Sony CDXF-50-M Service manual

CDX-F50M

SERVICE MANUAL

Ver. 1.2 2005. 10

• The tuner and CD sections have no adjustments.

AUDIO POWER SPECIFICATIONS (US MODEL)

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.

SPECIFICATIONS

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 – 108 MHz (at 50 kHz step)

87.5 – 107.9 MHz (at 200 kHz step)
FM tuning interval 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

Model Name Using Similar Mechanism CDX-F5510/F5510X/F5550EE
CD Drive Mechanism Type MG-611TA-186//K
Optical Pick-up Name KSS1000E

US Model

Canadian Model

AEP Model

UK Model

AM

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

530 – 1,710 kHz (at 10 kHz step)
AM tuning interval 9 kHz/10 kHz switchable
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 52 W × 4 (at 4 ohms)

General

Outputs Audio outputs terminal (front, sub/rear switchable)

Power antenna relay control terminal

Power amplifier control terminal
Inputs Telephone ATT control terminal

Illumination control terminal

BUS control input terminal

BUS audio input/AUX IN terminal

Remote controller input terminal

Antenna input terminal

9-879-490-03

2005J04-1
© 2005. 10

– Continued on next page –

FM/AM COMPACT DISC PLAYER

Sony Corporation

eVehicle Division
Published by Sony Engineering Corporation

1

CDX-F50M

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

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

Power requirements 12 V DC car battery

(negative ground)

Dimensions Approx. 178 × 50 × 177 mm

(7 1/8 × 2 × 7 in.) (w/h/d)

Mounting dimensions Approx. 182 × 53 × 161 mm

(7 1/4 × 2 1/8 × 6 3/8 in.) (w/h/d)

Mass Approx. 1.2 kg

(2 lb. 10 oz.)

Supplied accessories Parts for installation and connections (1 set)

Front panel case (1)

US and foreign patents licensed from Dolby Laboratories.

Note

This unit cannot be connected to a digital preamplifier or an equalizer which is Sony
BUS system compatible.

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.

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-fixed resistor located at the side of optical
pick-up 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

This set can playback CD-R and CD-ROM discs. The following
test discs should be used to check the capability:

CD-R test disc TCD-R082LMT (Part No. J-2502-063-1)
CD-RW test disc TCD-W082L (Part No. J-2502-063-2)

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 P ARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

This label is located on the bottom of the chassis.

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-F50M

D

• CD Playback:
You can play CD-DA (also containing CD TEXT*1), CD-R/CD­RW (MP3 files also containing Multi Session and ATRAC CD
(ATRAC3 and ATRAC3plus format).

Type of discs Label on the disc

CD-DA

MP3

ATRAC CD

*1 A CD TEXT disc is a CD-D A that includes information such as

disc, artist and track name.

EXTENSION CABLE AND SERVICE POSITION

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

z UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead
free 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 viscou-s (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 (CN751) and the SER V O board (CN2)
with the extension cable (Part No. J-2502-076-1).

MAIN BOARD
CN751

J-2502-076-1

SERVO BOAR
CN2

3

CDX-F50M

TABLE OF CONTENTS

1. GENERAL

Location of Controls................................................................ 5

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

2. DISASSEMBLY

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

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

2-3. Main Board ......................................................................... 9

2-4. Chassis (T) Sub Assy .......................................................... 9

2-5. Roller Arm Assy ................................................................ 10

2-6. Chassis (OP) Assy.............................................................10

2-7. Optical Pick-up ................................................................. 11

2-8. SL Motor Assy (M902) ..................................................... 11

2-9. LE Motor Assy (M903)..................................................... 12

2-10. Servo Board....................................................................... 12

3. DIAGRAMS

3-1. Block Diagram –CD Section–........................................... 13

3-2. Block Diagram –Main Section–........................................14

3-3. Block Diagram –Display Section–....................................15

3-4. Circuit Boards Location .................................................... 15

3-5. Printed Wiring Boards –CD Mechanism Section–............ 17

3-6. Schematic Diagram –CD Mechanism Section (1/2)– ....... 18

3-7. Schematic Diagram –CD Mechanism Section (2/2)– ....... 19

3-8. Schematic Diagram –Main Section (1/3)– ........................ 20

3-9. Schematic Diagram –Main Section (2/3)– ........................ 21

3-10. Schematic Diagram –Main Section (3/3)– ........................ 22

3-11. Printed Wiring Boards –Main Section– ............................ 23

3-12. Printed Wiring Board –Relay Section– ............................. 24

3-13. Printed Wiring Board –Display Section– .......................... 25

3-14. Schematic Diagram –Display Section–............................. 26

4. EXPLODED VIEWS

4-1. Main Section ..................................................................... 34

