Sony CDX-CA900X, CDX-CA900 Service Manual

CDX-CA900/CA900X

SERVICE MANUAL

Ver 1.0 2002. 04

• 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 90 dB Frequency response 10 – 20,000 Hz Wow and flutter Below measurable limit

Tuner section

Tuning range 87.5 – 107.9 MHz (US, Canadian Model)

87.5 – 108.0 MHz (E Model) Antenna terminal External antenna connector Intermediate frequency 10.7 MHz/450 kHz Usable sensitivity 8 dBf Selectivity 75 dB at 400 kHz Signal-to-noise ratio 66 dB (stereo),

72 dB (mono)

Harmonic distortion at 1 kHz

0.6% (stereo),

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

AM (US, Canadian Model) Tuning range 530 – 1,710 kHz Antenna terminal External antenna connector Intermediate frequency 10.7 MHz/450 kHz Sensitivity 30 µV

US Model

Canadian Model

CDX-CA900X

E Model

CDX-CA900

Model Name Using Similar Mechanism NEW CD Drive Mechanism Type MG-393XA-121//Q Optical Pick-up Name KSS-720A

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 (front /rear)

Subwoofer output (mono)

Power antenna relay control terminal

Power amplifier control terminal Inputs Telephone ATT control terminal

Illumination control terminal

BUS control input terminal

BUS audio input or AUX IN terminal

Remote controller input terminal (E Model)

Antenna input terminal Tone controls Bass ±10 dB at 62 Hz (US, Canadian Model)

Bass ±8 dB at 100 Hz (E Model)

Treble ±10 dB at 16 kHz (US, Canadian Model)

Treble ±8 dB at 10 kHz (E Model) Loudness +8 dB at 100 Hz

+2 dB at 10 kHz

– Continued on next page –

MW/LW (E Model) Tuning range MW : 531 – 1,602 kHz

Aerial terminal External aerial connector Intermediate frequency 10.7 MHz/450 kHz Sensitivity MW : 30 µV

9-874-007-01

LW : 153 – 279 kHz

LW : 40 µV

Sony Corporation

e Vehicle Company Published by Sony Engineering Corporation

FM/AM COMPACT DISC PLAYER

CDX-CA900X

FM/MW/LW COMPACT DISC PLAYER

CDX-CA900

CDX-CA900/CA900X

Power requirements 12 V DC car battery

(negative ground)

Dimensions Approx. 178 × 50 × 179 mm

(7 1/8 × 2 × 7 1/8 in.) (w/h/d)

Mounting dimensions Approx. 182 × 53 × 162 mm

(7 1/4 × 2 1/8 × 6 1/2 in.) (w/h/d)

Mass Approx. 1.3 kg

(2 lb. 14 oz.)

Supplied accessories Parts for installation and connections (1 set)

Front panel case (1) Card remote commander (1) RM-X112 (US, Canadian model) RM-X113 (E model) Rotary commander (1) RM-X6S

Note

This unit cannot be connected to a digital preamplifier or an equalizer.

Design and specifications are subject to change without notice.

SERVICE NOTES

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

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

NOTES ON LASER DIODE EMISSION CHECK

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

Notes on Chip Component Replacement

• Never reuse a disconnected chip component.

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

aged by heat.

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 bloc

semi-fixed resistor

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)

Notes on CD-R/CD-RW discs

• You can play CD-Rs (recordable CDs)/CD-RWs (re writable CDs) designed for audio use on this unit. Look for these marks to distinguish CD-Rs/CD-RWs for audio use.

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.

These marks denote that a disc is not for audio use.

• Some CD-Rs/CD-RWs (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/CD-RW that is not finalized∗.

∗ A process necessary for a recorded CD-R/CD-RW disc to be

played on the audio CD player.

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.

