JVC XLR-5020 Service manual

XL-R5020BK

In regard with component parts appearing on the silk-screen printed side (parts side) of
the PWB diagrams, the parts that are printed over with black such as the resistor ( ),
diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety.
When replacing them, be sure to use the parts of the same type and rating as specified
by the manufacturer. (Except the JC version)

2-1

XL-R5020BK

Block diagrams

System control and I/O terminal section (SHEET 1,2)

TO CD Recording

mechanism unit

CN723

TO MP3 decoder unit

CN616

CN401

TO CD Recording

mechanism unit

CN722 CN615

LRCK CDINDEX
DATA CDTNO
XBCK CDCOPY
CDEMP

DOUT3

MP3SDA MP3BYPAS MP3RST
MP3SCL MP3REQ

IC862

LIN

RIN

DAC

IC361

WCK3

BCK3

OUT1C/D

OUT2C/D

DACMUTE
CKSL1,2
IDFS2

IC362

3CDLOUT

3CDROUT

CD-R TAPE

DCS I/O

J541

DCS

SYSTEM CONTROLLER

IC501

S531

MODE

TO FL Display &
Operation switch

CN541

CN501

CN711 CN841

CN701

TO Headphone &

Power switch

mechanism unit

TO Changer

CN651

OPTICAL

DIGITAL OUT

J353

COAXIAL

OUT

J354

COAXIAL

IN

OPTICAL

DIGITAL IN

STAT

COMD

3CDRES

TX

J351

J352

DOUT

T301

IC331

CD Direct switch

IC861

IC851

IC891

Digital OUT

Digital IN

MROUT

MLOUT

CD LPF

IC811

selector

IC301

DIN

selector

IC311

DOCDR

DOCD

DIN_OPT

DIN_COA

3CDLOUT

3CDROUT

MLIN1
MRIN1

MLIN2
MRIN2

VR_STB

VR_DATA

VR_CK

3CDLOUT

3CDROUT

Line OUT

selector

IC821

CDRLOUT
CDRROUT

REC Source

selector 1

IC831

REC Source

selector 2

IC841

LNLI
LNRI

MIC IN

JOGA,B

Line OUT

buffer

IC881

Line IN

AMP.

IC871

HP

Balance volume

CN801

LINE OUT LINE IN

CN601

TO Multi jog &

2-2

MIC IN J6001

FW601

MIC AMP.

IC601

Headphone & power switch section (SHEET 3)

XL-R5020BK

CN712

FW702

Headphone

volume

VR701

Headphone
J6201

Headphone AMP.

IC621

LOUT

L/R

FL Display & Operation switch section (SHEET 3)

LED

control section

TO System

CN501

CN541

D755~D760

FLDATA FLCLK FLCS SRST

KEY1

KEY2

KEY3

KEY4

Operation

switch

S760~S763

Operation

switch

S710,S721~S726

Operation

S702~S708

Operation

switch

S751~S756

FL Driver

switch

P01~P35

1G~16G

F1,F2

IC721

FL Display

DI721

Standby
indicator

D701

HPLIN HPRIN

STBY_LED

KEY1

Power
button

S701

REM

Remote

control

IC701

control section

CN701

CN711

TO System

Multi jog & Balance volume section (SHEET 3)

Multi jog

JS721

Mix balance

volume

VR641

TO System

control section

CN841

JOGA,B

CN801

MLIN1,2 MRIN1,2

MLOUT MROUT

IC722

2-3

XL-R5020BK

MP3 decoder section (SHEET 4)

MP3 Decoder

IC401

AD0~16

IO0~7

CE,OE,WR

SRAM

IC402

TO Changer

CN617

DATA0

XBCK0
LRCK0

IC407

DATA

XBCK
LRCK

MP3 CLK

IC410

PLL LOCK

PLL

IC404

mechanism unit

CN606

3CD Changer mechanism section (SHEET 5)

ACTU Motor

M851

CAM Motor

M852

AM+

CM+

CM-

AM-

ACTU Motor

driver

IC851

CAM Motor

driver

IC852

DATA0 CDEMP0 CDCOPY CDTNO CDINDEX

SDOUT

DATA

CAM Switch
SW690~693

P.POSI1~3

SUB_OP/CL

ACTU_CW

ACTU_CCW

CAM_CW

CAM_CCW

IC406

MP3 SDA MP3 RST

CAM Switch

SW680

CAMP1~4

UNIT MICOM

IC251

REST

CDATA

MP3 BYPASS

MP3 SCL

CN616

CN401

CN651 CN606

CN615

CN617

control section

TO System

control section

TO System

decoder unit

TO MP 3

2-4

OPTICAL

PICK-UP

CN699

Feed motor

Spindle motor

Rest switch

CN001

CN601

F+ F- T+ T-

SM+/- FM+/-

RF & Servo AMP

IC601

Focus,spindle,feed,

tracking BTL driver

IC801

Digital servo

processor

IC651

TRAY1~3

OPEN/CLOSE

CN610

CN620

Tray open/close

switch

SW1~6