JVC KD-G332EX, KD-G331EX, KD-G332EY, KD-G332EU, KD-G333EX Service Manual

SERVICE MANUAL

MA287200612SERVICE MANUAL

KD-G335UT, KD-G335UH, KD-G337BEE,

CD RECEIVER

KD-G331E, KD-G331EX, KD-G331EY,
KD-G331EU, KD-G332E, KD-G332EX,
KD-G332EY, KD-G332EU, KD-G333E,

KD-G333EX, KD-G333EY, KD-G333EU,

KD-G334UI, KD-G335U, KD-G335UN,

KD-G337SEE, KD-G338UF

COPYRIGHT © 2006 Victor Company of Japan, Limited

For the CD mechanism, please refer mechanism manual FLM-CD1-1 (No.MY006
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

COPYRIGHT © 2006 Victor Company of Japan, Limited

Only KD-G335

(for KD-G331)
(for KD-G332)
(for KD-G333)
(for KD-G337)

).

TABLE OF CONTENTS

No.MA287

2006/12

SPECIFICATION

AUDIO AMPLIFIER SECTION

Maximum Power Output Front/Rear 50 W per channel

Continuous Power Output (RMS) Front/Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than

0.8% total harmonic distortion.

Load Impedance 4 Ω (4 Ω to 8 Ω allowance)

Tone Control Range Bass ±12 dB at 100 Hz(For KD-G331,332,333,337)

Treble ±12 dB at 10 kHz(For KD-G331,332,333,337)

Bass ±12 dB at 60 Hz(For KD-G335,334,338)

Middle ±12 dB at 1 kHz(For KD-G335,334,338)

Treble ±12 dB at 7.5 kHz(For KD-G335,334,338)

Frequency Response 40 Hz to 20 000 Hz

Signal-to-Noise Ratio 70 dB

Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Output Impedance 1 kΩ

Other Terminals Steering wheel remote input (For KD-G331,332,333)

Subwoofer-Out Level/Impedance 2.0 V/20 kΩ load (full scale For KD-G335)

2.5V/20kΩ load (full scale For KD-G334,338)

TUNER SECTION

Frequency Range FM 87.5 MHz to 108.0 MHz(For KD-G331,332,333,334,335,338)

FM1/FM2 87.5 MHz to 108.0 MHz(For KD-G337)

FM3 65.00 MHz to 74.00 MHZ(For KD-G337)

AM (MW) 522 kHz to 1 620 kHz(For KD-G331,332,333,337)

AM (LW) 144 kHz to 279 kHz(For KD-G331,332,333,337)

AM 531 kHz to 1 602 kHz(For KD-G334,335,338)

FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)

50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)

Alternate Channel Selectivity (400 kHz) 65 dB

Frequency Response 40 Hz to 15 000 Hz

Stereo Separation 30 dB

MW Tuner Sensitivity/Selectivity 20 µV/35 dB(For KD-G331,332,333,337)
LW Tuner Sensitivity 50 µV(For KD-G331,332,333,337)
AM Tuner Sensitivity/Selectivity 20 µV/35 dB(For KD-G334,335,338)

CD PLAYER SECTION

Type Compact disc player

Signal Detection System Non-contact optical pickup (semiconductor laser)

Number of Channels 2 channels (stereo)

Frequency Response 5 Hz to 20 000 Hz

Dynamic Range 96 dB

Signal-to-Noise Ratio 98 dB

Wow and Flutter Less than measurable limit

MP3 Decoding Format: (MPEG1/2 Audio Layer 3) Max. Bit Rate 320 kbps

WMA (Windows Media® Audio) Decoding Format Max. Bit Rate 192 kbps

1-2 (No.MA287)

GENERAL

Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)

Grounding System Negative ground

Allowable Operating Temperature 0°C to +40°C
Dimensions (W × H × D)

(approx.)

