Sony CDXGT-32-W, CDXGT-320, CDXGT-370, CDXGT-370-S Service manual

CDX-GT32W/GT320/

GT370/GT370S

SERVICE MANUAL

Ver. 1.0 2007. 07

(Photo: CDX-GT370)

• The tuner and CD sections have no adjustments.

AUDIO POWER SPECIFICATIONS (CDX-GT32W/GT320)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION

23.2 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 5% total harmonic distortion.

Model Name Using Similar Mechanism CDX-GT22W/GT120/GT220
CD Drive Mechanism Type MG-101TC-188//C
Optical Pick-up Name DAX-25A

US Model

CDX-GT32W/GT320

Canadian Model

CDX-GT32W

E Model

CDX-GT370/GT370S

CD player section

Signal-to-noise ratio 120 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit

Tuner section
FM

Tuning range CDX-GT32W/GT320:

87.5 – 107.9 MHz
CDX-GT370/GT370S:

87.5 – 108.0 MHz (at 50 kHz step)

87.5 – 107.9 MHz (at 200 kHz step)

FM tuning interval CDX-GT370/GT370S:

50 kHz/200 kHz switchable
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 9 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 67 dB (stereo), 69 dB (mono)
Harmonic distortion at 1 kHz

0.5% (stereo), 0.3% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz

SPECIFICATIONS

AM (CDX-GT32W/GT320)

Tuning range 530 – 1,710 kHz
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV

MW (CDX-GT370/GT370S)

Tuning range 531 – 1,602 kHz (at 9 kHz step)

530 – 1,710 kHz (at 10 kHz step)
MW tuning interval 9 kHz/10 kHz switchable
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV

– Continued on next page –

FM/AM COMPACT DISC PLAYER

CDX-GT32W/GT320

9-887-798-01

2007G04-1
© 2007. 07

FM/MW/SW COMPACT DISC PLAYER

CDX-GT370/GT370S

Sony Corporation

eVehicle Division
Published by Sony Techno Create Corporation

CDX-GT32W/GT320/GT370/GT370S

SW (CDX-GT370/GT370S)

Tuning range SW1: 2,940 – 7,735 kHz

Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV

Power amplifier section

Outputs Speaker outputs (sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output

General

Output Audio outputs terminal

Inputs Bus control input terminal

Tone controls Low: ±10 dB at 60 Hz (XPLOD)

Loudness +4 dB at 100 Hz

Power requirements 12 V DC car battery (negative ground)
Dimensions Approx. 178 × 50 × 179 mm

Mounting dimensions Approx. 182 × 53 × 162 mm

Mass Approx. 1.2 kg (2 lb. 11 oz.)
Supplied accessories Parts for installation and connections (1 set)

SW2: 9,500 – 18,135 kHz
(except for 10,140 – 11,575 kHz)

52 W × 4 (at 4 ohms)

CDX-GT32W/GT320:
Front, Sub/Rear switchable
CDX-GT370/GT370S:
Sub/Rear switchable
Power antenna (aerial) relay control terminal
Power amplifier control terminal

Bus audio input terminal
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)

Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)

+2 dB at 10 kHz

(7

1/8 × 2 × 7 1/8 in.) (w/h/d)

(7 1/4 × 2 1/8 × 6 1/2 in.) (w/h/d)

Card remote commander: RM-X151

Notes on Chip Component Replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged

by heat.

TEST DISCS

Please use the following test discs for the check on the CD section.

YDES-18 (Part No. 3-702-101-01)
PATD-012 (Part No. 4-225-203-01)

CAUTION

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.

If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fix ed resistor located at the side of optical pick­up block.

optical pick-up

Design and specifications are subject to change without
notice.

SERVICE NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick­up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

semi-fixed resistor

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

2

CDX-GT32W/GT320/GT370/GT370S

This compact disc player is classified as a CLASS 1 LASER
product. The CLASS 1 LASER PRODUCT label is located on the
exterior.

• CDX-GT370/GT370S

This label is located on the bottom of the chassis.

• CD Playback

You can play CD-DA (also containing CD TEXT) and CD-R/
CD-RW (MP3/WMA files).

Type of discs Label on the disc

CD-DA

MP3

WMA

UNLEADED SOLDER

•

Boards requiring use of unleaded solder are printed with the lead­free mark (LF) indicating the solder contains no lead.
(Caution:Some printed circuit boards may not come printed with

the lead free mark due to their particular size.)

