Sony HCD-VX5A User manual

MICROFILM

SERVICE MANUAL

MINI Hi-Fi COMPONENT SYSTEM

E Model

HCD-VX5A/VX7A

Tourist Model

HCD-VX5AJ

SPECIFICATIONS

HCD-VX5A/VX5AJ/VX7A

Photo: HCD-VX7A

Dolby noise reduction manufactured under license

from Dolby Laboratories Licensing Corporation.

“DOLBY” and the double-D symbol aare trade-

marks of Dolby Laboratories Licensing Corporation.

HCD-VX5A/VX5AJ/VX7AistheAmplifier,

Video CD player, Tape Deck and Tuner

section in MHC-VX5A/VX5AJ/VX7A.

– Continued on next page –

Model Name Using Similar Mechanism HCD-GRX50/RXD7

CD Mechanism Type CDM38L-5BD34L

Base Unit Name BU-5BD34L

Optical Pick-up Name KSS-213D/Q-RP

Model Name Using Similar Mechanism HCD-GRX50/RXD7

Tape Transport Mechanism Type TCM-230AWR2

Section

Tape deck

Section

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1/11/16

Published in Heiloo, Holland.

– 2 –

TABLE OF CONTENTS

1. SERVICING NOTES ............................................... 3

2. GENERAL .................................................................. 6

3. DISASSEMBLY ........................................................ 10

4. TEST MODE............................................................. 13

5. MECHANICAL ADJUSTMENTS...................... 16

6. ELECTRICAL ADJUSTMENTS

DECK Section................................................................ 16

CD Section ..................................................................... 19

VIDEO Section .............................................................. 20

7. DIAGRAMS

7-1. Block Diagram – CD SERVO Section – ...................... 21

7-2. Block Diagram – AUDIO/VIDEO CD Section – ........ 23

7-3. Block Diagram – TAPE DECK Section –.................... 25

7-4. Block Diagram – MAIN Section –............................... 27

7-5. Block Diagram – DISPLAY/KEY CONTROL/

POWER SUPPLY Section – .......................................... 29

7-6. Note for Printed Wiring Boards and

Schematic Diagrams ...................................................... 31

7-7. Printed Wiring Board – BD Board– ............................. 33

7-8. Schematic Diagram – BD Board– ............................... 35

7-9. Schematic Diagram – VIDEO Board (1/2) – .............. 37

7-10. Schematic Diagram – VIDEO Board (2/2) – .............. 39

7-11. Printed Wiring Board –

VIDEO Board –............................................................. 41

7-12. Printed Wiring Boards – CD MOTOR Section –......... 45

7-13. Schematic Diagram – CD MOTOR Section – ............ 47

7-14. Printed Wiring Board – AUDIO Board – ..................... 49

7-15. Schematic Diagram – AUDIO Board – ....................... 51

7-16. Printed Wiring Board – LEAF SW Board –................. 53

7-17. Schematic Diagram – LEAF SW Board – .................. 53

7-18. Printed Wiring Board – MAIN Board – ....................... 55

7-19. Schematic Diagram – MAIN Board (1/4) – ................ 57

7-20. Schematic Diagram – MAIN Board (2/4) –................. 59

7-21. Schematic Diagram – MAIN Board (3/4) –................. 61

7-22. Schematic Diagram – MAIN Board (4/4) –................. 63

7-23. Printed Wiring Board – PANEL Board – ..................... 65

7-24. Schematic Diagram – PANEL Board – ........................ 67

7-25. Printed Wiring Board – CD SW Board – ..................... 69

7-26. Schematic Diagram – CD SW Board – ...................... 70

7-27. Printed Wiring Board

– TRANSFORMER Board– .......................................... 71

7-28. Schematic Diagram

– TRANSFORMER Board – ......................................... 71

7-29. Printed Wiring Board – SURROUND Board – ........... 73

7-30. Schematic Diagram – SURROUND Board – .............. 74

7-31. IC Pin Function Description .......................................... 80

8. EXPLODED VIEWS............................................... 90

9. ELECTRICAL PARTS LIST .............................. 99

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1/11/16

Published in Heiloo, Holland.

– 3 –

SECTION 1

SERVICING NOTES

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK !OR DOTTED

LINE WITH MARK !ON 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 PUB-

LISHED BY SONY.

SELF-DIAGNOSIS

This unit is equipped with a self-diagnosis function.

The function is used for diagnosing the conditions of the circuits

of the VIDEO board.

The circuits can be determined if normal or abnormal by the light-

ing of D502 of the VIDEO board.

Lighting of D502

When lit : Operates normally

Blinks repeatedly: The circuit may be faulty.

– VIDEO Board (Side A) –

D502

IC505

The laser diode in the optical pick-up block may suffer electro-

static break-down 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 emis-

sion, 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.

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 HANDLING THE OPTICAL PICK-UP

BLOCK OR BASE UNIT

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous ra-

diation exposure.

This appliance is classified as a CLASS 1 LASER product.

The CLASS 1 LASER PRODUCT MARKING is located on

the rear exterior.

Laser component in this product is capable of emitting radiation

exceeding the limit for Class 1.

The following caution label is located inside the unit.

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1/11/16

Published in Heiloo, Holland.

– 4 –

MODEL IDENTIFICATION

– Rear Panel –

PART No.

MODEL PART No.

VX5A : Saudi Arabia model 4-215-639-0π

VX5A : Malaysia and Singapore models 4-215-639-1π

VX5A : Taiwan model 4-215-639-2π

VX5A : E model 4-215-639-3π

VX5A : Thai model 4-215-639-4π

VX5A : Hong Kong model 4-215-639-5π

VX5A : Indonesia model 4-215-639-6π

VX5AJ: Saudi Arabia model 4-215-639-7π

VX5AJ: Tourist model 4-215-639-8π

VX5AJ: E model 4-215-639-9π

VX7A : Saudi Arabia model 4-215-640-0π

VX7A : Malaysia and Singapore models 4-215-640-1π

VX7A : E, Indonesia and Thai models 4-215-640-4π

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1/11/16

Published in Heiloo, Holland.

– 5 –

NOTE FOR INSTALLATION (ROTARY ENCODER)

Remove the Case.

Pull-out the disc tray.

Turn the cam to the

direction of arrow.

HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS’ OFF.

BU cam

Groove Section A

Note:When attaching the Base unit, Insert th

section A into the groove of BU cam.

Note:When attaching the BU cam,

engage the Rotary encoder

switch as shown in the figure.

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1/11/16

Published in Heiloo, Holland.

– 6 –

SECTION 2

GENERAL

• LOCATION OF CONTROLS

– FrontView –

12 3 4 5 6 7

9 0 !¡ !™8 !£

!¢

!∞

!§

!¶

!•

!ª

@º

@¡

@™

@£

@¢

@∞

@¶

@§

@•

#¢#£#™#¡#º@ª

11/u button

2(STANDBY) POWER SAVE, DEMO button

3DISC 1 button

4DISC 2 button

5DISC 3 button

6DISC SKIP, EX-CHANGE button

7§button

89TAPE A button and indicator

9(TAPE A button and indicator

09TAPE B button and indicator

!¡ (TAPE B button and indicator

!™ pbutton

!£ ^CD button and indicator

!¢ EFFECT indicator

!∞ SYNC EQ indicator

!§ FUNCTION button

!¶ ECHO LEVEL knob

!• MIC LEVEL knob

!ª MIC 1 jack

@º MIC 2 jack

@¡ VIDEO CD indicator

@™ PBC indicator

@£ PBC OFF indicator

@¢ TUNER BAND button

@∞ REC PAUSE/START button and indicator

@§ HI-DUB button

@¶ CD SYNC button

@• PHONE jack

@ª CD LOOP button

#º CD FLASH button

#¡ – 0button and indicator

#™ JOG dial and indicator

#£ + )button and indicator

#¢ VOLUME knob

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– 7 –

#∞ #ª

$§

$•

%º

%¡

%ª%¶%£

#∞ EFFECT button (VX7A)

EDIT/DIRECTION

TUNER MEMORY button (VX5A/VX5AJ)

#§ FILE SELECT button (VX7A)

PLAY MODE, DOLBY NR button

(VX5A/VX5AJ)

#¶ GEQ CONTROL button (VX7A)

REPEAT STEREO/MONO button

(VX5A/VX5AJ)

#• P FILE MEMORY button (VX7A)

FILE SELECT button (VX5A/VX5AJ)

#ª SELECT button

$º RETURN button

$¡ PREV button

$™ NEXT button

$£ CD NON-STOP button and indicator

$¢ KARAOKE PON/MPX button

$∞ PLAY MODE, DOLBY NR button

(VX7A)

$§ EDIT, DIRECTION, TUNER MEMORY

button (VX7A)

$¶ REPEAT, STEREO/MONO button (VX7A)

$• SYNC BASS H indicator

$ª SYNC BASS L indicator

%º SYNC EQ button

%¡ SYNC BASS button

%™ DISPLAY button

%£ CLOCK TIMER SET button

%¢ TIMER SELECT button and indicator

%∞ SPECTRUM ANALYZER button

%§ GROOVE button and indicator

%¶ ENTER/NEXT button and indicator

%• DBFB button

%ª CINEMA SPACE/SURROUND button

$¶

$∞

#§ #¶ #• $º$¡$™ $£ $¢

$ª

%•%§%¢%∞%™

– FrontView –

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1/11/16

Published in Heiloo, Holland.

– 8 –

– Rear View –

11S VIDEO jack

2SYSTEM SELECT switch

3VIDEO OUT jack

4CD DIGITAL OUT, OPTICAL connector

5VIDEO (AUDIO) IN jack

6MD IN jack

7MD OUT jack

8SUPER WOOFER jack

9FM ANTENNA terminals

0AM ANTENNA terminals

!¡ SURROUND SPEAKER terminals (VX7A)

!™ SPEAKER terminals

!£ VOLTAGE SELECTOR switch

(EXCEPT Thai model)

2 3

!£!™!¡

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1/11/16

Published in Heiloo, Holland.

– 9 –

This section is extracted from

instruction manual.

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1/11/16

Published in Heiloo, Holland.

– 10 –

COVER

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

SECTION 3

DISASSEMBLY

two screws

(case 3TP2) (3

screw

(case 3TP2) (3

12)

three screws

(BVTP3

cover

screw

(case 3TP2) (3

12)

two screws

(case 3TP2) (3

LOADING PANEL ASS’Y

loading panel ass’y

Pull-out

the disc tray.

Turn the cam-in the

direction of the arrow

www.freeservicemanuals.info

1/11/16

Published in Heiloo, Holland.

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