Sony CDXGT-520, CDXGT-52-W Service manual

CDX-GT52W/GT520

SERVICE MANUAL

Ver. 1.0 2007. 07

Photo: CDX-GT52W

• The tuner and CD sections have no adjustments.

AUDIO POWER SPECIFICATIONS

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.

US Model

CDX-GT52W/GT520

Canadian Model

CDX-GT52W

Model Name Using Similar Mechanism NEW
CD Drive Mechanism Type MG-101FC-188//Q
Optical Pick-up Name DAX-25A

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 87.5 – 107.9 MHz
Antenna (aerial) terminal

External antenna (aerial) 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

Tuning range 530 – 1,710 kHz
Antenna (aerial) terminal

External antenna (aerial) 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

52 W × 4 (at 4 ohms)

General

Outputs Audio outputs terminal (front/rear)

Subwoofer output terminal (mono)
Power antenna (aerial) relay control terminal
Power amplifier control terminal

– Continued on next page –

9-887-792-01

2007G04-1
© 2007. 07

FM/AM COMPACT DISC PLAYER

Sony Corporation

eVehicle Division
Published by Sony Techno Create Corporation

CDX-GT52W/GT520

Inputs BUS control input terminal

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

Power requirements 12 V DC car battery (negative ground (earth))
Dimensions Approx. 178 × 50 × 180 mm

Mounting dimensions Approx. 182 × 53 × 162 mm

Mass Approx. 1.2 kg (2 lb. 11 oz.)
Supplied accessories Card remote commander: RM-X151

MPEG Layer-3 audio coding technology and patents licensed from
Fraunhofer IIS and Thomson.

Design and specifications are subject to change without
notice.

BUS audio input terminal
Remote controller 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)

(7 1/8 × 2 × 7 1/8 in.) (w/h/d)

(7

1/4 × 2 1/8 × 6 1/2 in.) (w/h/d)

Parts for installation and connections (1 set)

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.

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

semi-fixed resistor

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.

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.

SAFETY-RELATED COMPONENT WARNING!!

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

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.

2

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.

CDX-GT52W/GT520

D

• CD Playback

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

Type of discs Label on the disc

CD-DA

MP3

WMA

AAC

EXTENSION CABLE AND SERVICE POSITION

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

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.)

: 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.

• Connect the MAIN board (CN350) and the SER V O board (CN2)
with the extension cable (Part No. J-2502-076-1).

MAIN BOARD
CN350

J-2502-076-1

SERVO BOAR
CN2

3

CDX-GT52W/GT520

k

NOTE FOR REPLACEMENT OF THE SERVO BOARD

When repairing, the complete SER VO board (A-1177-362-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

front panel

TABLE OF CONTENTS

1. GENERAL

Location of controls and basic operations ....................... 5

Connections ..................................................................... 5

2. DISASSEMBLY

2-1. Sub (AUX) Panel Assy .................................................... 8

2-2. CD Mechanism Block ..................................................... 8

2-3. MAIN Board.................................................................... 9

2-4. SERVO Board.................................................................. 9

2-5. Chassis (T) Sub Assy....................................................... 10

2-6. Roller Arm Assy .............................................................. 10

2-7. Chassis (OP) Assy ........................................................... 11

2-8. Chucking Arm Sub Assy ................................................. 11

2-9. Sled Motor Assy .............................................................. 12

2-10. Optical Pick-up Section................................................... 13

2-11. Optical Pick-up................................................................ 13

3. DIAGNOSIS FUNCTION ........................................ 14

4. DIAGRAMS

4-1. Block Diagram –Main Section–...................................... 17

4-2. Block Diagram –Display Section–.................................. 18

4-3. Printed Wiring Board –Main Section– ............................ 19

4-4. Schematic Diagram –Main Section (1/3)– ...................... 20

4-5. Schematic Diagram –Main Section (2/3)– ...................... 21

4-6. Schematic Diagram –Main Section (3/3)– ...................... 22

4-7. Printed Wiring Board –Sub Section– .............................. 23

4-8. Schematic Diagram –Sub Section– ................................. 23

4-9. Printed Wiring Board –Panel Section–............................ 24

4-10. Schematic Diagram –Panel Section– .............................. 25

5. EXPLODED VIEWS

5-1. Main Section.................................................................... 29