TABLE OF CONTENTS

1. SERVICE NOTE........................................................ 4

2. GENERAL

Location of Controls (CDX-GT32W/GT320)................. 5

Connections (CDX-GT32W/GT320) .............................. 5

Location of Controls (CDX-GT370/GT370S) ................ 7

Connections (CDX-GT370/GT370S).............................. 7

3. DISASSEMBLY

3-1. Sub Panel Assy ................................................................ 10

3-2. CD Mechanism Block ..................................................... 10

3-3. Main Board...................................................................... 11

3-4. Servo Board..................................................................... 11

3-5. Chassis (T) Sub Assy....................................................... 12

3-6. Roller Arm Assy .............................................................. 12

3-7. Chassis (OP) Assy ........................................................... 13

3-8. Chucking Arm Sub Assy ................................................. 13

3-9. Sled Motor Assy .............................................................. 14

3-10. Optical Pick-up Section................................................... 15

3-11. Optical Pick-up................................................................ 15

4. DIAGNOSIS FUNCTION........................................ 16

5. DIAGRAMS

5-1. Block Diagram –Main Section– ...................................... 19

5-2. Block Diagram –Display Section– .................................. 20

5-3. Printed Wiring Board –Main Section– ............................ 21

5-4. Schematic Diagram –Main Section (1/4)– ...................... 22

5-5. Schematic Diagram –Main Section (2/4)– ...................... 23

5-6. Schematic Diagram –Main Section (3/4)– ...................... 24

5-7. Schematic Diagram –Main Section (4/4)– ...................... 25

5-8. Printed Wiring Board –Key Section– .............................. 26

5-9. Schematic Diagram –Key Section–................................. 27

6. EXPLODED VIEWS

6-1. Main Section.................................................................... 31

6-2. Front Panel Section ......................................................... 32

6-3. CD Mechanism Section (MG-101TC-188//C) ................ 33

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution:The printed pattern (copper foil) may peel away if the

heated tip is applied for too long, so be careful!

• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.

• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

7. ELECTRICAL PARTS LIST .................................. 34

3

CDX-GT32W/GT320/GT370/GT370S

D

k

SECTION 1

SERVICE NOTE

EXTENSION CABLE AND SERVICE POSITION

When repairing or servicing this set, connect the jig (extension cable)
as shown below.

• Connect the MAIN board (CNP301) and the SER VO board (CN2)
with the extension cable (Part No. J-2502-076-1).

MAIN BOARD
CNP301

J-2502-076-1

NOTE FOR REPLACEMENT OF THE SERVO BOARD

When repairing, the complete SER VO board (A-1201-631-A) should
be replaced since any parts in the SER V O board cannot be repaired.

NOTE FOR REPLACEMENT OF THE AUX JACK (J901)

To replace the AUX jack requires alignment.

1. Insert the AUX jack into the KEY board.

2. Place the KEY board on the front panel.

3. Solder the three terminals of the jack.

KEY board

AUX jac

SERVO BOAR
CN2

front panel

4

SECTION 2

qaq

q;9

q

q

q

GENERAL

• LOCATION OF CONTROL (CDX-GT32W/GT320)

Location of controls and basic operations

Main unit

1

2

OFF

EQ3

SEEK

DSPL

PUSH SELECT

SOURCE

MODE

s

SEEK

BTM

d

4 5 8673

1623 54

qf

AUX

PAUSEREP SHUF

g

This section contains instructions on the location
of controls and basic operations.
For details, see the respec tive page s.
For optional device (CD/MD changer, etc.)
operation, see “Using optional equipment” on
page 10. The corresponding buttons on the card
remote commander control the same func tions a s
those on the unit.

A OFF button

To po wer off; stop the source.

B EQ 3 (equa liz er ) button page 9

To se lect an equalizer type (XPLOD,
VOCAL, EDGE, CRUISE, SPACE,
GRAVITY, CUSTOM or OFF).

C Vo lume control dial/select button

page 9

To ad ju st vol ume (rotate); select setup items
(press and rotate).

D SOURCE button

To po wer on; change the source* (Radio/CD/
AUX).

E Disc slot

Insert the disc (label side up), playback
starts.

F Display window
G AUX input jack page 10

To co nnect a portable audi o devic e.

H Z (eject) button

To ej ec t the disc.

I (front panel release) button page 5

h

CDX-GT32W/GT320/GT370/GT370S

This section is extracted
from instruction manual.

J DSPL (display)/SCRL (scroll) button

(CDX-GT320/GT32W/GT220/GT22W)

page 8

To ch ange display items (press); scroll the
display item (press and hold).

DSPL (display) button (CDX-GT120/
GT12W) page 8

To ch ange display items.

K SEEK –/+ buttons

CD:
To sk ip tracks (press); skip tracks
continuously (press, then press again within
about 1 second and hold); reverse/fast­forward a track (press and hold).
Radio:
To tune in stations automatically (press); f ind
a station manually (press and ho ld).

