/M/-X
0.0015					0
					D982
	C367
	FR
	100/10
	C369
	1/50				C311
				R311
					0.47
				27K
				R301

R308
1K
Q302 2SD601A/QR/-X	R310	1K R309			RR-
				4.7/25	RR+
			27K		FR-	C305 0.1

	R305	0
C309	1/50
C319
0.022

IC301

LA47515

CN702 QGB2027M4-22S

R51

470

SQ

C51 0.47/50

9V

Q51 2SD601A/QR/-X

C52

0.1

R53 10K

R54	10K	Q52 2SD601A/QR/-X	R56	47K
				C54
				0.01
0.0047	R55	2.2K	R57
C53				39K

CD.L

R58
47K
Q53
UN2211-X
SEEK	SD/ST	C55	0.1

AFCK

D241

C243

MA111-X

0.047

R72

2.2K

R73

1K

RDSSCK

0.22/50

C74 0.01

C75 47/6.3

X71

QAX0263-001Z

R74 100

C245

R248

270K

D242

MA111-X

C76

47P

C77

82P

R11

10K

LEVEL

EQCLK EQDATA EQLA

R188

1K

R167

1K

R168

1K

C362

4.7/25

R198

100KC364

0.1

R177C383

100K 0.1

C372

100/10

C381

4.7/25

R178

100KC391

47/16

C382

4.7/25

R362

22K

R381IC381

22K NJM2160AV-X

	C370		27K		C301
C368	1/50				0.47	100P	100P
		47K	47K	47K
	47K
100/10
C366	R367	R366	R303	R313		C303	C313
0.0015
R364
33K
R383			47K	47K		100P	100P
33K	47K	47K
C385
0.0015	R386	R387	R304	R314		C304	C314
C387
100/10
	C389				C302
	1/50		R302		0.47
			27K
	C390		R312			C312
						0.47
C388	1/50		27K
100/10
C386

	C308		FR+	C315
Q301
UN2211-X			FL+
D301
	C307	4.7/25
MA111-X			FL-	C316
			RL+
R307	10K		RL-	C306

0.1
C317	100/16
C318
22/16
0.1
C320
0.022
0.1
C310	1/50
	R306
	0

R800

To CN50147K (SHEET 2)

C719 0.01

R728 0

R730 0

L703

47u

CD.R

Q707

UN2211-X

CDREQ

Q706

UN2211-X

SI/SO

SCK

CD8V

PON

PS

R773	47K	VOLMUTE R771
			R772
R774	47K
R775	47K
C709		MUTE
0.1		VOLDA	R776
R778	47K	VOLCK	R777
	47K

330

1K

1K

1K

PON

10K

ILL

DIM

TEL

PLLDI

PLLCK

PLLDA

PLLCE

FM/AM

CF

SEEK

AFCK

SD/ST

RDSDA

EFD-IN3

EFD-IN2

EFD-IN1

EQLA

EQDATA

EQCLK

EFD-OUT2

EFD-OUT1

0

1K

1K

1K

1K

1K

1K

1K

1K

1K

R755 10K

10K

10K

RA701

2.2K

R752 2.2K

R751 2.2K

R750 2.2K

R770

R769

R768

R767

R766

R761

R760

R759

R758

R757

R756

R754

R753

R749 0

R748 0

R982 22K

IC703 BR24L32F-W-X

R742

270

C705

R7400.047

270

TD

R893	1K	R892
			47K
C891 0.1 D892 MA111-X	D891 MA111-X	Q891	UN2211-X	R891	47K	R895 3.3K
C782	100/6.3	C781	0.22	C783	100/16	UDZS11B-X

			C384
			0.1	R382
	AMPSW			22K
	ILL
	R883	47K
			IC951
			BA6956AN
			EFD-OUT1
	TEL		EFD-OUT2
			D951
0.1	TEL-M		UDZS3.9B-X	R951 1K
			KICK
C895	UN2211-X		UN2211-X	C953 0.01
	Q895		Q951

0.0015

R384

33K

Q881

2SD601A/QR/-X

R882

4.7K

C881

22/16

D853

RB160M-30-X

C952

0.01

C951

220/10

C955

56P

R979

9.1K

C978

2.2/50

D854

100K

R852

2.2K

R853

2.2K

C852

0.1

R881

RB160M-30-X

IC901

AN80T07A

	C961
	3300/16
	D961
	1N5404-TU-15
	C962
	0.1
		D994
		RB160M-30-X
	QQR1378-002	D992
L961		RB160M-30-X
		D998

RB160M-30-X

D996

RB160M-30-X

R978

2.2K

R983

2.2K

CN901

QNZ0650-001

C994	RR-	FR-
100P
C992
100P
C998
100P
C996
100P

FL-	RL-	RR+	FR+	FL+	RL+	C993
						100P
						C991
						100P
						C997
						100P
						C995
						100P

D993

RB160M-30-X

D991

RB160M-30-X

D997

RB160M-30-X

D995

RB160M-30-X

Q705

C720 0.01

UN2211-X		Q704	UN2213-X
	C721 0.01

C722 0.01

Q703 UN2211-X

R779
		SUBM	R780
		LPF1	R791
R793	47K	LPF2	R792
R794	47K
R795	47K
R796	47K
			VPP
	R797
	10K

1K

1K

1K

			R245					C241	2.2/50
			12K
		Q241		R243	180K		R241	120K
		2SD601A/QR/-X				C242
						1/50
R246	390
R247	1K	C244	22/16	R244	22K		R242	47K