5-2. Front Panel Section ......................................................... 30

5-3. CD Mechanism Section (MG-101FC-188//Q) ................ 31

6. ELECTRICAL PARTS LIST.................................. 32

4

• Location of controls and basic operations

9q

7

q

8 q

q

Location of controls and basic operations

Main unit

1

2

OFF

ALBM

SEEK SEEK

ALBM

Front panel removed

Card remote commander
RM-X151

1

OFF

3

qj

qk

ql

SOURCE

DSPL

132

465

SEL

+

–

+

VOL

–

6

RESET

SCRL

ATT

MODE

SOURCE

MODE

PUSH SELECT

BTM

;

a

w;
wa

q;

ws

wd

wf

4563

123456

s

DSPL

d

PAUSE SCRL

REPCAT SHUF

qg qhqf

This section contains instructions on the location
of controls and basic operations. For details, se e
the respective pages.
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 Volume control dial/select button

page 9

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

C SOURCE button

To po wer on; change the source (Radi o/ C D /
AUX)*.

D Display window
E AUX input jack page 10

To co nnect a portable audi o devic e.

OPEN

AUX

SECTION 1

GENERAL

F OPEN button page 5
G ALBM +/– buttons (during MP3/WMA/

AAC playback)
To sk ip albums (press); skip albums
continuously (press and hold).

H Receptor for the card remote

commander

I 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).

J MODE button page 8

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

K BTM/CAT button page8

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

L Number buttons

CD:

(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).

M DSPL (display)/SCRL (scroll) button

page 8

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

N RESET button page 4
O Z (eject) button page 5

To ej ect the disc.

P Disc slot page 5

To in se rt the disc.

CDX-GT52W/GT520

This section is extracted
from instruction manual.

The following buttons on the card remote
commander have also different buttons/functions
from the unit. Remove the insulation film before
use (page 4).

qj < (.)/, (>) buttons

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

qk DSPL (display) button

To change display items.

ql VOL (volume) +/– button

To adju st volume.

w; AT T ( 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 control CD, the same as (ALBM)
the unit.
Setup, sound setting, etc ., can be oper ated by
M m.

wd SCRL (scroll) button

To s c roll the display item.

wf Number buttons

To r e ceive stored stations (press); 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.

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

+/– on

7

• Connections

A

SUB OUT (MONO)

B

FRONT AUDIO

REAR AUDIO

BUS AUDIO IN

BUS CONTROL IN

BUS AUDIO IN

OUT

OUT

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

-

)

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

B

Source selector*

Sélecteur de source*

XA-C40

BUS CONTROL IN

*

not supplied

non fourni

5

CDX-GT52W/GT520

Source selector

1

*

Supplied with XA-C40
Fourni avec le XA-C40

(not supplied)

Sélecteur de source

(non fourni)

XA-C40

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

SUB OUT (MONO)

1

*

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

AMP REM

3

Max. supply current 0.3 A
Courant max. fourni 0,3 A

Left
Gauche

Right
Droit

Left
Gauche

Right
Droit

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

L

BUS AUDIO IN

REAR

AUDIO OUT

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
Mauve

Purple/black striped
Rayé mauve/noir

(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.

R

REAR

FRONT

BUS

AUDIO OUT

IN

Fuse (10 A)
Fusible (10 A)

FRONT

AUDIO OUT

2

REMOTE

IN

2

*

BUS

CONTROL IN

Black
Noir

Blue
Bleu

Red
Rouge

Yellow
Jaune

Max. supply current 0.1 A
Courant max. fourni 0,1 A

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’entrée d’alimentation jaune et rouge.

2 Vers le câble de commande d’antenne

électrique ou le 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 équipée 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

ANT REM

1

RCA pin cord (not supplied)

*

2

*

Insert with the cord upwards.

1

*

Cordon à broche RCA (non fourni)

2

*

Insérez avec le câble vers le haut.