L MODE button page 8

To se le ct the radio band (FM/AM) * .

M BTM/CAT button (CDX-GT320/GT32W)

page 8

To st art the BTM function (press and hold).

BTM button (CDX-GT220/GT22W/
GT120/GT12W) page 8

To st art the BTM function (press and hold).

N RESET button (located behind the front

panel) (CDX-GT320/GT32W only)

page 5

O Number buttons

CD:

(1)/(2): ALBM –/+ (during MP3/WMA
playback) (CDX-GT320/GT32W/GT220/

GT22W)

To s ki p a lbums (press); skip albums
continuously (press and hold) .

(3): REP page 8
(4): SHUF page 8
(6): PAUS E

To p ause playback of a CD on this uni t.
To c an cel, press again.

Radio:
To re ce ive stored stations (press); store
stations (press and hold).

P Receptor for the card remote

commander (CDX-GT320/GT32W/
GT220/GT22W only)

The following buttons on the card remote
commander have also different buttons/functions
from the unit. Remove the insulation film before
use (page 5) (CDX-GT320/GT32W only).

qj < (. )/, (>) buttons

To cont rol CD/radio, the same as (SEEK)
–/+ on the unit.
Setup, sound setting, etc., can be operated by
< ,.

qk DSPL (display) button

To change display items.

ql VOL (volume) +/– button

To adju st volume.

w; ATT (attenuate) button

To atte nuate the sound. To cancel, press
again.

wa SEL (select) button

The same as the select button on the unit.

ws M (+)/m (–) buttons

To cont rol CD, the same as (1)/(2) (ALBM
–/+) on the unit.
Setup, sound setting, etc., can be operated by
M m.

wd SCRL (scroll) button

To s c roll the display item.

wf Number buttons

To r e ceive stored stations (pre ss); store
stations (press and hold).

*

In the case of a CD/MD changer or SAT tuner being
connected; when
connected device (“MD, ” “XM” or “SR”) will appear in
the display, depending on which device is
connected. Furthermore, if
can switch the changer, or SAT tuner band (CDX­GT320/GT32W only).

Note

If the unit is turned off and the display disappears, it
cannot be operated with the card remote commander
unless
inserted to activate the unit first.

(SOURCE)

(SOURCE)

on the unit is pressed, or a disc is

is pressed, the

(MODE)

is pressed, you

6

• CONNECTIONS (CDX-GT32W/GT320)

CDX-GT320/GT32W

A

*

AUDIO OUT SUB/REAR

AUDIO OUT FRONT

AUDIO OUT REAR

CDX-GT320/GT32W

AUDIO OUT FRONT

AUDIO OUT REAR

*

*

Connection example

Notes

(2-A)

•

Be sure to connect the ground (earth) lead before connecting
the amplifi er.

•

The alarm will only sound if the built-in amplifi er is used.

(2-B)

Tips

•

When connecting only a single CD/MD changer or other
optional device, connect directly to this unit.

•

For connecting two or more CD/MD changers or other
optional devices, the source selector XA-C40 (not supplied) is
necessary.

Exemple de raccordement

Remarques

•

•

Conseils

•

•

(2-A)

Raccordez d’abord le câble de mise à la masse avant de
raccorder l’amplifi cateur.
L’alarme est émise uniquement lorsque l’amplifi cateur intégré
est utilisé.

(2

-

)

En cas de raccordement d’un seul changeur de CD/MD
uniquement ou d’autres appareils en option, raccordez-le/les
directement à cet appareil.
Le sélecteur de source XA-C40 (non fourni) est nécessaire
pour raccorder deux changeurs de CD/MD ou plus ou d’autres
appareils en option.

B

7

AUDIO OUT SUB/REAR

*

CDX-GT320/GT32W

B

BUS AUDIO IN

Source selector*

Sélecteur de source*

XA-C40

BUS CONTROL IN

*

not supplied

non fourni

5

CDX-GT32W/GT320/GT370/GT370S

CDX-GT320/GT32W

from car antenna (aerial)
à partir de l’antenne

3

Left
Gauche

Right
Droit

Left
Gauche

Right
Droit

2

*

BUS AUDIO IN

du véhicule

AMP REM
Max. supply current 0.3 A

Courant max. fourni 0,3 A

1

*

AUDIO OUT

*

REAR FRONT

BUS

IN

AUDIO OUT

3

REAR

*

Blue/white striped
Rayé bleu/blanc

White
Blanc

White/black striped
Rayé blanc/noir

Gray
Gris

Gray/black striped
Rayé gris/noir

Green
Vert

Green/black striped
Rayé vert/noir

Purple
Violet

Purple/black striped
Rayé volet/noir

2

L

R

Fuse (10 A)
Fusible (10 A)

