JVC RX-8020-RBK Service manual

SERVICE MANUAL

AUDIO/VIDEO CONTROL RECEIVER

RX-8020VBK

Area suffix

RX-8020VBK

A/V CONTROL RECEIVER

CATV/DBS VCR1 TV AUDIO

DVD MULTIDVD

CD

CDR

TV/DBS VIDEO PHONO

TAPE/MD

VCR1 VCR 2

SURR/DSP

ANALOG/DIGITAL

DSP

SURROUND

OFF

ANALOG

BASS

DIRECT

BOOST FRONT•L

231

MENU

SOUND

TEST CENTER SUBWFR

564

ENTER

SURR•L SURR•R

DIMMER

7/P

89

SBACK•L SBACK•R

DIGITAL EQ

MUTING

0

10

RETURN FM MODE 100 CATV/DBS CONTROL

CH/

LEVEL

TV VOL

TV/VIDEO

TEXT

PLAY

MENU

DISPLAY

REC

/REW

PAUSE

SET

DOWN – TUNING – UP

SLEEP

CONTROL

STOP

RM-SRX8020J

REMOTE CONTROL

FM/AM

USB

INPUT

FRONT•R

+10

+

VOLUME

EXIT

FF/

SPEAKERS ON/OFF

SUBWOOFER OUT ON/OFF

PHONES

STANDBY

STANDBY/ON

1

2

FM/AM TUNING FM/AM PRESET FM MODE

SURROUND

Contents

USB AUDIO

PUSH OPEN

DSP

S-VIDEO VIDEO

MEMORY

SURROUND/DSP

OFF

VIDEO

L—AUDIO—R

INPUT

ANALOG/DIGITAL

INPUT ATT

RX-8020V

AUDIO/VIDEO CONTROL RECEIVER

SOURCE NAME

TV SOUND/DBSVIDEOVCR 2VCR 1DVDDVD MULTI

SOUCE NAME

FM/AMUSB AUDIOTAPE/MDCDRCDPHONO

DIGITAL

EQ

EFFECT SETTING

CONTROL

DOWN UP

UJ ---------- U.S.Military

MASTER VOLUME

LEVEL ADJUST

ANALOG DIRECT

BASS BOOST

Safety precautions --------------------------------------------------------1-2 Disassembly method -----------------------------------------------------1-3 Adjustment method -------------------------------------------------------1-9 Self-diagnose function-----------------------------------------------------1-10 Description of major ICs -------------------------------------------------1-12~31

No.21161 Oct. 2002

Adjustment method

Tuner section

1.Tuner range FM 87.5MHz~108.0MHz AM(MW) 531 kHz to 1 602 kHz (at 9 kHz intervals) 530 kHz to 1 600 kHz (at 10 kHz intervals)

Power amplifier section

Adjustment of idling current

Measurement location B2204-B2205(Lch) , B2213-2214(Rch) Adjustment part VR787(Lch) , VR788(Rch)

Attention This adjustment does not obtain a correct adjustment value immediately after the amplifier is used (state that an internal temperature has risen). Please adjust, after you turn off amplifier and internal temperature falls.

RX-8020VBK

1.Set the volume control to minimum during this adjustment.(No signal & No load)

2.Set the surround mode OFF.

2.Turn VR787 and VR788 fully counterclockwise to warm up before adjustment. If the heat sink is already warm from previous use the correct adjustment can not be made.

3.For L-ch,connect a DC voltmeter between B2204 and B2205 (Lch) And,connect it between B2213 and B2214(Rch).

4.30 minutes later after power on, adjust VR787 for L-ch, or VR788 for R-ch so that the DC voltmeter value has 1mV~10mV.

* It is not abnormal though the idling current might not become 0mA even if it is finished to turn variable resistance (VR787,VR788) in the direction of counterclockwise.

Heat sink

Rch amp. board

VR788 (Rch)

Lch amp. board

B2213, B2214

VR787 (Lch) B2204, B2205

1-9

RX-8020VBK

Self-diagnose function

1. Detection of abnormal power supply and voltage

When the power is turned ON, if an abnormality is detected during the signal input at the A/D port (IC901, pin 2-5, 7) for one second continuously, the status will become STANDBY mode immediately.

When the power is turned ON again, detection of abnormal power supply and voltage will not be carried out during the first 4 seconds.

Given below is a list of threshold values at the detection of abnormalities.

Pin 2 Micro-computer+5V Pin 3 Digital+5V Pin 4 Analog+5V Pin 5 +12V Pin 7 Tuner+9V

At abnormal state (Low voltage) Analog value 0 - 2.2V Analog value 0 - 2.2V Analog value 0 - 2.2V Analog value 0 - 2.2V Analog value 0 - 2.2V

At normal state

Analog value

2.2 - 2.8V Analog value

2.2 - 2.8V

At abnormal state (High voltage) Analog value

2.8 - 5.0V Analog value

2.8 - 5.0V

2. Initial setting on ship

To gain the initial setting on ship, put the power plug in the socket while pressing "DOWN" key and "UP" key together simultaneously, then turn the power ON.

3. Test mode

To enter the test mode, put the power plug in the socket while pressing "EFFECT" key and "UP" key together simultaneously, then turn the power ON.

Workings of test mode: All FLs are turned ON for 3 seconds. (the FLs, which are divided in two groups, are turned ON alternatively) A Faster volume UP/DOWN operation can be achieved with the remote controller.

When the power is turned OFF, the test mode will be released. The FL display returns to normal after the three seconds. Then the STANDBY LED is turned ON (flashing

ON and OFF for each one second) to show the present status being a test mode.

