Sony CDXM-9900 Service manual

CDX-M9900/M9905X

SERVICE MANUAL

Ver 1.0 2004. 02

Photo: CDX-M9900

• The tuner and CD sections have no adjustments.

SPECIFICATIONS

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.

Model Name Using Similar Mechanism CDX-F5500/F5500X/FW570 CD Drive Mechanism Type MG-611MA-186//K Optical Pick-up Name KSS1000E

US Model

Canadian Model

CDX-M9900/M9905X

AEP Model

UK Model

E Model

CDX-M9900

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

LW : 153 – 279 kHz Aerial terminal External aerial connector Intermediate frequency 10.7 MHz/450 kHz Sensitivity MW : 30 µV

LW : 40 µV

CD player section

Signal-to-noise ratio 120 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 (AEP, UK, E Model) Antenna terminal External antenna connector Intermediate frequency 10.7 MHz/450 kHz Usable sensitivity 9 dBf Selectivity 75 dB at 400 kHz Signal-to-noise ratio 67 dB (stereo),

69 dB (mono)

Harmonic distortion at 1 kHz

0.5% (stereo),

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

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

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

Parking brake input terminal

(US, Canadian, AEP, UK Model)

BUS control input terminal

BUS audio input/AUX IN terminal

Antenna input terminal

Video input terminal

– Continued on next page –

FM/AM COMPACT DISC PLAYER

US, Canadian Model

FM/MW/LW COMPACT DISC PLAYER

AEP, UK, E Model

9-877-633-01

Sony Corporation

e Vehicle Company Published by Sony Engineering Corporation

CDX-M9900/M9905X

Tone controls Bass: ±8 dB at 100 Hz

Treble: ±8 dB at 10 kHz

Loudness +8 dB at 100 Hz

+2 dB at 10 kHz

Power requirements 12 V DC car battery

(negative ground)

Dimensions Approx. 178 × 50 × 187 mm

(7 1/8 × 2 × 7 3/8 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. 1.6 kg

(3 lb. 8 oz.)

Supplied accessories Card remote commander RM-X145A (1)

(US, Canadian Model) Card remote commander RM-X144 (1) (AEP, UK, E Model) Parts for installation and connections (1 set) Front panel cover (1)

Note

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

Design and specifications are subject to change without notice.

SERVICE NOTES

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

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

• US, Canadian model

CAUTION

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

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

optical pick-up

semi-fixed resistor

• AEP, UK, E model

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.

TEST DISCS

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

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

SAFETY-RELATED COMPONENT WARNING!!

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

This label is located on the bottom of the chassis.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

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

CDX-M9900/M9905X

stand

Notes on CD-Rs (recordable CDs)/CD-RWs (rewritable CDs)

This unit can play the following discs:

Type of discs Label on the disc

Audio CD

MP3 files

• 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∗.

• You can play MP3 files recorded on CD-ROMs, CD-Rs, and

CD-RWs.

• A CD-R/CD-RW to which a session can be added can be played.

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

played on the audio CD player.

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 SERV O board (CN2) with the extension cable (Part No. J-2502-062-1).

NOTE FOR THE OPENING OF THE FRONT PANEL

In this set, the front panel is lowered to below the bottom face when it is opened. When servicing the set, place it on a stand having a height of about 2 cm.

FORCED FRONT P ANEL OPEN/CLOSE

The front panel is forced to OPEN/CLOSE at the timing that the power (ACC) is turned off. If the Z button for the front panel is not effective, the following method is used:

With the front panel open: The front panel is closed when A CC is

switched from ON to OFF edge.

With the front panel closed:The front panel is opened when ACC

is switched from ON to OFF edge.

NOTE FOR REPLACEMENT OF THE DIGITAL BOARD

When repairing, the complete DIGITAL board should be replaced since any parts in the DIGITAL board cannot be repaired.