Supplied with XA-C40
Fourni avec le XA-C40

AUDIO OUT

FRONT

*

1

CONTROL IN

2

Black
Noir

Blue
Bleu

Red
Rouge

Yellow
Jaune

CDX-GT320
CDX-GT32W

BUS

1

*

Source selector

(not supplied)

Sélecteur de source

(non fourni)

XA-C40

Max. supply current 0.1 A

Courant max. fourni 0,1 A

Supplied with the CD/MD changer
Fourni avec le changeur de CD/MD

1

CDX-GT320/GT32W only

*

2

*

RCA pin cord (not supplied)

3

*

AUDIO OUT can be switched SUB or

REAR. For details, see the supplied
Operating Instructions.

1

*

CDX-GT320/GT32W uniquement

2

*

Cordon à broche RCA (non fourni)

3

*

AUDIO OUT peut être commuté sur SUB
ou REAR. Pour obtenir plus de détails,
reportez-vous au mode d’emploi fourni.

1

ANT REM

2

4

5

1

*

Connection diagram

1 To a metal surface of the car

First connect the black ground (earth) lead, then connect the
yellow and red power supply leads.

2 To the power antenna (aerial) control lead or

power supply lead of antenna (aerial) booster

Notes

•

It is not necessary to connect this lead if there is no power
antenna (aerial) or antenna (aerial) booster, or with a
manually-operated telescopic antenna (aerial).

•

When your car has a built-in FM/AM antenna (aerial) in
the rear/side glass, see “Notes on the control and power
supply leads.”

3 To AMP REMOTE IN of an optional power

amplifi er

This connection is only for amplifi ers. Connecting any other
system may damage the unit.

4 To the +12 V power terminal which is

energized in the accessory position of the
ignition switch

Notes

•

If there is no accessory position, connect to the +12 V
power (battery) terminal which is energized at all times.

Be sure to connect the black ground (earth) lead to a

metal surface of the car fi rst.

•

When your car has a built-in FM/AM antenna (aerial) in
the rear/side glass, see “Notes on the control and power
supply leads.”

5 To the +12 V power terminal which is

energized at all times

Be sure to connect the black ground (earth) lead to a metal
surface of the car fi rst.

Notes on the control and power supply leads

•

The power antenna (aerial) control lead (blue) supplies +12 V
DC when you turn on the tuner.

•

When your car has built-in FM/AM antenna (aerial) in the rear/
side glass, connect the power antenna (aerial) control lead
(blue) or the accessory power supply lead (red) to the power
terminal of the existing antenna (aerial) booster. For details,
consult your dealer.

•

A power antenna (aerial) without a relay box cannot be used
with this unit.

Memory hold connection

When the yellow power supply lead is connected, power will
always be supplied to the memory circuit even when the ignition
switch is turned off.

Notes on speaker connection

•

Before connecting the speakers, turn the unit off.

•

Use speakers with an impedance of 4 to 8 ohms, and with
adequate power handling capacities to avoid its damage.

•

Do not connect the speaker terminals to the car chassis, or
connect the terminals of the right speakers with those of the
left speaker.

•

Do not connect the ground (earth) lead of this unit to the
negative (–) terminal of the speaker.

•

Do not attempt to connect the speakers in parallel.

•

Connect only passive speakers. Connecting active speakers
(with built-in amplifi ers) to the speaker terminals may damage
the unit.

•

To avoid a malfunction, do not use the built-in speaker leads
installed in your car if the unit shares a common negative (–)
lead for the right and left speakers.

•

Do not connect the unit’s speaker leads to each other.

Note on connection

If speaker and amplifi er are not connected correctly, “FAILURE”
appears in the display. In this case, make sure the speaker and
amplifi er are connected correctly.

Schéma de raccordement

1 À un point métallique de la voiture

Branchez d’abord le câble de mise à la masse noir et,
ensuite, les câbles d’alimentation jaune et rouge.

2 Au câble de commande d’antenne électrique

ou au câble d’alimentation de l’amplifi cateur
d’antenne

Remarques

•

Il n’est pas nécessaire de raccorder ce câble s’il n’y a pas
d’antenne électrique ni d’amplifi cateur d’antenne, ou avec
une antenne télescopique manuelle.

•

Si votre voiture est Èquipée d’une antenne FM/AM
intégrée dans la vitre arrière/latérale, voir « Remarques
sur les câbles de commande et d’alimentation ».

3 Au niveau de AMP REMOTE IN de

l’amplifi cateur de puissance en option

Ce raccordement s’applique uniquement aux amplifi cateurs.
Le branchement de tout autre système risque
d’endommager l’appareil.

