Aiwa CX-VX5 Manuale utente

Ver 1.0 2004. 03

DVD Model Name Using Similar Mechanism NEW

Section DVD Mechanism Type CDM80-DVBU24

Optical Pick-up Name DBU-1

SERVICE MANUAL

AEP Model

UK Model

CX-VX5

Amplifier section

Stereo mode 60 W + 60 W (5 ohms at

1 kHz, THD 10 %)

Surround mode Front: 60 W + 60 W

Center*: 60 W

Surround*: 60 W + 60 W

(5 ohms at 1 kHz, THD

10 %)

Subwoofer*: 100 W

(3 ohms at 100 Hz, THD

10 %)

* Depending on the sound field settings and the source,

there may be no sound output.

Inputs VIDEO 1:

Sensitivity: 300 mV

Impedance: 50 kilohms

VIDEO 2:

Sensitivity: 300 mV

Impedance: 50 kilohms

MIC 1/MIC 2:

Sensitivity: 1 mV

Impedance: 10 kilohms

Outputs VIDEO 1 (AUDIO

OUT):

Voltage: 1 V

Impedance: 1 kilohm

Phones Accepts low-and high-

impedance headphones.

SPECIFICATIONS

DVD system

Laser Semiconductor laser

(DVD: λ=650 nm)

(CD: λ=780 nm)

Emission duration:

continuous

Signal format system NTSC or NTSC/PAL

Frequency response (at 2 CH STEREO mode)

DVD (PCM): 2 Hz to 22

kHz (±1.0 dB)

CD: 2 Hz to 20 kHz (±1.0

dB)

Harmonic distortion Less than 0.03 %

Sony Corporation

Home Audio Company

Published by Sony Engineering Corporation

9-877-635-01

2004C04-1

– Continued on next page –

DVD RECEIVER

• CX-VX5 are DVD receiver

in AVJ-X5.

CX-VX5

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE

WITH MARK 0ON 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.

Tuner section

System PLL quartz-locked digital

synthesizer system

FM tuner section

Tuning range 87.5 – 108.0 MHz (50 kHz

step)

Antenna FM wire antenna

Antenna terminals 75 ohms, unbalanced

Intermediate frequency 10.7 MHz

AM tuner section

Tuning range 531 – 1,602 kHz (with the

interval set at 9 kHz)

Antenna AM loop antenna

Intermediate frequency 450 kHz

Video section (VIDEO 1, 2, EURO AV)

Inputs Video: 1 Vp-p 75 ohms

Outputs Video: 1 Vp-p 75 ohms

Design and specifications are subject to change without

notice.

Notes on Chip Component Replacement

•Never reuse a disconnected chip component.

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

damaged by heat.

Flexible Circuit Board Repairing

•Keep the temperature of 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.

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 ironsusing a temperature regulator shouldbe set toabout

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 viscou-s (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.

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous

radiation exposure.

CX-VX5

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 break-down 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 objective lens.

Laser component in this product is capable

of emitting radiation exceeding the limit for

Class 1.

This appliance is

classified as a CLASS 1

LASER product. The

label is located on the

left side of the unit as

viewed from the front.

TABLE OF CONTENTS

CX-VX5

1. SERVICE POSITIONS

1-1. DVD Mechanism Block ......................................................5

1-2. MICON Board..................................................................... 5

2. GENERAL

Front Panel............................................................................... 6

Front Panel Display ................................................................. 7

Rear Panel................................................................................ 9

Remote................................................................................... 10

Language Code List............................................................... 11

DVD Setup Menu List ........................................................... 12

3. DISASSEMBLY

3-1. Top Cover .......................................................................... 14

3-2. Front Panel Assy ............................................................... 15

3-3. FL Board ........................................................................... 16

3-4. P-KEY Board, RM Board ................................................. 16

3-5. F-AV Board ....................................................................... 17

3-6. Rear Panel Section ............................................................ 17

3-7. MICON Board................................................................... 18

3-8. Mechanism Deck............................................................... 18

3-9. DMB03 Board ................................................................... 19

3-10. AMP Board ....................................................................... 19

3-11. POWER Board .................................................................. 20

3-12. Chassis (Top)..................................................................... 20

3-13. Lever (Loading-R/L) .........................................................21

3-14. Lever (Disc Stop), Disc Sensor Lever............................... 22

3-15. DRIVER Board ................................................................. 22

3-16. RF Board ........................................................................... 23

3-17. Optical Pick-up ................................................................. 23

3-18. Base Unit ........................................................................... 24

3-19. Lever (BU Lock) ............................................................... 24

3-20. Close Lever ....................................................................... 25

3-21. Lever (DIR), Gear (IDL-B) ............................................... 25

3-22. Gear (IDL-C)..................................................................... 26

4. TEST MODE ..................................................................... 27

5. ELECTRICAL ADJUSTMENT.................................... 35

6. DIAGRAMS

6-1. Circuit Boards Location .................................................... 36

6-2. Printed Wiring Board

–DVD Mechanism Section (1/2)– ..................................... 39

6-3. Schematic Diagram –DVD Mechanism Section (1/2)– .... 40

6-4. Printed Wiring Board

–DVD Mechanism Section (2/2)– ..................................... 41

6-5. Schematic Diagram –DVD Mechanism Section (2/2)– .... 41

6-6. Printed Wiring Board –DMB03 Section (1/2)– ................ 42

6-7. Printed Wiring Board –DMB03 Section (2/2)– ................ 43

6-8. Schematic Diagram –DMB03 Section (1/8)– ................... 44

6-9. Schematic Diagram –DMB03 Section (2/8)– ................... 45

6-10. Schematic Diagram –DMB03 Section (3/8)– ................... 46

6-11. Schematic Diagram –DMB03 Section (4/8)– ................... 47

6-12. Schematic Diagram –DMB03 Section (5/8)– ................... 48

6-13. Schematic Diagram –DMB03 Section (6/8)– ................... 49

6-14. Schematic Diagram –DMB03 Section (7/8)– ................... 50

6-15. Schematic Diagram –DMB03 Section (8/8)– ................... 51

6-16. Printed Wiring Boards –I/O Section (1/2)–....................... 52

6-17. Printed Wiring Boards –I/O Section (2/2)–....................... 53

6-18. Schematic Diagram –I/O Section (1/2)– ........................... 54

6-19. Schematic Diagram –I/O Section (2/2)– ........................... 55

6-20. Printed Wiring Board –F-AV Section–.............................. 56

6-21. Schematic Diagram –F-AV Section– ................................ 57

6-22. Printed Wiring Board –Micon Section– ............................ 58

6-23. Schematic Diagram –Micon Section–............................... 59

6-24. Printed Wiring Boards –Key Section– .............................. 60

6-25. Schematic Diagram –Key Section–................................... 61

6-26. Printed Wiring Board –FL Section–.................................. 62

6-27. Schematic Diagram –FL Section– .................................... 63

6-28. Printed Wiring Board –AMP Section (1/2)– ..................... 64

6-29. Printed Wiring Board –AMP Section (2/2)– ..................... 65

6-30. Schematic Diagram –AMP Section (1/2)–........................ 66

6-31. Schematic Diagram –AMP Section (2/2)–........................ 67

6-32. Printed Wiring Board –Power Section (1/2)– ................... 68

6-33. Printed Wiring Board –Power Section (2/2)– ................... 69

6-34. Schematic Diagram –Power Section– ............................... 70

7. EXPLODED VIEWS

7-1. Main Section ..................................................................... 71

7-2. Front Panel Section ........................................................... 72

7-3. Rear Panel Section ............................................................ 73

7-4. Chassis Section-1 .............................................................. 74

7-5. Chassis Section-2 .............................................................. 75

7-6. DVD Mechanism Deck Section-1..................................... 76

7-7. DVD Mechanism Deck Section-2..................................... 77

7-8. DVD Mechanism Deck Section-3..................................... 78

7-9. Base Unit Section .............................................................. 79

8. ELECTRICAL PARTS LIST ........................................ 80

CX-VX5

SECTION 1

SERVICE POSITIONS

1-1. DVD MECHANISM BLOCK

1-2. MICON BOARD

CX-VX5 SECTION 2

GENERAL This section is extracted

from instruction manual.

CX-VX5

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