4-2. Front Panel Section ........................................................... 35

4-3. CD Mechanism Section (1) ............................................... 36

4-4. CD Mechanism Section (2) ............................................... 37

4-5. CD Mechanism Section (3) ............................................... 38

4-6. CD Mechanism Section (4) ............................................... 39

5. ELECTRICAL PARTS LIST ........................................ 40

4

• LOCATION OF CONTROL

7

Refer to the pages listed for details. The
corresponding buttons on the card remote
commander control the same functions as those
on the unit.

a DSO button 2

To sele ct the DSO mode (1, 2, 3 or OFF).
The larger the number, the more enhanced
the effect.

b SOURCE button

To power on/change the source (Radio/CD/
MD*

1

/AUX (CDX-F50M only)).

c Volume control dial/Select button 4,

9, 10,

To adju st volume (rotate); select items
(press).

d GP*

2

/PRESET +/– buttons

To s e le ct preset stations/skip groups (press);
skip groups continuously (press and ho ld ).

e Receptor for the card remo te

commander

f LIST/CAT*

3

butto n 9, 11

To l i st up.

g Display window
h OPEN button 5

To open the front panel.

i EQ3 (equalizer) button 9

To sele ct an equalizer type (XPLOD,
VOCAL, CLUB, JAZZ, NEWAGE, ROCK,
CUSTOM or OFF).

j MODE button 8, 11

To select the radio band (FM/AM)/select the
unit*

4

.

k SEEK –/+ buttons

Radio:
To tune in stations automatically (press); find
a station manually (press an d hold).
CD:
To s k ip tracks (press); skip tracks
continuously (press , t hen press again within
about 1 second and hold); fast- forward/
reverse a track (press and hold).

l DSPL (display) button 4, 8, 10

To cha n ge display items.

m SENS button

To i m pr ove weak reception: LOCAL/
MONO.

n BTM button 8

To s t art the BTM fu nction (press and hold).

o Number buttons

Radio:
To r e ce ive stored stations (press); store
stations (press and hold).
CD/MD*

1

:

(3): REP 8
(4): SHUF 8
(5): BBE MP*

5

3

To a c tivate the BBE MP function, to set
“B BEMP-ON” during playback on this unit.
To cancel, set “B BEMP-OFF.”

p Frequency select switch (located on the

bottom of the unit) (CDX-F50M only)
See “Frequency selec t sw i t ch” in the
supplied installation/connections manual.

q OFF button

To powe r off/stop the source.

r RESET button 4
s Z (eject) button 5

To eject the disc.

t Disc slot 5

To insert the disc.

The following buttons on the card remote
commander have also different buttons/functions
from the unit.

u < (.)/, (>) buttons

To control radio/CD, the same as (SEEK)
–/+ on the unit. (For details of other
operations, see “With the card remote
commander” on each pages.)

v VOL +/– button

To adjust volume.

w ATT (attenuate) button

To att e nuate the sound. To cancel, press
again.

x SEL (select) button

The same as the select button on the unit.

y M (+)/m (–) buttons

To control radio/CD, the same as
(GP/PRESET) +/– on the unit. (For details
of other operations, see “With the card
remote commander” on each pages.)

z SCRL button 8

To scroll the display item.

wj Number buttons

To receive stored stations (press); store
stations (press and hold).

*1

When an MD changer is connected.

*2

When an MP3/ATRAC CD is played and a changer
is not connected. If the changer is connected, the
operation is different, see page 11.

*3

When the XM tuner is connected.

*4

When a CD/MD changer is connected.

*5

The unit only.

Note

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

(SOURCE)

on the unit is pressed, or a disc is

inserted to activate the unit first.

Tip

For details on how to replace the battery, see
“Replacing the lithium battery of the card remote
commander” on page 15.

Location of controls and basic operations

Main unit

12345 6 87

P

U

E

R

S

P

/

E

S

P

T

G

H

D

I

A

L

L

E

I

S

C

R

U

O

S

DSO

SEEK SEEK

EQ3

M

O

D

E

90 qsqa qd qf qjqhqg

Front panel removed

S

E

T

L

C

E

A

C

T

T

L

P

S

D

qk ql w;

RESET

CDX-F50M

SECTION 1

GENERAL

OPEN

BBESHUFREP

BBE MP

21

BTMSENS

CDX-F50M

6543

OFF

This section is extracted
from instruction manual.