1-10

RX-8020VBK

4. Self-diagnose

To enter the self-diagnose mode, put the power plug in the socket while pressing "SETTING" key and "UP" key together simultaneously, then turn the power ON.

While the working status is being displayed, the each item can be switched with the UP/DOWN key operation.

When the power is turned OFF, the self-diagnose mode will be released. During the self-diagnose mode, the STANDBY LED is turned ON (flashing ON for one second then OFF for

three seconds). FL transient display will be carried out as follows. When the transient display is not carried out,

normal display/workings are carried out.

S0001 200202209

V

D1

D2

D3

D4

D5

D6

D7

e

r

0

2

/

0

D

S

P

R

A

N

A D D D D D D

U F F F F N

G

U

N

P

C

A

C

A

C D D D A

A M

P N

G

U

N

1 2 2 2 3 2 3 2 3

N

G

L

I

G

I

G

I

G

I

G

I

G

I

G

I

N

L

O

s

3

s

4

s

4

s

9

D

L

O

M

3

3 T T T

S S

S

-

C

E

G D

L

O

/

0

.

/

0

.

/

0

.

/

0

.

/

0

.

/

1

.

/

1

.

/

2

.

/

2

.

D

Information on VERSION of system microcomputer (IC901) Example : 2002/2/20 9th ROM

1

.

0

Display the local version (IC581)

0

Example : Ver_1.00

2

/

1

Display the local creation date

0

Example : 2002/2/10

e

v

4

Display the DSP version (IC511)

1

Example : DSP Rev41

O

G

x

T

A

L

T

A

L

T

A

L

T

A

L

T

A

L

T

A

L

C

2 4 8 6

A

C

E E

E

A

C

0 0 0 0 0 0 0 0 0

A

K

H

k

H

k

H

k

H

k T

A

K

X S

S

A

T

K

L D

T

A

Display the input sources

x

1

However, since it is the source of DIR processing, actual source may be

2 3

contradicted.

4

Example : ANALOG08

5

Display the input Fs

z

Example : Fs48kHz

z z z

Display the input format Example : PCM

M D

Display the input channel Example : 2/0.0

t

M

1-11

Block diagrams

5

LVA10336-6

COMPU LINK TEXT LINK

CN393 CN392

RX-8020VBK

7.1ch Preout

STB

Monitor out

LVA10220-1

LVA10221-1

DVD

FRONT Y/C

CN244

TEXT

DATA

(Refer to the following page.)

CN240

S video

LVA10338-1

4

Vido5, 6

CN200 CN204 CN206

Vido5, 6

(Refer to the following page.)

CN242

TEXT

LVA10336-5

FRONT VIDEO

Video

LVA10336-4

DSP CLK

C

RL/RR

CN587 CN581

SBL/SBR

L/R

AUDIO

TEXT

CN243

CN501 CN205

MONI

Vido5, 6

AUDIO

IC389IC388

SBL/SBR

IC390

SW

IC380

SBL/SBR

IC399

IC384

L/R

IC396

IC381

L/R

C/W

IC397

IC382

C

RL/RR

IC398

IC383

RL/RR

L/R

CN731CN732

C

Lch

Rch

RL/RR

LVA10220-2

Q761 Q763

Q762 Q764

LVA10220-3

CN711

CN712

CN701

CN702

R

L

CN721

CN881

FW881

LVA10338-7

LVA10221-2

RY831

L

RY832

CN813

CN823

R

L

SPK1

R

L

SPK2

R

DSP

(Refer to the following page.)

3

DATA

CN313 CN371 CN416

CPU

IC901

CLK,DAT

MAIN_STK,

Video audio

(Refer to the following page.)

