Sony MEX-5-DI Service manual

MEX-5DI

SERVICE MANUAL

Ver 1.0 2002. 04

• The tuner and CD sections have no adjustments.

SPECIFICATIONS

US Model

Canadian Model

AEP Model

UK Model

E Model

Model Name Using Similar Mechanism CDX-MP70 CD Drive Mechanism Type MG-550T-156 Optical Pick-up Name DAX-23E

CD player section

Signal-to-noise ratio 95 dB Frequency response 10 – 20,000 Hz Wow and flutter Below measurable limit

MS section

Signal-to-noise ratio 90 dB Frequency response 10 – 20,000 Hz

Tuner section

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

Harmonic distortion at 1 kHz

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

MW/LW (AEP, UK, 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

87.5 – 108.0 MHz (AEP, UK, E Model)

72 dB (mono)

0.6% (stereo),

0.3% (mono)

LW : 153 – 279 kHz

LW : 40 µV

MG-MS/FM/MW/LW COMPACT DISC PLAYER

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/AUX IN terminal Antenna input terminal

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 × 178 mm

(7 1/8 × 2 × 7 1/8 in.) (w/h/d)

Mounting dimensions Approx. 182 × 53 × 157 mm

(7 1/4 × 2 1/8 × 6 1/4 in.) (w/h/d)

– Continued on next page –

MG-MS/FM/AM COMPACT DISC PLAYER

US, Canadian Model

AEP, UK, E Model

9-874-009-01

Sony Corporation

e Vehicle Company Published by Sony Engineering Corporation

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Mass Approx. 1.7 kg

(3 lb. 12 oz.)

Supplied accessories Parts for installation and connections (1 set)

Front panel cover (1) Card remote commander RM-X131 (US, Canadian Model) Card remote commander RM-X132 (AEP, UK, E Model)

US and foreign patents licensed from Dolby Laboratories.

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.

CAUTION

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

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 Chip Component Replacement

• Never reuse a disconnected chip component.

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

aged by heat.

• AEP, UK model

This label is located on the bottom of the chassis.

SAFETY-RELATED COMPONENT WARNING!!

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

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

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.

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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.

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 OPEN/CLOSE button for the front panel is not effectiv e , 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.

• Connect the MAIN board (CN901) and the DIGITAL board (CN1012) with the extension cable (Part No. J-2502-068-1).

MAIN BOARD CN901

DIGITAL BOARD CN1012

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TABLE OF CONTENTS

1. GENERAL

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

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

2. DISASSEMBLY

2-1. Front Panel Assy ................................................................. 9

2-2. Sub Panel (CD) Assy........................................................... 9

2-3. CD Mechanism Block ....................................................... 10

2-4. Digital Board ..................................................................... 10

2-5. Cam Block Assy, Motor Block Assy................................. 11

2-6. Main Board ....................................................................... 11

2-7. Fan, Chassis Back ............................................................. 12

2-8. Mechanism Block (M) Assy.............................................. 12

2-9. Tray (UM) Assy ................................................................ 13

2-10. MD Assy ........................................................................... 13

2-11. Servo Board....................................................................... 14

2-12. Optical Pick-up Block ....................................................... 14

3. PHASE ALIGNMENT

3-1. Gear (Cam L) .................................................................... 15

3-2. Gear (Cam R) .................................................................... 15

4. DIAGRAMS

4-1. Note for Replacement of Digital Board ............................ 16

4-2. IC Pin Descriptions ........................................................... 17

4-3. Block Diagram –CD Section–........................................... 24

4-4. Block Diagram –Tuner Section–.......................................25

4-5. Block Diagram –Display Section–.................................... 26

4-6. Circuit Boards Location .................................................... 27

4-7. Printed Wiring Board –CD Mechanism Section– ............. 28

4-8. Schematic Diagram –CD Mechanism Section (1/2)– ....... 30

4-9. Schematic Diagram –CD Mechanism Section (2/2)– ....... 31

4-10. Printed Wiring Boards –Main Section– ............................ 32

4-11. Schematic Diagram –Main Section (1/4)– ........................ 34

4-12. Schematic Diagram –Main Section (2/4)– ........................ 35

4-13. Schematic Diagram –Main Section (3/4)– ........................ 36

4-14. Schematic Diagram –Main Section (4/4)– ........................ 37

4-15. Printed Wiring Board –Display Section– .......................... 38

4-16. Schematic Diagram –Display Section–............................. 39

5. EXPLODED VIEWS

5-1. Chassis Section ................................................................. 46

