JVC AV-25MXP6/V Main PWB Circuit Diagram AV-21MXP6/V 1/4 2/4 SHEET1, No.YA4762-72-8No.YA476

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM [AV-21MXP6/V] (1/4) (2/4) SHEET1

ADJUSTMENT

CONNECTOR

	MAIN PWB ASS'Y (2/4)(FRONT LED)
CN00C	SCW-1645A-H2 [AV-21MXP6/V]

		IC801				POWER LED
IC302						(RED)
						D808
		C808	C806
			X
		100/16	C807	.1/16
					R822
		Y813			1K	S805	S804	S803	S802
		X
	C317	Y814	R823			R824
R327		0				470
39K	10/50		X
			R825

MAIN PWB(4/4)

(CRT SOCKET)

SHEET2

CN10T

CN00T

J808

S801

VIDEO-3

INPUT

J806

	J807
			J809
	R817
	X
		R630	R632
		270	270
	LC805	D814
		*8
C825	C826

SPEAKER

CN00S

220	220	220	220
R764	R765	R762	R763

5V

SDA

ECO IN	PW LED	REMOTE
1.8V

R821

R820

R819

R818

CN10A

470

330

220

180

CN00A

S V DET

VDO DET

KEYIN

1.8V

ECO IN

PROTECT

4.5/OTHER

5V

A MUTE 5V

3.58/OTHER

SDA

SCL

PW

S REDUCE

1.8V

PW LED

REMOTE

KEYIN	GND	12V
	V1.8A	12V

R3

D341

*3

D342

*3

.0015	.0015			R631			R633
		Y809		1K			1K
				Y810
		X		X
		C831
		0
GND	L3	V3	GND	A GND	L AOUT	R AOUT	B MUTE
		STB	3.3V	C615			C616
				1000/25			1000/25
		_
		3.3V

R816

75

MAIN PWB(3/4)

SHEET2

GND

3.3V_STB

8V A_VCC

A_GND

5V

12V

NECK

H_DRIVE

HFB

ABL

EW

P_ON/OFF

VDRA+

VDRB-

PROTECT

3.3V

32V

TU001

	D706			C777	C778
				.1	47/35
					R760
					220
					R761
					220
		IC702
		R984	R983	R982	R981
		47K	3.9	47K	3.9
				*1	Q981
				Q982
R796	R985	Q984
10K
	4.7K	*1
				Q983
Q704
*1	R986
	4.7K

K103

L001

X

K101

R101

C101

10

.0047

L003

C111

220/16

C106

CF101

C110

18p

R005

X

.1

75

L101

Y008

C001

C002

10/50

6.8K

R104

180

4.7K

X

.01

L002

R107

C004

R102

D101

470/16

R001

C003

C109

2.2K

2.2K

C107

220

.1

.0047

.01

C007

56p

R002

220

2.7K

Q101

R109

R110

C008

56p

22

D102

C005

R003

3.9K

R103

R105

Y004

Q102

*5

X

0

Y003

.0022

C103.0047

C10410/50

R106100

C102.0047

R1082.2K

Q103

*5

R004

C006

33/50

C108

.0047

C105

.0047

27K

SCL

			D707			R794		Q706
		5V	*3			2.2K
								C792
								0.1
	SCL0		Q708			Q707		Q705
							*1
			*2
	SDA0
			R795					R783
R976								10K
			100K
1K
	3.3V_STB
Q791									R759	3.3K
*1		PW
		SCL0
		SDA0
C793								R793	100
10/50				R790
				1K
	P_ON/OFF						D713
	V1.8A
	1.8V
								C701
		1.8V						.22
								C702
D982								.22
D981	CONT	R792	L703	470/10
		33	*4
					C704		C790
				C703		.1	27p
		8V
	A_VCC
		5V
	A_GND					C705
						7p
		5V		C706
			L701
					7p
		12V						X701
		NECK
	H_DRIVE					R756		10K
		NECK
		HFB		C785		X
		CONT
		ABL		L718				C784
		EW						.47/50
	P_ON/OFF		C707	.1		C709
						.01
	VDRA+					C710		R701
	VDRB-					6800p		12K
			C708	C711
	PROTECT		47/16	2.2/50
		3.3V
				C712		.22
	4.5/OTHER			C713		10/50
	3.58/OTHER
				C714		.022
		EW		R702		X
				C715		.001
SF102		VDRB-		R703		100
				C716		.001
		VDRA+
						R704	100
SF101							C718
*
								R705
								39K
				C719		.01
				R706		220
				C720		.001
				R707		22K
				R708		10K
								R709	C721	X
								1M
								D701	C794
		SCL						*3	X
									R710
		SDA