TABLE OF CONTENTS

CDX-CA900/CA900X

1. GENERAL

Location of controls (US, Canadian Model) ........................... 4

Location of controls (E Model) ...............................................4

Connections (US, Canadian Model)........................................ 5

Connections (E Model) ........................................................... 6

2. DISASSEMBLY

2-1. Sub Panel Assy .................................................................... 7

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

2-3. Main Board ......................................................................... 8

2-4. Heat Sink ............................................................................. 9

2-5. Chassis (T.U) Assy .............................................................. 9

2-6. Disc In Board .................................................................... 10

2-7. Servo Board....................................................................... 10

2-8. Shaft Roller Assy, Load Board .......................................... 11

2-9. Floating Block Assy .......................................................... 11

2-10. Optical Pick-up Block ....................................................... 12

3. DIAGRAMS

3-1. IC Pin Descriptions ...........................................................13

3-2. Circuit Boards Location ....................................................18

3-3. Block Diagram –CD Section–........................................... 19

3-4. Block Diagram –Tuner Section–....................................... 20

3-5. Block Diagram –Display Section–.................................... 21

3-6. Printed Wiring Boards –CD Mechanism Section–............ 22

3-7. Schematic Diagram –CD Mechanism Section– ................ 24

3-8. Schematic Diagram –Main Section (1/4)– ........................ 25

3-9. Schematic Diagram –Main Section (2/4)– ........................ 26

3-10. Schematic Diagram –Main Section (3/4)– ........................ 27

3-11. Schematic Diagram –Main Section (4/4)– ........................ 28

3-12. Printed Wiring Board –Relay Section– .............................29

3-13. Printed Wiring Board –Main Section– .............................. 30

3-14. Printed Wiring Board –Key Section– ................................ 32

3-15. Schematic Diagram –Key Section–................................... 33

4. EXPLODED VIEWS

4-1. Chassis Section ................................................................. 37

4-2. Main Board Section .......................................................... 38

4-3. Front panel Section ........................................................... 39

4-4. CD Mechanism Section (1) ............................................... 40

4-5. CD Mechanism Section (2) ............................................... 41

4-6. CD Mechanism Section (3) ............................................... 42

5. ELECTRICAL PARTS LIST ........................................43

EXTENSION CABLE AND SERVICE POSITION

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

• Connect the MAIN board (CN401) and the SERVO board (CN1) with the extension cable (Part No. J-2502-062-1).

MAIN BOARD CN401

SERVO BOARD CN1

CDX-CA900/CA900X

SECTION 1

GENERAL

(US, Canadian Model) (E Model)

This section is extracted from instruction manual.

(US, Canadian Model) (E Model)

Connections (US, Canadian Model)

CDX-CA900/CA900X

Connections (E Model)

SECTION 2

DISASSEMBLY

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

SET

2-5. CHASSIS (T.U) ASSY

(Page 9)

2-1. SUB PANEL ASSY

(Page 7)

2-6. DISC IN BOARD

2-2. CD MECHANISM BLOCK

(Page 8)

2-3. MAIN BOARD

(Page 8)

(Page 10)

2-8. SHAFT ROLLER ASSY,

LOAD BOARD (Page 11)

CDX-CA900/CA900X

2-7. SERVO BOARD

(Page 10)

2-4. HEAT SINK

(Page 9)

2-9. FLOATING BLOCK ASSY

(Page 11)

2-10. OPTICAL PICK-UP BLOCK

(Page 12)

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

2-1. SUB PANEL ASSY

claws

PTT 2.6x6

sub panel assy

PTT 2.6x6

CN701

claw

CDX-CA900/CA900X

2-2. CD MECHANISM BLOCK

CD mechanism block

PTT 2.6x4

bracket (CD)

PTT 2.6x4

PTT 2.6x

2-3. MAIN BOARD

PTT 2.6x6

MAIN board

PTT 2.6x6

CN401

PTT 2.6x

PTT 2.6x4

2-4. HEAT SINK

CDX-CA900/CA900X

heat sink

PTT 2.6x1

2-5. CHASSIS (T.U) ASSY

Unsolder the

lead wires.

