Sony CDX-848-X Service manual

CDX-848X

System Compact disc digital audio system Laser diode properties Material: GaAlAs

Wavelength: 780 nm Emission Duration: Continuous Laser out-put Power: Less than

44.6 µW*

*

This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block.

Frequency response 5 – 20,000 Hz Wow and flutter Below the measurable limit Signal-to-noise ratio 102 dB Outputs Optical digital output

BUS control output (8 pins) Analog audio output (RCA pin)

Current drain 800 mA (during CD playback)

800 mA (during loading or ejecting a disc)

Operating temperature –10°C to +55°C (14°F to 131°F) Dimensions Approx. 262 × 90 × 186.5 mm

(10

3

/8 × 3 5/8 × 7

3

/8 in.) (w/h/d) not incl. projecting parts and controls

Mass Approx. 2.1 kg (4 lb. 10 oz.) Power requirement 12 V DC car battery

(negative ground)

Supplied accessories Disc magazine (1)

Parts for installation and connections (1 set)

Design and specifications are subject to change without notice.

SERVICE MANUAL

Ver 1.2 2001.06

SPECIFICATIONS

US Model

AEP Model

UK Model

Model Name Using Similar Mechanism NEW CD Drive Mechanism Type MG-251B-137 Optical Pick-up Name KSS-720A

9-870-244-13 Sony Corporation

2001F0500-1 e Vehicle Company C 2001.6 Shinagawa Tec Service Manual Production Group

COMPACT DISC CHANGER

CDX-848X

L

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICKUP 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 pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objectiv e lens.

US model:

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.

OPTICA PICK-UP BLOCK

DISC MAGAZINE GETTING OUT PROCEDURE ON THE POWER SUPPLY IS OFF

Remove the CASE (LOWER T) beforehand

1) Press the lever (ML.S) assy in the direction of arrow A.

2) Removal the magazine assy.

Note: Take out the magazine only when the tray is completely within the

magazine. If the disk or tray is sticking out, turn on the power and eject the magazine.

Lever (ML.S)

A

Magazine assy

AEP/UK model:

CAUTION

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

Notes on chip component replacement

• Never reuse a disconnected chip component.

SEMI-FIXED RESISTOR

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

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

When replacing the chassis (U.S) sub assy of mechanism deck which have the “CAUTION LABEL” attached, please be sure to put a new CA UTION LABEL (3-223-913-11) to the chassis (U.S) sub assy.

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

CDX-848X

Ver 1.1 2001.05

NOTE FOR REPLACING IC201

IC201 on MAIN board for this set has been changed in the midway of manufacturing. In a set that the former type of IC201 is mounted, SUB board is connected to MAIN board (conductor side). No service parts are supplied for the former type of IC201 and SUB board. When the former type of IC201 is replaced, remove SUB board and replace the former type of IC201 with the new type.

CHECKING QUALITY OF SUB BOARD

If the set works normally after SUB board is removed from MAIN board, SUB board has a trouble. IN this case, remove SUB board and replace IC201 now in use with the new type of IC201.

Former Type

MAIN

BOARD

IC201

SUB

BOARD

– MAIN BOARD (Component Side) –

MB90473PFV-G-108-

BNDE1

New Type

MB90473PFV-G-110-

BNDE1

GENERAL

This section is extracted from instruction manual.

Inserting a disc Insertion d’un disque

With the arrow side facing up Avec la partie fléchée tournée vers le haut

1

Labeled surface up Etiquette vers le haut

c

Tab Onglet

Use the supplied disc magazine or the disc magazine XA-250.The disc magazine XA-10B can not be used with this unit.If you use any other magazine,it may cause a malfunction.

Disc magazine Chargeur de disques

If the disc magazine does not lock properly

Take out the magazine, and after pressing the Z (EJECT) button, re-insert it.

Si vous ne pouvez pas fermer le chargeur de disques

Sortez le chargeur et, après avoir appuyé sur la touche Z (EJECT), réinsérez-le.

Notes on the disc magazine

• Do not leave the disc magazine in locations with high temperatures and high humidity such as on a car dashboard or in the rear window where the disc magazine will be subjected to direct sunlight.

• Do not place more than one disc at a time onto one tray, otherwise the changer and the discs may be damaged.

• Do not drop the disc magazine or subject it to a violent shock.

When the tray comes out

Normally, the trays will not come out of the magazine. However, if they are pulled out of the magazine, it is easy to re-insert them.

With the cut-away portion of the tray facing you, insert the right corner of the tray in the slot, then push in the left corner until it clicks.

Note

Do not insert the tray upside down or in the wrong direction.

Utilisez le magasin à disques fourni ou un magasin à disques XA-250. Vous ne pouvez pas utiliser de magasin à disques XA-10B avec cet appareil. L'utilisation d'un autre type de magasin à disques risque de provoquer un dysfonctionnement.

10 discs, one in each tray 10 disques, un par plateau

To remove Retrait

Z (EJECT)

Notes

• To listen to an 8 cm (3 in.) CD, use the separately sold Sony CD adapter CSA-8. Be sure to always use the specified adapter, as failing to do so may cause a malfunction of the unit. If you use any other adapter, the unit may not operate properly. When using the Sony CD adapter, make sure the three catches on the adapter are firmly latched onto the 8 cm CD.

• Do not insert the Sony CD adapter CSA-8 in the magazine without a disc, malfunction may result.

Remarques

• Pour écouter un disque de 8 cm (3 po.), utilisez l’adaptateur Sony CSA-8, vendu séparément, à l’exclusion de tout autre, pour éviter tout probléme de fonctionnement. Si vous utilisez un autre adaptateur, l’appareil risque de ne pas fonctionner correctement. Quand vous utilisez l’adaptateur CD Sony, vérifiez que les trois griffes soient bien en prise sur le CD de 8 cm.

• Ne pas insérer d’adaptateur CD Sony CSA8 dans le chargeur sans disque, car cela pourrait provoquer un dysfonctionnement.

43

Use the unit with the door closed completely

Otherwise, foreign matter may enter the unit and contaminate the lenses inside the changer.

Utilisez cet appareil avec la fenêtre complètement fermée

Sinon, des corps étrangers pourraient pénétrer dans l’appareil et encrasser les lentilles dans le lecteur.

Remarques sur le chargeur de disques

• Ne pas laisser le chargeur de disques dans un endroit très chaud ou très humide comme sur le tableau de bord ou sur la plage arrière de la voiture où il serait en plein soleil.

• Ne pas insérer plus d’un disque à la fois sur le plateau, sinon le changeur et les disques risquent d’être endommagés.

• Ne pas laisser tomber le chargeur de disques ni le cogner.

Lorsque le plateau sort

En principe, les plateaux ne sortent pas du chargeur. Toutefois, s’ils sortent du chargeur, il est facile de les réinsérer.

Push to unlock the door Poussez pour déverrouiller la porte

2

Slide open Coulissez pour ouvrir

Note

To prevent injury, do not insert your hand in the CD changer.

Remarque

Pour éviter toute blessure, ne pas introduire la main dans le changeur de CD.

Note

When a disc magazine is inserted into the CD changer or the reset button of the connected car audio is pressed, the unit will automatically be activated and read the information on the CDs. When the information on all the CDs in the disc magazine has been read, the unit will automatically stop operation.

Remarque

Quand un chargeur de disques est inséré dans le changeur de CD ou si la touche de réinitialisation de l’autoradio raccordé est enclenchée, l’appareil se met automatiquement en marche et reproduit les CD. Lorsque tous les CD du chargeur ont été reproduits, l’appareil s’arrête automatiqement.

Avec la portion découpée du plateau vous faisant face, insérer le coin droit du plateau dans la fente, puis enfoncer le coin gauche jusqu’au déclic.

Remarque

Ne pas insérer le plateau à l’envers ou dans le mauvais sens.

x

Notes on handling discs

A dirty or defective disc may cause sound drop-outs during playback. To enjoy optimum sound, handle the disc as follows.

• Handle the disc by its edge, and to keep the disc clean, do not touch the unlabeled surface. (fig.

• Do not stick paper or tape on the disc. (fig.

• Keep your discs in their cases or disc magazines when not in use.

Do not expose discs to direct sunlight or heat sources such as hot air-ducts. Do not leave discs in a car parked in direct sunlight where there can be a considerable rise in the temperature inside the car. (fig.

• Before playing, clean the discs with an optional cleaning cloth. Wipe each disc in the direction of the arrows. (fig.

D

)

Do not use solvents such as benzine, thinner, commercially available cleaners or antistatic spray intended for analog discs.

• Discs with special shapes (heart-shaped discs, octagonal discs etc.) cannot be played on this unit. Attempting to do

so may damage the unit. Do not use such discs.

Notes on discs

If you use the discs explained below, the sticky residue can cause the disc to stop spinning and may cause malfunction or ruin your discs. Do not use second-hand or rental CDs that have a sticky residue on the surface (for example from peeled-off stickers or from ink, or glue leaking from under the stickers).

• There are paste residue. Ink is sticky. (fig.

Do not use rental CDs with old labels that are beginning to peel off.

• Stickers that are beginning to peel away, leaving a sticky residue. (fig.

Do not use your discs with labels or stickers attached.

• Labels are attached. (fig.

Notes on CD-R discs

• You can play CD-Rs (recordable CDs) designed for audio use on this unit (fig. H).

• Some CD-Rs (depending on the equipment used for its recording or the condition of the disc) may not play on this

unit.

• You cannot play a CD-R that is not finalized*.

* A process necessary for a recorded CD-R disc to be played on the audio CD player.

G

)

B

)

E

)

F

)

A

)

C

)

Remarques sur la manipulation des disques

Un disque sale ou défectueux peut provoquer des pertes de son à la lecture. Manipuler le disque comme suit pour obtenir un son optimal.

• Manipuler le disque par son arête et le maintenir dans un état propre, ne pas le toucher sur la surface non imprimée. (fig.

• Ne pas coller de papier ou de bande adhésive sur le disque. (fig.

• Conservez vos disques dans leurs boîtiers ou des pochettes de rangement lorsqu’ils ne sont pas utilisés.

Ne pas laisser les disques en plein soleil ou près d’une source de chaleur comme des conduits d’air chaud. Ne pas

laisser les disques dans une voiture garée en plein soleil car la température de l’habitacle risque d’augmenter considérablement. (fig.

• Avant la lecture, essuyer les disques avec un chiffon de nettoyage en option. Essuyer chaque disque dans le sens des flèches. (fig.

Ne pas utiliser de solvants tels que de la benzine, du diluant, des produits de nettoyage vendus dans le commerce ou de vaporisateurs anti-statiques destinés aux disques analogiques.

• Il n’est pas possible d’utiliser les disques de formes spéciales (en forme de cœur ou octogonaux, etc.) avec cet

appareil. Vous risquez d’endommager l’appareil. N’essayez jamais de lire ces disques.

Remarques sur les disques

Si vous utilisez les disques décrits ci-dessous, le résidu adhésif risque de provoquer l’arrêt de la rotation du disque et d’entraîner un dysfonctionnement ou d’endommager vos disques. N’utilisez pas de CD de seconde main ou de location qui présentent des résidus adhésifs à la surface (par exemple d’étiquettes décollées ou d’encre, de colle dépassant de l’étiquette).

• Résidus de colle. L’encre colle. (fig. N’utilisez pas de CD de location avec d’anciennes étiquettes qui commencent à se décoller.

• Les étiquettes qui commencent à se décoller laissent des résidus adhésifs. (fig. N’utilisez pas vos disques avec des étiquettes ou des autocollants apposés dessus.

• Les étiquettes sont fixées. (fig.