VOLDA VOLCK VOLMUTE

R790 47K

R789 47K

R788 47K

R747	0	KICK
R745	1K	DETACH
R741	10K
R739	10K
R737	3.9K	BUZZER
R735	3.9K	DISPCE
R733	3.9K	DISPCK
R732	1K	DISPDA
R731	1K	BUSI/O
R729	1K	BUSCLK
R727	1K	BUSSO
		SI/SO
R785	47K
R726	47K
R725	1K	SM
R723	1K	SQ

RD

MUTE

C703

470P

C701 220/10

D782

Q781 UN2111-X

D781

MA111-X

Q782 UN2111-X	14V
D851
RB160M-30-X

CN951 QGA2501F1-02

QMFZ047-150-T

	QNZ0664-001	QAL0536-001
	REMOCON	GND
	GND	REMOCON
	SBRST	VDD5V
	VDD5V	SBRST
	ACC5V	15V
	15V	ACC5V
To CN801	SBT	LEVEL
	LEVEL	SBT
(SHEET 3)	PS2	SBD
	SBD	PS2
	DISPSCK	10V
	10V	DISPSCK
	DISPCE	DISPDATA
	DISPDATA	DISPCE
	KEYDATA	DETACH
	DETACH	KEYDATA

CN701 QGF1041C1-16W

ACC5V

6.8K

R736

D702 MA8062/M/-X

R717

Q701

UN2211-X

6.8K	6.8K
R734	R738

MA8062/M/-X	MA8062/M/-X	MA8062/M/-X	MA8062/M/-X
D703	D704	D705	D706

47K		R718	22K	KEY
				Q702 UN2214-X
				VDD5V
				LEVEL
		R710		PS2
		2.2K
				DISPCK
				DISPDA
				DISPCE
				DETACH
MA8062/M/-X	MA8062/M/-X	MA8062/M/-X
D707	D708	D709

							AMPSW
VDD								R799
								47K
VSS	R764	1K	R762	1K				IC701
							UPD784217AGC268
	D715	MA111-X	D714 MA111-X
								D922
								MA111-X
R746	47K		R786 560	R787	560		SML-310LT/MN/-XSML-310LT/MN/-X
				D711		SML-310LT/MN/-X		D710 MA8062/M/-X
C704	0.01			D713 D712

R798

1K

R763

100

C717 47/6.3

R706 2.2K R707 47K

1K

820

10K

1K

1K

R712 1K

1K

2.2K

1K

R701

R702

R705

R708

R709

R714

R715

R716

KEY

TEL-M

ANT

BUSINT

PS2

CDREQ

RDSSCK

RESET

D701 MA111-X

X1

R704

10M

C708

220/10

X701

QAX0617-001Z

R703

47K

X702

QAX0401-001

C718

0.01

0.1

C707

IC702

IC-PST3433U-X

C713

8P

C714

27P

C715

27P

C716

22P

	R722		1K MRC
	R721		10K
	R720		4.7K
	R719		4.7K
	R724		47K
	R711
	47K
	R713
	47K
100/6.3			R841
	1/50		3.3K
C706	C841	BZ841 QAN0023-001Z	BUZZER

Q841

UN2211-X

C702	0.01				L701
					47u
					L702
					47u
C712	100P	C711	0.047	C710	220/10
			SI/SO	BUSSO	BUSI/O
					R805	10K
R801			22K
R802			100K
R804			47K	R803
				100

Q977 D901

2SB709A/QR/-X

MA111-X

R976

D902 MA111-X Q976

UN2213-X

6.8K

D852 RB160M-30-X

C9030.01

C902220/10

C9060.01

C90710/16

C90522/16

C908100/10

C901 220/10

PS

R977

18K

R851

4.7K

C851 0.1

C904

R901

PON

0.1

47K

PS2

ANT

BUSCLK

BUSINT

SCK

CH.R

CH.L

10

10

10

10

R921

R922

R923

R924

R925

R806

180

IC801

100K

HD74HC126FP-X

R807

L922

150u

330

R808

R809

22K

J801

C802

0.047

100

QNZ0095-001

D921

R810

47K

RB160M-30-X

C801

0.047

C923

0.047

C922

100/16

C924

2700P

R904

R902 5.6K

C909 22/16	R903
	L921
	4.7U
IC921	NJM2360AM-X

R926

47K

R927

	10K	2SB624/4/-X
		Q901
			C910
			0.47
		R906	R905	47K
		47K
	1K
		Q902
	UN2211-X
			DIM
			EFD-IN1
			EFD-IN2
			EFD-IN3
220/10
C921
			VR921
4.7K	R928	27K	47K

R980 4.7K

Parts are safety assurance parts. When replacing those parts make sure to use the specified one.

CN952

QJB005-040909

SHEET 1

2-2