V SIG

LVA10337

LVA10336-3

FRONT AUDIO

CN381

V SIG

AUDIO

DVD CENTER

DVD REAR

DVD SUB WOOFER

IC386

Cch

CN722

Q1751 Q1752

CN713

CN703

RR

RL

CN723

C

RL

CN824

RR

CN814

RY851

RY852

CENTER

REAR L REAR R

2

CN400

DATA

TUNER

IC 301

CN101 CN301 CN303 CN601 CN201 CN241

1

CN311 CN351

TUNER

MAIN_STK,

EQ

PHONO

CN111

TUNER

DATA

SOURCE SELECTOR

CD

L/R

AM/FM DET

IC102

PLL

IC121

V SIG

IC 302

P.B

TAPE

AUDIO

REC

TAPE

CLK,DAT

IC 303

CDR

TUNER

RF 101

P.B

LVA10336-2

DVD REAR

IC 304

REC

CDR

MW RF

& OSC

T111

DVD

REAR

FM

AM

CN361

LVA10218-1

CN406

Y/C VIDEO AUDIO

USB

FL DISPLAY

DI400

DVD

CENTER

DVD

SUB WOOFER

USB DAC

IC 410

LVA10336-1

RLch

RRch

LVA10221-5

LVA10220-4

Q1851 Q1853

Q1852 Q1854

CN715

CN716

CN705

CN706

LVA10009

SYSTEM CONTROLLER

CN410

ABCD E F G

IC 400

KEY

2-1

Standard schematic diagrams

Power supply section

RX-8020VBK

Power trans1 board

Power trans2 board

Power/fuse board

5

PW20

PW17PW27

PW26

PW18

PW19

PW30

F1

TA1

TA2

T2

QQT0281-004

D52

11ES2-T4

15k

PW10

PW11

PW12

PW13

PW14

PW15

PW16

D57

1SS133

R53

R52

6.8

3.3k

MTZ12JC

C1

0.0047

RY1

QSK0098-001

Q51

2SD2395/EF/

C53

0.0047

D55

PW21

PW22

PW23

PW24

PW25

R54

820

C54

470/16

Q53

KRC105M

KTD863/Y/

C55

Q52D53

0.0047

D56

MTZ6.2JB

F4

VS1

QSW0812-001

PW28

PW29

PW40

131

132

CN811

Power supply board

4

Sheet 2/10

R61

F61

F62

8.2

113

112

111

123

122

121

134

133

Sheet 9/10

CN55

CN402

C69

0.047MY

C68

0.047MY

3

Sheet 3/10

2

Relay board

CN82

CN72

CN71

R74

100k

C74

1/50

D75

MTZ8.2JC

Q74

KTC3200/GL/

R73 D74 C72

KTA1046/Y/

C73

22k

Q71

22/50

MTZ33JC

CN56

FW51

D61

10E2-FD

D63 10E2-FD

C65 C66

3300/35 1000/35

D73

11ES2-T4

3.3k

R72

C71

22/50

100/63

11ES2-T4

D62

C63

0.1MY

C70

220/50

D71

11ES2-T4 D72

11ES2-T4

C62C61

0.1MY0.1MY

D64

11ES2-T4

TH71

QAD0095-4R7

D51

11ES2-T4

C51

0.0047/100

11ES2-T4

C52

470/63

F2

D54

R51

EP51

SHEET

NUMBER

1/10

1

2/10 3/10 4/10 5/10 6/10 7/10 8/10 9/10

10/10

POWER SUPPLY MAIN AUDIO AUDIO SIGNAL / VIDEO SIGNAL INPUT DVD AUDIO AMP (FRONT CHANNEL) AUDIO AMP (CENTER, REAR CHANNEL) DSP SYSTEM CONTROL TUNER

ABCD E F G

CIRCUIT DESCRIPTION

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

SHEET 1/10

2-3

4

3

2

5

Main & Speaker terminal section

Sheet 7/10 Sheet 7/10 Sheet 7/10Sheet 6/10 Sheet 6/10Sheet 5/10 Sheet 5/10

Sheet 1/10

Main board

CN801

C805

C801

D801

30DF2-FC

D803

30DF2-FC

C802

D802

30DF2-FC

D804

30DF2-FC

CN703

C807C808

R801R802

100k100k

6800/716800/71

CN701

MTZ18JC

RX-8020VBK RX-8020VBK

Speaker board

C845

C833

220p

R831

12

RY851

FW931

D831

1SS133

R832

12

1SS133

D832

R851

12

1SS133

D851

C885

0.047

R852 12

1SS133

D852

R888

0.047

R887

CN721

C816 47/25

D816

R816

3.3k

12

R815

Q811

3.3k

R812

Q812

KTC3200/GL/

2SD2395/EF/

D811

R814

10k

47k

R813

R811

C811

0.0047

CN702

CN705

CN723

10/25

C824

R826

Q825

KTA1268/GL/

10k

R825

R823

100k

130k

R824

Q824

KTC3200/GL/

10k

47/16

Q823

KTC3199/GL/

C823

Sheet 3/10

CN831

R841

R842

R843

R844

R845

1SS133

D825

CN706

CN813

0.45

L844

B124

0.45

L845

B125

0.45

L843

100k

82k

100k

82k

12

R871

D871

1SS133

RY871 QSK0109-001

CN881

Headphone jack board

FW881

R91

R92

CN824

B123

CN814

470

C91

C92

470p470p

470

RY831

RY832

CN823

RY852

J91

0.022

R833 10

C835

0.022

C834

0.022

220p 220p

C836

0.022

10

C842 C841

R834

C846 220p

C847 220p

1010

R837R838

C837

0.022

C839

C838

0.022 0.022

C848

220p

C891

220p

R885

10

C886

220p

10

C888

C890

C892 220p

C887

220p

10

C889

C893 220p

C850

4.7/50

D841

MTZ5.1JC

R855

3.9k

D845 1SS133

D846

1SS133

R867

10k

220p220p

C843C844

C883 330p

C881 330p

C884 330p

C840

0.022

S831

Q833

KRC109M

Q830

KRC109M

R865

4.7k

ST831

ST851

22k

C851

4.7/504.7/504.7/50

Q835

KRC109M

D843

1SS133

D844

1SS133

D842

1SS133

22k

R862

R856

R859

6.8k

R857

6.8k

R860

R863

R864

4.7k Q831

KRC109M

R861

R858

4.7k

Q832 KRC109M

C852

C853

R866

4.7k

Q836

Q834

KRC109M

Sheet 3/10

1

FRONT Signal

Parts are safety assurance parts.

CENTER Signal

When replacing those parts make sure to use the specified one.