Remarques sur les disques CD-R

• Vous pouvez écouter avec cet appareil des CD-R (CD enregistrables) conçus pour une utilisation audio. (fig. H)

• Certains CD-R (en fonction des conditions de l’équipement d’enregistrement ou du disque) risquent de ne pas être

lus avec cet appareil.

• Vous ne pouvez pas lire de disques CD-R non finalisés*.

* Un processus nécessaire à la lecture des disques CD-R enregistrés sur le lecteur de CD audio.

A GBCDEF

This way Oui

Not this way Non

This way Oui

A

)

C

)

D

)

E

)

G

)

Look for this mark to distinguish CD-Rs for audio use.

H

Ce symbole permet de distinguer les CD-R conçus pour une utilisation audio.

This mark denotes that a disc is not for audio use. Ce symbole indique qu’un disque n’est pas conçu pour une utilisation audio.

B

)

F

)

4

CDX-848X

InstallationInstallation

Precautions

• Choose the mounting location carefully, observing the following: — The unit is not subject to temperatures exceeding 55°C (131°F) (such as in a car parked in direct

sunlight). — The unit is not subject to direct sunlight. — The unit is not near heat sources (such as heaters). — The unit is not exposed to rain or moisture. — The unit is not exposed to excessive dust or dirt. — The unit is not subject to excessive vibration. — The fuel tank should not be damaged by the tapping screws. — There should be no wire harnesses or pipes under the place where you are going to install the unit. — The spare tire, tools or other equipment in or under the trunk should not be interfered with or damaged

by the screws or the unit itself.

• Be sure to use only the supplied mounting hardware for a safe and secure installation.

• Use only the supplied screws.

• Make holes of ø 3.5 mm (

surface.

5

/32 in.) only after making sure there is nothing on the other side of the mounting

How to install the unit

The brackets 1 provide two positions for mounting, high and low. Use the appropriate screw holes according to your preference.

Horizontal installation

1

HORIZONTAL

Align with the marked position. Aligner sur le repère.

Précautions

• Choisir l’emplacement de montage en tenant compte des observations suivantes: — Appareil non soumis à des températures dépassant 55°C (131°F) (comme dans une voiture parquée au

soleil). — Appareil non soumis au rayonnement solaire direct. — Appareil à l’écart de sources de chaleur (comme des radiateurs). — Appareil non exposé à la pluie ou à l’humidité. — Appareil non exposé à des poussières ou à des souillures en excès. — Appareil non exposé à des vibrations excessives. — Vérifier que le réservoir d’essence ne risque pas d’être endommagé par les vis taraudeuses. — Il ne doit pas y avoir de faisceau de fils ou de tuyaux à l’emplacement du montage. — Vérifier que l’appareil ou les vis ne risquent pas d’endommager ou de gêner la roue de secours, les

outils, ou autre objet dans le coffre.

• Pour garantir la sécurité de l’installation, utiliser uniquement le matériel de montage fourni.

• Utilisez uniquement les vis fournies.

• Ne percez les trous de 3,5 mm (

surface de montage.

5

/32 po.)ø qu'après vous être assuré qu'il n'y avait rien de l'autre côté de la

Installation de l’appareil

Les supports 1 offrent deux positions de montage, haut et bas. Utilisez les trous de vissage appropriés en fonction de vos préférences.

Installation horizontale

2

Unit: mm (in.) Unité: mm (po.)

3

2

1

5

/32)

ø 3.5 (

3

2

1

Vertical installation Installation verticale

1

VERTICAL

Align with the marked position. Aligner sur le repère.

Suspended installation

When the unit is to be installed under the rear tray etc. in the trunk compartment, make sure the following provisions are made.

• Choose the mounting location carefully so that the unit can be installed horizontally.

• Make sure the unit does not hinder the movement of the torsion bar spring etc. of the trunk lid.

1

ø 3.5 (5/32)

HORIZONTAL

Align with the marked position. Aligner sur le repère.

Unit: mm (in.)

2

Unité: mm (po.)

Installation suspendue

Si l’appareil doit être installé sous la plage arrière dans le coffre, par exemple, observer les précautions suivantes.

• Bien choisir l’emplacement pour pouvoir installer l’appareil à l’horizontale.

• Vérifier que l’appareil ne gêne pas les mouvements du ressort de fermeture du coffre, entre autres.

2

Unit: mm (in.) Unité: mm (po.)

Inclined installation

After installing the unit, align the dials with one of the marks so that the arrows are as vertical as possible.

2

1

Installation inclinée

Après avoir installé l’appareil, alignez les disques sur un repère de façon à ce que les flèches soient dans la position la plus verticale possible.

3

2

1

ø 3.5 (5/32)

3

2

1

V E

R T

I CA

L

A T N O Z

I R O H

Note

Be sure to align the left and right dials with the same mark.

L

A T N

O Z

I R O

V

H

E R T I C A

L

Remarque

Veillez á aligner les disques gauche et droite sur le même repère.

L

A T N

O

Z I R

O

V

H

E R T

I C A L

5

CDX-848X

Connections Conne xions

For details, refer to the Installation/Connections manual of each product. Pour plus de détails, consulter le manuel d’installat ion/connexions de chaque produit.

Schéma de connexionConnection diagram

to a car audio compatible with the Sony BUS optical digital transmission Sony BUS compatible car audio Autoradio compatible BUS Sony

system

vers le système audio de la voiture compatible avec le système de

transmission optique numérique BUS Sony

BUS AUDIO IN

Note

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

Remarque

Pour raccorder deux ou plusieurs changeurs, le sélecteur de source XA-C30 (en option) est nécessaire.

4

5

Connecting the optional optical cable

1

After changing the position of the switch, be sure to press the reset button on the main unit.

Notes

•

This switch is factory-set to the ANALOG position.

•

Improper setting of the switch may prevent any sound from being reproduced even when the CD changer is

activated.

2

Set the DIGITAL/ANALOG switch on the side of the CD changer to DIGITAL. Mettre le commutateur DIGITAL/ANALOG sur le côté du changeur de CD sur

DIGITAL.

Do not touch the coupler parts. Ne pas toucher les pièces du coupleur.

BUS CONTROL IN

DIGITAL

ANALOG

DIGITAL INBUS CONTROL IN

CDX-848X

Optical cable (optional RC-98, etc.) Câble optique (RC-98 en option, etc.)

Connexion du câble optique en option

Après avoir modifié la position du commutateur, veiller à appuyer sur la touche de réinitialisation de l’appareil principal.

Remarques

•

Ce sélecteur est préréglé en usine sur la position ANALOG (analogique).

•

Un réglage incorrect du sélecteur peut empécher la reproduction du son méme quand le changeur de CD fonctionne.

Optical cable (optional RC-98, etc.) Câble optique (RC-98 en option, etc.)

Remove the protective cap, and firmly plug in the connector.

3

Notes

•

When you wish to disconnect the cable, simply push in on both sides of the connector.

•

Be sure to keep the protective cap in a safe place for future use.

Notes on the optical cable

Observe the following when connecting the cable: — Do not bend the cable too much. If the bent part (arc) is less than 10 cm (4 in.) in diameter, sound may not be

reproduced.

— Make sure the cable does not get compressed or constricted in any way by objects around it. — Never let the coupler parts of the connectors get scratched or become contaminated with dirt. — If this unit is not connected to a car audio compatible with the Sony BUS optical digital transmission system,

reinstall the protective cap to its original position.

— Use an optical cable designed for Sony car audio systems. — Not all optical cables can be used with this CD changer.

Retirez le bouchon de protection et enfichez correctement le connecteur.

Protective cap Cache de protection

6

Protective tubes (to be removed) Tubes de protection (à enlever)

Remarques

•

Pour débrancher le câble, appuyer simplement sur les deux côtés du connecteur.

•

Garder le capuchon de protection dans un endroit sûr pour une utilisation ultérieure.

Remarques sur le câble optique

Lors de la connexion du câble: — Ne pas forcer le câble en le pliant. Si la partie courbée (coude) fait moins de 10 cm (4 po.) de diamètre, il est

possible que le son ne soit pas reproduit.

— Vérifier que le câble n’est pas coincé ou écrasé par des objets environnants. — Protéger les pièces du coupleur des égratignures eet de la saleté. — Si cet appareil n’est pas raccordé à un autoradio compatible avec le système de transmission numérique optique

BUS Sony digital, réinstaller le capuchon de protection dans sa position d’origine. — Utilisez un câble optique conçu pour les systèmes audio pour voiture Sony. — Tous les câbles optiques ne peuvent pas être utilisés avec ce changeur de CD.

SECTION 2

DISASSEMBLY

• This set can be disassembled in the order shown below.

2-1. DISASSEMBLY FLOW

Note 1: The process described in can be performed in any order. Note 2: Without completing the process described in , the next process can not be performed.

SET

2-2. CASE (UPPER T), FRONT PANEL ASSY

(Page 8)

2-3. MECHANISM DECK (MG-251B-137)

(Page 8)

CDX-848X

2-4. JACK BOARD,

DIGITAL OUT BOARD (Page 9)

2-5. MAIN BOARD,

SLIDE VARIABLE RESISTOR (ELEVATOR HEIGHT SENSOR) (RV202) (Page 9)

2-6. ELJ MOTOR ASSY (ELEVATOR) (M104)

(Page 10)

2-9. CHASSIS ASSY

(Page 11)

2-10. RF BOARD

(Page 12)

2-11. SLED MOTOR ASSY (251) (M101)

OPTICAL PICK-UP (KSS-720A) (Page 12)

2-12. LSW BOARD,

SPINDLE MOTOR (S) SUB ASSY (M102) (Page 13)

2-13. ELJ MOTOR ASSY (CHUCKING) (M103)

(Page 13)

2-7. ESCUTCHEON (T)

(Page 10)

2-8. CHASSIS (U.S) SUB ASSY

(Page 11)

,

7

CDX-848X

)

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

2-2. CASE (UPPER T), FRONT PANEL ASSY

3

screw

1

screw (PTT2.6

×

6)

4

lever (FLT)

(PTT2.6

×

6)

3

screw (PTT2.6 × 6)

5

case (upper T)

4

lever (FLT)

3

screw (PTT2.6 × 6

2

front panel assy

2-3. MECHANISM DECK (MG-251B-137)

2

tension coil spring (FL)

1

two dampers (T)

filament tape

1

screw (PTT2.6 × 6)

4

mechanism deck (MG-251B-137)

2

tension coil spring (FL

3

jack flexible board (CNJ901)

1

two dampers (T

8

2-4. JACK BOARD, DIGITAL OUT BOARD

d

2

Remove two solders of the elevator motor leads (M104).

2

Remove two solders of the switch board leads.

2

Remove three solders of the slide variable resistor (RV202).

4

heat sink (T)

3

screw (PTT2 × 4)

6

main board

5

two screws (FP)

1

main flexible board (CNJ101)

5

screw (FP)

7

screw (PTT2

×

4)

8

slide variable resistor (elevator height sensor) (RV202)

Remove the jack board in the direction of the arrow.

1

ground point screw (PTT2.6

×

6)

2

connector (CN902)

5

connector (CN701)

CDX-848X

3

jack board

6

digital out boar

4

screw (BVTT2

×

6)

2-5. MAIN BOARD, SLIDE VARIABLE RESISTOR (ELEVATOR HEIGHT SENSOR) (RV202)

9

CDX-848X

)

2-6. ELJ MOTOR ASSY (ELEVATOR) (M104)

1

2

bracket (EVM.S)

screw (PTT2

×

4)

4

ELJ motor assy (elevator) (M104)

3

spacer (MO

2-7. ESCUTCHEON (T)

2

Remove the claw in the direction of arrow

4

Remove the ditch in the direction of arrow

5

Remove the escutcheon (T) in the direction of arrow

A

B

two claws

3

.

C

.