MAIN BOARD CN401

J-2502-076-1

SERVO BOAR CN2

CDX-M9900/M9905X

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

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

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

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

1. GENERAL

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

Connections .............................................................................6

2. DISASSEMBLY

2-1. Front Panel Assy ................................................................. 8

2-2. Sub Panel Assy .................................................................... 8

2-3. CD Mechanism Block ......................................................... 9

2-4. Driving Section ................................................................... 9

2-5. Driven (F) Assy, Driving (F) Assy ....................................10

2-6. Digital Board ..................................................................... 10

2-7. Main Board ....................................................................... 11

2-8. Chassis (T) Sub Assy ........................................................11

2-9. Roller Arm Assy ................................................................12

2-10. Chassis (OP) Assy............................................................. 12

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

2-12. SL Motor Assy (M902) ..................................................... 13

2-13. LE Motor Assy (M903)..................................................... 14

2-14. Servo Board....................................................................... 14

3. DIAGRAMS

3-1. IC Pin Descriptions ...........................................................15

3-2. Block Diagram –CD Section–........................................... 20

3-3. Block Diagram –Main Section–........................................ 21

3-4. Block Diagram –Display Section–.................................... 22

3-5. Circuit Boards Location ....................................................23

3-6. Waveforms......................................................................... 23

3-7. Note for Printed Wiring Boards and

Schematic Diagrams .......................................................... 24

3-8. Printed Wiring Boards –CD Mechanism Section–............ 25

3-9. Schematic Diagram –CD Mechanism Section (1/2)– .......26

3-10. Schematic Diagram –CD Mechanism Section (2/2)– .......27

3-11. Printed Wiring Board –Main Section– .............................. 28

3-12. Schematic Diagram –Main Section (1/3)– ........................ 30

3-13. Schematic Diagram –Main Section (2/3)– ........................ 31

3-14. Schematic Diagram –Main Section (3/3)– ........................ 32

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

3-16. Printed Wiring Board –Display Section– .......................... 34

3-17. IC Block Diagrams............................................................ 35

4. EXPLODED VIEWS

4-1. Chassis Section ................................................................. 41

4-2. Main Board Section .......................................................... 42

4-3. Front Panel Section ...........................................................43

4-4. CD Mechanism Section (1) ............................................... 44

4-5. CD Mechanism Section (2) ............................................... 45

4-6. CD Mechanism Section (3) ............................................... 46

4-7. CD Mechanism Section (4) ............................................... 47

5. ELECTRICAL PARTS LIST ........................................ 48

SECTION 1

GENERAL

CDX-M9900/M9905X

This section is extracted from instruction manual.

CDX-M9900/M9905X

Connections

SECTION 2

DISASSEMBLY

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

SET

2-1. FRONT PANEL ASSY

(Page 8)

2-2. SUB PANEL ASSY

(Page 8)

2-3. CD MECHANISM BLOCK

(Page 9)

CDX-M9900/M9905X

2-4. DRIVING SECTION

(DB-A04) (Page 9)

2-7. MAIN BOARD

(Page 11)

2-5. DRIVEN (F) ASSY,

DRIVING (F) ASSY (Page 10)

2-11. OPTICAL PICK-UP

(Page 13)

2-6. DIGITAL BOARD

(Page 10)

2-8. CHASSIS (T) SUB ASSY

(Page 11)

2-9. ROLLER ARM ASSY

(Page 12)

2-10. CHASSIS (OP) ASSY

(Page 12)

2-12. SL MOTOR ASSY (M902)

(Page 13)

2-13. LE MOTOR ASSY (M903)

2-14. SERVO BOARD

(Page 14)

CDX-M9900/M9905X

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

2-1. FRONT PANEL ASSY

two

screws

(panel F)

cover (FPC)

CN201

(Take care not to pull the

flexible board excessively)

two

screws

(panel F)

2-2. SUB PANEL ASSY

two claws

front panel assy

two claws

two

screws

(+PTT 2.6

sub panel assy

2-3. CD MECHANISM BLOCK

)

screw

(+PTT 2.6

driving section (DB-F04)

CN701

screw

(+PTT 2.6

screw

(+PTT 2.6

CD mechanism block

CN401

bracket (CD)