P 2x3

PTT 2.6x4

PTT 2.6x10

PTT 2.6x16

P 2x3

chassis (T.U) assy

heat sink (MG393)

black

red

white

P 2x4

CDX-CA900/CA900X

2-6. DISC IN BOARD

guide (disc)

PS 2x3

DISC IN board

2-7. SERVO BOARD

Removal the solders.

loading motor assy

P 2x3

claws

PS 2x4

CN3

SERVO board

connector

Removal the solders.

BLU BLU

optical pick-up block

2-8. SHAFT ROLLER ASSY, LOAD BOARD

• When installing, take note of the positions

arm (roller) and washers. (Fig. 1)

retaing ring (roller)

bearing (roller)

PS 2x3

LOAD board

bearing (roller)

retaing ring (roller)

washer (RA)

arm

shaft roller assy

arm (roller T)

washer (RA)

Fig. 1

CDX-CA900/CA900X

bearing (roller)

arm

2-9. FLOATING BLOCK ASSY

compression spring (FL)

tension spring (KF1)

tension spring (RA3)

floating block assy

compression spring (FL)

tension spring (KR1)

Fit lever (D) in the

direction of the arrow.

Turn loading ring in the

direction of the arrow.

damper (T)

CDX-CA900/CA900X

2-10. OPTICAL PICK-UP BLOCK

P 2x3

sled motor assy

shaft (feed) assy

P 2x3

leaf spring (feed)

optical pick-up block

CDX-CA900/CA900X

SECTION 3

DIAGRAMS

3-1. IC PIN DESCRIPTIONS

• IC501 MB90574CPMT-G-367-BNDE1 (SYSTEM CONTROL) (US, Canadian Model)

• IC501 MB90574CPMT-G-368-BNDE1 (SYSTEM CONTROL) (E Model)

Pin No. Pin Name I/O Pin Description

1 RF OK I Servo IC RFOK signal input from servo IC (IC1) 2 CD RST O Servo IC reset signal output to servo IC (IC1)

3A0O

4 STB O Servo IC data storob signal output to servo IC (IC1) Data latch: “L” 5ATT O System mute control signal output 6XTAL EN O Not used in this set. 7 LIMIT I CD mechanism limit switch signal input (SW3) 8 VCC — Power supply pin (+5 V)

9 AMP ATT O Power amp mute signal output to power amp (IC381) 10 E2PSIO I/O EEPROM data signal input/output with tuner unit (TUX201) 11 E2PCKO O EEPROM clock signal output to tuner unit (TUX201) 12 DOOR SW/FLS SI I Front panel open/close detection signal input/Flash write data signal input 13 FLS SO O Flash write data signal output 14 BUS ON O Bus on control signal output 15 BEEP O Beep signal output to power amp (IC381) 16 (NCO) O Not used. (Open) 17 UNISI I SONY bus data signal input 18 UNISO O SONY bus data signal output 19 UNICKO O SONY bus clock signal output

20, 21 (NCO) O Not used. (Open)

22 SYSRST O System reset signal output to bus interface (IC601) 23 (NCO) O Not used. 24 SIRCS I Remote control data signal input 25 TSI I Servo IC serial data signal input from servo IC (IC1) 26 TSO O Servo IC serial data signal output to servo IC (IC1) 27 TCKO O Servo IC serial clock signal output to servo IC (IC1) 28 PH1 I CD mechanism PH1 detection signal input Not used in this set. 29 CD DSW I CD mechanism down switch signal input (SW4) 30 IN SW/PH2 I CD mechanism disc-in switch signal input (SW1) 31 PH3 I CD mechanism PH3 detection signal input Not used in this set. 32 CD LM LO O CD mechanism loading motor control signal output 33 VSS — Ground pin 34 C — Capacitance pin of power stabilized 35 CD LM EJ O CD mechanism eject motor control signal output 36 AMP ON O Amp on signal output to power amp (IC381) “L”: OFF, “H”: ON 37 VOLATT O Electronic volume mute signal output to electronic volume (IC301) “L”: Mute 38 DVCC — D/A converter VREF input (+5 V) 39 DVSS — D/A converter ground pin 40 ADSO1 O ADSO select switch output 1 41 ADSO2 O ADSO select switch output 2 42 AVCC — Analog power supply pin (+5 V) 43 AVRH — A/D convert Vref+ input (+5 V) 44 AVRL — A/D convert Vref– input (0 V) 45 AVSS — Analog ground pin 46 KEYIN0 I Key signal input 47 NC O Not used. (Open) 48 RC IN0 I Rotary commander signal input from remote in jack (J651) 49 (NCO) O Not used. (Open) 50 QUALITY I Tuner noise detection signal input (E model)