REAR Signal

SHEET 2/10

2-4

HABC DEFG

Audio section

RX-8020VBK

Audio board

R916

R915

3.9

C972

0.0047

D971 MTZ10JC

R971

R973

12

3.3k

Q951

2SD2395/EF/

C951

100/25

D951 D961 MTZ13JC

5

2SD2395/EF/

C971 100/25

Q971

0.0047

C952

R953

R951

2.2k

12

C961 100/25

Q961

KTA1046/Y/

MTZ13JC

0.0047

C962

R963

2.2k

R961

R943

R941

R942

12

C921

2.7k

100/25

D921

MTZ5.6JC

Q921

2SD2395/EF/

12

2SD2395/EF/

C941

100/25

D941

MTZ5.6JC

Q941

0.0047

C942

C922

0.0047

R921

R923

2.7k

R922

12

470/16

C931

D931

MTZ6.2JC

Q931

2SD2395/EF/

0.0047

C932

R914

R913

3.9

R933

2.7k

R932

R931

33

R918

18

Sheet 1/10

D902

11ES2-T4

D901

11ES2-T4

D900

11ES2-T4

Q908

KRC105M

CN81

4

FW831

CN301

10k

4/8_OUT

10k

R965

R966

R967

DVD_S/C

VCR1_S/C

STANDBY_LED

DSPRESET

DSPSTATUS

DSPCOMMAND

R968

VCR2_S/C

DSPCLK

R969

DBS_S/C

DSPREADY

MAIN_STB MAIN_CLK MAIN_DAT

-15V

CN303

+15V VOL_STB VOL_CLK VOL_DAT

Sheet 4/10

3

FR_RELAY C_RELAY

Sheet 4/10

To CN111

2

Sheet 10/10

To CN112 Sheet 10/10

SUR_RELAY SrBL_MUTE SrBR_MUTE S_MUTE SW_MUTE

CN101

TUNER_DATA TUNER_CE TUNER_CK TUNER_MUTE

TUNED STEREO

CN102

RDS_ST RDS_DATA RDS_CLK

R936 R935 R934

R938 R939

R937

R999

R944

220

R945

220

R946

220

R954

220

R955

220

R956

220

1SS133-T2

F1_RELAY

D955

F2_RELAY

D956

1SS133-T2

22

R975

C975

470/6.3

FL991

220

10k

220 220 220

QQR0590-001

FL992

QQR0590-001

C991

0.0056 C992

0.0056

R991

R992

4.7k

VIDEO1

VIDEO2

CN201

VIDEO3

VIDEO4

OSD_CS

OSD_DAT

OSD_CLK

VIDEO5

VIDEO6

CN241

DVD_S/C

DBS_S/C

VCR1_S/C

VCR2_S/C

R908

3.3

R940

4.7k

5.1k

3.3k

5.6k

R994

R996

R998

R979

0.022

R977

4.7k

6.2k 13k

15k

D975

1.5

C902

X901

D976

1SS133-T2

8MHz

D977

D978

D979

OSD_DAT OSD_CS OSD_CLK M_COMMAND M_STATUS M_CLK M_RESET M_CS

M_BUSY

TUNED

STEREO

RDS_ST

MN101C49GJY

TUNER_CK

PROTECT

4/8_IN

TUNER_MUTE

TUNER_DATA

C993

100p

IC901

TUNER_CE

RDS_DATA

D993

1SS133-T2

RDS_CLK

R976

R978 R993

R995

R997

330

R903

100/6.3

C985

0.01

IC903

IC-PST9139

22k

220

R925

R926

DSPCLK

DSPSTATUS

R910

220

R927

R928

R929

DSPREADY

DSPRESET

DSPCOMMAND

D904

R911

1SS133-T2

4.7k

Q901

22k

KRC107M

CN933

C904

2.2/50

CN601

C903

C994

270P

2200/6.3

C901

C905

VIDEO6

VIDEO_S/C

S_MUTE

SW_MUTE

R924

10k

MAIN_DAT MAIN_CLK MAIN_STB VOL_DAT VOL_CLK VOL_STB VIDEO4 VIDEO3 VIDEO2 VIDEO1

HP_RELAY

VIDEO5 SrBR_MUTE SrBL_MUTE SUR_RELAY C_RELAY F2_RELAY F1_RELAY HP_RELAY

SUR_RELAY

4/8_OUT

PROTECT

F1_RELAY F2_RELAY

C_RELAY

4/8_IN

R930

R980 R981 R982 R983 R984 R985 R986 R987

10k

Q907

KRC105M

220 220 220 220 220 220

220 220

Q906

C981

C982

330p

KRC105M

M_CLK M_COMMAND M_STATUS M_CS M_BUSY M_RESET STANDBY_LED VCR_S/C

330p

C984

C983

330p

Q903

Q904

KRC105M

Sheet 2/10

CN400

Sheet 9/10

EP901

CN931

Sheet 2/10

CN932

Sheet 4/10 Sheet 4/10 Sheet 8/10Sheet 5/10

TUNER Signal

1

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

ABCD E F G

SHEET 3/10

2-5

RX-8020VBK RX-8020VBK

Audio / Video Audio / Video / S video signal input section

CN200

Audio input board

C301

R301

2.2k

4.7/50

CDR.PLAY-R

100k100k

CD-R

REC-R

PLAY-R

CDR.REC-R

C302

R302

2.2k

4.7/50

J301

QNN0056-001

J302

QNN0056-001

J303

QNN0058-001

5

C333

C321 C322

220p

C323 C324

220p

C325 C326

220p

C327 C328

220p C329 C330

220p

C331 C332

220p

100k100k

IC304 BA15218F-XE

C334

R334

220p

R324

470

220p

R326

470

220p

R328

470

