JVC MX-KB15, MX-KB2 Schematics

SCHEMATIC DIAGRAMS

COMPACT COMPONENT SYSTEM

MX-KB2,MX-KB15

CD-ROM No.SML200408

Contents

Wiring diagram
Block diagram
Standard schematic diagrams
Printed circuit boards

COPYRIGHT 2004 Victor Company of Japan, Limited.

Area suffix

C ------------------------- Canada

2-1
2-2
2-3

2-9 to 11

No.MB287SCH

2004/8

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.

Wiring diagram

AC CORD P/N.: 30-00300-00L
(AC 120V - 60 Hz)

P/N:11-01002-16

CN802

Power board

CN801

CN804

P/N:20-41051-37

5P UL2651#28 L=500 mm

CN902

Headphone board

P/N:11-01002-05

FM ANT

Tuner board

P/N:11-01002-03

P/N:20-61030-00

3 PIN UL2547#30 P=2 L=360 mm

A PLAY HEADER

LOGIC DECK CONTROL BUS

AUX INPUT

SJ500

CN504

AUX input board

J601J602

AM ANT

TU-R

AGND

TU-L

+12V

+5.6V

DGND

STEREO

CD-EN

PLL-DAT

PLL-CLK

PLL-PER

RDS-CLK

RDS-DAT

CN601

P/N:20-61070-00 7 PIN UL2854#30 P=2L=360 mm

LOGIC DECK

B R/P HEADER

P/N:25-61260-80 13 PIN UL2896 P=1.25 L=260 mm

P/N:11-01002-05

Transformer

P/N:15-01002-00

P/N:20-61030-02

3P UL547#30 P=2 L=300 mm

P/N:20-61133-01

13P UL2547+2651 P=2 L=370 mm

CN202

CN101

L-IN
AGND
R-IN

R.CH­R.CH+
GND
L.CH+
L.CH­GND
E-S

CN103

GND
NIL
SOL-B
B-M-SW
B-T-SW
PHO-B
REC-SW
T-MOTOR
A-T-SW
GND
PHO-A
SOL-A
A-M-SW

TU-R

AGND

P/N:20-61073-11

7P UL2547+2651 P=2 L=250 mm

CN803

AC7

AC6

AC9

P/N:20-42110-00

11PIN P=2.5 L=250 mm

AC5

AC10

AC11

AC8

AC3

CN861

GND1

P/N:20-45041-80

4P UL1007#20 L=250 mm

CN901

R

Speaker board

P/N:11-01002-06

L

CN201

ECO
HP-M
MUTE
STBY
L-OUT
GND
R-OUT

TU-L

+12V

+5.6V

DGND

STEREO

CD-EN

PLL-DAT

PLL-CLK

PLL-PER

RDS-CLK

RDS-DAT

CN205

CN110

L-IN

R-IN

GND

P/N:11-01002-00

AC2

AC1

Main board

IR-IN

D-STB

D-CLK

D-DAT

+5.6V

CGND

-27V

JOG-A

OL-DET

OL-PROT

KEY1

KEY2

JOG-B

+9V

AGND

P/N:20-41020-00
2 PIN UL2651#28 P=2 L=250 mm

CN208

RL-

SW1

SW2

GND

CN207

CN206

+5V

AC1

AC2

-27V

+12V

+5.6V

DGND

DGND

CGND

P/N:20-51061-20
6 PIN UL1571#30 P=2 L=100 mm

CN402

FM-

SLT

DM-

FM+

DM+

GND

CN204

+5V

RL+

MO-

EMT

MO+

CATH

16.V-CEN

15. COM

14. E

13. D

12. A

11. B

10. C

9. F

8. GND

7. LD

6. VR

5. PD

4. F+

3. T+

2. T-

1. F-

CN401

P/N:20-41101-24

10 PIN UL2651#28 P=2 L=250 mm

P/N:25-61135-80
16 P Ul2896 P=1 L=135 mm

CD DECK

PICK UP

SW2

GND

SW1

RL-

RL+

+5V

3CD MODULE

EMT

CATH

MO-

MO+

CW3

Motor board

P/N:25-83100-02

2PIN UL2651#28 P=2 L=100 mm

Display & Key

CN511

CN510

Top left key

P/N:11-01002-12

Left key

P/N:11-01002-10

2PIN UL2468#26

P/N:25-94060-80

CN509

CN503

CN505

IR1
GND
IR3
LED+

P/N:20-41130-00
13 PIN UL2651#28 P=2 L=250 mm

CN500

AC1