6

• CONNECTIONS

A

B

AUDIO OUT FRONT

AUDIO OUT REAR

BUS AUDIO IN

BUS CONTROL IN

BUS AUDIO IN

Source selector*

Sélecteur de source*

XA-C30

BUS CONTROL IN

not supplied

*

non fourni

Connection example (2)

Notes

(2-A)

Be sure to connect the ground lead before connecting the

•

amplifier.

•

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

Tip

(2-B-

For connecting two or more CD/MD changers, the source
selector XA-C30 (optional) is necessary.

)

Exemple de raccordement (2)

Remarques

•

•

Conseil

Dans le cas du raccordement de deux changeurs de CD/MD ou
plus, le sélecteur de source XA-C30 (en option) est requis.

(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

-B-

)

5

CDX-F50M

from car antenna
à partir de l’antenne de la voiture

3

Left
Gauche

Right
Droit

Left
Gauche

Right
Droit

1

*

BUS AUDIO IN/

AUX IN

*

AMP REM

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

2

*

L

R

AUDIO OUT

3

REAR

*

Blue/white striped
Rayé bleu/blanc

White
Blanc

White/black striped
Rayé blanc/noir

Grey
Gris

Grey/black striped
Rayé gris/noir

Green
Vert

Green/black striped
Rayé vert/noir

Purple
Mauve

Purple/black striped
Rayé mauve/noir

1

4

*

AUDIO OUT

FRONT

Fuse (10 A)
Fusible (10 A)

5

*

REMOTE

IN

6

*

BUS

CONTROL IN

2

Black
Noir

Blue
Bleu

Light blue
Bleu ciel

Orange/white striped
Rayé orange/blanc

Red
Rouge

Yellow
Jaune

Sélecteur de source

7

*

Max. supply current 0.1 A

Courant max. fourni 0,1 A

ILLUMINATION

Source selector

(not supplied)

(non fourni)

XA-C30

ANT REM

ATT

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

1

RCA pin cord (not supplied)

*

2

*

Be sure to match the color-coded cord

for audio to the appropriate jacks from
the unit. If you connect an optional
CD/MD unit, you cannot use AUX IN
terminal. (CDX-F50M only)

3

*

AUDIO OUT can be switched to SUB

or REAR. For details, see the supplied
operating instructions.

4

*

Auxiliary optional equipment such as

1

portable DVD player (not supplied)

5

*

Supplied with the auxiliary equipment

6

*

Insert with the cord upwards.

7

*

Supplied with XA-C30

2

1

*

Cordon à broche RCA (non fourni)

2

*

Veillez à faire correspondre le

code de couleurs audio aux ches
correspondantes de l’appareil. Si
vous raccordez un appareil CD ou

4

MD en option, vous ne pouvez pas
utiliser la borne AUX IN. (CDX-F50M
uniquement)

3

*

AUDIO OUT peut être commuté sur

SUB ou REAR. Pour obtenir plus de

5

détails, reportez-vous au mode
d’emploi.

4

*

Appareil auxiliaire en option, par

exemple un lecteur de DVD portable
(non fourni)

6

5

*

Fourni avec l’appareil auxiliaire

6

*

Insérez avec le câble vers le haut.

7

*

Fourni avec le XA-C30

7

Connection diagram (3)

1

To a metal surface of the car

First connect the black ground lead, then connect the
orange/white striped, yellow, and red power input leads.

To the power antenna control lead or power

2

supply lead of antenna booster ampli er

Notes

It is not necessary to connect this lead if there is no power

antenna or antenna booster, or with a manually-operated
telescopic antenna.

When your car has a built-in FM/AM antenna in the rear/

side glass, see “Notes on the control and power supply
leads.”

To AMP REMOTE IN of an optional power

3

amplifi er

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

To the interface cable of a car telephone

4

To a car’s illumination signal

5

Be sure to connect the black ground lead to a metal surface
of the car first.

To the +12 V power terminal which is

6

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 lead to a metal

surface of the car first.

When your car has a built-in FM/AM antenna in the rear/

side glass, see “Notes on the control and power supply
leads.”

To the +12 V power terminal which is

7

energized at all times

Be sure to connect the black ground lead to a metal surface
of the car first.