5-2. Digital Board Section ........................................................ 47

5-3. Cam Section ...................................................................... 48

5-4. Main Board Section .......................................................... 49

5-5. Front panel Assy Section................................................... 50

5-6. CD Mechanism Section (1) ............................................... 51

5-7. CD Mechanism Section (2) ............................................... 52

5-8. CD Mechanism Deck Section ........................................... 53

6. ELECTRICAL PARTS LIST ........................................ 54

SECTION 1

GENERAL

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This section is extracted from instruction manual.

(US, Canadian Model) (AEP, UK, E Model)

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Connections

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SECTION 2

DISASSEMBLY

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

SET

2-1. FRONT PANEL ASSY

(Page 9)

2-2. SUB PANEL (CD) ASSY

(Page 9)

2-3. CD MECHANISM BLOCK

(Page 10)

2-4. DIGITAL BOARD

(Page 10)

2-5. CAM BLOCK ASSY,

MOTOR BLOCK ASSY (Page 11)

2-6. MAIN BOARD

(Page 11)

2-7. FAN, CHASSIS BACK

(Page 12)

2-8. MECHANISM BLOCK (M) ASSY

(Page 12)

2-9. TRAY (UM) ASSY

(Page 13)

2-10. MD ASSY

(Page 13)

2-11. SERVO BOARD

(Page 14)

2-12. OPTICAL PICK-UP BLOCK

(Page 14)

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

2-1. FRONT PANEL ASSY

screws (thin head M1.4)

cover (FPC)

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front panel assy

2-2. SUB PANEL (CD) ASSY

PTT 2.6x6

claw

CN201

(Take care not to pull the

flexible board excessively)

PTT 2.6x6

screws (thin head M1.4)

bracket (cover)

PTT 2.6x6

sub panel (CD) assy

PTT 2.6x6

claw

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2-3. CD MECHANISM BLOCK

CD mechanism block

PTT 2.6x4

2-4. DIGITAL BOARD

PTT 2.6x6

ground point

CN401

DIGITAL boar

PTT 2.6x

CN901

2-5. CAM BLOCK ASSY, MOTOR BLOCK ASSY

PTT 2.6x6

motor block assy

CN701

cover (protection)

PTT 2.6x6

cam block assy

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2-6. MAIN BOARD

PTT 2.6x6

ground point

MAIN board

PTT 2.6x6

ground point

PTT 2.6x4

PTT 2.6x

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2-7. FAN, CHASSIS BACK

connector

bracket (fan)

fan

CN451

chassis (back)

cord

2-8. MECHANISM BLOCK (M) ASSY

chassis (ML) assy

shaft

PTT 2.6x6

bracket (tray)

PTT 2.6x16

PTT 2.6x6

PTT 2.6x

shaft

mechanical block (M) assy

P 1.7x1.8

chassis (MR)

2-9. TRAY (UM) ASSY

)

screw ( M1.7x2.5)

tray (UM) assy

screw ( M1.7x2.5

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2-10. MD ASSY

CN2

CN3

insulator

CN1

insulator

MD assy

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2-11. SERVO BOARD

SW1

SW2

SW3

SW4

screw (M 2x3.5), toothed loc

SERVO board

CN4

2-12. OPTICAL PICK-UP BLOCK

motor assy, sled (M2)

gear (B)

CN6

B 1.7x5

motor assy, turntable (M1)

chassis

retainer, shaf

pick-up block, optical

B 1.4x2.3

cover, gear

B 1.7x5

rack

shaft, standard

screw (feed) assy

P 1.4x3.5

SECTION 3

PHASE ALIGNMENT

3-1. GEAR (CAM L)

•Align the gear (cam L) position setting hole with the center mark on

the bracket before screwing the motor block assy to the mechanism chassis.

gear (cam L) position setting hole

center mark

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motor block assy

PTT 2.6x

3-2. GEAR (CAM R)

1 Align the gear (cam R) position setting hole with the center mark

on the bracket before screwing the cam block assy to the mechanism chassis.