3

claw

B

A

4

C

ditch

1

screw (T)

10

2-8. CHASSIS (U.S) SUB ASSY

1

three screws (PTT2 × 4)

5

chassis (U.S) sub assy

3

A

2

Remove the edge in the direction of arrow A.

CDX-848X

1

two screws (PTT2 × 4)

2-9. CHASSIS ASSY

5

1

screw (PTT2 × 4)

spring (stopper.lower)

4

spring (SUT)

6

chassis assy

4

1

Turn the gear (EVD.S) fully in the direction of arrow A.

3

2

A

3

11

CDX-848X

2-10. RF BOARD

3

two screws (PTT2

×

4)

4

RF board

3

two screws

×

4)

(PS2

2

Remove four solders of the LSW board leads and spindle motor leads (M102).

2

Remove two solders of the sled motor leads (M101).

1

OP flexible board (CN102).

2-11. SLED MOTOR ASSY (251) (M101), OPTICAL PICK-UP (KSS-720A)

1

two precision screws

4

Turn shaft (feed) assy in the direction of the arrow, then remove it.

(P2 × 3)

2

sled motor assy (251) (M101)

OP flexible board

adhesive sheet

12

3

optical pick-up (KSS-720A)

optical pick-up

Note: After connecting OP flexible board,

fix it with adhesive sheet to optical pick-up.

2-12. LSW BOARD, SPINDLE MOTOR (S) SUB ASSY (M102)

)

w

8

two precision screws (P1.7

×

2.2)

7

1

precision screw (P2

×

2.5)

5

bracket (CP)

CDX-848X

spring (chucking)

3

6

retainer (disc

4

precision scre (P2 × 2.2)

2

LSW board

2-13. ELJ MOTOR ASSY (CHUCKING) (M103)

2

two screws (PTT2 × 4)

3

retainer (CHM)

9

Remove the spindle motor (S) sub assy (M102) in the direction of the arrow.

1

Remove two solders of the chucking motor leads (M103).

4

ELJ motor assy (chucking) (M103)

13

CDX-848X

)

MECHANISM DECK ASSEMBLY

• This set can be disassembled in the order shown below.

3-1. ASSEMBLY FLOW

SECTION 3

3-2. OPTICAL PICK-UP

COMPLETE ASSY (Page 14)

3-3. GEAR (LOMINI)/

(LOAD CAM) ASSY (Page 15)

3-4. OPERATION CHECK

(Page 15)

3-2. OPTICAL PICK-UP COMPLETE ASSY

1

Move the lever (LOCK 3A) in the direction of arrow A, and return it a little in the direction of arrow

chuck plate

from the position where the chuck plate is moved down to the lower limit.

B

A

B

stop ring 2.0 (E type

3

4

tension spring (DH)

14

shaft (A)

2

optical pick-up complete assy Note: Insert the shaft (A) first.

3-3. GEAR (LOMINI)/(LOAD CAM) ASSY

CDX-848X

gear (LOAD 2)

marking Fig. A

3

Attach the gear (LOAD CAM) assy with its facing inside.

gear (LOMINI)

slit

chuck plate

2

Attach the gear (LOMINI) at the position shown in Fig. A.

shaft (rotary prevention C)

1

B

stop ring 1.5 (E type)

4

Move the lever (LOCK 3A) fully in the direction of arrow to move the chuck plate up.

B

3-4. OPERATION CHECK

1

Confirm that the slider moves in the direction of arrow C to move down the chuck plate if the gear (LOAD CAM) is rotated in the direction of arrow

A

or the chuck plate moves up and the slider moves in the direction of

arrow D if the gear is rotated in the direction of arrow B.

chuck plate

slider

D

C

A

gear (LOAD CAM) assy

B

15

CDX-848X

MECHANICAL ADJUSTMENT

• Elevator Height (Address) Adjustment

SECTION 4

Note: This adjustments is necessary when the system controller (IC201),

variable resistor (RV201), slider (R), slider (L), or chassis (ELV) was replaced for any repair.

Connection:

power supply

(DC 14.4 V)

master unit

+

GND

BUS cable

compact disc changer

CONTROL connector (CN901)

Adjustment Method:

1. Connect this set to the master unit (e.g. MDX-C7970/C7970R), load a disc magazine, and place the set vertically as shown below.

2. Connect the regulated power supply to the master unit, and turn the power on.

3. Press the DISC button on the master unit and select DISC 5.

4. At this time, if the elevator shaft does not position between comb teeth A and B at addresses 5 and 6 as shown below, adjust the following.

5. Press repeatedly the DISC + and – buttons on the master unit so that the elevator shafts moves from address 6 to address 5, or from 5 to 6. At this time, adjust RV201 on the main board so that the elevator shaft positions smoothly between comb teeth A and B.

6. Further, place the set horizontally and make same adjustment as mentioned above.

7. After adjustment at addresses 5 to 6 is finished, check all operations from addresses 1 to 10 with the set placed vertically and horizontally respectively to confirm that the ele vator shaft positions in a range between comb teeth A to B.

comb tooth at address 6

comb tooth at address 5

comb tooth at address 6

elevator shaft

A B

OK NG

A

elevator shaft

B

comb tooth at address 5

16

RV201

SECTION 5

ELECTRICAL CHECK

CDX-848X

Note:

1. This check is performed with the set placed horizontally.

2. Power supply voltage: DC14.4 V (more than 3 A).

3. Be sure to use the disc “YEDS-18” parts code: 3-702-101-01, but only when indicated.

Connection:

power supply

(DC 14.4 V)

master unit

+

GND

BUS cable

Focus Bias Check

Connection:

– RF Board (Component Side) –

oscilloscope

(AC range)

+ –

TP (RFAC)

TP (VC)

IC101

compact disc changer

CONTROL connector (CN901)

Procedure:

1. Connect the oscilloscope to TP (RFAC) and TP (VC) on the RF board.

2. Put the set into play mode by loading the disc (YEDS-18).

3. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not.

Note:

Clear RF signal waveform means that the shape “◊” can be clearly distinguished at the center of the waveform.

RF signal waveform

VOLT/DIV: 200 mV TIME/DIV: 500 ns (10 : 1 probe in use)

level: 1.4 ± 0.3 Vp-p

When observing the eye pattern, set the oscilloscope to AC range and raise the vertical sensitivity so that it may be easily seen.

17

CDX-848X

Tracking Offset Check

Connection:

– RF Board (Component Side) –

oscilloscope

(DC range)

+

–

TP (VC)

IC101

TP (TE)

Procedure:

1. Connect the oscilloscope to TP (TE) and TP (VC) on the RF board.

2. Put the set into play mode by loading the disc (YEDS-18).

. >

3. Press the

[ AMS ] button on the master unit, and check

the traverse waveform*.

4. Confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0 V dc, and check this level.

* Traverse waveform: This is the tracking error wave form appears

when crossing the track.

Traverse waveform

A

0 V

B

VOLT/DIV: 500 mV TIME/DIV: 2 ms Center: 0 V

18

A=B

traverse waveform (100 track jump waveform)

6-1. BLOCK DIAGRAM – SERVO Section –

CDX-848X

SECTION 6

DIAGRAMS

DETECTOR

A

B

C

D

E

F

LASER DIODE

OPTICAL

PICK-UP BLOCK

(KSS-720A)

(TRACKING)

(FOCUS)

I-V AMP

PD LD

2-AXIS DEVICE

A

6

B

7

C

8

D

9

E

10

F

11

AUTOMATIC

CONTROL

M101

(SLED)

M102

(SPINDLE)

M103

(CHUHCKING)

RF AMP,

FOCUS/TRACKING ERROR AMP

POWER

Q101

IC101

RFAC

SUMMING

AMP

RFDC

SUMMING

AMP

FOCUS ERROR

AMP

TRACKING

ERROR

AMP

LD

1

TRACKING/FOCUS COIL DRIVE,

SLED/SPINDLE/CHUCKING

VO3 +

8

VO3 –

9

VO4 +

6

VO4 –

7

VO2 +

10

MM

VO2 –

11

VO1 +

12

VO1 –

13

VL0 +

5

VL0 –

4

SUM

RW/ROM

APC AMP

MOTOR DRIVE

AC

RW/ROM

IC201

MOTOR

COIL

DRIVE

COIL

DRIVE

MOTOR

DRIVE

MOTOR

DRIVE

MOTOR

DRIVE

4 3

DC OFST

SW

PD

VIN3 + VIN3 –

VIN4 + VIN4 –

VIN2 + VIN2 –

VIN1-B

FWD

RFDCO

12

2

REV

EQ IN

FE

TE

25 24

31 32

22 21

18

1 2

RFAC

VCA

RF

28

30

FE

16

TE

18

RF EQ

AMP

RF AMP OFFSET

CONTROL SWITCH

Q102

TFDR

48

TRDR

49

FFDR

50

FRDR

51

SFDR

46

SRDR

47

MDP

43

RFAC

15

D-RAM

IC102

RF

RFDC

ANALOG SW

A/D CONVERTER

SERVO DSP

PWM GENERATOR

DIGITAL

CLV

71

73 74

DQ1 – DQ4

A0 – A10

RAS CAS

WE

OE

FE

TE

FE

TE

OP AMP

RFAC

ASYMMETRY CORRECTOR

ASYI ASYO

2, 3,

24, 25

21, 8

9 – 12, 15 – 19,

5

23

4

22

61606258

SE

MIRR DECT

FOK

FILTER

66 69 68 67

FILI

PCO

FILO

CLTV

DIGITAL

PLL

D0 – D3

118, 117

116, 115,

A0 – A10

3 – 1, 111

109 – 106, 7 – 5,

XRAS

113

XCAS

119

XWE

114

XOE

120

ON : When completion of the disc

ON : When completion of the disc chucking operation

chucking operation

ON : When completion of the disc

ON : When completion of the disc save operation

save operation

VIBRATION

MEMORY

CONTROLLER

&

COMPRESSION

EXPANDER

XRDE XWRE XQOK

ON : When the optical pick-up

ON : When the optical pick-up is inner position

is inner position

DIGITAL SIGNAL PROCESSOR,

DIGITAL SERVO PROCESSOR,

D-RAM CONTROLLER

IC101

EFM

DEMODULATOR

INTERNAL BUS

SUBCODE

PROCESSOR

SW3

(LIMIT)

SW1

(CHUCKING END DETECT)

SW2

(SAVE END DETECT)

D/A

INTERFACE

32k RAM

ERROR

CORRECTOR

CPU

INTERFACE

SERVO AUTO SEQUENSOR

SERVO

INTERFACE

SSTP

45

WDCK

GFS

DATA CLOK XLAT

SENS

SQSO SQCK SCOR

XRDE

XWRE

XQOK

SCLK

FOK

XRST

1578

1581

1523 1525 1524

1526

1514 1515 1517

159 158 1512

27

35

21

DIGITAL

OUT

SELECTOR

CLOCK

GENERATOR

DOUT

PCMD

BCK

LRCK

XTAI

XTAO

1585

15

88

1588 15

90 15

86

1593

1594

DATA

2

BCK

3

LRCK

1

CD-ROM/RW

SELECT SWITCH

Q202

SERIAL

INPUT

INTERFACE

MODE

CONTROL

DM1

8 TIME OVER

SAMPLING

DIGITAL FILTER

WITH

FUNCTION

CONTROLLER

RST

2227

66

99

53

42

61 59 60

44

56 58 52

64 65 63

43

41

62

5 6

98

97

96

MULTI LEVEL

∆ ∑

MODULATOR

BPZ

CONTROL

DIGITAL FILTER, D/A CONVERTER

IC501

EMPH

RW SEL

GRSCOR

GFS

CDDAT CDCLK CDLAT

SENS

SQSO SQCK SCOR

XRDE XWRE XQOK

SYSTEM CONTROLLER

SCLK

FOK

XRST

LOADF LOADR

LIM SW

LOAD SW

SAVE SW

DOUTSEL

IC201 (1/2)