Installation Size 182 mm × 52 mm × 150 mm(For KD-G331,332,333,337)

182 mm × 52 mm × 158 mm(For KD-G334,335,338)

Panel Size 187 mm × 58 mm × 13 mm

Mass 1.4 kg (

excluding accessories For KD-G331,332,333,337

1.3 kg (excluding accessories For KD-G334,335,338)

Design and specifications are subject to change without notice.

)

(No.MA287)1-3

1.1 Safety Precautions

SECTION 1

PRECAUTION

!

Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.

1-4 (No.MA287)

1.2 Important for laser products

1.CLASS 1 LASER PRODUCT

2.CAUTION :

(For U.S.A.) Visible and/or invisible class II laser radiation
when open. Do not stare into beam.
(Others) Visible and/or invisible class 1M laser radiation
when open. Do not view directly with optical instruments.

3.CAUTION : Visible and/or invisible laser radiation when
open and inter lock failed or defeated. Avoid direct
exposure to beam.

4.CAUTION : This laser product uses visible and/or invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.

5.CAUTION : If safety switches malfunction, the laser is able
to function.

6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified here in may result in
hazardous radiation exposure.

!

Please use enough caution not to

see the beam directly or touch it

in case of an adjustment or operation

check.

REPRODUCTION AND POSITION OF LABELS and PRINT

WARNING LABEL and PRINT

(No.MA287)1-5

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

1-6 (No.MA287)

3.1 Main body

3.1.1 Removing the Bottom cover
(See Fig.1)

(1) Disengage the five hooks a engaged bottom cover.

SECTION 3

DISASSEMBLY

Hook a

3.1.2 Removing the Front chassis
(See Fig.2)

(1) Remove the two screws A (both side of Front chassis) at-

taching the Front chassis.

(2) Disengage the two hooks b (both side of Front chassis) en-

gaged Front chassis.

3.1.3 Removing the Heat sink
(See Fig.3)

(1) Remove the two screws B and one screw C attaching the

Heat sink.

Hook a

Fig.1

A

Hook b

Fig.2

BBC

Fig.3

(No.MA287)1-7

3.1.4 Removing the Rear bracket
(See Fig.4)

(1) Remove the one screw D attaching the Remote cable.
(2) Remove the one screw E attaching the LINE OUT jack.
(3) Remove the two screws F attaching the Connector jack.
(4) Remove the one screw G attaching the Antenna jack.
(5) Remove the one screw H attaching the IC bracket.
(6) Remove the three screws J attaching the Rear bracket.

3.1.5 Removing the Main board assembly
(See Fig.5)

(1) Remove the two screws K attaching the Main board as-

sembly.

(2) Disconnect the connector CN501

assembly.

connected to CD board

DJJFF

EH JG

Fig.4

KK

CN501

3.1.6 Removing the CD mechanism assembly
(See Fig.6)

(1) Remove the three screws L attaching the CD mechanism

assembly.

Fig.5

LL

L

Fig.6

1-8 (No.MA287)

3.2 Front panel assembly

3.2.1 Removing the Rear cover

(See Fig.7)

(1) Remove the Volume knob from Front panel assembly.
(2) Remove the five screws M attaching the Rear cover.
(3) Disengage the fourteen hooks c engaged Front panel.

CAUTION:

When remove the Rear cover, Detach knob and spring are
easy to come off, do not lost them.

MM

Hook c Hook c Hook cHook c

3.2.2 Removing the Switch board assembly

(See Fig.8)

(1) Disengage the illumination lens from front panel and then

take out the Switch board assembly.

3.3 CD mechanism assembly

For CD mechanism, please refer mechanism manual FLM-CD1-1 (No.MY006

M

).