2 Touch the gear (cam R) with fingers in the direction of rotation

and make sure that there is no phase difference with the R-side position setting hole.

ear (cam R) position setting hole

center mark

cam block ass

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SECTION 4

DIAGRAMS

4-1. NOTE FOR REPLACEMENT OF DIGITAL

BOARD

Parts in the digital board are not repairable and therefore the board is demounted and replaced. However , the connectors (CN1001, 1002, 1003 and 1012) are to be repaired. If any of the following symptoms appears, the MS connector (CN1001) should be replaced before the board is demounted and replaced:

1. Poor operations of MS connector Memory stick is not locked. Memory stick is not ejected.

2. Memory stick not recognized Even though a memory stick having music contents is inserted, no source screen will appear when the SOURCE button is pressed. Even though a memory stick having image contents is inserted, no image can be captured.

– DIGITAL BOARD (SIDE A) –

CN1001

– DIGITAL BOARD (SIDE B) –

CN1002

CN1003

159

260

150

CN1012

4-2. IC PIN DESCRIPTIONS

• IC5 CXD9684R-004 (AUDIO INTERFACE) (SERVO BOARD)

Pin No. Pin Name I/O Pin Description

1 RESET I Reset signal input 2MIMD I CPU interface mode select signal input Connect to VDD (+3 V) in this set. 3 AD0 I CPU interface chip select signal input 4 AD1 I CPU interface latch pulse signal input 5 MIDIO (I2C SDA) I/O CPU interface data signal input/output 6 MICK (I2C SCL) I CPU interface clock signal input 7 AD2 I CPU interface acknowledge signal input 8 VDDT (3.3V) — Power supply pin (+3.3 V)

9 SDD O Data signal output 10 AD3 O Bit signal output 11 AD4 O LR clock signal output 12 SDI0 I Data signal input 0 13 BCKIA I Bit clock signal input A 14 LRCKIA I LR clock signal input A 15 AD5 I Data signal input 1 16 CE I Bit clock signal input B 17 OE I LR clock signal input B 18 VDD (2.5V) — Power supply pin (+2.5 V) 19 STANDBY I Standby mode control signal input 20 VSS (2.5GND) — Ground pin 21 VSSL (2.5GND) — Ground pin for DAC Lch 22 VRAL — Reference voltage pin for DAC Lch 23 LO O DAC Lch signal output 24 VDAL (2.5V) — Power supply pin (+2.5 V) for DAC Lch 25 VDAR (2.5V) — Power supply pin (+2.5 V) for DAC Rch 26 RO O DAC Rch signal output 27 VRAR — Reference voltage pin for DAC Rch 28 VSSR (2.5GND) — Ground pin for DAC Rch 29 TESTP I Test pin 30 CKS I VCO select signal input Connect to VDD (+3 V) in this set. 31 AD12 O Address signal output 0 32 AD11 O Address signal output 1 33 AD10 O Address signal output 2 34 AD9 O Address signal output 3 35 VDDT (3.3V) — Power supply pin (+3.3 V) 36 AD8 O Address signal output 4 37 AD7 O Address signal output 5 38 AD6 O Address signal output 6 39 PO7 O Address signal output 7 40 VSS — Ground pin 41 AD13 I Flag signal input 0 42 AD14 I Flag signal input 1 43 WR I Flag signal input 2 44 AD16 I Flag signal input 3 45 AD15 I/O External interrupt signal input/output 46 IO0 I Data signal input 0 47 IO1 I Data signal input 1 48 VSS — Ground pin 49 IO2 I Data signal input 2 50 IO3 I Data signal input 3 51 IO4 I Data signal input 4

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Pin No. Pin Name I/O Pin Description