220p

R330

470

220p

R332

470

220p

C363

4.7/50 R365R366

C364

4.7/50

R333

470 470

R323

CD-L

470

R325

REC-L

470

R327

PLAY-L

470

R329

CDR.REC-L

470

R331

CDR.PLAY-L

4

470

C361

4.7/50

100k100k

R363R364

R361R362

C362

4.7/50

R305

C309C310

47k47k

100p100p

C303C304

R303R304

100p100p

620

100/10

C314 C313

100/10

R306

620

R335

68

C335

22/25

IC302

TC9164AF-X

C336

22/25

R336

68

QGB1214K1-14S

NJM4580D-D

CN351

IC301

NJM4580D-D

CD-R

CD-L

V.SIG.R

V.SIG.L

C305

0.0018 0.0068

R307

C306

0.0018 0.0068

39k 470k

R308

PLAY-R

CDR.PLAY-R

CDR.PLAY-L

PLAY-L

DVD_RS

DVD-LS

39k 470k

R310

TUNER-R

V.SIG.R

V.SIG.L

TUNER-L

C307

R309

C308

VOL_STB

VOL_CLK

VOL_DATA

REC-R

REC-L

C311

4.7/50

C312

4.7/50

100k100k

CDR.REC-R

CDR.REC-L

Sheet 5/10

3

Video audio board S video board

R371

R373

TV/DBS-L

R375

VCR1.REC-L

R377

VCR1.PLAY-L

R379

VCR2.REC-L

R381

VCR2.PLAY-L

470

C371 C372

220p 220p C373 C374

220p C375 C376

220p C377 C378

220p C379 C380

220p C381 C382

220p

R372

470470

DVD.F-RDVD.F-L

R374

470

J371

TV/DBS-R

220p

R376

220p

R378

220p

R380

220p

R382

220p

470 VCR1.REC-R

470

VCR1.PLAY-R

470 VCR2.REC-R

470 VCR2.PLAY-R

QNN0056-001

J372 QNN0056-001

J373 QNN0056-001

2

68

R385

DVD.F-R

TV/DBS-R

TV/DBS-L

USB-L USB-R

VCR1.PLAY-R

VCR1.PLAY-L

C385

R393

C393

R391

5.1k

0.0012

C395

10k

120p

R395

5.1k

C394

R396R392

5.1k

5.1k C396

R394

120p

10k

IC372

BA15218F-XE

IC372

BA15218F-XE

C397

USB-L

10/50

R397 100k

R398 100k

USB-R

C398

10/50

C391

10/50

C392

10/50

22/25

IC371

TC9163AF-X

C386 22/25

68

R386

DVD.F-L

VIDEO-L

VIDEO-R

470

R387

R388

R390

470

R389

470

VCR2.PLAY-R

VIDEO-R

VIDEO-L

VCR2.PLAY-L

VCR1.REC-R

VCR2.REC-R

VCR2.REC-L

VCR1.REC-L

V.SIG.R

V.SIG.L

C389 560p

R315

330

47/1647/16

C315

R311

R200

R312

R316

C316

330

IC303

BA15218F-XE

C341

10/50

R343

100k100k

R341R342

R344

C342

10/50

BA15218F-XE

C339

560p

TUNER-R

TUNER-L

CN311

QGB2510K1-11

IC303

100k100k

VOL_CLK

VOL_STB

VOL_DATA

C343

10/50

100k 100k

R346 R345

C344

10/50

J201J202

QNN0078-001QNN0011-001

J203

QNN0011-001

75

R201

R202

75

R203

75

R204

75

R205

75

R206

75

C226 47p

Sheet 3/10

C269 47P

J242 J241

J243

QND0098-001 QND0097-001

QND0099-001

C268

C276 47p

C275

47p

C271

100p

C270

100p

1

FR.RELAY

SUR.RELAY

V.SIG.L

C.RELAY

SUR.RELAY

SrBL.MUTE

CN416 CN313

QGA2501F1-06 QGB2510K1-12

QGB1214K1-12S

CN371

V.SIG.R

FR.RELAY

SrBR.MUTE

S.MUTE

SW.MUTE

C.RELAY

SrBL.MUTE

SrBR.MUTE

S.MUTE

SW.MUTE

75

47p

R268

75

R209

47k

R211

R213

757575 757575

R240R242

R241R243

C246

0.047

R266

75

R245

R246

C273

0.047

R274

75

7575

R275R276

C252

470/6.3

Video board

C201

R207

330

4.7/50

C202

R208

330

4.7/50

C203

470/6.3 C204

R210

330

4.7/50

C205

470/6.3

47k

C206

R212

330

4.7/50

C207

470/6.3

47k

47P

C280

47P

C281

C242

4.7/50

47P

C282

47P

C245

C283C284C285

4.7/50

R244

75

R267

47k

C247

470/6.3

47P47P

C250

4.7/50

R272

75

R273

47k

C274

470/6.3

47P

C286

47P

C277

C287

4.7/50

C251

R247

75

0.047 R269

47k

150

R214

Q200

KTA1267/YG/-T

Q201

KTA1267/YG/-T

C208

47/16

C209

0.01

IC201 BA7625

IN1

MOUT

A

VOUT1

IN5

IN4

VOUT2

IN3 D

150

R215

R216

300

Q202 KRC110M-T

Sheet 9/10

R253 R254 R255

KRC107M-T

15k 15k 15k

C241

C211

4.7/50

C212

100

150

180

1SS355-X

R219

D200

D201

Q204

KTA1267/YG/-T