AC2

-27V
IR-IN

KEY2

KEY1

+5.6V

CGND

D-STB

D-CLK

D-DAT

JOG-A

JOG-B

Main key

P/N:11-01002-09

P/N:20-41040-00

4 PIN UL2651#28 P=2 L=50 mm

Display board

P/N:11-01002-07

P/N:25-83050-05

5 PIN UL2651#28 P=2 L=50 mm

CN501

KEY1

KEY2

CGND

JOG-A

JOG-B

CGND

KEY1

KEY2

CN502

JOG-A

JOG-B

CN506

P/N:25-94060-80
2 PIN UL2468#26

Top light key

P/N:11-01002-13

Right key board

P/N:11-01002-11

CN512

CN508

Remote receive

P/N:11-01002-14

CN514

CN513

P/N:25-83100-02

2P UL2651#28 P=2 l-100 mm

2-1

Block diagram

Key board section

CD2

S501

VFD CONTROL / DRIVER

SC6122

REMOTE RECEIVER

ENCODE VOLUME

45

JOG-A
JOG-B

EN500

321

+9V

U101

TA8189
4CH Pre+Rec
AMP with ALC

BIAS OSC

R/P SWITCH CIRCUIT

H CASS A
L CASS B

REC-E
H-PLAY

L-REC

LOGIC DECK-TP

+9V

IC602

TA2149BFN

IF

IC600

TC9257 PLL

AUX INPUT

VFD

KEY2

KEY1

U500 SC6311

KEY SCAN

CLK

DATA

CPU

87EP26F-4K76

STB

REC SIGNAL

OUTPUT

Filament

AC3.3V

+5V

STANDBY LED

GVSW

CDR-W GAIN

CONTROL

+5V

VCC

DATA AND CONTROL

U406

TC74HC14

STB
DATA

CK

L CH

R CH

L CH

R CH

+5V

R503

680R

LED500

BUS

L CH

R CH
SDA

REQ

SCL

L CH

R CH

U201 TC9422F

SYSTEM E.VOLUME

(Tone control input

selector Main volume)

SYS_MUTE

PICKUP

EDA

F

B

C

LD

U402 TA2153

RF AMPLIFIER

RF

RFPP

RFCT

FEO

U401 TC9462

DIGITAL SERVO

1 BIT D/A CONVERTER

U404 TC94A02F

CD ROM DECODE

MP3 DECODE

D/A CONVERTER

+9V

R832

10k

R83110k

D803

IN4001

Q812

8050

LIMIT SW

Q813

8050

F-

+5V

FOO
TRO
DMO

FMO

DIGITAL SERVO DRIVER

ADDRESS BUS

DATA BUS

VDD 3V

VDOT 3.3V

+VC

-VC

IC801 STK402-050

LOW LOGIC DETECT

PROTECT ENABLE

Q860,Q861,Q864,Q865

DETECT

OVERLOAD

PROTECT

When use headphone

the control voltage is

ENABLE

T-

T+

F+

U403 TA2092N

U405 SRAM (SDJ)

128k x 8 (15ns)

logic low level

+9V

R241

123456

CN402

123456

TO CD DECK

M-

M+

EMIT

R242

10k

IN2

U203 TA7219S

BRIDGE DRIVER

IN1

10k

R233

10k

+9V

DM+

DM-

FM-

FM+

SLT

ML+

ML-

R232

IN1

U202 TA7219S

BRIDGE DRIVER

IN2

10k

TO 3CD DECK

CN204

MO+

1

MO-

2

CATH

3

EMIT

4

+5V

5

RL+

6

RL-

7

SW1

8

GND

9

SW2

10

3CD CHANGER DRIVER SECTION

SW1

VDD 3.3V

SW2

+VC

AC PLUG

HEADPHONE

Q862

8550

+12V

-VC

+12V

+9V

CE803

100uP/50V

D849-D852

D806-D809

L7809CV

Q803

D845

IN4001

U803

L7806CV

AC7

AC10

AC12

AC11

AC8

AC9

AC5

T802

T06910A

1

7

86543211

!

TRANSFORMER

10

AC3

AC4

9

!

F804

T2.0A/250V

R862

10k

R877

22k

GRID VOLTAGE -27V

AC 3.3V

FILAMENT VOLTAGE

Q867

8050

+6V TO CPU

2-2

PRE_AMP

AMP
STK402-050

Standard schematic diagrams

Primary / Power amp section

!

!

PROTECT CIRCUIT

!

!

!

!

!

!

2-3