CDX-M9900/M9905X

two

screws

(+PTT 2.6

2-4. DRIVING SECTION

screw

(+PTT 2.6

CDX-M9900/M9905X

2-5. DRIVEN (F) ASSY, DRIVING (F) ASSY

To install the assembly, turn the gear (cam LF) and

gear (cam LF)

align the detent with the holes

driving (F) assy

To install the assembly, turn the gear (cam RF) and align

the detent with the holes

gear (cam RF)

joint

2-6. DIGITAL BOARD

two

(+STP 2.6

CN802

screws

drive shaft assy

three ground point

(+PTT 2.6

driven (F) assy

screws

CN1302

DIGITAl bar

2-7. MAIN BOARD

)

ground point

(+PTT 2.6

screw

CN301

two

screws

(+PTT 2.6

ground point

(+PTT 2.6

insulating sheet

screw

MAIN board

CDX-M9900/M9905X

cord (AUX

screw

(+PTT 2.6

2-8. CHASSIS (T) SUB ASSY

two

screws

(+P 1.7

SENSOR board

claw

2.2)

claw

two

screws

(+P 1.7

2.2)

chassis (T) sub assy

CDX-M9900/M9905X

)

2-9. ROLLER ARM ASSY

worm wheel (RA)

spring (RAL)

washer (1.1 – 2.5)

roller arm assy

spring (RAR)

2-10. CHASSIS (OP) ASSY

compression spring (damper)

washer

gear (LE1)

lever (D)

chassis (OP) assy

CN1

two compression springs (damper

slider (R)

Remove the six solderings.

tension coil spring (KF)

2-11. OPTICAL PICK-UP

claw

chucking arm sub assy

tension coil spring (CHKG)

optical pick-up

CDX-M9900/M9905X

2-12. SL MOTOR ASSY (M902)

main shaft

rack (SL)

screw

(+B 1.4

SL motor assy (M902)

screw

(+P 1.4

1.8)

CDX-M9900/M9905X

2-13. LE MOTOR ASSY (M903)

two toothed lock

(+M 1.4

bracket (LEM)

screw

(+M 1.7

)

screws

2.5)

screw

(+P 1.7

2.2)

screw

(+M 1.7

woam (LEB) assy

2.5)

LE motor assy

(M903)

leaf spring (LE)

screw

(+M 1.7

bearing (LEB)

washer

gear (LE1)

lever (D)

2.5)

slider (R)

2-14. SERVO BOARD

Remove the eight solderings.

Remove the soldering.

SERVO board

Remove the three solderings.

toothed lock

(M 1.7)

screw

CN1

claw

SECTION 3

DIAGRAMS

3-1. IC PIN DESCRIPTIONS

• IC3 CXD3059BR (DIGITAL SERVO/DIGITAL SIGNAL PROCESSOR) (SERVO BOARD (1/2))

Pin No. Pin Name I/O Pin Description

1MIRR I/O Mirrer signal input/output 2 DFCT I/O Defect signal input/output 3 FOK I/O Focus OK signal input/output 4 VSS — Ground pin 5 LOCK I/O Not used in this set. (Open) 6 MDP O Spindle motor servo control signal output 7 SSTP I Disc most inner detection signal input 8IOVSS1 — Digital ground pin for I/O

9 SFDR O Sled drive signal output 10 SRDR O Sled drive signal output 11 TFDR O Tracking drive signal output 12 TRDR O Tracking drive signal output 13 FFDR O Focus drive signal output 14 FRDR O Focus drive signal output 15 IOVDD1 — Digital power supply pin for I/O 16 AVDD0 — Analog power supply pin 17 AVSS0 — Analog ground pin 18 NC — Not used. (Open) 19 E I E signal input 20 F I F signal input 21 TEI I Tracking error signal input from the DSSP block 22 TEO O Tracking error signal output to the RF amp block 23 FEI I Focus error signal input from the DSSP block 24 FEO O Focus error signal output to the RF amp block

25 VC I/O

26 A I A signal input 27 B I B signal input 28 C I C signal input 29 D I D signal input 30 NC — Not used. (Open) 31 AVDD4 — Analog power supply pin