D/A

CONVERTER

CLKO

67MUTEMUTE

90

LOW-PASS

FILTER

CRYSTAL

OSCILLATOR

XTI

XTO

3 64

X501

16.9344MHz

SW701

ANALOG

DIGITAL

VOUTL

1516

VOUTR

1513

SCK

MUTING CONTROL

SWITCH

Q402

• SIGNAL PATH

: CD PLAY (ANALOG OUT)

: CD PLAY (DIGITAL OUT)

LOW-PASS

FILTER

IC401

MUTING

Q410, 420

OPTICAL

TRANSEIVER

IC701

LINE AMP

IC402

IC701

DIGITAL OUT

L

R

CN901 (1/2)

ANALOG OUT

1919

CDX-848X

6-2. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –

SYSTEM CONTROLLER

ON : When magazine is set

SW201

MAGAZINE

DETECT

51

MAGLK SW

IC201 (2/2)

MCK

37

RV201

ELEVATOR HEIGHT

(ADDRESS)

M104

(ELEVATOR)

ELEVATOR

MOTOR DRIVE

IC301

OUT1

9

M

OUT2

7

MOTOR

DRIVE

IN1 IN2

EEPROM

IC203

SDA

SCL

ELVF

3 4

5 6

4 3

ELVR

EEDAT

32 28

EECLK

EHS

AVRH

ELVON

BUCHK

EJECT SW

CDON

RESET

36

34

24

46

50

23

75

RV202

ELEVATOR HEIGHT

SENSOR

BATTERY

CHECK

Q301

SW801

Z

RESET SIGNAL

GENERATOR

IC303

D306

SERVO +3.3V

BUS INTERFACE

(FOR SONY BUS)

IC302

B. UP +3.3V

DRIVER +8V

D307

+3.3V

REGULATOR

IC306

DAC/SERVO +5V

14

VCC

+8V

REGULATOR

IC304

+5V

REGULATOR

IC305

+3.3V

REGULATOR

Q303, 304

PS901

CN901 (2/2)

CONTROL

7

B. UP

X180X0

81

X201 4MHz

UNI SI

UNI SO

UNI CK

BUSON

SO

16

17

18

45

10 6

SI

9

SCK

11 4

BUSON OUT

1 12

BUSON OUT

13 2

RESET

8 7

RESET

SWITCH

DATA

CLK

LOF

BUSON IN

RST

5

DATA

4

CLK

6

BUSON

2

RST

2020

CDX-848X

d

6-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Note on Printed Wiring Board:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

f

•

• : 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 (Conductor Side) the pattern face are indicated. Parts face side: Parts on the par ts face side seen from (Component Side) the parts face are indicated.

: internal component.

Note on Schematic Diagram:

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

• All resistors are in Ω and 1/ specified.

f

•

• C : panel designation.

Note: The components identified by mark 0 or dotted line

• A : B+ Line.

• H : adjustment for repair.

• Po wer voltage is dc 14.4V and fed with regulated dc pow er

• Voltages and waveforms are dc with respect to ground

• V oltages are taken with a VOM (Input impedance 10 MΩ).

• Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

: internal component.

with mark 0 are critical for safety. Replace only with part number specified.

supply from CD changer controller. under no-signal conditions.

no mark : CD PLAY

Voltage variations may be noted due to normal production tolerances.

J : CD PLAY (ANALOG OUT) c : CD PLAY (DIGITAL OUT)

: Impossible to measure

∗

4

W or less unless otherwise

• Circuit Boards Location

JACK board

MAIN board

DIGITAL OUT board

SWITCH board

RF boar

LSW board

2121

CDX-848X

6-4. PRINTED WIRING BOARDS – RF/LSW Boards – • See page 21 for Circuit Boards Location.

• Semiconductor Location

Ref. No. Location

IC101 H-6 IC201 J-5

Q101 F-7 Q102 H-7

1

2 3 4 5 6 7 8 9 10 11 12 13

A

SW2

B

SW1

CHUKING

END DETECT

SAVE END

DETECT

C

TP106

TP105

TP103

TP104

WHT

YEL

RED

BLK

D

M101

M

(SLED)

E

M103

M

(CHUKING)

F

G

OPTICAL PICK-UP

BLOCK

(KSS-720A)

OP FLEXIBLE

BOARD

CN102

R103

H

C107

TP

(VC)

(RFAC)

R223

R222

R104

R220

R218

R219

C202

IC201

C106

R106

C209

R215

SW3

MAIN FLEXIBLE

1-679-422-

BOARD

11

(11)

CNJ101

R214

R212

R210

R208

R206

R204

R201

R213

R211

R209

R207

R205

R203

R202

C208

C207

C206

C205

C204

C203

C217

I

A

MAIN BOARD

(Page 24)

J

LSW BOARD

BLU

K

(LIMIT)

YEL

R102

IC101

TP

(TE)

R107

C109

R108

R216

R109

C103

C111

R110

Q101

C101

R117

C102

R119

R105

R122

R113

TP107

TP108

TP102

TP101

R101

Q102

R121

C108

R120

R112

1-679-421-

C104

C122

YEL

BLU

BLK

RED

(11)

C121

M102

M

(SPINDLE)

11

C105

C201

1-679-421-

11

(11)

2222

6-5. SCHEMATIC DIAGRAM – RF/LSW Boards – • See page 30 for for Waveforms. • See page 30 for IC Block Diagrams.

CDX-848X

(Page 26)

The components identified by mark 0 or dotted line with mark 0 are critical for safety.

2323

Replace only with part number specified.

CDX-848X

Ver 1.1 2001.05

• Semiconductor Location

Ref. No. Location

D302 D-3 D303 E-3 D306 F-6 D307 F-5 D310 G-4 D313 E-3 D314 D-3

IC101 C-9 IC102 D-7 IC201 F-9 IC203 H-10 IC301 H-4 IC302 D-3 IC303 G-3 IC306 A-9 IC401 D-6 IC402 D-5 IC501 B-7

Q202 G-11 Q301 F-6 Q303 F-4 Q304 G-4 Q402 E-4 Q410 D-4 Q420 E-4

6-6. PRINTED WIRING BOARDS – MAIN Board (Component Side) – • See page 21 for Circuit Boards Location.

1

2 3 4 5 6 7 8 9 10 11 12

A

C307

R303

C162

C501

C502

IC501

C506

C504

FB101

R501

C112

C113

C161

IC102

C203

R205

R206

R208

B

R401

D307

R408

R407

Q301

C406

R406

C404

D306

C403

R405

C405

R403

IC401

R402

R404

R302

C

C304

C317

D314

D302

C305

D

C318

IC302

C306

D313

R301

D303

Q410

Q420

R416

R415

C412

C411

IC402

R414

R413

E

CN301

F

G

C309

IC303

D310

C308

R305

R311

R306

R310

C312

Q402

Q303

Q304

R411

R409

C408

R410

R412

R304

IC301

C302

H

C314

C301

C303

SW201

MAGAZINE

DETECT

R204

C110

C109

C111

R106

R207

C205

R107

R105

IC101

C106

C104

C108

C107

C114

IC201

IC306

R103

C115

C105

R102

R104

C202

R109

R122

C122

R108

R123

C123

R125

C121

R101

C103

C102

C101

R201

C201

R202

C204

R222

R211

R210

R203

R250

C206

R221

Q202

R209

A

RF BOARD

CNJ101

(Page 22)

MAIN FLEXIBLE BOARD

IC203

JACK FLEXIBLE BOARD

Y

B

I

JACK BOARD

CNJ901

SUB BOARD

(Page 25) (Page 25)

X

SUB BOARD

(Page 29)

J

K

11

1-679-417-

(11)

2424

6-7. PRINTED WIRING BOARDS – MAIN (Conductor Side)/SWITCH Boards – • See page 21 for Circuit Boards Location.

1

2 3 4 5 6 7 8 9 10 11

A

BP201

X501

X201

C505

BP302

(CHASSIS)

C503

C508

BP301

BLK

RED

C407

C410

C409

C311

YEL

BLU

C509

M

M104

(EVEVATOR)

B

(CHASSIS)

C319

C

D

RV201

E

F

G

H

(CHASSIS)

I

BP121

BP122

CDX-848X

Ver 1.1 2001.05

• Semiconductor Location

Ref. No. Location

IC304 H-11 IC305 F-11

C316

IC305

C313

C310

C315

IC304

1-679-417-

11

(11)

J

SWITCH BOARD

YEL

BLU

RV202

EVEVATOR

HEIGHT

K

SENSOR

SW801

Z

SUB BOARD

TP6

TP5

TP4

TP3

TP2

TP1

X

(COMPONENT SIDE)

Y

(Page 24)

MAIN BOARD

(Page 24)

(NOT SUPPLIED: See page 3)

(CHASSIS)

2525

CDX-848X

6-8. SCHEMATIC DIAGRAM – MAIN Board (1/3) – • See page 30 for Waveforms. • See page 30 for IC Block Diagrams.

(Page 23)

(Page 27)

(Page 28)

2626

6-9. SCHEMATIC DIAGRAM – MAIN Board (2/3) – • See page 30 for Waveform. • See page 30 for IC Block Diagram.

(Page 26)

SUB

BOARD

TP6

(Page 26)

CDX-848X

Ver 1.1 2001.05

(Page 28)

2727

CDX-848X

Ver 1.1 2001.05

6-10. SCHEMATIC DIAGRAM – MAIN (3/3)/SWITCH Boards – • See page 30 for Waveforms. • See page 30 for IC Block Diagrams.

(Page

26)

(Page

27)

(Page 29)

(Page 27)

SUB BOARD

(NOT SUPPLIED: See page 3)

2828

6-11. PRINTED WIRING BOARDS – JACK/DIGITAL OUT Boards –

• See page 21 for Circuit Boards Location.

C902

C901

PS901

D901

D902

C904

CN902

CNJ901

6-12. SCHEMATIC DIAGRAM – JACK/DIGITAL OUT Boards –

CDX-848X

1-679-418-

FB902

FB903

FB901

(11)

JACK FLEXIBLE

BOARD

B

MAIN BOARD

CN301

(Page 24)

(Page 28)

CN701

C701

R701

11

1-679-420-

(11)

ANALOG OUT

CONTROL

(FOR SONY BUS)

5 4

6

7

8

2 13

IC701

DIGITAL

OUT

CN901

L

R

7

8

4

5

1

2

3

6

1

2

3

4

SW701

DIGITAL

ANALOG

1-679-420-

11

(11)

2929

CDX-848X

• Waveforms – RF Board –

1 IC101 qh (FE) (CD play mode)

Approx. 100 mVp-p

2 IC101 qk (TE) (CD play mode) 2

Approx. 250 mVp-p

3 IC101 qg (RFAC) (CD play mode)

– MAIN Board –

1 IC101 rd (MDP) (CD play mode) 5 IC201 ia (X1) (CD play mode)

3

3.8 µs

IC101 ih (LRCK), IC501 1 (LRCK) (CD play mode)

22.7 µs

IC101 o; (BCK), IC501 3 (BCK) (CD play mode)