4 À la borne +12 V qui est alimentée quand la

clé de contact est sur la position accessoires

Remarques

•

S’il n’y a pas de position accessoires, raccordez la borne
d’alimentation (batterie) +12 V qui est alimentée en
permanence.
Raccordez d’abord le câble de mise à la masse noir à un
point métallique du véhicule.

•

Si votre voiture est équipée d’une antenne FM/AM
intégrée dans la vitre arrière/latérale, voir « Remarques
sur les câbles de commande et d’alimentation ».

5 À la borne +12 V qui est alimentée en

permanence

Raccordez d’abord le câble de mise à la masse noir à un
point métallique du véhicule.

Remarques sur les câbles de commande et d’alimentation

•

Le câble de commande d’antenne électrique (bleu) fournit une
alimentation de + 12 V CC lorsque vous mettez la radio sous
tension.

•

Lorsque votre voiture est équipée d’une antenne FM/AM
intégrée dans la vitre arrière/latérale, raccordez le câble de
commande d’antenne (bleu) ou le câble d’alimentation des
accessoires (rouge) à la borne d’alimentation de l’amplifi cateur
d’antenne existant. Pour plus de détails, consultez votre
détaillant.

•

Une antenne électrique sans boîtier de relais ne peut pas être
utilisée avec cet appareil.

Raccordement pour la conservation de la mémoire

Lorsque le câble d’alimentation jaune est raccordé, le circuit
de la mémoire est alimenté en permanence même si la clé de
contact est sur la position d’arrêt.

Remarques sur le raccordement des haut-parleurs

•

Avant de raccorder les haut-parleurs, mettez l’appareil hors
tension.

•

Utilisez des haut-parleurs ayant une impédance de 4 à 8 ohms
avec une capacité électrique adéquate pour éviter de les
endommager.

•

Ne raccordez pas les bornes du système de haut-parleurs au
châssis de la voiture et ne raccordez pas les bornes du haut­parleur droit à celles du haut-parleur gauche.

•

Ne raccordez pas le câble de mise à la masse de cet appareil
à la borne négative (–) du haut-parleur.

•

N’essayez pas de raccorder les haut-parleurs en parallèle.

•

Raccordez uniquement des haut-parleurs passifs. Le
raccordement de haut-parleurs actifs (avec amplifi cateurs
intégrés) aux bornes des haut-parleurs peut endommager
l’appareil.

•

Pour éviter tout problème de fonctionnement, n’utilisez pas les
câbles des haut-parleurs intégrés installés dans votre voiture si
l’appareil possède un câble négatif commun (–) pour les haut­parleurs droit et gauche.

•

Ne raccordez pas entre eux les cordons des haut-parleurs de
l’appareil.

Remarque sur le raccordement

Si les haut-parleurs ne sont pas raccordés correctement, le
message « FAILURE » s’affi che. Dans ce cas, assurez-vous que
les haut-parleurs sont bien raccordés.

6

• LOCATION OF CONTROL (CDX-GT370/GT370S)

Location of controls and basic operations

Main unit

1

2

OFF

EQ3

SEEK

DSPL

Card remote commander
RM-X151 (CDX-GT370S/GT370/
GT270S/GT270 only)

1

OFF

4

SOURCE

qk

DSPL

ql

132

465

w;

6

qa qsq;9

SEL

+

–

+

VOL

–

4 5 8673

PUSH SELECT

SOURCE

SEEK

MODE

BTM

qf qg

qd

ATT

MODE

SCRL

1623 54

This section contains instructions on the location
of controls and basic operations.
For details, see the respective page s.
For optional device (CD/MD changer, etc.,)
operation, see “Using optional equipment” on
page 10. The corresponding buttons on t he card

wa

remote commander control the same func tions a s
those on the unit.

ws

A OFF button

qs

wd

wf

wg

To po wer off; stop the source.

B EQ 3 (equalizer) button page 9

To select an equalizer type (XPLOD,
VOCAL, EDGE, CRUISE, SPACE,
GRAVITY, CUSTOM or OFF).

C Vo lume control dial/select button

page 9

To ad ju st volume (rotate); select setup items
(press and rotate).

D SOURCE button

To po wer on; change the source* (Radio/CD/
AUX).

E Disc slot

Insert the disc (label side up), playback
starts.

F Display window
G AUX input jack page 10

To co nnect a portable audi o devic e.

H Z (eject) button

To ej ec t the disc.

I (front panel release) button page 5

AUX

PAUSEREP SHUF

qjqh

CDX-GT32W/GT320/GT370/GT370S

J DSPL (display)/SCRL (scroll) button

(CDX-GT370S/GT370/GT270S/GT270)

page 8

To ch ange display items (press); scroll the
display item (press and hold).