32 RFDCO I/O

33 PDSENS I Reference voltage input for PD 34 AC SUM O RFAC suming amp signal output 35 EQ IN I Equalizer circuit signal input 36 LD O APC amp signal output 37 PD I APC amp signal input 38 NC — Not used. (Open) 39 RFC I EQ cut off frequency adjustment input 40 AVSS4 — Analog ground pin 41 RFACO O RFAC signal output 42 RFACI I RFAC signal input or EFM signal input 43 AVDD3 — Analog power supply pin 44 BIAS I Asymmetry circuit constant current input 45 ASYI I Asymmetry comparate voltage input 46 ASYO O EFM full swing signal output 47 VPCO O Charge pump output for wideband EFM PLL 48 VCTL I VCO2 control voltage input for wideband EFM PLL 49 AVSS3 — Analog ground pin

VC voltage output to the RF amp block Center voltage input from the DSSP block by command select

RFDC signal output RFDC signal input from the DSSP block by command select

CDX-M9900/M9905X

Pin No. Pin Name I/O Pin Description

50 CLTV I VCO1 control voltage input 51 FILO O Filter signal output for master PLL 52 FILI I Filter signal input for master PLL 53 PCO O Charge pump output for master PLL 54 AVDD5 — Analog power supply pin 55 DDVROUT O DC/DC converter output 56 DDVRSEN I DC/DC converter output voltage monitor signal input 57 AVSS5 — Analog ground pin 58 DDCR I Reset signal input for DC/DC converter 59 NC — Not used. (Open) 60 BCKI I D/A interface bit clock signal input 61 PCMDI I D/A interface serial data signal input 62 LRCKI I D/A interface LR clock signal input 63 LRCK O D/A interface LR clock signal output 64 VSS — Digital ground pin for internal 65 PCMD O D/A interface serial data signal output 66 BCK O D/A interface bit clock signal output 67 VDD — Digital power supply pin for internal 68 EMPH O Not used in this set. (Open) 69 EMPHI I Not used in this set. (Fixed at “L”.) 70 IOVDD2 — Digital power supply pin for I/O 71 DOUT O Digital out signal output

72, 73 TEST I Test pin Normally “L”.

74 IOVSS2 — Digital ground pin for I/O 75 NC — Not used in this set. (Open) 76 XVSS — Ground pin for master clock 77 XTAO O Crystal oscillation circuit output (16.9344 MHz) 78 XTAI I Crystal oscillation circuit input (16.9344 MHz) 79 XVDD — Power supply pin for master clock 80 AVDD1 — Analog power supply pin 81 AOUT1 O L channel analog signal output 82 VREFL O L channel reference voltage output 83 AVSS1 — Analog ground pin 84 AVSS2 — Analog ground pin 85 VREFR O R channel reference voltage output 86 AOUT2 O R channel analog signal output 87 AVDD2 — Analog power supply pin 88 NC — Not used. (Open) 89 IOVDD0 — Digital power supply pin for I/O 90 RMUT O R channel “0” detection flug output 91 LMUT O L channel “0” detection flug output 92 NC — Not used. (Open) 93 XTSL I X’tal select signal input 16.9344 MHz: “L”, 33.8688 MHz: “H” 94 IOVSS0 — Digital ground pin for I/O 95 XTACN I Oscillation circuit control input “H”: Oscillation start, “L”: Oscillation stop 96 SQSO O Sub 80 bit and PCM peak, level data signal output CD text data signal output 97 SQCK I Clock signal input for SQSO read out 98 SBSO O Sub P-W serial data signal output Not used in this set. (Open)

99 EXCK I Clock signal input for SBSO read out Not used in this set. (Open) 100 XRST I System reset signal input “L”: reset 101 SYSM I Mute signal input “H”: mute Not used in this set. (Fixed at “L”.) 102 DATA I Serial data signal input 103 VSS — Digital ground pin for internal

CDX-M9900/M9905X

Pin No. Pin Name I/O Pin Description

104 XLAT I Latch signal input 105 CLOK I Serial data transfer clock signal input 106 VDD — Digital power supply pin for internal 107 SENS O SENS signal output 108 SCLK I Clock signal input for SENS serial data read out 109 ATSK I/O Input/output for anti-shock 110 WFCK O WFCK signal output Not used in this set. (Open) 111 XUGF O XUGF signal output Not used in this set. (Open) 112 XPCK O XPCK signal output Not used in this set. (Open) 113 GFS O GFS signal output 114 C2PO O C2PO signal output 115 SCOR O Sub code sync signal output 116 VDD — Digital power supply pin for internal 117 C4M O 4.2336 MHz signal output Not used in this set. (Open) 118 WDCK O Word clock signal output Not used in this set. (Open) 119 COUT I/O Track count signal input/output Not used in this set. (Open) 120 NC — Not used. (Open)