	D714
C775	220/16

R758	3.3K	R757	4.7K
		C776	.1

1		1
C723		C724
5.6K	10K	5.6K	10K	C795	C725	.1
R711	R712	R713	R714

R755

R753

R750 10K

W-A1

R740 15K

1.2K

R789 X

1.2K

Q612

*1

R787

4.7K

*3

.22

22/50

C770 .1

.22

3.3K

3.3K

220

4.7K

*3

*3

1/50

D709

C772

C771

R747 100

1K

R744C768

R745

R743

R741

R785

D711

D712

C767 .22

R736 100

R777 100

R776

15K

C783

R754

220

R752

100

R751

100

R749

1K

R748

2.7K

R771

220

R742

220

IC701

*

MAIN MICRO COMPUTER/TELETEXT DECODE/

IF VIDEO RGB SYNC DEF PROCESS

C727

3300p

1

C782 1

R738

100

C736

.01

C744

.1

R737

100

C739

1

R739

100

D710

*8

R715

390

C729

2.2/50

C732

2.2/50

C781

D702

*8

C745

.1

C737

.1

C738

1

C740

.1

C743

10/50

C742

10/50

C726

10/50

C728

.1

C730 22/50

C731 .1

L702

C734 .1

R772 5.6K

R773 10K

5.6K

R775 10K

C735 .1

R786

75

D703

*8

5.6K

R717 10K

R718 5.6K

10K

R768 D704

*8

R769 C741

.1

R774

R716

R719

100

0

R770

0

Y707

C766

.22

C764

X

		C763
		X
C761			C762
.1			100/16
		C760
		.22
		C758
		.22
R735
100
R734			D715
100			*3
R733		D716
100		*3
		D717			R720
R732					68K
		*3
1K		C717			R721
C757		1/50			47K
560p
		C756		R731		D708
				1K		*3
		.1
					C755	L706
					10/50	*4
C779		C753	C754
10/50		.1		.1
R779	100			D753
					*8
R780	100		C752		.1
			C751		.1
R781	100
				D751
R782	1.2K				*8
R729	4.7K
		C780
		.1
	C750.1
						C786
	C749.1					X
						C787
	C748.1					X
		C788 X
C746						L716
.1						*4
	R728		100
		R727		560
R726		27K
						R725
						X
	R724		X		Q702
					X
	R778		X
			R722			R723
			X			X
						5V	HFB	H_DRIVE	V	U	Y

D343

	*3
L301
		C304
	10/50
L305
		C310
	10/50
R309	220
R312	220
L302
C306			C307	0.01
10/50
4.7K			R311	4.7K
R310
R314		*1	Q305
22K
	Q306	*1
R313
82K

R307

22K

K701

ABL

	10K
R617	R618
X

C305

0.01

C311

0.01

C318

27p

X301

R308 33K

C302

27P

IC601

Q341

*2

Y942	Y941
X

C341

100/16

D301	R319
*3	4.7K
	C314
	IC301

27P
C303	10K
	R317

C602	10/50	D602
		X
		C611 X

R344

22

D345

*3

10K	10K
R316	R315

L_AOUT

C605

.22

R961

10KY909C1 X

5V S_V_DET

Y912

						12V
						SCL
						Y1/CVBS1
						SDA
						W-C
						GND
						5V
						VDO_DET
	L304
						L1
						R1
R320	3.3K	R321	4.7K	C316	100/16	GND
C315
0.047				R318		CVBSO/PIP
		Q307		4.7K
		*2