DSPL (display) button (CDX-GT170S/
GT170) page 8

To ch ange display items.

K SEEK –/+ buttons

CD:
To sk ip tracks (press); skip tracks
continuously (press, then press again within
about 1 second and hold); reverse/fast­forward a track (press and hold).
Radio:
To tune in stations automatically (press); f ind
a station manually (press and ho ld).

L MODE button page 8

To se le ct the radio band (FM/MW/ SW)*.

M BTM button page 8

To st art the BTM function (press and hold).

N RESET button (located behind the front

panel) (CDX-GT370S/G T370 only)

page 5

O Frequ ency select switch (located on the

bottom of the unit)
See “Frequency select switch” i n t he
supplied installation/connections manual.

P Number buttons

CD:

(1)/(2): ALBUM –/+ (during MP3/WMA
playback) (CDX-GT370S/GT370/

GT270S/GT270)

To s kip albums (press); skip albums
continuously (press and hold) .

(3): REP page 8
(4): SHUF page 8
(6): PAUS E

To p ause playback of a CD on this unit .
To c an cel, press again.

Radio:
To re ce ive stored stations (press); store
stations (press and hold).

Q Receptor for the card remote

commander (CDX-GT370S/GT 370/
GT270S/GT270 only)

The following buttons on the card remote
commander have also different buttons/functions
from the unit. Remove the insulation film before
use (page 5) (CDX-GT370S/GT370/GT270S/
GT270 only).

qk < (. )/, (>) buttons

To control CD/radio, the same as (SEEK)
–/+ on the unit.
Setup, sound setting, etc ., can be oper ated by
< ,.

ql DSPL (display) button

To change display items.

w; VOL (volume) +/– button

To adju st volume.

wa ATT (attenuate) button

To atte nuate the sound. To cancel, press
again.

ws SEL (select) button

The same as the select button on the unit.

wd M (+)/m (–) buttons

To control CD, the same as (1)/(2)
(ALBUM –/+) on the unit.
Setup, sound setting, etc ., can be oper ated by
M m.

wf SCRL (scroll) button

To s c roll the display item.

wg Number buttons

To r e ceive stored stat ions (press); store
stations (press and hold).

*

In the case of a CD/MD changer being connected;

(SOURCE)

is pressed, the connected device

when
(“MD”) will appear in the display, depending on
which device is connected. Furthermore, if
is pressed, you can switch the changer (CDX­GT370S/GT370 only).

Note

If the unit is turned off and the display disappears, it
cannot be operated with the card remote commander
unless

(SOURCE)

inserted to activate the unit first.

on the unit is pressed, or a disc is

(MODE)

7

• CONNECTIONS (CDX-GT370/GT370S)

A

AUDIO OUT REAR

*

AUDIO OUT SUB/REAR

AUDIO OUT REAR

*

AUDIO OUT SUB/REAR

*

*

Connection example

Notes

(2-A)

•

Be sure to connect the ground (earth) lead before connecting
the amplifi er.

•

The alarm will only sound if the built-in amplifi er is used.

Ejemplo de conexiones

Notas

(2-A)

•

Asegúrese de conectar primero el cable de conexión a masa
antes de realizar la conexión del amplifi cador.

•

La alarma sonará únicamente si se utiliza el amplifi cador
incorporado.

B

CDX-GT370S/GT370

BUS AUDIO IN

BUS CONTROL IN

7

CDX-GT32W/GT320/GT370/GT370S

from car antenna (aerial)
desde la antena del automóvil

3

Left
Izquierdo

Right
Derecho

Left
Izquierdo

Right
Derecho

2

*

BUS AUDIO IN

AMP REM
Max. supply current 0.3 A

Corriente máx. de alimentación de 0,3 A

1

*

AUDIO OUT

REAR

Blue/white striped
Con rayas azules y blancas

White
Blanco

White/black striped
Con rayas blancas y negras

Gray
Gris

Gray/black striped
Con rayas grises y negras

Green
Verde

Green/black striped
Con rayas verdes y negras

Purple
Morado

Purple/black striped
Con rayas moradas y negras

BUS

IN

REAR FRONT

AUDIO OUT

3

*

L

R

Fuse (10 A)
Fusible (10 A)

CDX-GT370S/GT370

Supplied with the CD/MD changer
Suministrado con el cambiador de CD/MD

CDX-GT370S/GT370

BUS

CONTROL IN

1

*

2

Black
Negro

Blue
Azul

Max. supply current 0.1 A

Red
Rojo

Yellow
Amarillo

Corriente máx. de alimentación de 0,1 A

1

*

ANT REM

1

*

CDX-GT370S/GT370 only

2

*

RCA pin cord (not supplied)

3

*

AUDIO OUT can be switched SUB or REAR.