Hook c Hook c

MM

Fig.7

Illumination lens

Fig.8

(No.MA287)1-9

SECTION 4

ADJUSTMENT

4.1 Test instruments required for adjustment

(1) Digital oscilloscope (100MHz)
(2) Electric voltmeter
(3) Digital tester
(4) Tracking offset meter
(5) Test Disc JVC: CTS-1000
(6) Extension cable for check

EXTCD001-26P × 1

4.5 How to connect the extension cable for adjustment

4.2 Standard volume position

Balance and Bass & Treble volume : Indication "0"
Loudness : OFF

4.3 Dummy load

Exclusive dummy load should be used for AM, and FM. For FM
dummy load, there is a loss of 6dB between SSG output and an­tenna input. The loss of 6dB need not be considered since direct
reading of figures are applied in this working standard.

4.4 Standard measuring conditions

Power supply voltage : DC14.4V(10.5 - 16V)

Load impedance : 20KΩ(2 Speakers connection)

Output Level : Line out 2.0V (Vol. MAX)

CAUTION :
Be sure to attach the heat sink and rear bracket onto the
power amplifier and regulator respectively, before supply the
power.
If voltage is applied without attaching those parts, the power
amplifier IC and regulator IC will be destroyed by heat.

Heat sink

Extension cable

EXTCD001-26P

Rear bracket

1-10 (No.MA287)

SECTION 5

TROUBLESHOOTING

5.1 16PIN CORD DIAGRAM (for KD-G331,KD-G332,KD-G333,KD-G337)

8
7

6

5

4
3
2
1

BK

RD

NC

BL/WH

WH

GN

VI

GY

YL

NC

NC

BR

WH/BK

GN/BK

VI/BK

GY/BK

16
15

14
13

12
11
10

9

BK

RD

BL

WH

BR

Black

Red

Blue

White

Brown

GN

VI

GY

YL

Green

Violet

Gray

Yellow

NC

BR

YL

NC

BK

2

4

6

8

1

NC

3

BL/WH

5

RD

7

RR

FR

FL

RL

7 RD

16 YL

8 BK

5 BL/WH

13 BR

3 GN

11 GN/BK

2 VI

10 VI/BK

4 WH

12 WH/BK

1 GY

9 GY/BK

Rear Right

Front Right

Front Left

Rear Left

ACC

TEL

GND

MEMORY

RD

ACC Line

Telephone Muting

Ground

Memory Backup Battery+

RD 7

YL 4

8

5

2

7

8

1

2

5

6

3

4

VI/BK

VI

1

GY

3

WH

5

GN

7

GY/BK

WH/BK

GN/BK

2

4

6

8

REMOTE

ILL

Remote

Illuminations Control

ANT

Auto Antenna

(No.MA287)1-11

5.2 16 PIN CORD DIAGRAM (for KD-G334,KD-G335)

BK

8

YL

16

7
6
5

4
3

2

1

RD

BL

BL/WH

WH

GN

VI

GY

16 YL

8 BK

7 RD

3 GN

11 GN/BK

2 VI

NC

15
14

NC

NC

13

WH/BK

12

GN/BK

11

VI/BK

10

GY/BK

9

MEMORY

GND

ACC

RL+

RL-

RR+

BK

RD

BL

Black

Red

Blue

WH White

GN

Green

VI Violet

GY

YL

Gray

Yellow

GND

RR

FR

FL

RL

REMOTE

10 VI/BK

4 WH

12 WH/BK

1 GY

9 GY/BK

5 BL/WH

6 BL

Rear Right

Front Right

Front Left

Rear Left

Remote

RR-

FL+

FL-

FR+

FR-

REMOTE

ANT

ANT

ACC

GND

MEMORY

REMOTE

OUTPUT

ONLY

POWER

ANTENNA

Auto Antenna

ACC Line

Ground

Memory Backup Battery+

1-12 (No.MA287)

5.3 16 PIN CORD DIAGRAM (for KD-G338)