10k

R217

Q203

C210

4.7/50

330

R218

CN206

VIDEO

QGA2501F1-02

R220

R221

Q205

KTA1267/YG/-T

47

R232

Q206

KTA1267/YG/-T

Q208

CN204 QGB1214K1-08S

DTC123YSA-T

IC202

NJM2285V-W

IN1B

OUT1

IN2B

OUT2 OUT3 CTL3 IN3A

IN3B

47/16

C213

0.01

C219

15p

X200

C220

10p

R231

2.2k

C231

4.7/50

Q207 KTA1267/YG/-T

4.7/50

C215

C214

4.7/50

0.047

C216

C217

C218

1.547p

470/10

IC203

MB90088PF-131

YOUT VOUT COUT

SIN

SCLK

XD

EXD

L200

22u

27p

0.001

C221

C223

C222

Sheet 5/10

0.047

180

R250

C244

0.047

C249

0.047

C272

0.047

4.7/50

0.047

C254

C255

C253

10p

CN244

VIDEOY

VIDE0C

QGA2501F1-04

Q240

KTA1267/YG/-T

IC242

Q241

KTA1267/YG/-T

IC241

R248

R249

BA7626

BA7625

KTA1267/YG/-T

150

R251

Q242

KTA1267/YG/-T

Q244

KRC107M-T

0.01

C256

300

R280

R284

C258

300

150

300

R281

R285

Q245 KRC110M-T

Q243

10k

R282

Q246

KRC110M-T

1SS355-X

4.7/50

0.047

C261

Q247 KRC107M-T

D240 D241

1SS355-X

R271

3.3

C260

CN242 QGB1214K1-10S

C257

47/16

0.01

C259

47/16

10k

R283

QGB2510K1-11

R225

2.2

OSDCS

OSDDATA

OSDCLK

Sheet 3/10

560

R222

R223

R224

270p

120p

C224

C225

CN240

QGB2510K1-12

Sheet 3/10

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

Sheet 5/10

Sheet 3/10Sheet 9/10

Sheet 9/10 Sheet 5/10

AUDIO Signal TUNER Signal PHONO Signal

2-6

VIDEO AUDIO Signal

SHEET 4/10

HABC DEFG

RX-8020VBK

DVD section

Compulink board

R1350

220p

C1352

C1350

470

R1351

220

220p

R1352

100

R1353

220

220p

220

R1354

220

D1350

MA3062/H/-X

CN393

QGA2501F1-03

AV_VCR

DCS

TEXT

J1350

QNS0089-001

J1351

QNS0077-001

C1351

5

J1352

QNS0089-001

R1355

Sheet 3/10

R1312

100k

CN243 QGB1214J1-10S

Yin

Cin Cmoni

4

Sheet 4/10

3

Sheet 8/10

Sheet 4/10

Ymoni

CN205 QGB1214J1-08S

Yin YOSD Cin Cmoni

Ymoni VIDEO5 VIDEO6

CN501 QGB1214J1-14S

DSP_IN_L DSP_IN_R

DSP.L DSP.R DSP.LS DSP.RS DSP.C DSP.SW DSP.SrBL DSP.SrBR

CN381 QGB1214J1-12S

FR.RELAY C.RELAY SUR.RELAY SrBL.MUTE SrBR.MUTE S.MUTE SW.MUTE

R1301

68

R1302

68

IC380

TC9162AF-X

C1301 47/25

C1302 47/25

FRONT-RFRONT-L

DSP.R

DSP.L

DVD-LS DVD-RS

DSP.RS

DSP.LS

DSP.SW

DSP.C

R1306

R1304

R1305

2.2k

1.2k

R1303

2.2k

2.7k

R1308

DSP_IN_R

DSP_IN_L

2.7k

R1307

DATA

STB

IC381

TC9459F-X

CLK

C1303 220p

IC382

TC9459F-X

R1322

R1321

R1332

4.7/50

C1313 C1314

R1311

100k

C1324C1323

4.7/50

100k

C1334

4.7/50

C1311

C1322

C1321

C1332

4.7/50

C1316C1326

C1315

C1325

0.22/500.22/500.22/50

0.22/50

C1319 220p

C1329

C1339 220p

VOL_STB

VOL_DATA

VOL_STB

VOL_DATA

VOL_CLK

S.MUTE

R1310

1k

R1309

YOSD

1k1k

R1371R1372

0.01

47/25

TC74HC4053AF-X

C1371

C1372

IC388

R1313

1k

R1315

10k

Q1313

2SC3576-JVC-T

R1324

Q1314

R1316

10k

R1314

1k

4.7/50

Q1324

2SC3576-JVC-T

1k

C1432 10/50

C1310

22/16

Q1310

KRA104S-X

C1309 10/50

470k

R1326

10k

C1431

R1439

R1440

R1431

R1432

C1411 10/50

C1412 10/50

VIDEO6

VIDEO5

C1381 C1382 C1383

47p 47p 47p

R1385

75

C1384 C1385 C1386

Q1421

2SC3576-JVC-T

Q1422 2SC3576-JVC-T220p

D1428

1SS355-X

R1446

10k

D1448 1SS355-X

47/25 4.7/50 4.7/50

C1387 C1388 C1389

47p 47p 47p

R1388

75

C1390 C1391 C1392

47/25 4.7/50 4.7/50

C1393

100p

75

R1391

R1392

R1394

47k

C1396 C1397

470/6.3 100/10

Q1447

KRA104S-X

Q1445

2SC3576-JVC-T

470k

R1447

0.01

47/25

TC74HC4053AF-X

C1374

C1373

IC389

C1370 47/25

C1379

22/25

C1377

22/25

C1375

22/25

1M

R1373

IC390

NJM2580M-X

C1376 22/16

IC396 BA15218F-XE