Notes on the control and power supply leads

•

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

•

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

•

A power antenna 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 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 ampli 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 (3)

16À un point métallique de la voiture

Branchez d’abord le fi l de masse noir et, ensuite, les fi ls
d’entrée d’alimentation rayé orange/blanc, 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 systéme risque
d’endommager l’appareil.

Vers le cordon de liaison d’un téléphone de

4

voiture
Vers le connecteur du signal d’éclairage de

5

la voiture

Raccordez díabord le fi l de masse noir à un point métallique
du véhicule.

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 ».

7 À la borne +12 V qui est alimentée en

permanence

Raccordez d’abord le càble 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 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 les haut-parleurs 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 PANEL ASSY (CD)

(Page 8)

2-2. CD MECHANISM BLOCK

(Page 8)

CDX-F50M

2-3. MAIN BOARD

(Page 9)

2-7. OPTICAL PICK-UP

(Page 11)

2-4. CHASSIS (T) SUB ASSY

(Page 9)

2-5. ROLLER ARM ASSY

(Page 10)

2-6. CHASSIS (OP) ASSY

(Page 10)

2-8. SL MOTOR ASSY (M902)

(Page 11)

2-10. SERVO BOARD

(Page 12)

2-9. LE MOTOR ASSY (M903)

(Page 12)

7

CDX-F50M

s

)

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

2-1. SUB PANEL ASSY (CD)

3

two claws

4

2

two claw

1

two

screws

(+PTT 2.6

x

6)

2-2. CD MECHANISM BLOCK

5

CD mechanism block

5

sub panel assy (CD)

7

bracket (CD)

CNP802 (12P)

6

two

(+PTT 2.6

screws

x

6)

2

screw

(+PTT 2.6

x

6)

3

4

CN751

1

screw

(+PTT 2.6

x

6

8

2-3. MAIN BOARD

)

3

MAIN board

1

three screws

(+BTT)

insulating sheet

2

two

screws

(+PTT 2.6

CDX-F50M

x

6

2-4. CHASSIS (T) SUB ASSY

2

two

screws

(+P 1.7

5

SENSOR board

3

claw

x

2.2)

4

claw

1

two

screws

x

(+P 1.7

6

2.2)

chassis (T) sub assy

9

CDX-F50M

2-5. ROLLER ARM ASSY

4

gear (RA1)

1

spring (RAL)

3

washer (1.1-2.5)

5

roller arm assy

2

spring (RAR)

2-6. CHASSIS (OP) ASSY

0

coil spring (damper)

4

washer

5

gear (LE1)

lever (D)

6

8

qa

chassis (OP) assy

1

CN1

9

two coil springs (damper)

7

slider (R)

10

2

Remove the six solderings.

3

tension coil spring (KF60)

2-7. OPTICAL PICK-UP

)

5

claw

2

chucking arm sub assy

1

tension coil spring (CHKG

7

optical pick-up

CDX-F50M

2-8. SL MOTOR ASSY (M902)

6

main shaft

4

rack (SL)

3

screw

(+B 1.4

x

5)

2

SL motor assy (M902)

1

screw

(+P 1.4

x

1.8)

11

CDX-F50M

2-9. LE MOTOR ASSY (M903)

qf

two toothed lock

(+M 1.4

bracket (LEM-N)

qs

(+M 1.7

screw

x

)

screws

2.5)

6

screw

(+P 1.7

x

qd

2.2)

qa

screw

(+M 1.7

qg

(M903)

0

gear (LE) assy

x

2.5)

LE motor assy

7

leaf spring (LE)

8

screw

(+M 1.7

9

2

x

bearing (LEB-N)

washer

gear (LE1)

3

lever (D)

2.5)

4

5

slider (R)

2-10. SERVO BOARD

1

Remove the eight solderings.

1

Remove the soldering.

6

SERVO board

2

Remove the three solderings.

4

toothed lock

(M 1.7)

5

screw

claw

12

3

CN1

3-1. BLOCK DIAGRAM — CD SECTION —

DETECTOR

PD2

PD1

E

F

LASER DIODE

PICK-UP BLOCK

(KSS1000E)

2-AXIS DEVICE

(FOCUS)

(TRACKING)

PD LD

OPTICAL

PD2

PD1

I-V AMP

MON OUT

FCS+

FCS–

TRK+

TRK–

FPI2

96

FNI2

94

FPI1

97

FNI1

95

E

F

LD

AUTOMATIC

POWER

CONTROL

M902

(SLED)

Q1

M

99

98

91

FOCUS/TRACKING COIL DRIVE,

16

15

18

17

14

13

RFRP

TNI

TPI

LDO

SLED/SPINDLE/LOADING

MOTOR DRIVE

VO4–

VO4+

VO3–

VO3+

VO1+

VO1–

SECTION 3

DIAGRAMS

87

RFO

3

TEI

6

92

MDI

IC1

OPIN4–

OPOUT4

OPIN3–

OPOUT3

OPOUT1

OPIN2

CDX-F50M

• R-ch is omitted due to same as L-ch.