CDX-M9900/M9905X

• IC501 MB90F474HPFV-G-178 (SYSTEM CONTROL) (MAIN BOARD (3/3)) (US, Canadian MODEL)

• IC501 MB90F474HPFV-G-179 (SYSTEM CONTROL) (MAIN BOARD (3/3)) (AEP, UK, E MODEL)

Pin No. Pin Name I/O Pin Description

1PGIPower supply OK detection signal input for DC-DC converter

2 FLASH P ON O

3 BEEP O BEEP signal output Used to PPG function. 4MOTOR ON O Motor power supply on signal output 5MOT + O Open/close motor control signal output (+) 6MOT – O Open/close motor control signal output (–) 7 LED ON O CD side illumination on signal output when front panel open 8 FSW IN I DC-DC converter oscillator frequency count signal input Used to input capture.

9 VSS — Ground pin 10 BOOST O Boost signal output 11 ENCSW1 I ENC switch 1 signal input 12 ENCSW2 I ENC switch 2 signal input

13 to 16 NCO O Not used in this set. (Open)

17 T.ROM SDA I/O Tuner EEPROM serial data signal input/output 18 T.ROM SCK O Tuner EEPROM serial clock signal output

19, 20 NCO O Not used in this set. (Open)

21 VCC5 — Power supply pin (+5 V) 22 NS MASK O Tuner noise mask signal output 23 TU MUTE O Tuner mute signal output 24 FLASHW I Flash write mode detection signal input 25 SH3SI/FLSSI I SH3 communication signal input (RXD)/Flash write data signal input 26 SH3SO/FLSSO O SH3 communication signal output (TXD)/Flash write data signal output

27 UNI AU O 28 VOLATT O Electronic volume mute signal output

29 DIAG I Condition signal input from power amplifier IC 30 AMP ON O AMP STB signal output Used to control of power amplifier IC. L: Off, H: On 31 I2CCKO O Serial clock signal output for tuner and electronic volume IC 32 I2CSIO I/O Serial data signal input/output for tuner and electronic volume IC 33 AVCC — Power supply pin (+3.3 V) 34 AVRH — Power supply pin (+3.3 V) 35 AVSS — Ground pin 36 KEYIN0 I key signal input Used to A/D port. 37 TEMP TR I Temperature detection signal input for front panel motor control Used to A/D port. 38 FP IDET I Front panel operation current detection signal input Used to A/D port. 39 QUALITY (RDS) I Tuner noise detection signal input Used to A/D port. 40 VSS — Ground pin 41 RC IN0 I Rotary commander signal input Used to A/D port. 42 VSM I S meter voltage signal input Used to A/D port.

43, 44 NCO O Not used in this set. (Open)

45 KEY ACK I Key acknowledge detection signal input H: On (Used to interruption port.) 46 DAVN (RDS) I RDS data block synchronization detection signal input

47, 48 MD0, MD1 — Connected to power supply pin (+5 V)

49 MD2 — Connected to ground pin 50 NCO O Not used in this set. (Open) 51 BU IN I Back up power supply detection signal input Used to interruption port.

52 to 54 NCO O Not used in this set. (Open)

55 MUTE CON I Mute condition signal input Used to interruption port. 56 UNISI I SONY BUS data signal input Used to serial port. 57 UNISO O SONY BUS data signal output Used to serial port.

Flash write communication signal change control signal output L: SH-3 communication, H: PC Ver. UP communication

BUS audio in/AUX audio in select control signal output H: SONY BUS audio, L: AUX audio

+ 40 hidden pages

Sony CDXM-9900 Service manual

TABLE OF CONTENTS

GENERAL

DISASSEMBLY

front panel assy

sub panel assy

CD mechanism block

MAIN board

chassis (T) sub assy

roller arm assy

chassis (OP) assy

optical pick-up

SL motor assy (M902)

SERVO board

DIAGRAMS