C1413

R1413R1414

1.2k1.2k

FR.RELAY

1.2k

R1415

5.1k

R1416

5.1k

R1436

5.1k

C.RELAY

IC396

BA15218F-XE

KRC107S-X

IC397

BA15218F-XE

R1435

9.1k

IC397

BA15218F-XE

KRC107S-X

Q1428

Q1448

10/50

C1414 10/50

SW.MUTE

C1434 10/50

R1417R1418

Q1429

KRA104S-X

C1433

4.7/50

R1437

R1438

Q1449

KRA104S-X

100k100k

R1429

100k

R1449

100k

R1411

100k

R1412

68

100k

C1439

47/25

R1433

R1434

100k

C1440

47/25

68

R1423

10k

R1424

10k

C1428 22/16

470k

R1441 R1445

R1443

R1444

C1448

R1442

22/16

R1448

470k

R1421

1k

R1422

1k

R1428

1k

D1429 1SS355-X

470 470

Q1441

10k

2SC3576-JVC-T

10k

Q1442 2SC3576-JVC-T

1k

D1449 1SS355-X

C1394 C1395

100p 100p

75

R1393

R1395

47k

100/10

C1398

R1387R1386

7575

J1380

R1390R1389

75

R1396

QNN0391-001

7575

47k

CN731

QJP001-032301

Sheet 2/10

2

Sheet 4/10

1

CN361 QGB1214J1-14S

V.SIG.L V.SIG.R FRONT-L

FRONT-R

DVD-LS DVD-RS STB CLK DATA VOL_STB VOL_CLK VOL_DATA

J1360

QNN0483-001

C1360

AUDIO Signal

R1365R1366

IC386

BA15218F-XE

C1365

DVD-C

IC386 BA15218F-XE

4.7/50

C1366

4.7/50

R1367R1368

100k

100k DVD-SW

100k100k

R1361

C1363

560

4.7/50

R1363R1364

C1361

100k100k

0.022 C1362

C1364

R1362

560

4.7/50

FRONT Signal CENTER Signal REAR Signal

IC383

TC9459F-X

IC384

TC9459F-X

R1342R1341

VOL_STB

VOL_DATA

VOL_CLK

C1331

C1333

4.7/50

R1331

100k

100k100k

4.7/50

C1344

C1343

4.7/50

C1342 C1312C1341

4.7/50

C1349 220p

VOL_STB

VOL_DATA

VOL_CLK

R1333

R1335

R1336

1k

10k

R1334

1k

Q1333 2SC3576-JVC-T

Q1334

2SC3576-JVC-T

C1451

10/50

C1452 10/50

10/50

C1472 10/50

SrBL.MUTE

SrBR.MUTE

C1471

ABCD E F G

IC398 BA15218F-XE

C1453

R1451R1452

R1471

R1472

100k100k

100k

R1453R1454R1473R1474

1SS355-X

1SS355-X 1SS355-X

R1455

5.1k

1.2k1.2k1.2k1.2k R1456

5.1k

SUR.RELAY

R1475

5.1k

R1476

5.1k

D1486 D1488

D1487 D1489

IC398

BA15218F-XE

Q1468

KRC107S-X

IC399 BA15218F-XE

C1454 10/50

C1474 10/50

R1486

R1487

1k

10/50

C1473 10/50

R1457R1458

KRA104S-X

R1477

R1478

KRA104S-X

Q1469

C1486 22/16

R1469

100k100k

Q1486

C1468 22/16

470k

C1487 22/16

KRA104S-X

470k

R1488

Q1487

R1463

10k

R1464 10k

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

R1461

R1462

R1468

CN732

Fr-R

SW

Sr-R

SrB-R

J1490

QNN0484-001

J1491

QNN0485-001

WJP0038-001A

1k

Q1461

2SC3576-JVC-T

Q1462 2SC3576-JVC-T

1k

D1468 1SS355-X

1k

D1469

R1483

R1484

R1481

10k

R1482

R1489

1k

10k

1k

470k

1SS355-X

Q1481

2SC3576-JVC-T

Q1482

2SC3576-JVC-T

Fr-L

CENTER

Sr-L

SrB-L

C1491 C1492

330p 330p

C1493

C1494

330p

C1495

330p 330p

C1497 C1498

330p 330p

330p

C1496

Sheet 7/10

Sheet 2/10

DVD board

SHEET 5/10

2-7

Audio amp. section (1/2)

RX-8020VBK RX-8020VBK

Lch amp. board

R705

R707

2k

5

D701 1SS133

R701 C701

10/35

2.2k

C703 100p

R703 100k

C705 100P

Q701

2SD2240-BL/AB/

R709

9.1k

2k

0.01

C711

220

R733

Q703

2SC2240-BL/AB/

R721

R717

R719

150

D771

TH783

QAD0012-202

Q771

KTC3200/GL/

Q773

KTA1268/GL/

1SS133

D773 1SS133

Q707

KTA1268/GL/

1.5k

R725

Q705

KTA1268/GL/

Q709

KTA1268/GL/

C713

C717

5.6k

10k

390

R723

390

1SS133

D703

R731

22P( 500V)

C715

33k

R727

68p

C709

10p

R715

100k

R711

620

Q711

KTC3200/GL/

390

C707 100/16

R729

C741

47/100

C719

0.0047MY

VR787

500

R783 620

Q781

2SD637/QR/ R781

390

R789

270

R775

R777

C751

47p

R761

10

R771

390

200

R773

390

R763

10

47p

C753

Q761

Q763

R779

0.22( 7W)