8

7
6
5

4
3
2
1

BK

RD

BL

BL/WH

WH

GN

VI

GY

7 RD

16 YL

8 BK

6 BL

3 GN

11 GN/BK

2 VI

10 VI/BK

YL

NC

NC

NC

WH/BK

GN/BK

VI/BK

GY/BK

16

15
14
13

12

11
10

9

MEMORY

ACC

GND

RL+

RL-

RR+

RR-

BK

RD

BL

Black

Red

Blue

WH White

GN

VI

GY

YL

Green

Violet

Gray

Yellow

RD

NC

1

3

5

7

NC

BL

RD

RD 7

YL 4

NC

2

4

YL

NC

6

8

BK

8

5

7

8

1

2

12 WH/BK

1 GY

RR

FR

FL

RL

ANT

4 WH

9 GY/BK

5 BL/WH

Rear Right

Front Right

Front Left

Rear Left

Auto Antenna

FL+

FL-

FR+

FR-

REMOTE

REMOTE

ACC

MEMORY

GND

Remote out

ACC Line

Memory Backup Battery+

Ground

REMOTE OUT

VI

1

GY

3

WH

5

GN

7

5

6

3

4

VI/BK

GY/BK

WH/BK

GN/BK

2

4

6

8

(No.MA287)1-13

Victor company of Japn, Limited
Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken, 371-8543,Japan

(No.MA287)

Printed in Japan

VPT

SCHEMATIC DIAGRAMS

CD RECEIVER

KD-G331E,KD-G331EX,KD-G331EY
KD-G331EU,KD-G332E,KD-G332EX
KD-G332EY,KD-G332EU,KD-G333E

KD-G333EX,KD-G333EY,KD-G333EU

KD-G334UI,KD-G335U,KD-G335UN

KD-G335UT,KD-G335UH,KD-G337BEE

KD-G337SEE,KD-G338UF

CD-ROM No.SML200612

Only KD-G335

(for KD-G331)
(for KD-G332)
(for KD-G333)
(for KD-G337)

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

Contents

Block diagram
Standard schematic diagrams
Printed circuit boards

2-1
2-3
2-8

COPYRIGHT 2006 Victor Company of Japan, Limited.

No.MA287SCH

2006/12

Safety precaution

!

!

Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.

Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.

2-1

Block diagram

(For KD-G331,KD-G332 KD-G333 and KD-G337)

SPINDLE

MOTOR

REST

SWITCH

LOAD&FEED

MOTOR

Q101,Q201
PHOTO SW

PICK UP

REST

SW1, SW2

IC501

BTL DRIVER

IC521

RF AMP

IC581

CD L.P.F.

IC981

1.5V REGULATOR

IC523

VF1, VF2
VT1, VT2
MD, LD
PSW

FOP
TRP
TRVP
SPOUT

TRAV
MLD
MDATA
MCLK
NRST
NPWDOWN

REV, FWD
BTL_MUTE

TU1
FM/AM
TUNER

IC701

CPU

IC171

E.VOLUME

Q341,Q351

LINE OUT

MUTING

Q301

Q781, Q782

MUTE

DRIVER

IC301

POWER

AMP.