1

2

4

5

•

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 l’entrée 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’entrée 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 des haut­parleurs 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 partage 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 le haut-parleur et l’amplifi cateur ne sont pas raccordés
correctement, le message « FAILURE » s’affi che. Dans ce cas,
assurez-vous que les haut-parleurs et l’amplifi cateur sont bien
raccordés.

6

SECTION 2

DISASSEMBLY

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

SET

2-1. SUB (AUX) PANEL ASSY

(Page 8)

2-2. CD MECHANISM BLOCK

(Page 8)

CDX-GT52W/GT520

2-3. MAIN BOARD

(Page 9)

2-4. SERVO BOARD

(Page 9)

2-5. CHASSIS (T) SUB ASSY

(Page 10)

2-6. ROLLER ARM ASSY

(Page 10)

2-7. CHASSIS (OP) ASSY

(Page 11)

2-8. CHUCKING ARM SUB ASSY

(Page 11)

2-9. SLED MOTOR ASSY

(Page 12)

2-10. OPTICAL PICK-UP SECTION

(Page 13)

2-11. OPTICAL PICK-UP

(Page 13)

7

CDX-GT52W/GT520

s

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

2-1. SUB (AUX) PANEL ASSY

3

two claws

2

two claw

1

two

screws

(+PTT 2.6

×

6)

2-2. CD MECHANISM BLOCK

7

2

screw
(+PTT 2.6

×

5

sub (AUX) panel assy

CD mechanism block

6)

6

bracket (CD)

3

4

flexible flat cable (17 core)
(CN702)

5

two

screws

(+PTT 2.6

×

4)

4

CN350

1

screw
(+PTT 2.6

×

6)

8

2-3. MAIN BOARD

)

1

three ground point

(+PTT 2.6

×

CDX-GT52W/GT520

7

screw
(+PTT 2.6

screws

6)

×

8

10)

insulating sheet

3

two

screws

(+P 2.6

×

8)

9

two

(+PTT 2.6

qs

4

CN410 (3P)

qd

MAIN board

screws

0

heat sink

×

10)

two

screws

(+P 2.6

qa

5

screw
(+PTT 2.6

×

8)

screw
(+PTT 2.6

×

×

2

two

(+PTT 2.6

10)

8)

screws

×

6

cord (RCA)

8)

2-4. SER VO BOARD

WHT

RED

BLK

WHT

RED

BLK

RED

ORG

BLE
YEL

GRY

1

Remove the eleven solders.

SERVO board

claw

2

toothed lock

(M 1.7

×

2.5)

screw

3

claw

toothed lock

(M 1.7

4

optical pick-up (16 core
(CN1)

screw

×

2.5)

5

SERVO board

9

CDX-GT52W/GT520

r

2-5. CHASSIS (T) SUB ASSY

1

two precision

(+P 1.7

×

2.2)

screws

2

two precision

(+P 1.7

4

screws

×

2.2)

chassis (T) sub assy

2-6. ROLLER ARM ASSY

1

spring (RAL)

3

claw

5

roller arm assy

4

gear (RA1)

3

washe

10

2

spring (RAR)

2-7. CHASSIS (OP) ASSY

)

1

7

coil spring (damper) (natural)

tension spring (KF)

4

slider (R)

6

chassis (OP) assy

5

8

coil spring (damper) (green

3

CDX-GT52W/GT520

lever (D)

2-8. CHUCKING ARM SUB ASSY

spring

1

3

chucking arm sub assy

2

2

gear (LE1)

Note: Have this portion receive the chassis.

Note: Be careful not to touch the turn table.

Note: Have this portion receive the chassis.

11

CDX-GT52W/GT520

2-9. SLED MOTOR ASSY

turn table

2

three serration

(M 2

×

3

stand

screws

3)

sled mtor assy

1

spring

spring

Note:
Never remove these parts since they were adjusted.

stand

Note: Place the stand with care not to touch the turn table.

Note for Assembly

three serration

(M 2

×

screws

3)

sled mtor assy

Note: Take care to prevent the chassis from being bent

when tightening the three machine screws.

12