• Signal Path

: CD PLAY

79

RFEQO

85

AGCI

86

RFDCI

RF AMP,DIGITAL SERVO,

DIGITAL SIGNAL PROCESSOR

RFZI

1

TEZI

7

26

25

23

22

4

7

IC2

77
78

9

10

46

12

13

RFI
RFRPI

F0O

TRO

IO0(/HSO)

FMO

DMO

MUTE

REQ
STBY
ZDET

/RST
/CCE

BUCK

BUS3
BUS2
BUS1
BUS0
SBSY

UNI SI

UNI SO

UNI CLK
BUS ON
B/U CHECK
SYS RST
ATT
LINK ON/OFF

IC801 (1/3)

VDD

CE

CD-L

15
3

30

LO

27

RO

XI

XO

R-CH

UNISI

56

RXD

25

UNISO

57

TXD

26

UNICKI

58

BUS ON

DEC XMUTE

56
53
43
18
42
41
40
39
38
37
36
14

23

24

X2

16.934MHz

SW1

(DOWN)

SW2

(SELF)

SW3

(DISC IN)

X1

12MHz

37

DEC INT

30

DEC SSTBY

27

CD ZDET

15

CD XRST

14

CD XCCE

13

CD BUCK

12

CD BUS3

11

CD BUS2

10

CD BUS1

8

CD BUS0

7

CD SBSY

52

X1

81

X0

80

MEC_DSW

46

MEC_SELFSW

53

MEC_INSW

45

CD

SYSTEM CONTROL

IC3

MECON CHK

BU IN
RSTX
A ATT

LINK OFF

EJECT OK

OPEN REQ

MECON

CDON

ZMUTE

CDON CHK

1.5V ON

50
51
75
60
59

SYSTEM CONTROL

61
62
63
64
66

67

68

+1.5V

1

MECHA+6V

SERVO+3.3V

+1.5V ON/OFF

SWITCH

Q2,3

+1.5V

EJECT OK

97

OPEN REQ

54

CDM ON

95

CD ON

94

Z MUTE

89

+1.5V REG

VOUT

IC6

MAIN

A

SECTION

(Page 14)

MAIN

B

SECTION

(Page 14)

U COM+3.3V

CDX-F50M

M901

(SPINDLE)

M903

(LOADING)

MUTE

FWD

REV

21

1

28

12

M

M

VO2+

11

VO2–

10

VOL+

9

VOL–

IO1(/UHSO)

47

SW4

(LIMIT)

42

43

44

MEC_LIMIT

MEC LOAD

MEC EJECT

13 13

CDX-F50M

3-2. BLOCK DIAGRAM — MAIN SECTION —

ELECTRONIC VOLUME

11
13

9

10

7
8

45
15

25
24

PJ601

(ANTENNA)

CD

SECTION

CD-L

A

(Page 13)

TUX601

(TUNER UNIT)

1

ANT

• R-CH is omitted due to same as L-CH.

• Signal Path

DISPLAY

SECTION

(Page 15)

CD

SECTION

(Page 13)

L

4

R

3

10

VCC

11

TU VDD

15

E2P VDD

13

TU-SCL

14

TU-SDA

6

S-METER

7

TU MUTE

16

E2P SCL

17

E2P SDA

: CD PLAY

: FM

: AM

: BUS AUDIO/AUX

RESET

C

SYS RST

BUS ON

UNI CLK

UNI SO

B

UNI SI

B/U CHECK

A ATT

LINK ON/OFF

AU+8V
TU+5V

U COM+3.3V

SCL
SDA

R-CH

R-CH

IC401

DIFEL
DIFFR

SE1L
SE1R

SE2L
SE2R

VSM
TU ATT

EEP SCK
EEP SIO

OUTLF

OUTLR

OUTRF

OUTRR

MUTE

SAOUT

SYSTEM CONTROL

IC801 (2/3)