For details, see the supplied Operating
Instructions.

1

*

Solo CDX-GT370S/GT370

2

*

Cable con terminales RCA (no suministrado)

3

*

AUDIO OUT (salida de audio) puede
cambiarse a SUB (secundaria) o REAR
(posterior). Para obtener información,
consulte el manual de instrucciones
suministrado.

1

2

4

5

Connection diagram

1 To a metal surface of the car

First connect the black ground (earth) lead, then connect the
yellow, and red power supply leads.

2 To the power antenna (aerial) control lead or

power supply lead of antenna (aerial) booster
amplifi er

Notes

•

It is not necessary to connect this lead if there is no power
antenna (aerial) or antenna (aerial) booster, or with a
manually-operated telescopic antenna (aerial).

•

When your car has a built-in FM/MW/SWantenna (aerial)
in the rear/side glass, see “Notes on the control and power
supply leads.”

3 To AMP REMOTE IN of an optional power

amplifi er

This connection is only for amplifi ers. Connecting any other
system may damage the unit.

4 To the +12 V power terminal which is

energized in the accessory position of the
ignition key switch

Notes

•

If there is no accessory position, connect to the +12 V
power (battery) terminal which is energized at all times.
Be sure to connect the black ground (earth) lead to a
metal surface of the car fi rst.

•

When your car has a built-in FM/MW/SW antenna (aerial)
in the rear/side glass, see “Notes on the control and power
supply leads.”

5 To the +12 V power terminal which is

energized at all times

Be sure to connect the black ground (earth) lead to a metal
surface of the car fi rst.

Notes on the control and power supply leads

•

The power antenna (aerial) control lead (blue) supplies +12 V
DC when you turn on the tuner.

•

When your car has built-in FM/MW/SW antenna (aerial) in the
rear/side glass, connect the power antenna (aerial) control
lead (blue) or the accessory power supply lead (red) to the
power terminal of the existing antenna (aerial) booster. For
details, consult your dealer.

•

A power antenna (aerial) without a relay box cannot be used
with this unit.

Memory hold connection

When the yellow power input lead is connected, power will
always be supplied to the memory circuit even when the ignition
switch is turned off.

Notes on speaker connection

•

Before connecting the speakers, turn the unit off.

•

Use speakers with an impedance of 4 to 8 ohms, and with
adequate power handling capacities to avoid its damage.

•

Do not connect the speaker terminals to the car chassis, or
connect the terminals of the right speakers with those of the
left speaker.

•

Do not connect the ground (earth) lead of this unit to the
negative (–) terminal of the speaker.

•

Do not attempt to connect the speakers in parallel.

•

Connect only passive speakers. Connecting active speakers
(with built-in amplifi ers) to the speaker terminals may damage
the unit.

•

To avoid a malfunction, do not use the built-in speaker leads
installed in your car if the unit shares a common negative (–)
lead for the right and left speakers.

•

Do not connect the unit’s speaker leads to each other.

Note on connection

If speaker and amplifi er are not connected correctly, “FAILURE”
appears in the display. In this case, make sure the speaker and
amplifi er are connected correctly.

Diagrama de conexión

1 A una superfi cie metálica del automóvil

Conecte primero el cable de conexión a masa negro, y
después los cables amarillo y rojo de fuente de alimentación.

2 Al cable de control de la antena motorizada

o al cable de fuente de alimentación del
amplifi cador de señal de la antena

Notas

•

Si no se dispone de antena motorizada ni de amplifi cador
de antena, o se utiliza una antena telescópica accionada
manualmente, no será necesario conectar este cable.

•

Si el automóvil incorpora una antena de FM/MW/SW en el
cristal trasero o lateral, consulte “Notas sobre los cables
de control y de fuente de alimentación”.

3 A AMP REMOTE IN de un amplifi cador de

potencia opcional

Esta conexión es sólo para amplifi cadores. La conexión de
cualquier otro sistema puede dañar la unidad.

4 Al terminal de alimentación de +12 V que

recibe energía en la posición de accesorio
del interruptor de encendido

Notas

•

Si no hay posición de accesorio, conéctelo al terminal de
alimentación (batería) de +12 V que recibe energía sin
interrupción.
Asegúrese de conectar primero el cable de conexión a
masa negro a una superfi cie metálica del automóvil.

•

Si el automóvil incorpora una antena de FM/MW/SW en el
cristal trasero o lateral, consulte “Notas sobre los cables
de control y de fuente de alimentación”.

5 Al terminal de alimentación de +12 V que

recibe energía sin interrupción

Asegúrese de conectar primero el cable de conexión a masa
negro a una superfi cie metálica del automóvil.