2 Vp-p

4.5 Vp-p

250 ns

6 IC501 6 (XTO) (CD play mode)

59.1 ns

3.9 Vp-p

6.2 Vp-p

• IC Block Diagrams –RF Board –

IC101 CXA2581N-T4

APC AMP

A B C

D

VC

A

–

+

RFAC

SUMMING

AMP

BCD

EQ IN

AC SUM

GND

DVC

VC

1

LD

2

PD

3

4

5

6

A

7

B

8

C

9

D

VOFST

RW/ROM

30

DC OFST

29

A

B

C

D

B C

A

D

DVC

RW/ROM

EQ ON/OFF

RW/ROM

–

+

VOFST

–

+

–

+

DVC VCC

EQ

RFAC

VCA

VCC

–

+

DVC

VC

RFDCI

28

RFDCO

VC

27

VC

26

RFC

25

VFC

24

BST

23

RFG

22

VCC

21

CEI

20

CE

19

TE BAL

1.4 ± 0.3 Vp-p

472 ns

4

IC101 od (XTAI), IC501 4 (CLKO) (CD play mode)

59.1 ns

4.7 Vp-p

5.4 Vp-p

SW

DVCC

DVC

RFAC

10

E

11

F

12

13

DVC

14

15

GM

APC-OFF

(Hi-Z)

RW/ROM

(H/L)

–

+

VC

RW/ROM

B

D

A

C

VOFST

–

+

RW/ROM

–

+

DVC

VC

18

TE

17

FEI

16

FE

3030

IC201 LA6576L-TE-L

FWD

1

INPUT

2

REV

3

VCC2

4

VLO–

5

VLO+

6

VO4+

7

VO4–

8

VO3+

9

VO3–

10

VO2+

VO2–

11

12

VO1+

VO1–

13

VCC1

14

15

VIN1

OUTPUT

CONTROL

LEVEL

SHIFT

LEVEL SHIFT

– +

LEVEL SHIFT

– +

THERMAL SHUT DOWN

– +

5VREG

+ –

– +

CH2-4 MUTE

CH1

MUTE

VIN1/VREF

SWITCH

– +

+ –

S-GND

36

35

MUTE2

34

MUTE1

33

VIN4

32

VIN4–

31

VIN4+

30

VREF-IN

29

VIN1 (VREF)-SW

28

VREF-OUT (CH1)

27

REG-OUT

REG-IN

26

25

VIN3+

VIN3–

24

VIN3

23

22

VIN2+

21

VIN2–

VIN2

20

VIN1+B

19

CDX-848X

16

VIN1–A

VIN1+A

VIN1–B

–

AMP-A

+

17

–

18

AMP-B

+

–MAIN Board –

IC102 MSM51V17400D-10TK-FS

COLUMN

ROW

TIMING

GENERATOR

INTERNAL ADDRESS COUNTER

ROW

DECODERS

REFRESH

CONTROL

CLOCK

WORD

DRIVERS

COLUMN

DECODERS

SENSE

AMPLIFIERS

MEMORY

CELLS

TIMING

GENERATOR

I/O

SELECTOR

INPUT

BUFFERS

DATA BUS

WRITE CLOCK

GENERATOR

OUTPUT

BUFFERS

1 26

VCC

DQ1

2 3

DQ2

4

WE

5

RAS

NC

6 7

NC

8

A10

9

A0

10

A1

11

A2

12

A3

ADDRESS BUFFERS

VSS

25

DQ4 DQ3

24

23

CAS

22

OE

A9

21 20

NC A8

19

A7

18 17

A6 A5

16

A4

15

VSS

13

14

VSS

31

CDX-848X

IC101 CXD3027R

XOE

XCASD2D3D0D1

120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91

D2D3D0

XOE

XCAS

XWE

XRAS

A11

A10

DVDDA0A1A2A3

A11

A10

DVDD

A0A1A2

D1

XWE

XRAS

A3

AVDD2

LOUT2

AIN2

LOUT2

AIN2

AOUT2

AVSS2

AOUT2

AVSS2

AVSS1

AOUT1

AIN1

LOUT1

AVDD1

XVSS

XTAO

XTAI

XVDD

BCKI

DVSS

XWRE

XRDE

XEMP

XWIH XQOK

AMUTE

SDTI

XQCK

SCSY

SCOR

VSS0

SBSO

EXCK XRST

SYSM

SDTO

XLAT CLOK SENS SCLK XSOE ATSK

R4M

VPCO

WFCK

DEMODULATOR

CONVERTER

GFS

MDS

XUGF

EFM

SUB CODE

PROCESSOR

SERVO

AUTO

SEQUENCER

A/D

ERROR

CORRECTOR

32K

RAM

PROCESSOR

C2PO

D/A

INTERFACE

SIGNAL

BLOCK

SERVO

INTERFACE

MIRR DFCT

FOK

SERVO DSP

FOCUS SERVO

TRACKING

SERVO

SLED SERVO

WDCK

VIBRATION

MEMORY

CONTROLLER

+

COMPRESSION

EXPANDER

DAC

MEMORY CONTROLLER,

BUS BOOST BLOCK

LPF

PWM GENERATOR

FOCUS PWM GENERATOR

TRACKING PWM

GENERATOR

SLED PWM

GENERATOR

SELECTOR

DIGITAL

OUT

XOE

XCAS

XWE XRAS XQOK XWIH XEMP XRDE

XWRE

D0 – D4

A0 – A11

SYSM

AMUTE

HPL HPM

HPR

PCMDI

LRCKI

BCKI

AOUT1

AIN1

LOUT1

LOUT2

AIN2

AOUT2

ATSK SCLK SSTP

COUT

DFCT

MIRR

SRDR

FOK

FRDR

FFDR TRDR TFDR

SFDR

BCK

PCMD

LRCK

DOUT

BCK

PCMDI

PCMD LRCKI

LRCK

DOUT

VDD2

WFCK

C2PO

GFS XPCK XUGF

WDCK

VSS2 XTSL

AVDD3

ASYO

ASYI

BIAS RFAC

AVSS3

CLTV

PCO

FILI

FILO VCTL

VPCO

VC

A B

90

BCK

89

PCMDI

88

PCMD

87

LRCKI

86

LRCK

85

DOUT

84

VDD2

83

WFCK

82

C2PO

81

GFS

80

XPCK

79

XUGF

78

WDCK

77

VSS2

76

XTSL

75

AVDD3

74

ASYO

73

ASYI

72

BIAS

71

RFAC

70

AVSS3

69

CLTV

68

PCO

67

FILI

66

FILO

65

VCTL

64

VPCO

63

VC

62

A

61

B

XTAI

XTSL

VCTL

XTAO

CLOCK

GENERATOR

RFAC BIAS

ASYMMETRY

ASYI

CORRECTOR

ASYO

FILO FILI

DIGITAL

PCO

CLTV

XPCK

A9

1

A9

A8

2

A8

A7

3

A7

DVSS

4

A6

5

A6

A5

6

A5

A4

7

A4

XWRE

8

XRDE

9

XEMP

10

XWIH

11

XQOK

12

AMUTE

13

SDTI

14 15

SCSY

16

SCOR

17

VSS0

18

SBSO

19

EXCK

20 21

SYSM

22

SDTO

23

XLAT

24

CLOK

25

SENS

26

SCLK

27

XSOE

28

ATSK

29

R4M

30

PWMI LOCK

MDP

SDTI

SCSY SCOR SBSO

EXCK SDTO

XLAT

CLOK

SENS

XSOE

R4M

IGEN RFDC

VC

D GND

E

F B A

PLL

DIGITAL

CLV

CPU

INTERFACE

SERVO BLOCK

OP AMP

ANALOG SWITCH

32

D VDD

FOK

DFCT

MIRR

VDD0

COUT

31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

VDD0

COUT

MIRR

DFCT

PWMI

FOK

LOCK

PWMI

HPR

LOCK

HPR

HPM

HPL

VDD1

C176

MDP

MDS

SSTP

SFDR

SRDR

TFDR

TRDR

FFDR

FRDR

VSS1

TEST

TES1

A VDD

IGEN

AVDD0

IGEN

A GND

AVSS0

RFDC

E

F

CDX-848X

1 2 3

26 25

28 27

23 22

21

24

7 8

9

10

20 19

4

5

6

LOW-PASS

FILTER

MODE

CONTROL

INTERFACE

SERIAL

INPUT

INTERFACE

CRYSTAL

OSCILLATOR

POWER SUPPLY

MULTI LEVEL

∆∑

MODULATOR

8 TIME OVER

SAMPLING

DIGITAL FILTER

WITH

FUNCTION CONTROLLER

SCK

OPEN

LOW-PASS

FILTER

D/A

CONVERTER

BPZ

CONTROL

D/A

CONVERTER

11 12 13

14 15

18 17 16

LRCK DATA

BCK

DGND

VDD

VCC2R

AGND2R

CLKO

XTI

XTO

EXTR

NC

VOUTR

AGND1

DM0 MUTE

IIS DM1

IW0 RST

ZERO

IW1

VCC2L AGND2L

VCC1

EXTL NC VOUTL

IC203 BR24C16FJ-E2

START

STOP

LOGIC

LOAD

DEVICE

ADDRESS

COMPARATOR

1

GND

A0

2

A1 A2

3

4

D

R/W

DATA WORD

ADDR/COUNTER

IN

D

OUT

COMP

SERIAL

CONTROL

LOGIC

LOAD INC

Y DEC

EN

H.V. PUMP/TIMING

DATA RECOVERY

X DEC

SERIAL MUX

E

D

2

PROM

/ACK

OUT

LOGIC

IC301 LB1930M-TLM

NC

RESET

891014 13 12 11

RESET

SWITCH

BUS RESET

10

OUT1

9 8

NC

7

OUT2

P-GND

6

VCC

1

BUFFER

NC

2

IN1

3

4

IN2

VCC

8

7

TST

SDL

6

SDA

5

S-GND

IC302 BA8272AFV-E2

5

VCC

2 3

1

BUS ON OUT

BUFFER

BUS ON

BUS ON IN

CONTROL

CIRCUIT

LINK OFF

CLK OUT

5 6 7

4

GND

BUS CLK

VREF

DATA OUT

BUS DATA

MOTOR

DRIVE

CIRCUIT

DATA IN

IC304 MJM2395AF08 IC305 MJM2395AF05

CONTROL

2

VOUT

3

GND

1

VIN

4

CONT

IC501 PCM1728E/2K

33

CDX-848X

6-13. IC PIN FUNCTION DESCRIPTION

• MAIN BOARD IC201 MB90473PFV-G-108-BNDE1 (SYSTEM CONTROLLER)

Pin No. Pin Name I/O Description

1, 2

RAMA5, RAMA6

3 ELVR O

O Address signal output to the S-RAM Not used (open)

Motor drive signal (elevator down direction) output to the elevator motor drive (IC301) “L” active *1

4 ELVF O

5 LOADF O

6 LOADR O

RAMA7, RAMA12

7, 8

9 VSS — Ground terminal 10 RAMA14 O Address signal output to the S-RAM Not used (open) 11 RAMWE O Write enable output to the S-RAM Not used (open)

12 to15

30, 31 NC O Not used (open)

RAMA13, RAMA8,

RAMA9, RAMA11

16 UNI SI I Serial data input from the SONY bus interface (IC302) 17 UNI SO O Serial data output to the SONY bus interface (IC302) 18 UNI CK I Serial data transfer clock signal input from the SONY bus interface (IC302) 19 LEDDAT O Not used (open) 20 LEDCLK O Not used (open) 21 VCC — Power supply terminal (+3.3V) 22 LEDLAT O Not used (open) 23 CDON O D/A converter and servo section power supply on/off control signal output “H”: power on 24 ELVON O Mechanism deck section power supply on/off control signal output “H”: power on 25 RX I Input terminal at the flash memory data write mode Not used (open) 26 TX O Output terminal at the flash memory data write mode Not used (open) 27 NC O Not used (open) 28 EECLK O Serial data transfer clock signal output to the EEPROM (IC203) 29 FL BOOT I Flash memory data write control signal input terminal “L” active Not used (fixed at “H”)

32 EEDAT I/O Two-way data bus with the EEPROM (IC203) 33 AVCC — Power supply terminal (+3.3V) (for A/D converter) 34 AVRH I Reference voltage (+3.3V) input terminal (for A/D converter) 35 AVSS — Ground terminal (for A/D converter)

36 EHS I

Motor drive signal (elevator up direction) output to the elevator motor drive (IC301) “L” active *1

Motor drive signal (load chucking direction) output to the chucking motor drive (IC201) “L” active *2

Motor drive signal (save direction) output to the chucking motor drive (IC201) “L” active *2

O Address signal output to the S-RAM Not used (open)

Elevator height position detection signal input from the RV202 (elevator height sensor) (A/D input)

37 MCK I

38, 39 KEY0, KEY1 I Not used (open)

40 VSS — Ground terminal 41 FOK I Focus OK signal input from the CXD3027R (IC101) “L”: NG, “H”: OK 42 GFS I Guard frame sync signal input from the CXD3027R (IC101) “L”: NG, “H”: OK 43 SCLK O Serial data reading clock signal output to the CXD3027R (IC101) 44 SENS I Internal status signal (sense signal) input from the CXD3027R (IC101) 45 BUSON I Bus on/off control signal input from the SONY bus interface (IC302) “H”: bus on 46 BUCHK I

Input of detection signal for the fine adjustment (elevator height (address) adjustment; RV201) of elevator height position (A/D input)

Battery detection signal input “L”: battery on

34

CDX-848X

Pin No. Pin Name I/O Description

47, 48 MD0, MD1 I Setting terminal for the CPU operational mode (fixed at “H” in this set)

49 MD2 I Setting terminal for the CPU operational mode (fixed at “L” in this set) 50 EJECT SW I Eject switch (SW801) input terminal “L” active 51 MAGLK SW I Magazine detect switch (SW201) input terminal “L”: magazine is set 52 SCOR I Subcode sync (S0+S1) detection signal input from the CXD3027R (IC101)

53 GRSCOR I

54 NC O Not used (open)

55 HS O

56 SQSO I Subcode Q data input from the CXD3027R (IC101) 57 NC O Not used (open) 58 SQCK O Subcode Q data reading clock signal output to the CXD3027R (IC101) 59 CDCLK O Serial data transfer clock signal output to the CXD3027R (IC101) 60 CDLAT O Serial data latch pulse signal output to the CXD3027R (IC101) 61 CDDAT O Serial data output to the CXD3027R (IC101) 62 XRST O System reset signal output to the CXD3027R (IC101) and D/A converter (IC501) “L”: reset 63 XQOK O Subcode Q OK pulse signal output to the CXD3027R (IC101) “L” active 64 XRDE O D-RAM read enable signal output to the CXD3027R (IC101) “L” active 65 XWRE O D-RAM write enable signal output to the CXD3027R (IC101) “L” active 66 EMPH O Emphasis control signal output to the D/A converter (IC501) “H”: emphasis on 67 MUTE O Audio line muting on/off control signal output “H”: muting on 68 RAMA10 O Address signal output to the S-RAM Not used (open) 69 RAMCS O Chip select enable output to the S-RAM Not used (open)

70 to 74

RAMIO7 to

RAMIO3

Subcode sync (S0+S1) detection signal input from the D-RAM controller section on the CXD3027R (IC101)

Normal/high speed playback control signal output terminal “L”: high speed playback Not used (open)

I/O Two-way data bus with the S-RAM Not used (open)

System reset signal input from the SONY bus interface (IC302) and reset signal generator (IC303)

75 RESET I

76 RAMIO2 I/O Two-way data bus with the S-RAM Not used (open) 77 X1A O Sub system clock output terminal Not used (open) 78 X0A I Sub system clock input terminal Not used (fixed at “L”) 79 VSS — Ground terminal 80 X0 I Main system clock input terminal (4 MHz) 81 X1 O Main system clock output terminal (4 MHz) 82 VCC — Power supply terminal (+3.3V)

83, 84

85 to 88

RAMIO1, RAMIO0

RAMA0 to RAMA3

89 SINGLE I

90 DOUTSEL I Analog/digital select switch (SW701) input terminal “L”: digital, “H”: analog 91 CFSEL I Custom file on/off setting terminal “L”: custom file on (fixed at “L”)

92 TEXTSEL I

93 ESPSEL I ESP on/off setting terminal “L”: ESP on (fixed at “L”) 94 TEST I Test mode setting terminal “L”: test mode Not used (open) 95 MAG SW I Magazine in/out detect switch input terminal Not used (open)

“L”: reset For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

I/O Two-way data bus with the S-RAM Not used (open)

O Address signal output to the S-RAM Not used (open)

Setting terminal for the single disc/multiple discs mode “L”: single disc mode, “H”: multiple discs mode (fixed at “H”)

CD text mode setting terminal “L”: CD text on, “H”: does not display track name (fixed at “L”)

35

CDX-848X

e

Pin No. Pin Name I/O Description

96 SAVE SW I

97 LOAD SW I

98 LIM SW I

99 RW SEL O CD-ROM/RW selection signal output “L”: CD-ROM, “H”: CD-RW

100 RAMA4 O Address signal output to the S-RAM Not used (open)

*1 elevator motor (M104) control

Mod

Terminal

ELVF (pin 4) “H”“L”“H”“L” ELVR (pin 3) “H”“H”“L”“L”

*2 chucking motor (M103) control

Mod

Terminal

LOADF (pin 5) “H”“L”“H”“L” LOADR (pin 6) “H”“H”“L”“L”

Save end detect switch (SW2) input terminal “L”: When completion of the disc save operation

Chucking end detect switch (SW1) input terminal “L”: When completion of the disc chucking operation

Sled limit in detect switch (SW3) input terminal “L”: When the optical pick-up is inner position

STOP

ELEVATOR UPELEVATOR

DOWN

LOAD

CHUCKING

SAVE BRAKE

BRAKE

36

SECTION 7

EXPLODED VIEWS

CDX-848X

NOTE:

• -XX and -X mean standardized parts, so they may have some difference from the original one.

• Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED)

↑↑

Parts Color Cabinet's Color

7-1. CASE SECTION

7

#2

5

6

11

13

8

• Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.

• The mechanical parts with no reference number in the exploded views are not supplied.

• Hardware (# mark) list and accessories and packing materials are given in the last of the electrical parts list.

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

14

#2

(including fA)

19

#1

10

9

#2

#3

12

#1

#2

13

MG-251B-137

12

RV202

29

2

4

18

#13

3

1

26

25

23

Ref. No. Part No. Description Remark

1 3-047-852-01 DAMPER (T)

* 2 1-679-419-11 SWITCH BOARD

3 1-664-796-11 JACK FLEXIBLE BOARD

* 4 1-679-418-11 JACK BOARD

5 X-3379-711-1 DOOR (H) ASSY (US)

5 X-3379-715-1 DOOR (H) ASSY (AEP, UK) 6 3-376-464-11 SCREW (+PTT 2.6X6), GROUND POINT 7 3-229-226-01 PANEL, FRONT 8 3-042-244-11 SCREW (T) 9 3-041-218-21 ESCUTCHEON (T)

24

not supplied

17

not supplied

15

not supplied

21

20

1

19

fA

(included in 14)

Ref. No. Part No. Description Remark * 15 A-3283-131-A MAIN BOARD, COMPLETE

17 3-935-636-11 SCREW (FP) 18 X-3375-357-1 ARM (FLT) ASSY

* 19 3-041-082-21 PLATE (XPLOD) (AEP, UK) * 19 3-041-082-31 PLATE (XPLOD) (US)

20 X-3375-360-1 ARM (FRT) ASSY

* 21 3-024-065-01 CUSHION (EJECT-T) * 23 1-679-420-11 DIGITAL OUT BOARD * 24 3-011-205-01 BRACKET (LIGHT)

25 3-011-204-21 COVER (LIGHT)

10 3-022-007-01 BUTTON (EJT) (Z)

* 11 3-022-012-01 HEAT SINK (T)

12 3-038-166-01 SPRING (FL), TENSION COIL 13 3-022-010-31 LEVER (FLT)

* 14 3-047-688-01 CASE (UPPER. LOWER)

26 3-924-924-11 COVER (LIGHT) 29 1-676-339-11 MAIN FLEXIBLE BOARD RV202 1-227-137-11 RES, VAR, SLIDE 10K

(ELEVATOR HEIGHT SENSOR)

37

CDX-848X

7-2. MECHANISM DECK SECTION-1

(MG-251B-137)

#3

101

#3

102

103

Ref. No. Part No. Description Remark

101 X-3378-091-1 CHASSIS (U. S) SUB ASSY 102 3-024-161-01 SPRING (SUT)

38

Ref. No. Part No. Description Remark

103 3-011-997-01 SPRING (STOPPER. LOWER)

7-3. MECHANISM DECK SECTION-2

(MG-251B-137)

CDX-848X

#3

152

151

M104

154

153

Ref. No. Part No. Description Remark

151 3-024-170-01 SPRING (SB), TENSION

* 152 3-040-790-01 BRACKET (EVM. S)

153 X-3378-092-1 CHASSIS (D. S) SUB ASSY

Ref. No. Part No. Description Remark * 154 3-014-685-01 SPACER (MO)

M104 A-3301-123-A ELJ MOTOR ASSY (ELEVATOR)

39

CDX-848X

7-4. MECHANISM DECK SECTION-3

(MG-251B-137)

211

#8

213

212

#4

202

M103

201

204

205

206

209

208

#8

210

207

#3

214

#6

#3

#6

Ref. No. Part No. Description Remark

* 201 3-024-150-01 RETAINER (CHM) * 202 X-3378-080-1 BRACKET (CHM. D) ASSY

204 3-321-813-01 WASHER, COTTER POLYETHYLENE 205 3-017-139-01 GEAR (WORM LOAD A) 206 3-022-839-01 ARM (NSW)

207 3-573-936-00 STOPPER, REEL 208 X-3375-220-1 GEAR (LOAD CAM) ASSY

40

Ref. No. Part No. Description Remark

209 3-010-252-11 ROLLER (CRE) 210 3-010-268-01 SPRING (DH), TENSION

* 211 A-3290-194-C MAIN ASSY, CHASSIS (EVY)

212 3-010-254-11 SHAFT (ROTARY PREVENTION C) 213 3-010-253-01 GEAR (LOMINI)

* 214 A-3326-947-A RF BOARD, COMPLETE

M103 A-3301-123-A ELJ MOTOR ASSY (CHUCKING)

7-5. MECHANISM DECK SECTION-4

(MG-251B-137)

CDX-848X

258

256

#7

254

#9

257

252

M101

#11

not supplied

255

#5

#10

259

M102

not supplied

251

253

#11

not supplied

Ref. No. Part No. Description Remark

251 1-676-341-11 OP FLEXIBLE BOARD 252 3-025-743-01 SPRING (FEED), LEAF 253 X-3378-101-1 HOLDER (SLED. S) ASSY 254 3-931-832-01 GEAR (SL MIDWAY)

0 255 8-820-103-03 OPTICAL PICK-UP KSS-720A/K1RP

256 A-3291-669-A SHAFT (FEED) ASSY

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

Ref. No. Part No. Description Remark

257 3-010-263-01 DETENT (SHAFT THRUST)

* 258 1-679-422-11 LSW BOARD

259 A-3301-954-A BASE (OPT. S) (J) ASSY M101 A-3315-151-A SLED MOTOR ASSY (251) M102 A-3301-998-A SPINDLE MOTOR (S) SUB ASSY

41

CDX-848X

DIGITAL OUT JACK

LSW MAIN

SECTION 8

ELECTRICAL PARTS LIST

NOTE:

• Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set.

• -XX and -X mean standardized parts, so they may have some difference from the original one.