IIC SCK

IIC SIO

SA CLK
SA DATA
VOL ATT

ACC IN

TEL ATT

TEST IN

BU IN

UNI SI

UNI SO
UNI SCK

BUS ON

SYS RST

D804

RL

16

RR

28

20

19

17
18

21

SCL

SDA

SAIN

ATT

BEEP

STB

DIAG

AUX

ILL

SCL

22

SDA

23

CLK

25

DATA

26

33
34
26
40

6
1

5
31
56

32

64

63

7

67

53
58
59
60
61
62

D818 D857

R-CH

R-CH (FRONT)
R-CH (REAR)

SCL
SDA
CLK

DATA

D858

MUTE

Q407

MUTE CONTROL

Q400,401

D702

D701

MUTE

Q405

10

8

9
11
12
13

D400

MUTE

Q404

BATT

BUS INTERFACE

IC900

B/U-C
DATA OUT
DATA IN
CLK IN
BUSON
RST

BATT

DATA I/O

CLK

BUS ON

RST

U-COM+3.3V

3

6

4

1

2

SDA
SCL

TU+5V

GROUND SWITCH

Q301

POWER AMP

IC100

12

FL

11

RL

2

SDA

4

SCL

16

ACGND

22

STB

25

DIAG

ACC CHECK

Q900

TEL ATT CHECK

Q901

ILL CHECK

Q912

TU+5V REG

Q601

+3.3V REG

IC803

BATTERY CHECK

Q902

BUS ON

CONTROL

LINK ON/OFF

CONTROL
Q903,904

Q905

LF+

LF–

LR+

LR–

SW1
SW2

VP
VP1
VP2

REG1
REG2
REG3
REG4
REG5

5
3

9
7

29
27

35
20

6

30
37
31
33
34

AU+8V

U-COM+5V

D912

BATT

AU+8V
U-COM+5V
SERVO+3.3V

MECHA+6V
DISP+B

BATT

R-CH

BATT

R-CH

R-CH

R-CH

F900

CNP901

TH900

1
9

2

10

4

12

3

11

5
6

16

7

13

14

15

6

5

4

L

R

L

R

L

R

FL+
FL-

RL+
RL-

FR+
FR­RR+
RR-

AMP-REM
ANT-REM

BATT

ACC

ATT

ILL

TEST

8

7

BUS

AUDIO IN

REAR

AUDIO IN

FRONT

AUDIO OUT

3

2

1

PJ401

CNJ900

BUS

CONTROL IN

CDX-F50M

1414

3-3. BLOCK DIAGRAM — DISPLAY SECTION — 3-4. CIRCUIT BOARDS LOCATION

)

CDX-F50M

CNP900

(REMOTE IN)

FREQUENCY

ROTARY

ENCODER

RE901(1/2)

KEY MATRIX

S901-919,931,

RE901(2/2)

S800

SELECT

10K

SYSTEM CONTROL

IC801 (3/3)

RE0

21

RE1

22

KEYIN0

38

KEYIN1

39

D801

KEY

ACKNOWLEDGE

SWITCH

Q800

D810

U COM+3.3V

9K

R800

R809

R808

47

75

74
41

46

KEY ACK

XKEY ON

RCIN1
RCIN0

DST SEL

LCD SO

LCD SCK

LCD CE

DOOR IND

28
29
27

73

BATT

78

DI
CLK

CL

77

CE

CE

76

LCD DRIVER

IC901

SEG66

COM1

COM4

DIMMER

DIMMER

DOOR INDICATOR

B+ SWITCH

SEG9

|

|

Q801,802

SENSOR board

SERVO board

7

|

64

65

|

68

79

LCD901

LIQUID

CRYSTAL

DISPLAY

PANEL

DIMMER

CONTROL

Q501

LED902,905

LCD

BACK LIGHT

()

SPEAKER board

tuner unit
(TUX601

DISP+B

SUB+B

LED907,908,

910-918,

921-923,927

LED930,931

DISPLAY board

RELAY board

MAIN board

U COM+3.3V

SECTION

(Page 14)

MAIN

RESET
IC802

OUT

2

IN

RESET

C

1

D805

S801

(NOSE DET)

X801

32.768kHz

S802

RESET

77

69

79

80

RESET

NOSE SW

X1A

X0A

SIRCS

65

82

X0

X1

83

REMOTE CONTROL

SIGNAL RECEIVER

IC951

1

VCC

OUT

2

X800

18.432MHz

DISP+B

IR

CDX-F50M

15 15

CDX-F50M

• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • WAVEFORMS

THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)

For schematic diagrams.

Note:

• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in Ω and 1/
specified.

f

•

• C : panel designation.

• A : B+ Line.

• B : B– Line.

• H : adjustment for repair.

•Voltages and waveforms are dc with respect to ground

• CD mechanism section (1/2), (2/2)

no mark : CD PLAY

• Main (1/3), (2/3), (3/3) and Display sections

no mark : FM

: internal component.

Note:

The components identi­fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.

under no-signal (detuned) conditions.

(): AM
<>: CD PLAY

4

W or less unless otherwise

Note:

Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.

∗ : Impossible to measure

•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc­tion tolerances.

•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc­tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

J : CD PLAY
F : FM
f : AM
L : BUS AUDIO

For printed wiring boards.

Note:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

a

•

• : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.

: Through hole.

C

Q

These are omitted

EB

E

CB

These are omitted

C

BE

These are omitted

— SERVO BOARD —

(CD PLAY)

1

IC2 4 (FEI)

Approx. 100 mVp-p

50 mV/DIV, 5 msec/DIV

2

IC2 6 (TEI)

Approx. 400 mVp-p

200 mV/DIV, 5 msec/DIV

3

IC2 wd (XI)

16.9344 MHz

0.2 V/DIV, 0.2 µsec/DIV

4

IC2 uj (RFI)

0 V

0 V

0.6 Vp-p

Approx.
1Vp-p

5

IC2 of (FNI2),

0.5 V/DIV, 0.5 µsec/DIV

6

IC2 oh (FPI2),

0.5 V/DIV, 0.5 µsec/DIV

7

IC3 ia (X1)

12 MHz

0.5 V/DIV, 0.2 µsec/DIV

og (FNI1)

1.5 Vp-p

oj (FPI1)

1.5 Vp-p

1.1 Vp-p

— MAIN BOARD —

1 IC801 i; (XOA)

0.8 Vp-p

32.768 kHz

0.2 V/DIV, 20 µsec/DIV

2 IC801 id (X1)

1.2 Vp-p

18.432 MHz

0.5 V/DIV, 0.1 µsec/DIV

CDX-F50M

0.5 V/DIV, 0.5 µsec/DIV

1616

3-5. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Refer to page 15 for Circuit Boards Location. : Uses unleaded solder.

CDX-F50M

A

B

C

D

E

F

G

1

FMA3

R21

C102

C72

C22

C80

C29

R84

C32

C65

C20

R86

R73

R13

IC6

R10

C35

Q3

Q2

C106

C64

234567891011 12 13 14

TP27

TP26

TP29

C19

TP39

R71

R122

R8

C9

C67

R70

R68

TP40

C51

C62

R69

R11

C57

R66

IC3

R65

TP53

R9

R56

R57

C41

R58

C39

R16

R101

R132

R54

R47

TP51

R40

C48

R48

R42

IC1

C38

C40

R17

R25

R50

R100

C45

R123

R12

TP30

R41

FB4

C43

TP48

TP37

TP38

C101

TP49

R43

C6

R26

FMA4

C103

C37

FB2

R120

C61

FMA6

FB3

C27

C34

R45

TP78

TP80

R51

C58

R28

TP23

R49

C60

TP44

TP93

R128

R64

X1

TP82

TP31

FMB3

TP22

TP14

R6

R7

TP18

R131

R113

(DOWN)

C7

SW1

R112

Q1

TP17

C10

R4

TP13

TP12

CN1

TP24

FMA5

(KSS1000E)

TP16

C4

R1

TP88

C5

TP92

FMB5

TP2

TP1

TP9

TP8

TP11

R5

TP20

TP89

TP90

TP91

TP10

TP6

TP7

TP97

TP99

TP21

TP15

TP68

TP36

C33

CN2

TP42

TP35

TP95

X2

TP34

TP41

TP81

TP33

C42

R46

C59

TP43

TP74

TP77

TP79

TP83

TP85

C16

C49

R125

R63

TP101

TP76

R53

R127

R117

R67

R55

TP98

TP84

TP86

IC2

R62

TP87

C23

R126

R60

TP66

TP75

TP32

C17

R61

R91

R2

C13

R82

R59

R78

R118

R83

R81

C18

R121

TP62

R116

R74

C21

R72

TP65

C52

R3

TP25

C24

C53

R119

R77

C31

R22

TP47

R52

R90

C105

R23
R24

TP3

TP4

TP5

R19

C36

TP46

C47

TP64

TP67

C28

TP63

R44

FMB4

R80

SW3

SW2

X1

CDX-F50M

H

1-864-900-

21

21

1-864-900-

A

MAIN BOARD CN751

(Page 23)

21

21

• Semiconductor
Location

Ref. No. Location

IC1 G-2
IC2 B-11
IC3 D-2
IC6 D-1

Q1 B-4
Q2 C-1
Q3 C-1

17 17

CDX-F50M

• Refer to page 16 for Waveforms.