Servo IC command/parameter identification signal output to servo IC (IC1) Command transmission: “L”

CDX-CA900/CA900X

Pin No. Pin Name I/O Pin Description

51 NC O Not used. (Open) 52 MPTH O Not used in this set. (Open) 53 VSM I S-meter signal input from tuner unit (TUX201) 54 VCC — Power supply pin (+5 V) 55 BUS/AUX O BUS/AUX audio ground select signal output “H”: BUS 56 NS MASK O Tuner noise mask signal output (E model) 57 BOOT O Display microcomputer write control signal output to sub system control (IC701) 58 DOORIND O Front panel indicator signal output

59 to 62 — I Not used in this set. (Connect to ground.)

63 VSS — Ground pin 64 CD PACK I Servo IC CD text pack synchronization signal input

65, 66 (NCO) O Not used. (Open)

67 CD SELFSW I CD mechanism self load position detection switch signal input (SW2) 68 — O Not used. (Open) 69 FLASH W I Flash write mode detection signal input 70 I2CSIO O Tuner (TUX201), electronic volume (IC301) communication data signal output 71 I2CCKO O Tuner (TUX201), electronic volume (IC301) communication clock signal output 72 KEYACK I Key acknowledge detection signal input 73 X1A — Low speed oscillation signal input (32.768 kHz) 74 X0A — Low speed oscillation signal input (32.768 kHz) 75 DAVN I RDS data block synchronization detection signal input (E model) 76 (NCO) O Not used. (Open) 77 BU IN I Back up power detection signal input

78, 79 — O Not used. (Open)

80 ADON O Power control signal output of A/D converter 81 NOSESW I Front panel attachment detection signal input from nose detect switch (S102) “L”: ON 82 FLASH ON O Flash write jig power supply signal output 83 PWON O System power control signal output 84 — O Not used. (Open) 85 RAMBU I Reset detection signal input of RAM 86 HSTX I Hardware standby signal input “L”: Standby mode 87 MD2 I Operation mode signal input Connect to ground in this set.

88, 89 MD1, 0 I Operation mode signal input Connect to VCC in this set.

90 RESET I Microcomputer reset signal input 91 VSS — Ground pin 92 X0 — High speed oscillation signal input (3.68 MHz) 93 X1 — High speed oscillation signal input (3.68 MHz) 94 VCC — Power supply pin (+5 V)

95, 96 NC O Not used. (Open)

97 to 101 (NCO) O Not used. (Open)

102

103 10k/9k (P) I Not used. (Open) Destination detection signal input 104 (NCO) O Not used. (Open) 105 CD MON O CD mechanism power control signal output to power supply (IC801) 106 CD ON O CD mechanism voltage control signal output to power supply (IC801) 107 RCIN1 (P) I Rotary commander signal input from remote in jack (J651) 108 TESTIN (P) I Test mode set up detection signal input 109 TELATT (P) I Tell mute detection signal input 110 ILLIN (P) I Illumination line detection signal input “L”: Dimmer on 111 — O Not used. (Open) 112 (NCO) O Not used. (Open) 113 TUNON O Tuner on signal output

MODELSEL0

U•E/J (P)

I Not used. (Open) Destination detection signal input

CDX-CA900/CA900X

Pin No. Pin Name I/O Pin Description

114 to 116 — O Not used. (Open)

117 ACCIN I ACC power detection signal input “L”: ACC on 118 — O Not used. (Open) 119 VSS — Ground pin 120 CD TSTB O Servo IC CD text parameter storob signal output to servo IC (IC1)

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