R795

R787

Q791

KTA1268/GL/

C795

0.022

1k

15k

R797

D791

1SS133

47k

R791

33

L791

1u

R793

10

C791

0.047

C793

0.047

4

C745

47/100

CN711

Sheet 2/10

3

Rch amp. board

R706

R708

2k

150

R722

Q774

QAD0012-202

1SS133

Q772

KTC3200/GL/

KTA1268/GL/

1SS133

D772

D774

Q708

KTA1268/GL/

1.5K

D704

5.6k

10k

R724

390

1SS133

Q706

KTA1268/GL/

C718

390

R732

R726

22P( 500V)

33k

R728

C716

C714

Q710

KTA1268/GL/

68p

C710

68p

10p

R716

100k

R712 620

Q712

KTC3200/GL/

C708

390

100/16

R730

C742

C746

47/100

C720

0.0047MY

VR788 500

R784 620

Q782

2SD637/QR/ R782

390

R790

270

TH784

0.01

C712

220

R734

R710

9.1k

R718

Q704

2SC2240-BL/AB/

R720

R704

D702

1SS133

C706

100p

Q702

2SC2240-BL/AB/

2

C702

R702

10/35

2.2k

C704 100p 100k

1

R778

R776 200

200

R772

R774

R762

390

R764

C752

47p

10

390

10

C754

47p

Q762

Q764

R780

0.22( 7W)

R796

R788

R792

47k

33

L792

1u

R794

10

C792

0.047

C794

0.047

Q792

KTA1268/GL/

C796

0.022

1k

15k

R798

D792

1SS133

FRONT Signal

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

CN712

2-8

Sheet 2/10

SHEET 6/10

HABC DEFG

5

4

Audio amp. section (2/2)

Cch amp. board

Sheet 5/10

CN722

R1701

RX-8020VBK

R1721

220

R1711 330

100/16

C1704

R1712

56k

C1705

C1713 100/16

Q1703

KTA1268/GL/

C1711

33p

R1722

3.3k

R1723

3.3k

5p

C1712

0.01MY

R1724

3.3k

R1725

3.3k

R1733

TH731

QAD0012-202

C1715

47/50

C1743 47/100

270

Q1731

2SD637/QR/

R1741

R1731

R1732

910390

220

Q1771Q1772

KTC3200/GL/KTA1268/GL/

D1771

1SS133

D1772

1SS133

R1751

R1752

R1773

R1774

10

C1751

10

R1771

390

200

R1772

390

Q1752

2SB1560/OPY/-F6

C1752

47p

R1793

R1795

47k

Q1791 KTA1268/GL/

C1791

0.022

18k

R1761

L1761

0.45u

33

R1762

10

C1761

0.047

C1762

0.047

Q1751

2SD2390/OPY/-F6

R1753

0.22

R1791

1k

D1791

1SS133

47p

47/100

CN713

C1741

R1703

2k

D1701

1SS133

C1701

C1703

1/50

2.2k

C1702

Q1701

R1705

Q1702

2SC2240/AB/

12k

2SC2240/AB/

R1702 68k

100p

Sheet 2/10

RLch amp. board

3

R1805

2k

D1801

R1801

1SS133

C1805

C1801

1/50

2.2k

C1803

100p

2SC2240/AB/

R1803

68k

Q1801

R1809

12k

Q1803

2SC2240/AB/

R1811 330

R1813

C1807 100/16

56k

C1809

5p

2

C1815 100/16

C1811

R1821

220

Q1805

KTA1268/GL/

33p

R1823

R1825

C1813

0.01MY

R1835

3.3k

TH831

QAD0012-202

3.3k

C1817 47/50

R1827

3.3k

R1829

3.3k

C1843 47/100

270

Q1831

2SD637/QR/

R1841

R1831R1833

910390

D1871 1SS133

Q1871Q1873

KTC3200/GLKTA1268/GL/

D1873

1SS133

220

R1851

R1853

10

R1871

390

R1875

200

R1877

200

R1873

390

2SB1560/OPY/-F6

C1851

Q1853

C1853

47p

C1841 47/100

C1891

0.022

R1893

18k

D1891 1SS133

R1895

47k

Q1891 KTA1268/GL/

R1861

L1861

0.45u

33

R1863

10

C1861

0.047

C1863

0.047

Q1851

2SD2390/OPY/-F6

R1855

0.22

R1891

1k

47p

RRch amp. board

R1802

R1822

C1816

R1806

2k

D1802 1SS133

C1802

C1806

1/50

2.2k

C1804

100p

2SC2240/AB/

R1804

68k

Q1802

R1810

12k

Q1804

2SC2240/AB/

R1814

R1812 330

C1808 100/16

56k

C1810 5p

100/16

C1812 33p

R1824

R1826

220

Q1806

KTA1268/GL/

910

270

C1814

0.01MY

R1836

3.3k

R1828

3.3k

R1830

TH832

QAD0012-202

C1818

47/50

C1844 47/100

Q1832

2SD637/QR/

3.3k

D1872

R1832R1834

1SS133

Q1872Q1874

KTC3200/GL

390

KTA1268/GL/

D1874

1SS133

R1842

220

R1854

R1852

10

R1876 200

R1878 200

C1852

47p

R1872

390

R1874

390

Q1854

2SB1560/OPY/-F6

10

C1854

R1894

C1892

0.022

18k

R1896

47k

Q1892 KTA1268/GL/

R1862

L1862

0.45u

33

R1864

10

C1862

0.047

C1864

0.047

Q1852

2SD2390/OPY/-F6

R1856

0.22

R1892

1k

D1892

1SS133

47p

C1842 47/100

CN716

Sheet 2/10

CN715

Sheet 2/10

CENTER Signal

1

REAR Signal

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

SHEET 7/10

ABCD E F G

2-9

JVC RX-8020-RBK Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual