Sony XESZ-50 Service manual

XES-Z50

SERVICE MANUAL

Ver 1.1 2001.09

• This set consists of the following units.

CHANGER UNIT CONTROL UNIT WIRELESS REMOTE COMMANDER (RM-X67) ROTARY REMOTE COMMANDER (RM-X66)

US Model

Canadian Model

Model Name Using Similar Mechanism NEW CD Mechanism Type Optical Pick-up Name KSS-400A

MG-110ES-132

SPECIFICATIONS

– Continued on next page –

DIGITAL REFERENCE SOUND SYSTEM

9-925-509-12 Sony Corporation

2001I0500-1 e Vehicle Company C 2001.9 Shinagawa Tec Service Manual Production Group

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C dur-

ing 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.

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.

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.

Laser Diode Properites

• Material: GaAlAs

• Wavelength: 780 nm

• Emission Duration: continuous

• Laser Output 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.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMA TIC 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.

CAUTION

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

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE ! 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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TABLE OF CONTENTS

1. SERVICING NOTES

1-1. Connection at Repair .................................................... 4

1-2. Front Panel Setting ....................................................... 4

1-3. Removal of Front Panel at Power Off........................... 4

2. GENERAL

Overview ...................................................................... 5

Precautions ................................................................... 5

Initial Settings............................................................... 6

Attaching/Detaching the Electrically

Operated Display Section ............................................. 7

Setting the Clock .......................................................... 8

Inserting CDs................................................................ 9

Using the Rotary Remote ............................................. 11

Using the Wireless Remote .......................................... 12

Menu Display/Lists ...................................................... 13

Listening to a CD.......................................................... 13

Playing Tracks Repeatedly ........................................... 14

Playing Tracks in Random Order ................................. 15

Selecting Specific Tracks for Playback ........................ 15

Setting Sound Effects for Each CD/MD....................... 16

Labeling a CD............................................................... 17

Locating a Disc by Title ............................................... 18

Viewing CD TEXT Information................................... 19

Listening to Radio ........................................................ 20

Presetting Radio Stations.............................................. 21

Specifying Monaural/Stereo Mode............................... 22

Receiving Only the Strongest Signals .......................... 23

Labeling Radio Stations ............................................... 23

Selecting a Station by Name......................................... 25

Set up Menu.................................................................. 25

AUX Menu ................................................................... 26

Selecting the Parametric Equalizer Pattern .................. 27

Selecting the Cross-over Network Pattern ................... 28

Listening to an Optional CD/MD Changer .................. 28

Precautions and Maintenance ....................................... 29

An Example of FIR Filter

(4095 tap) Frequency Response Table .......................... 30

Installing the Wireless Remote ..................................... 31

After Installation and Connections

Have Been Completed .................................................. 31

Installing the Rotary Remote........................................ 31

Installing the Control Unit............................................ 32

Installing the CD Changer ............................................ 34

Connection Diagram (3Way System) ........................... 35

System Configuration Examples .................................. 36

3. DISASSEMBLY....................................................... 37

4. MECHANICAL ADJUSTMENT......................... 45

7. DIAGRAMS

7-1. IC Pin Function Description ......................................... 52

7-2. IC201 (BA6247FP-Y) Motor Driver IC Operation ...... 76

7-3. Block Diagram

— Control Unit (TUNER Section) — .......................... 77

7-4. Block Diagram

— Control Unit (DISPLAY Section) — ....................... 79

7-5. Block Diagram — Control Unit

(BUS CONTROL/POWER SUPPLY Section) —........ 81

7-6. Block Diagram

— Changer Unit (CD Section (1/2)) — ....................... 83

7-7. Block Diagram

— Changer Unit (CD Section (2/2)) — ....................... 85

7-8. Block Diagram

— Changer Unit (MAIN Section (1/2)) — .................. 87

7-9. Block Diagram

— Changer Unit (MAIN Section (2/2)) — .................. 89

7-10. Block Diagram

— Changer Unit (D/A CONVERTER Section) — ...... 91

7-11. Block Diagram — Changer Unit

(BUS CONTROL/POWER SUPPLY Section) —........ 93

7-12. Printed Wiring Board

— Control Unit (MAIN Section) — ............................ 98

7-13. Schematic Diagram

— Control Unit (MAIN Section) — ............................ 101

7-14. Schematic Diagram — Control Unit (FRONT PANEL/

DESORPTION MECHANISM Section) — ................ 106

7-15. Printed Wiring Boards — Control Unit (FRONT PANEL/

DESORPTION MECHANISM Section) — ................ 111

7-16. Printed Wiring Boards

— Changer Unit (DRIVER Section) — ....................... 116

7-17. Schematic Diagram

— Changer Unit (DRIVER Section) — ....................... 119

7-18. Printed Wiring Boards

— Changer Unit (CHANGER Section) — .................. 123

7-19. Schematic Diagram

— Changer Unit (CHANGER Section) — .................. 127

7-20. Schematic Diagram

— Changer Unit (DSP Section) — .............................. 132

7-21. Printed Wiring Board

— Changer Unit (DSP Section) — .............................. 137

7-22. Printed Wiring Boards

— Changer Unit (DAC Section) —.............................. 142

7-23. Schematic Diagram

— Changer Unit (DAC Section) —.............................. 145

8. EXPLODED VIEWS .............................................. 170

9. ELECTRICAL PARTS LIST ............................... 183

5. TEST MODE ............................................................ 46

6. ELECTRICAL ADJUSTMENTS

Tuner Section................................................................ 46

CD Section.................................................................... 48

Display Section............................................................. 49

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SECTION 1

SERVICING NOTES

1-1.CONNECTION AT REPAIR

In repairing this set, connect as follows.

CN501 power supply connector

ACC

CONTROL

UNIT

CHANGER

UNIT

BATT GND

CN502 bus connector

bus cable

CN12 MASTER BUS CONTROL connector

+12V GND

CN11 POWER terminal

regulated dc

power supply

14.4 V dc

+ –

1-2.FRONT PANEL SETTING

In repairing the front panel, make a setting through the procedure give below.

Notes:

1.A flat cable and a switch flexible board connected between liquid crystal module and display board are easily broken, thus requiring extreme care when handling.

2.As only the removal procedure is given here, see “3. DISASSEMBLY” for details.

Setting:

1.Remove the front panel from control unit.

2.Remove the front panel (ornament) assembly. At this time, take care not to break the switch flexible board connected to the display board.

3.Remove the switch flexible board from front panel (ornament) assembly.

4.Under this condition, attach the front panel to the control unit, and supply the power.

5.After completion of attachment, turn the power OFF once, and tilt the liquid crystal module toward the front as shown below.

CONTROL UNIT

RELEASE button

liquid crystal module

DISPLAY board

SWITCH FLEXIBLE board