• RESISTORS All resistors are in ohms. METAL: Metal-film resistor. METAL OXIDE: Metal oxide-film resistor. F: nonflammable

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

* 1-679-420-11 DIGITAL OUT BOARD

*****************

< CAPACITOR >

C701 1-162-927-11 CERAMIC CHIP 100PF 5% 50V

< CONNECTOR >

CN701 1-770-621-21 PIN, CONNECTOR 4P

< IC >

• Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.

• SEMICONDUCTORS In each case, u: µ, for example: uA. . : µA. . uPA. . : µPA. . uPB. . : µPB. . uPC. . : µPC. . uPD. . : µPD. .

• CAPACITORS uF: µF

• COILS uH: µH

PS901 1-576-398-21 LINK, IC (CCP2E63)

**************************************************************

* 1-679-422-11 LSW BOARD

SW3 1-529-565-41 SWITCH, PUSH (1KEY) (LIMIT)

**************************************************************

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

When indicating parts by reference number, please include the board.

< IC LINK >

**********

< SWITCH >

IC701 8-749-923-53 IC TOTX193 (DIGITAL OUT)

< RESISTOR >

R701 1-216-830-11 METAL CHIP 5.6K 5% 1/16W

< SWITCH >

SW701 1-571-478-11 SWITCH, SLIDE (ANALOG/DIGITAL)

**************************************************************

* 1-679-418-11 JACK BOARD

***********

< CAPACITOR >

C901 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C902 1-164-156-11 CERAMIC CHIP 0.1uF 25V C904 1-162-927-11 CERAMIC CHIP 100PF 5% 50V

< CONNECTOR >

CN901 1-779-077-71 PLUG, CONNECTOR(CONTROL, ANALOG OUT) CN902 1-770-621-21 PIN, CONNECTOR 4P CNJ901 1-774-679-21 CONNECTOR, FPC 16P

< DIODE >

D901 8-719-978-33 DIODE DTZ-TT11-6.8B D902 8-719-978-33 DIODE DTZ-TT11-6.8B

* A-3283-131-A MAIN BOARD, COMPLETE

*********************

1-676-339-12 MAIN FLEXIBLE BOARD

< CAPACITOR >

C101 1-164-156-11 CERAMIC CHIP 0.1uF 25V C102 1-164-156-11 CERAMIC CHIP 0.1uF 25V C103 1-164-156-11 CERAMIC CHIP 0.1uF 25V C104 1-162-965-11 CERAMIC CHIP 0.0015uF 10% 50V C105 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C106 1-162-967-11 CERAMIC CHIP 0.0033uF 10% 50V C107 1-162-960-11 CERAMIC CHIP 220PF 10% 50V C108 1-164-156-11 CERAMIC CHIP 0.1uF 25V C109 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C110 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V

C111 1-164-156-11 CERAMIC CHIP 0.1uF 25V C112 1-164-156-11 CERAMIC CHIP 0.1uF 25V C113 1-164-156-11 CERAMIC CHIP 0.1uF 25V C114 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C115 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V

C121 1-162-960-11 CERAMIC CHIP 220PF 10% 50V C122 1-162-960-11 CERAMIC CHIP 220PF 10% 50V C123 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C161 1-164-156-11 CERAMIC CHIP 0.1uF 25V C162 1-164-156-11 CERAMIC CHIP 0.1uF 25V

< FERRITE BEAD >

FB901 1-500-445-21 FERRITE 0uH FB902 1-500-445-21 FERRITE 0uH FB903 1-500-445-21 FERRITE 0uH

42

C201 1-164-156-11 CERAMIC CHIP 0.1uF 25V C202 1-164-156-11 CERAMIC CHIP 0.1uF 25V C203 1-164-156-11 CERAMIC CHIP 0.1uF 25V C204 1-164-156-11 CERAMIC CHIP 0.1uF 25V C205 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V

C206 1-164-156-11 CERAMIC CHIP 0.1uF 25V C301 1-164-156-11 CERAMIC CHIP 0.1uF 25V

CDX-848X

Ver 1.1 2001.05

MAIN

Ref. No. Part No. Description Remark

C302 1-164-156-11 CERAMIC CHIP 0.1uF 25V C303 1-164-156-11 CERAMIC CHIP 0.1uF 25V C304 1-164-156-11 CERAMIC CHIP 0.1uF 25V

C305 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C306 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C307 1-165-112-11 CERAMIC CHIP 0.33uF 20% 10V C308 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C309 1-164-156-11 CERAMIC CHIP 0.1uF 25V

C310 1-115-466-00 ELECT 1000uF 20% 16V C311 1-115-651-11 ELECT 100uF 20% 16V C312 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C313 1-115-651-11 ELECT 100uF 20% 16V C314 1-164-156-11 CERAMIC CHIP 0.1uF 25V

C315 1-135-605-21 ELECT 1000uF 16V C316 1-126-157-11 ELECT 10uF 20% 16V C317 1-164-156-11 CERAMIC CHIP 0.1uF 25V C318 1-164-156-11 CERAMIC CHIP 0.1uF 25V C319 1-127-491-00 ELECT (SOLID) 22uF 20% 10V

C403 1-164-730-11 CERAMIC CHIP 0.0012uF 10% 50V C404 1-164-730-11 CERAMIC CHIP 0.0012uF 10% 50V C405 1-164-217-11 CERAMIC CHIP 150PF 5% 50V C406 1-164-217-11 CERAMIC CHIP 150PF 5% 50V C407 1-115-651-11 ELECT 100uF 20% 16V

C408 1-164-156-11 CERAMIC CHIP 0.1uF 25V C409 1-115-650-11 ELECT 47uF 20% 16V C410 1-115-650-11 ELECT 47uF 20% 16V C411 1-162-927-11 CERAMIC CHIP 100PF 5% 50V C412 1-162-927-11 CERAMIC CHIP 100PF 5% 50V

C501 1-164-156-11 CERAMIC CHIP 0.1uF 25V C502 1-164-156-11 CERAMIC CHIP 0.1uF 25V C503 1-115-651-11 ELECT 100uF 20% 16V C504 1-164-156-11 CERAMIC CHIP 0.1uF 25V C505 1-115-651-11 ELECT 100uF 20% 16V

C506 1-164-156-11 CERAMIC CHIP 0.1uF 25V C508 1-115-650-11 ELECT 47uF 20% 16V C509 1-115-650-11 ELECT 47uF 20% 16V

< CONNECTOR >

CN301 1-779-321-11 CONNECTOR, FPC 16P

< DIODE >

D302 8-719-017-94 DIODE MA8180 D303 8-719-017-94 DIODE MA8180 D306 8-719-069-56 DIODE UDZS-TE17-6.2B D307 8-719-988-61 DIODE 1SS355TE-17 D310 8-719-422-62 DIODE MA8062-L-TX

D313 8-719-071-34 DIODE RB521S-30-TE61 D314 8-719-071-34 DIODE RB521S-30-TE61

< FERRITE BEAD >

Ref. No. Part No. Description Remark

IC301 8-759-527-33 IC LB1930M-TLM

IC302 8-759-829-46 IC BA8272AFV-E2 IC303 8-759-827-97 IC XC61CN2502PR IC304 8-759-833-13 IC NJM2395AF08 IC305 8-759-833-12 IC NJM2395AF05 IC306 8-759-444-93 IC RH5RL33AA-T1

IC401 8-759-662-11 IC TLV2362IPWR IC402 8-759-662-11 IC TLV2362IPWR IC501 8-759-648-44 IC PCM1728E/2K

< TRANSISTOR >

Q202 8-729-901-00 TRANSISTOR DTC124EK Q301 8-729-230-49 TRANSISTOR 2SC2712-YG Q303 8-729-820-46 TRANSISTOR 2SB1202FAS Q304 8-729-230-49 TRANSISTOR 2SC2712-YG Q402 8-729-027-23 TRANSISTOR DTA114EKA-T146

Q410 8-729-015-39 TRANSISTOR DTC323TK Q420 8-729-015-39 TRANSISTOR DTC323TK

< RESISTOR >

R101 1-216-839-11 METAL CHIP 33K 5% 1/16W R102 1-216-833-11 METAL CHIP 10K 5% 1/16W R103 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R104 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R105 1-216-857-11 METAL CHIP 1M 5% 1/16W

R106 1-216-853-11 METAL CHIP 470K 5% 1/16W R107 1-216-833-11 METAL CHIP 10K 5% 1/16W R108 1-216-853-11 METAL CHIP 470K 5% 1/16W R109 1-216-857-11 METAL CHIP 1M 5% 1/16W R122 1-216-839-11 METAL CHIP 33K 5% 1/16W

R123 1-216-845-11 METAL CHIP 100K 5% 1/16W R125 1-216-839-11 METAL CHIP 33K 5% 1/16W R201 1-216-845-11 METAL CHIP 100K 5% 1/16W R202 1-216-845-11 METAL CHIP 100K 5% 1/16W R203 1-216-833-11 METAL CHIP 10K 5% 1/16W

R204 1-216-853-11 METAL CHIP 470K 5% 1/16W R205 1-216-864-11 METAL CHIP 0 5% 1/16W R206 1-216-864-11 METAL CHIP 0 5% 1/16W R207 1-216-821-11 METAL CHIP 1K 5% 1/16W R208 1-216-864-11 METAL CHIP 0 5% 1/16W

R209 1-216-833-11 METAL CHIP 10K 5% 1/16W R210 1-216-864-11 METAL CHIP 0 5% 1/16W R211 1-216-864-11 METAL CHIP 0 5% 1/16W R221 1-216-833-11 METAL CHIP 10K 5% 1/16W R222 1-216-833-11 METAL CHIP 10K 5% 1/16W

R250 1-216-845-11 METAL CHIP 100K 5% 1/16W R301 1-216-841-11 METAL CHIP 47K 5% 1/16W R302 1-216-845-11 METAL CHIP 100K 5% 1/16W R303 1-216-846-11 METAL CHIP 120K 5% 1/16W R304 1-216-847-11 METAL CHIP 150K 5% 1/16W

FB101 1-500-445-21 FERRITE 0uH

< IC >

IC101 8-752-398-18 IC CXD3027R IC102 8-759-538-44 IC MSM51V17400D-10TK-FS IC201 6-800-233-02 IC MB90473PFV-G-110-BNDE1 IC203 8-759-660-38 IC BR24C16FJ-E2

R305 1-216-845-11 METAL CHIP 100K 5% 1/16W R306 1-216-841-11 METAL CHIP 47K 5% 1/16W R310 1-216-841-11 METAL CHIP 47K 5% 1/16W R311 1-216-845-11 METAL CHIP 100K 5% 1/16W R401 1-216-833-11 METAL CHIP 10K 5% 1/16W

R402 1-216-833-11 METAL CHIP 10K 5% 1/16W R403 1-216-833-11 METAL CHIP 10K 5% 1/16W

43

CDX-848X

MAIN RF

Ref. No. Part No. Description Remark

R404 1-216-833-11 METAL CHIP 10K 5% 1/16W R405 1-216-833-11 METAL CHIP 10K 5% 1/16W R406 1-216-833-11 METAL CHIP 10K 5% 1/16W

R407 1-218-871-11 RES-CHIP 10K 2% 1/16W R408 1-218-871-11 RES-CHIP 10K 2% 1/16W R409 1-218-645-11 RES-CHIP 11K 2% 1/16W R410 1-218-645-11 RES-CHIP 11K 2% 1/16W R411 1-216-853-11 METAL CHIP 470K 5% 1/16W

R412 1-216-853-11 METAL CHIP 470K 5% 1/16W R413 1-216-809-11 METAL CHIP 100 5% 1/16W R414 1-216-809-11 METAL CHIP 100 5% 1/16W R415 1-216-845-11 METAL CHIP 100K 5% 1/16W R416 1-216-845-11 METAL CHIP 100K 5% 1/16W

R501 1-216-821-11 METAL CHIP 1K 5% 1/16W

< VARIABLE RESISTOR >

RV201 1-223-834-11 RES, ADJ, CARBON 47K

< SWITCH >

SW201 1-529-565-41 SWITCH, PUSH (1 KEY) (MAGAZINE DETECT)

< VIBRATOR >

X201 1-781-282-11 VIBRATOR, CERAMIC (4MHz) X501 1-795-306-11 OSCILLATOR, CERAMIC (16.9344MHz)

**************************************************************

* A-3326-947-A RF BOARD, COMPLETE

*******************

< CAPACITOR >

C101 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C102 1-126-206-11 ELECT CHIP 100uF 20% 6.3V C103 1-164-156-11 CERAMIC CHIP 0.1uF 25V C104 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C105 1-126-206-11 ELECT CHIP 100uF 20% 6.3V

C106 1-164-156-11 CERAMIC CHIP 0.1uF 25V C107 1-164-156-11 CERAMIC CHIP 0.1uF 25V C108 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C109 1-164-156-11 CERAMIC CHIP 0.1uF 25V C111 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V

C121 1-126-206-11 ELECT CHIP 100uF 20% 6.3V C122 1-164-156-11 CERAMIC CHIP 0.1uF 25V C201 1-117-681-11 ELECT CHIP 100uF 20% 16V C202 1-164-156-11 CERAMIC CHIP 0.1uF 25V C203 1-162-962-11 CERAMIC CHIP 470PF 10% 50V

C204 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C205 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C206 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C207 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C208 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V

C209 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C217 1-164-156-11 CERAMIC CHIP 0.1uF 25V

< CONNECTOR >

Ref. No. Part No. Description Remark

< IC >

IC101 8-752-089-74 IC CXA2581N-T4 IC201 8-759-832-99 IC LA6576L-TE-L

< TRANSISTOR >

Q101 8-729-141-48 TRANSISTOR 2SB624-BV345 Q102 8-729-901-00 TRANSISTOR DTC124EK

< RESISTOR >

R101 1-216-801-11 METAL CHIP 22 5% 1/16W R102 1-216-837-11 METAL CHIP 22K 5% 1/16W R103 1-216-837-11 METAL CHIP 22K 5% 1/16W R104 1-216-845-11 METAL CHIP 100K 5% 1/16W R105 1-216-801-11 METAL CHIP 22 5% 1/16W

R106 1-216-864-11 METAL CHIP 0 5% 1/16W R107 1-216-845-11 METAL CHIP 100K 5% 1/16W R108 1-216-833-11 METAL CHIP 10K 5% 1/16W R109 1-216-836-11 METAL CHIP 18K 5% 1/16W R110 1-216-836-11 METAL CHIP 18K 5% 1/16W

R112 1-216-845-11 METAL CHIP 100K 5% 1/16W R113 1-218-859-11 METAL CHIP 3.3K 0.5% 1/16W R117 1-216-833-11 METAL CHIP 10K 5% 1/16W R119 1-216-864-11 METAL CHIP 0 5% 1/16W R120 1-218-879-11 METAL CHIP 22K 0.5% 1/16W

R121 1-218-847-11 METAL CHIP 1K 0.5% 1/16W R122 1-218-847-11 METAL CHIP 1K 0.5% 1/16W R201 1-216-826-11 METAL CHIP 2.7K 5% 1/16W R202 1-216-833-11 METAL CHIP 10K 5% 1/16W R203 1-216-833-11 METAL CHIP 10K 5% 1/16W

R204 1-216-839-11 METAL CHIP 33K 5% 1/16W R205 1-216-833-11 METAL CHIP 10K 5% 1/16W R206 1-216-839-11 METAL CHIP 33K 5% 1/16W R207 1-216-833-11 METAL CHIP 10K 5% 1/16W R208 1-216-839-11 METAL CHIP 33K 5% 1/16W

R209 1-216-833-11 METAL CHIP 10K 5% 1/16W R210 1-216-839-11 METAL CHIP 33K 5% 1/16W R211 1-216-833-11 METAL CHIP 10K 5% 1/16W R212 1-216-839-11 METAL CHIP 33K 5% 1/16W R213 1-216-833-11 METAL CHIP 10K 5% 1/16W

R214 1-216-839-11 METAL CHIP 33K 5% 1/16W R215 1-216-841-11 METAL CHIP 47K 5% 1/16W R216 1-216-842-11 METAL CHIP 56K 5% 1/16W R218 1-216-841-11 METAL CHIP 47K 5% 1/16W R219 1-216-843-11 METAL CHIP 68K 5% 1/16W

R220 1-216-834-11 METAL CHIP 12K 5% 1/16W R222 1-216-821-11 METAL CHIP 1K 5% 1/16W R223 1-216-819-11 METAL CHIP 680 5% 1/16W

< SWITCH >

SW1 1-529-566-41 SWITCH, PUSH (1KEY)

(CHUKING END DETECT)

SW2 1-529-566-41 SWITCH, PUSH (1KEY) (SAVE END DETECT)

**************************************************************

CN102 1-778-303-21 CONNECTOR, FPC (ZIF) 16P CNJ101 1-778-777-21 CONNECTOR, FPC 26P

44

CDX-848X

SWITCH

Ref. No. Part No. Description Remark

* 1-679-419-11 SWITCH BOARD

*************

< SWITCH >

SW801 1-692-431-21 SWITCH, TACTILE (Z)

***********************************************************

MISCELLANEOUS

**************

3 1-664-796-11 JACK FLEXIBLE BOARD 251 1-676-341-11 OP FLEXIBLE BOARD

0 255 8-820-103-03 OPTICAL PICK-UP KSS-720A/K1RP

M101 A-3315-151-A SLED MOTOR ASSY (251) M102 A-3301-998-A SPINDLE MOTOR (S) SUB ASSY

M103 A-3301-123-A ELJ MOTOR ASSY (CHUCKING) M104 A-3301-123-A ELJ MOTOR ASSY (ELEVATOR) RV202 1-227-137-11 RES, VAR, SLIDE 10K

(ELEVATOR HEIGHT SENSOR)

************************************************************

**************

HARDWARE LIST

**************

#1 7-627-852-07 SCREW, PRECISION +P 1.7X2.5 #2 7-685-792-09 SCREW +PTT 2.6X6 (S) #3 7-685-781-09 SCREW +PTT 2X4 (S) #4 7-624-104-04 STOP RING 2.0, TYPE-E #5 7-627-554-07 SCREW, PRECISION +P 2X2.2

Ref. No. Part No. Description Remark

PARTS FOR INSTALLATION AND CONNECTIONS

**************************************

501 3-040-583-21 BRACKET (T)

* 502 X-3369-824-1 SCREW ASSY

503 1-790-455-21 CORD, CONNECTION (RCA PIN CORD 5.5m) 504 1-590-519-21 CORD (WITH CONNECTOR) (BUS CABLE 5.5m)

501 502

BRACKET

× 2

+PSW4 × 10

× 4

TAPPING SCREW

SCREW ASSY

(DIA.5 × 20) × 4

503 504

RCA PIN CORD 5.5 m

× 1

BUS CABLE 5.5 m

× 1

#6 7-628-253-00 SCREW +PS 2X4 #7 7-627-553-27 SCREW, PRECISION +P 2X2.5 #8 7-624-102-04 STOP RING 1.5, TYPE-E #9 7-627-850-28 SCREW, PRECISION +P 1.4X3 #10 7-627-000-00 SCREW, PRECISION +P1.7X2.2 TYPE 3

#11 7-627-553-37 PRECISION SCREW +P 2X3 TYPE 3 #13 7-685-853-04 SCREW +BVTT 2X6 (S)

************************************************************

ACCESSORIES & PACKING MATERIALS

*******************************

3-225-368-11 MANUAL, INSRTUCTION (ENGLISH, FRENCH) 3-225-368-21 MANUAL, INSRTUCTION (ENGLISH, FRENCH,

GERMAN, DUTCH, ITALIAN)

3-225-368-31 MANUAL, INSRTUCTION (SPANISH, SWEDISH,

PORTUGUESE, POLISH, RUSSIAN, GREEK)

A-3301-944-A MAGAZINE (250T) ASSY

************************************************************

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

45

CDX-848X

MEMO

46

SERVICE MANUAL

Ver 1.2 2001.06

SUPPLEMENT-1

File this supplement with the service manual.

Subject: Change of RF/LSW boards

CDX-848X

US Model

AEP Model

UK Model

(ECN-CSA04819)

In this set, RF/LSW boards have been changed in the midway of production. Printed wiring boards and schematic diagrams of new type, and changed parts list are described in this supplement-1. Refer to original service manual for other information.

• NEW/FORMER TYPE DISCRIMINATION

– RF BOARD (Component Side) –

Former type : 1-679-421-11 New type : 1-679-421-12

– LSW BOARD (Component Side) –

Former type : 1-679-422-11 New type : 1-679-422-12

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

CDX-848X

Note on Printed Wiring Board:

• Y : parts extracted from the conductor side.

• : 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 (Conductor Side) the pattern face are indicated. Parts face side: Parts on the par ts face side seen from (Component Side) the parts face are indicated.

Note on Schematic Diagram:

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

• All resistors are in Ω and 1/ specified.

Note: The components identified by mark 0 or dotted line

with mark 0 are critical for safety. Replace only with part number specified.

• A : B+ Line.

• Pow er voltage is dc 14.4V and fed with regulated dc po wer supply from CD changer controller.

• Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD PLAY

• V oltages 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

: Impossible to measure

∗

4

W or less unless otherwise

CDX-848X

PRINTED WIRING BOARDS – RF/LSW Boards –

• Semiconductor Location

Ref. No. Location

IC101 H-6 IC201 J-5

Q101 F-7 Q102 H-7

1

2 3 4 5 6 7 8 9 10 11 12 13

A

SW2

B

SW1

CHUKING

END DETECT

SAVE END

DETECT

C

TP106

TP105

TP103

TP104

WHT

YEL

RED

BLK

D

M101

M

(SLED)

E

M103

M

(CHUKING)

F

G

OPTICAL PICK-UP

BLOCK

(KSS-720A)

OP FLEXIBLE

BOARD

CN102

R103

H

C107

TP

(VC)

(RFAC)

R223

R222

R104

R220

R218

R219

C202

IC201

C106

R106

C209

R215

SW3

MAIN FLEXIBLE

1-679-422-

BOARD

12

(12)

CNJ101

R214

R212

R210

R208

R206

R204

R201

R213

R211

R209

R207

R205

R203

R202

C208

C207

C206

C205

C204

C203

C217

I

A

MAIN BOARD

J

LSW BOARD

BLU

K

(LIMIT)

YEL

R102

IC101

TP

(TE)

R107

C109

R108

R216

R109

C103

C111

R110

Q101

C101

R117

C102

R119

R105

R122

R113

TP107

TP108

TP102

TP101

R101

Q102

R121

C108

R120

R112

1-679-421-

C104

C122

YEL

BLU

BLK

RED

(12)

C121

M102

M

(SPINDLE)

12

C105

C201

1-679-421-

12

(12)

22

SCHEMATIC DIAGRAM – RF/LSW Boards –

CDX-848X

The components identified by mark 0 or dotted line with mark 0 are critical for safety.

33

Replace only with part number specified.

CDX-848X

LSW RF

ELECTRICAL PARTS LIST

NOTE:

• Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set.

• -XX and -X mean standardized parts, so they may have some difference from the original one.

• RESISTORS All resistors are in ohms. METAL: Metal-film resistor. METAL OXIDE: Metal oxide-film resistor. F: nonflammable

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

* 1-679-422-12 LSW BOARD