C313 C312

0.0110/50

			V2/Y
		L306	GND
			PB
C309	C308	L303	GND
0.01	10/50
			PR
		V	GND
		Y
		U
			L2
			R2
		NECK
		PB	GND
		GND
		V2/Y
		PR
	Y943		BASS

X3.3V_STB

3.3V

A_GND

Y944

5V

V_OUT

L_OUT

GND

R_OUT

R AOUT	BASS	S REDUCE	OFF MUTE
			D605
			X
	D604
	X
	C614	X	W-A

					J801
W-C1
C827	Y801	R801		Y819
0	X		75	BW
	Y802
		X
LC801
			D817
			*8
	C821
				C822
W-G	W-G1
C828					R804
0	Y803		X
					75
LC802
	Y804		D810
C829			X *8
0	Y805		X	R805
	LC803				75	J802
	Y806		X
			D811
C830			*8
0
	LC804
					R806
					75
			D812
			*8
	C823					J803
	.0015
				C824
				.0015
						J805
						X
			R807	C804
			100
				470/16
R809
220					R815
					75
	Q801			D813	J804
				*8
	C809			R810 390	R811
	X		C802		82K
			10/50
	C810		C803	R812
	X		10/50	390	R813
					82K
			Q803
			*6
					Q804
	Q805				*6
	*2		R814
			100K

VIDEO-1

S-VIDEO

INPUT

VIDEO-2

COMPONENT VIDEO INPUT

OPEN

OUT PUT

ABL

L3 R3 L OUT R OUT

8V 5V V OUT L1 R1 V3 V2/Y L2 R2 Y1/CVBS1 C1 A L A R CVBSO/PIP

	R601
P_R	3K

R637 0

10K X C603 .22

c21244001a.001.1/2

C722

R767

5V

3.3V

3.3VSTB

A L

A R

12V

SCL

SDA

GND

A B

P R

P L

GND

BMUTE

GND

ON/OFFP

A VCC

12V

5V

OFFMUTE

R766

X

Q701

X

X

X

GND	MUTE	P L	A_B	X
				R602
	A_			3K

R638 X

R639 0

D610 *3

R604	R605		C604	.22	C612 X
	R619	X	R606	2.2	R625 X

C606

.22

R607

2.2

D606 X

R640

1K

							CF702	CF701
			Y711	C773	Y722		X	X
				.1
			Y710		Y721
			BW		X
			Y709		Y720
			Y708		Y718
					X
			Y706		Y717
	K702
			Y705		Y716		Y968
	K651
			Y704		Y715		Y962
							X
	K105		Y703		Y714		Y961
					X		X
	K104		Y702		Y713		Y824
			X				X
	K102		Y101		Y712		Y812
					X		X
GND	GND	GND	GND	GND	GND	GND	GND

NOTE) 1. Refer to the part list for the part number of IC701 and IC702.

2.Refer to page 2-33 for voltages of this circuit diagram.

3.Refer to page 2-35 for waveforms of this circuit diagram.

Y963 X Y964

Y610

X

Y611

X

CN00M

BASS PWB

SHEET9

CN00M

C662
10/50	D607	*3
				10K	R612 100K		R613 X	R614 100K	R615 X
				R611	100/16
D603		Q601		C610
*3		*2
C607				Q602
			R649	*2
220/16						Q603 *6	Q604 X	Q605 *6	Q606 X
			1K
		R609		R610
C608		27K	C609	100K
220/16			33/50
!								D608	D609
								X	X
CP650
				R623	R620
				33K	10K	R621
						2.2K
			R622	Q607
			10K	*1	Q608
					*1
						C613		C617
			R624			10/50		X
			68K

R634	R635	R636
390	X	390
Q609 *6	Q610 X	Q611 *6
	C661
	100/16

IC701	Refer to
	NOTE
SF101

MAIN PWB ASS'Y(1/4) SCW-1645A-H2 [AV-21MXP6/V]

(No.YA476)2-72-8(No.YA476)