3-6. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) — • Refer to page 27 for IC Block Diagrams.

CN1

TP12

TP13
TP14

TP15
TP16

TP17
TP18

TP20

C35C32

C29

R21

R19

C28

C24

C21

C13

C4

R1

R4

TP25

TP26

C18

TP27
R13

C22

C19
C20

TP93

C23

C17

TP29

C16

C10

TP30

R22

R24

C36

C31

R23

IC2

TP46

TP47

R44

C47

C49 C57

C52

R52

R125

R126
R127

R128

R72
R71

C102

C53

C58

R51

C51

C62

R59

R60
R61

R62
R63

R64

C48

R49

C60

C59

R113

TP101

R131

Q2 R86

Q3

C67

R84

C72

IC B/D

IC6

C80

IC B/D

R45

C101 R123

C45

R46

X2

FB4

FB3

C5

TP33

TP34

TP35

R5

C27

TP36

C33

R25

C34

C38

C41

C40

C39

R26

TP41

TP42

R40

C42

R41

CDX-F50M

R132

C7

Q1

TP21 TP22

R7

R6

C9

TP37

TP38

TP39

TP40

C61

FB2

R112

(Page 19)

1818

• Refer to page 16 for Waveform.

• Refer to page 28 for IC Block Diagram.

3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (2/2) — • Refer to page 29 for IC Pin Descriptions.

(Page 22)

CDX-F50M

(Page 18)

SW3

SW2

M903

M901

M902

SW4

SW1

TP1

TP2

TP3

TP4

TP5

TP10

TP11

TP7

TP6

TP9

TP8

R100

R101

TP74

TP75
TP76

TP77
TP78

TP79
TP80
TP81

TP82
TP83

TP84
TP85

TP86
TP87

R3

R2

R119

R116

TP62

R74

C65

TP63

C105

TP64

TP65

TP66

TP67

R81
R82

R83

R121

R77

R80

R78

R91

R90

R70

C106

R122

R73

C64

R118

CN2

IC1

C6

IC B/D

TP88

TP89
TP90

TP91
TP92

TP97

TP98
TP99

R12

R10

R8

R11

R9

R16

TP23
TP24

TP31
TP32

R17

C37

X1

R28

R120 C103

TP44

TP43

R42 R43

TP48

TP49

C43

R47

R48

TP51

R50

TP53

R53

R54

R55

R56

R57

R58

R67

R69

R65

IC3

R68

R66

R117

CDX-F50M

19 19

CDX-F50M

3-8. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 31 for IC Pin Descriptions.

PJ601

TUX601

R606

R604

R603

R608

R607

JR10

C613

C612

C614

C618

C615

C616

C619

Q601

D600

R614

R615

C620

C604

PJ401

C617

C407

C418

C433

R413

R402

C434

C408

C409

C410

C411
C412
C454

C413

C435

R403

C406
C415

R408

C436

R426

C414

C439 C443

R468

R428

R425

R430

IC401

C303

R302

D301

R435

R412
R411

R405

R404
R406
R407

R436

C416

C417

Q301

L400

C421

C420

C423

C422

C450

C451

C428

C453

C452

C424

C426

C425

R417

R441

R443

R440

R416

R415

R414

JR6

Q400

Q407

R421

R420

R419

R418

R442

Q405

Q404

Q403

Q402

Q401

C430

Q406

D400

R424

C440 R431

C444

R432

C438 R429

C437

R427

(Page 21)

CDX-F50M

C802

C801

(Page 22)

IC803

2020

C810

R866

C809

3-9. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) —

C113

C101

C107

C991C993

IC100

D921

D922

D904

D903

D902

D905

D906

D907

D908

D909

D917

CDX-F50M

D916

CNP901

(Page 20)

C446

R448 R447

C441

C447

R920

R932

R931

C994 C990

C111

TP2

C106

Q901

C109

R905

R101

R907

Q912

D901

R941

R940

C906

TP1

R902

R903

C908

R904

R901

R925

Q900

D918

C922

R939

R938

D914

C921

R913

C992

L900

D919

F900

CDX-F50M

R863

(Page 22)

21 21