Notas sobre los cables de control y de fuente de
alimentación

•

El cable de control de la antena motorizada (azul) suministrará
cc de + 12 V cuando conecte la alimentación del sintonizador.

•

Si el automóvil dispone de una antena de FM/MW/SW
incorporada en el cristal trasero o lateral, conecte el cable
de control de antena motorizada (azul) o el cable de fuente
de alimentación auxiliar (rojo) al terminal de alimentación
del amplifi cador de antena existente. Para obtener más
información, consulte a su distribuidor.

•

Con esta unidad no es posible utilizar una antena motorizada
sin caja de relé.

Conexión para protección de la memoria

Si conecta el cable de fuente de alimentación amarillo, el circuito
de la memoria recibirá siempre alimentación, aunque apague el
interruptor de encendido.

Notas sobre la conexión de los altavoces

•

Antes de conectar los altavoces, desconecte la alimentación
de la unidad.

•

Utilice altavoces con una impedancia de 4 a 8 Ω con la
capacidad de potencia adecuada para evitar que se dañen.

•

No conecte los terminales de altavoz al chasis del automóvil,
ni conecte los terminales del altavoz derecho con los del
izquierdo.

•

No conecte el cable de conexión a masa de esta unidad al
terminal negativo (–) del altavoz.

•

No intente conectar los altavoces en paralelo.

•

Conecte solamente altavoces pasivos. Si conecta altavoces
activos (con amplifi cadores incorporados) a los terminales de
altavoz, puede dañar la unidad.

•

Para evitar fallas de funcionamiento, no utilice los cables de
altavoz incorporados instalados en el automóvil si la unidad
comparte un cable negativo común (–) para los altavoces
derecho e izquierdo.

•

No conecte los cables de altavoz de la unidad entre sí.

Nota sobre la conexión

Si el altavoz no está conectado correctamente, aparecerá
“FAILURE” en la pantalla. Si es así, compruebe la conexión del
altavoz.

8

SECTION 3

DISASSEMBLY

Note: This set can be disassemble according to the following sequence.

SET

3-1. SUB PANEL ASSY

(Page 10)

3-2. CD MECHANISM BLOCK

(Page 10)

CDX-GT32W/GT320/GT370/GT370S

3-3. MAIN BOARD

(Page 11)

3-4. SERVO BOARD

(Page 11)

3-5. CHASSIS (T) SUB ASSY

(Page 12)

3-6. ROLLER ARM ASSY

(Page 12)

3-7. CHASSIS (OP) ASSY

(Page 13)

3-8. CHUCKING ARM SUB ASSY

(Page 13)

3-9. SLED MOTOR ASSY

(Page 14)

3-10. OPTICAL PICK-UP SECTION

(Page 15)

3-11. OPTICAL PICK-UP

(Page 15)

9

CDX-GT32W/GT320/GT370/GT370S

s

Note: Follow the disassembly procedure in the numerical order given.

3-1. SUB PANEL ASSY

3

two claws

2

two claw

1

two

screws

(+PTT 2.6

×

6)

3-2. CD MECHANISM BLOCK

7

2

screw
(+PTT 2.6

×

CD mechanism block

6)

4

sub panel assy

6

3

bracket (CD)

5

two

(+PTT 2.6

screws

×

4)

10

4

CNP301

1

screw
(+PTT 2.6

×

6)

3-3. MAIN BOARD

)

)

1

three ground point

(+PTT 2.6

×

CDX-GT32W/GT320/GT370/GT370S

2

two

screws

(+PTT 2.6

screws

6)

×

8)

4

screw
(+PTT 2.6

0

MAIN board

×

5

9

heat sink

10)

two

(+P 2.6

screws

×

6

two

(+PTT 2.6

8

screw
(+PTT 2.6

8)

7

screws

screw
(+P 2.6

×

×

×

10)

10)

10

3-4. SERVO BOARD

WHT

RED

BLK

WHT

RED

BLK

RED

ORG

BLE
YEL

GRY

SERVO board

insulating sheet

3

2

toothed lock

(M 1.7

×

2.5)

screw

3

toothed lock

(M 1.7

×

screw

2.5)

1

Remove the eleven solders.

claw

5

SERVO board

4

optical pick-up (16 core
(CN1)

claw

11

CDX-GT32W/GT320/GT370/GT370S

3-5. CHASSIS (T) SUB ASSY

1

two precision

(+P 1.7

screws

×

2.2)

2

two precision

(+P 1.7

4

screws

×

2.2)

chassis (T) sub assy

3-6. ROLLER ARM ASSY

1

spring (RAL)

3

claw

5

roller arm assy

4

gear (RA1)

3

washer

12

2

spring (RAR)