IC901

REGULATOR

EACH BLOCK

TU_L/R

FL_OUT, FR_OUT
RL_OUT, RR_OUT

RLO,RRO

RLO,RRO

STANDBY

ACC

SW5V,ACC5V
VDD5V.CD8V
9V,ILL10V

PS2

CD_L/R

POWER
CDON

LF+/-, RF+/­LR+/-, RR+/-

VSCL
VSDA

MUTE

MUTE

MUX

ANT

SW1
SW2
PSW

LOAD+/­FEED+/-

SP+/-

VF1, VF2, VT1, VT2, LD, MD

TRK+/­FOCUS+/­LOAD+/­FEED+/­SP+/-

SPK
BATTERY

FSU
AFS
Q_OUT
SSTOP
TUSDA
TUSCL

KEY0 to 2
LCDCLK
LCDDA
LCDCE
REMOCON
ENC1
ENC2

OUTL/R

STAT
IRQ

STAT
IRQ

LINE OUT
REAR

FOCUS &

TRACKING

COIL

TRK+/­FOCUS+/-

CD mechanism control section

Main amplifier section

S601 to S616
KEY MATRIX

KEY0
KEY1
KEY2

IC661

LCD DRIVER

LCD1

LCD DISPLAY

COM1 to COM3
S1 to S52

LCDCLK
LCDDA
LCDCE

IC681

REMOCON

REMOCON

JS686

ENCODER

D630

POWER LED

LCD & Key control section

D631 to D650

LIGHTING
DISPLAY

CJ601

CN701

ENC1
ENC2

ILL10V

ACC5V

Q911,Q912

PS2

STEERING
REMOTE

STEERING

IC775,S775

RESET

IC771

EPROM

RESET

ERCLK
ERDI

Q913,Q914

ILM.ADJ

DIMOUT

ILM.ADJ

IC71
RDS

DETECTOR

RDSDA
RDSCL

CN501

CN101

CN761

J761CN901J321

J1

1.5V VDD5V

MUTE

TEL_MUTE

TEL_MUTE

Q891

TEL.MUTE

Used for KD-G337

X521

16.9344MHz

X71

4.332MHz

X701
8MHz

X702

32.768KHz

Used for Area suffix EU/EX/EY

2-2

Block diagram

(For KD-G334,KD-G335 and KD-G338)

SPINDLE

MOTOR

REST

SWITCH

LOAD&FEED

MOTOR

Q101,Q201
PHOTO SW

PICK UP

REST

SW1, SW2

IC501

BTL

DRIVER

VF1, VF2
VT1, VT2
MD, LD
PSW
SW1, SW2

FOO
TRO
FMO
DMO
FWD
REV
DRV_MUTE

IC1

FM/AM

TUNER

IC701

CPU

IC161

E.VOLUME

IC581

CD L.P.F.

Q342

LINE OUT

MUTING

Q301

Q781, Q782

MUTE

DRIVER

IC301

POWER

AMP.

IC901

REGULATOR

EACH BLOCK

TUN_L/R

OUTFL/FR
OUTRL/RR

LR, RR

RLO,RRO

ACC.IN, EXT

3.3V, SW5V, ACC5V
VDD5V

,

CD5V

9V, ILM10V

CD_L/R

ANT

FL+/-, FR+/­RL+/-, RR+/-

SCL
SDA
VOL_M

MUTE

MUTE
SUBMUTE

P_MUTE

L_MUTE

ANT

LOAD+/­FEED+/-

SP+/-

VF1, VF2, VT1, VT2, LD, MD

TRK+/­FOCUS+/­LOAD+/­FEED+/­SP+/-

SPK
BATTERY

SDA
SCL

KEY0 to 2, REMOTE
ENC1, ENC2

OUTL/R

LINE OUT
REAR

FOCUS &

TRACKING

COIL

TRK+/­FOCUS+/-

Main amplifier section

S601 to S616
KEY MATRIX

KEY0
KEY1
KEY2

IC661

LCD DRIVER

LCD1

LCD DISPLAY

COM1 to COM3
S1 to S52

LCD_CL5
LCD_DA5
LCD_CE5

IC681

REMOCON

REMOTE

JS686

ENCODER

D630

POWER LED

LCD & Key control section

D631 to D650

LIGHTING

DISPLAY

CJ601

CN701

ENC1
ENC2

ILL10V

ACC5V

IC703

S701

RESET

RESET

Q976.Q977

PS2

PS2

Q881.Q882

ILM. ADJ.

DIM ILM.ADJ

Q701.Q702

STANDBY

/STBO CTRL

D851

POWER

ANT

ANT

X701

8MHz

X702

32.768KHz

X551

16.9344MHz

IC705

LEVEL SHIFT

IC702

SUB CPU

CN501

CN101

CN901J321

J1

LCD_CL5
LCD_DA5
LCD_CE5

/STBO
/HOLD
/RST
SUB_SCLK
SUB_TXD
SUB_RXD
SUB_RQ
SUB_CS

LCD_CL3
LCD_DA3
LCD_CE3

X1

4MHz

CD mechanism control section