52 VDD (2.5V) — Power supply pin (+2.5 V) 53 IO5 I Data signal input 5 54 IO6 I Boot control signal input 55 IO7 I SPDIF signal input 56 VSSP — Ground pin 57 PDO O PLL phase detect signal output 58 VCOI I VCO control voltage signal input 59 VDDP — Power supply pin (+2.5 V) for VCO 60 CKI/ACKO I/O External clock signal input/audio clock signal output 61 VDDX (2.5V) — Power supply pin (+2.5 V) for crystal oscillator 62 X1 I Crystal oscillator (16.934 MHz) 63 X0 O Crystal oscillator (16.934 MHz) 64 VSSX — Ground pin

• IC11 HD6432238RWN20TEIV (CD SYSTEM CONTROL) (SERVO BOARD)

Pin No. Pin Name I/O Pin Description

1 TEST I Test mode select signal input

2 DEC XRST O DEC reset signal output

3 DEC STBY O DEC standby mode control signal output

4 XRDE O DRAM data read-out enable signal output

5 (NCO) O Not used. (Open)

6XWRE O DRAM write-in enable signal output

7 SCLK O SENS read-out serial clock signal output

8 SENS I SENS signal input

9 CD CLK O CD servo serial clock signal output 10 CD DAT O CD servo serial data signal output 11 CD LAT O CD servo latch signal output 12 CVCC — Power supply pin (+3.3 V) 13 DAC MUTE O DAC mute control signal output Not used in this set. (Open) 14 VSS — Ground pin 15 MUTE O Audio mute control signal output 16 XRST O CD servo reset signal output 17 XQOK O CD servo sub-code Q OK signal output 18 EMPH O Emphasis control signal output Not used in this set. (Open) 19 GFS I GFS signal input 20 FOK I FOK signal input 21 APC2 O APC control signal output 2 22 APC1 O APC control signal output 1 23 SPST O Spindle kick signal output 24 RW SEL O Not used. (Open) 25 RF SW O Not used. (Open) 26 SIZE I Not used. (Open) 27 D IN I Not used. (Open) 28 D OUT I Not used. (Open) 29 LIM SW I PU inner detect SW signal input 30 PSB O Mute signal output 31 PC TX O Bus data signal output 32 PC RX I Bus data signal input 33 IN SW I Not used. (Open) 34 LM LO O Not used. (Open) 35 LM EJ O Not used. (Open) 36 EJECT OK I Front panel open mode signal input Connect to VCC (+3 V) in this set. 37 CLOSE OK O Not used. (Open) 38 SCOR I Sub-code sync detect signal input 39 TRAY LAMP O Not used. (Open) 40 GRSCOR I DRAM controller sub-code sync detect signal input 41 HS O High speed signal 42 AVSS — Ground pin 43 TE BAL ADJ O TE balance adjustment signal output 44 DRAM O Not used. (Open) 45 D SW I Disc chucking detect signal input Connect to ground in this set. 46 TRAY CUR I Tray current detect signal input 47 KEY0 I Test mode key SW signal input 48 KEY1 I Test mode rotary SW signal input 49 (NCO) I Connect to ground in this set. 50 (NCO) I Connect to ground in this set. 51 TEMP I Tempareture detect signal input Connect to ground in this set. 52 (NCO) I Connect to ground in this set.

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Pin No. Pin Name I/O Pin Description

53 AVREF — Reference voltage pin (+3.3 V) for A/D converter 54 AVCC — Power supply pin (+3.3 V) for A/D converter 55 MD0 — CPU operation mode setting Connect to VCC (+3.3 V) in this set. 56 MD1 — CPU operation mode setting Connect to VCC (+3.3 V) in this set. 57 OSC2 — Not used. (Open) 58 OSC1 — Connect to ground in this set. 59 RSTX I CPU reset signal input 60 NMI O Connect to VCC (+3.3 V) in this set. 61 STBY — Connect to VCC (+3.3 V) in this set. 62 VCC — Power supply pin (+3.3 V) 63 XTAL — Crystal oscillator (12.288 MHz) 64 VSS — Ground pin 65 XTXAL — Crystal oscillator (12.288 MHz) 66 F WE — Flash write enable 67 MD2 — CPU operation mode setting 68 FL BOOT I Flash write-in mode select signal input 69 FL W O Flash write control signal output 70 CD ON O CD servo power control signal output 71 CDM ON O Not used. (Open) 72 DEC INT I DEC interrupt signal input 73 (NCO) O Not used. (Open) 74 LINK OFF O Link off signal output 75 EJECT KEY I Eject key signal input 76 UNI SO O SONY bus serial data signal output 77 UNI SI I SONY bus serial data signal input 78 UNI CK I SONY bus clock signal input 79 (NCO) O Not used. (Open) 80 SDA I/O I2C interface data signal input/output 81 SCL O I2C interface clock signal output

82, 83 (NCO) O Not used. (Open)

84 SQSO I Sub-code Q data signal input 85 SQCK O Sub-code Q read-out clock signal output 86 LED DAT O LED data signal output 87 LED CLK O LED clock signal output 88 LED LAT O LED latch signal output

89, 90 (NCO) O Not used. (Open)

91 BUS ON I Bus ON signal input 92 BU CHK I Back up voltage detect signal input 93 (NCO) O Not used. (Open) 94 (NCO) I Open/close end signal input

95, 96 (NCO) O Not used. (Open)

97 TEXT SEL I CD text function select signal input 98 ESP SEL I ESP function select signal input 99 CF SEL I Custom file function select signal input

100 DOUT SEL I Digital-out select signal input

• IC501 MB90F574PMT-G-MS100 (SYSTEM CONTROL) (MAIN BOARD) (US, Canadian MODEL)

• IC501 MB90F574PMT-G-MS101 (SYSTEM CONTROL) (MAIN BOARD) (AEP, UK, E MODEL)

Pin No. Pin Name I/O Pin Description

1 AB CLS O Digital AMP D/AB class select signal output

2 MS CHK I MS check signal input

3 MS SET I MS insert signal input

4 ADS01 O A-DSO effect select signal output

5 ADS02 O A-DSO effect select signal output

6ATT O System mute control signal output

7 SYS RST O System reset signal output

8 VCC — Power supply pin (+5 V)

9 (NCO) O Not used. (Open) 10 T.ROM SDA I/O Tuner unit EEPROM data signal input/output 11 T.ROM SCK O Tuner unit EEPROM clock signal output 12 SH3SI/FLSSI I SH3 RXD/Flash write-in data signal input 13 SH3SO/FLSSO O SH3 TXD/Flash write-in data signal output 14 BUS ON O Bus ON control signal output 15 BEEP O Beep signal output 16 TEL ATT I Telephone attenuate detect signal input 17 UNI SI I SONY bus serial data signal input 18 UNI SO O SONY bus serial data signal outpit 19 UNI CKO O SONY BUS serial clock signal output

20 to 23 (NCO) O Not used. (Open)

24 SIRCS I Wireless remote control data signal input 25 DP 19VI I DP1.9 V power voltage check signal input 26 DP 33VI I DP3.3 V power voltage check signal input 27 DP 25VI I DP2.5 V power voltage check signal input 28 DP 18VI I DP1.8 V power voltage check signal input

29, 30 (NCO) O Not used. (Open)

31 VOL ATT O Electronic volume attenuate control signal output 32 UNI AU O Bus audio-in/AUX audio-in select control signal output 33 VSS — Ground pin 34 C — Not used. (Open) 35 CDON IN I CD ON signal input 36 MS LED O CD window illumination control signal output 37 FSW SFT O OSC frequency shift signal output for DC-DC converter 38 DVCC — Power supply pin (+5 V) 39 DVSS — Ground pin 40 FAN O Fan control signal output 41 (NCO) O Not used. (Open) 42 AVCC — Power supply pin (+5 V) 43 AVRH — Power supply pin (+5 V) 44 AVRL — Ground pin 45 AVSS — Ground pin 46 KEY IN0 I Key input 0 47 TEMP (MECHA) I Tempareture detect signal input for front panel motor 48 TEMP (FAN) I Tempareture detect signal input for fan motor 49 FP IDET I Front panel motor current detect signal input 50 QUALITY (RDS) I Tuner noise detect signal input 51 TR IDET I Tray motor current detect signal input 52 (NCO) O Not used.(Open) 53 VSM I S-meter voltage detect signal input 54 VCC — Power supply pin (+5 V) 55 AMP ON O AMP ON control signal output

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