Sony HCD-MD313 Bedienungsanleitung

MINI Hi-Fi COMPONENT SYSTEM

MICROFILM

AEP Model

UK Model

E Model

SPECIFICATIONS

SERVICE MANUAL

HCD-MD313

HCD-MD313 is the amplifier, CD, MD and

tuner section in DHC-MD313.

Model Name Using Similar Mechanism HCD-T1

CD CD Mechanism Type

CDM13C-5BD19

Section Base Unit Name BU-5BD19

Optical Pick-up Name KSS-213B/K-N

Model Name Using Similar Mechanism MDS-MX1

MD MD Mechanism Type MDM-3D

Section Optical Pick-up Name KMS-260A/J1N

US and foreign patents licensed from Dolby

Laboratories Licensing Corporation.

– Continued on next page –

Amplifier section

European model:

DIN power output 25 + 25 watts (6 ohms at 1 kHz, DIN)

Continuous RMS power output

30+30 watts

(6 ohms at 1 kHz, 10% THD)

Music power output 50 +50 watts

Other models:

Peak music power output 400 watts

Continuous RMS power output

25 + 25 watts (6 ohms at 1 kHz, 10% THD)

Inputs TAPE IN (phono jacks):

voltage 250 mV/125 mV, impedance 47 kilohms

Outputs TAPE OUT (phono jacks):

voltage 250 mV impedance 1 kilohms

PHONES (stereo phone jack):

accepts headphones of 8 ohms or more.

SPEAKER: accepts impedance of 6 to 16 ohms.

CD player section

System Compact disc and digital audio system

Laser Semiconductor laser (λ= 780 nm)

Emission duration: continuous

Laser output Max. 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 with a 7 mm aperture.

Frequency response 2 Hz – 20 kHz

MD deck section

System MiniDisc digital audio system

Laser Semiconductor laser (λ= 780 nm)

Emission duration: continuous

Laser output Max. 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 with a 7 mm aperture.

Recording time 74 minutes max. (using MDW-74)

Sampling frequency 44.1 kHz

Frequency response 5 Hz to 20 kHz

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range 87.5 – 108.0 MHz (50 kHz step)

Aerial FM lead aerial

Aerial terminals 75 ohms unbalanced

Intermediate frequency 10.7 MHz

– 2 –

TABLE OF CONTENTS

Self-diagnosis Display..................................................... 2

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

2. GENERAL.................................................................... 5

3. DISASSEMBLY.......................................................... 8

4. TEST MODE .............................................................. 15

5. ELECTRICAL ADJUSTMENTS

MD Section...................................................................... 19

CD Section....................................................................... 24

6. DIAGRAMS

6-1. Block Diagrams

CD Section....................................................................... 27

MD Section...................................................................... 29

Main Section.................................................................... 31

6-2. Printed Wiring Board — CD Section — ......................... 33

6-3. Schematic Diagram — CD Section — ............................ 35

6-4. Printed Wiring Boards — MD Section —....................... 39

6-5. Schematic Diagram — MD Section — ........................... 41

6-6. Schematic Diagram — Main board — ............................ 46

6-7. Printed Wiring Boards — Main Section —..................... 51

6-8. Printed Wiring Board —Audio Section — ..................... 53

6-9. Schematic Diagram — Audio Section —........................ 55

6-10. Printed Wiring Boards — Panel/Power Section — ......... 58

6-11. Schematic Diagram — Panel/Power Section — ............. 61

6-12. IC Pin Function Description ............................................ 74

7. EXPLODED VIEWS ................................................ 82

8. ELECTRICAL PARTS LIST................................ 88

AM tuner section

Tuning range

European model:

MW: 522 – 1,611 kHz

(with the interval set at 9 kHz)

LW: 144 – 288 kHz

(with the interval set at 3 kHz)

Other models:

MW: 531–1,602 kHz

(with the interval set at 9 kHz)

SW: 5.95 – 17.90 MHz

(with the interval set at 10 kHz)

General

Power requirements

European model: 220 – 230 V AC, 50/60 Hz

Other models: 110 – 120 V or 220 – 240 V AC, 50/60 Hz

Power consumption: 80 watts

Dimensions

Amplifier/Tuner/MD/CD section:

Approx. 215 ×148 ×320 mm (w/h/d)

incl. projecting parts and controls

Mass

Amplifier/Tuner/MD/CD section:

Approx. 5.5 kg

Supplied accessories: Remote RM-MD313 (1)

Sony batteries (2)

AM loop aerial (1)

FM lead aerial (1)

WARRANTY CARD (1)

Design and specifications are subject to change without notice.

Self-diagnosis Display

– 3 –

SECTION 1

SERVICING NOTES

MODEL IDENTIFICATION

— BACK PANEL —

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.

NOTES ON HANDLING THE OPTICAL PICK-UP

BLOCK OR BASE UNIT

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 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.

CAUTION

Use of controls or adjustments or performance of proce-

dures other than those specified herein may result in haz-

ardous radiation exposure.

Laser component in this product is capable of emitting radiation

exceding the limit for Class 1.

Thisapplianceisclassifiedas

a CLASS 1 LASER product.

TheCLASS1LASERPROD-

UCT MARKING is located on

the rear exterior.

This caution la-

bel is located in-

side the unit.

Parts No.

MODEL PARTS No.

AEP, UK, German,

AED model 4-993-849-1π

Hong Kong, Malaysia,

Singapore model 4-993-849-2π

Note:

Be sure to connect all wires (including FFC) in the MD

section before applying power or ICs may be damaged.

• Abbreviation

AED: North European

– 4 –

DISC TABLE GETTING OUT PROCEDURE ON

THE POWER SUPPLY IS OFF

1. Insert the tweezers to a hole on bottom of the chassis as shown

a figure, then tern fully it toward direction 2.

2. Pull out the disc table.

disc table

cam

tweezers

FLUORESCENT INDICATOR TUBE/BUTTONS/JOG/

LEDs CHECK MODE

1. Presstwobuttons PLAY MODE and p(MD) simulatneously

for standby status.

2. Fluorescent indicator tube and LEDs are all turned on.

Press FUNCTION button, the fluorescent indicator tube dis-

plays pattern change to cycle.

Turning the VOLUME knob, and the each LED turned on to

order.

3. Press p(CD) button, and the Key check mode.

4. The fluorescent indicator tube displays “KEY=0 JOG=0”.

Each time a button is pressed, “KEY”=value increases.

Howerer, once a button is pressed, it is no longer taken into

account.

“JOG=” value increases like 1, 2, 3... if rotating VOLUME

knob in clock width, or it decreases like 0, 9, 8... if rotating in

cunter clock width.

5. To exit from this mode, press order all buttons (15 buttons), the

displays “KEY=OK”, and press any button, or disconnect the

power cord.

SUB CLOCK CHECK

1. Connect an oscilloscope to IC601 pin (¡ and ground of the

MAIN board.

2. Press two buttons PLAY MODE and §(MD)

Simultaneously, and the fluorescent indicator tube displays

“32.768 kHz (91)”.

3. To check the signal on oscilloscope becomes 32 kHz square

wave.

4. Press POWER button to exit.

TA CHECK

1. Press POWER button and system power On.

2. Press two buttons PLAY MODE and p(CD)

simultaneously, the fluorescent indicator tube displays “TA

Test”.

3. Rotation VOLUME knob in clock width a little, the fluores-

cent indicator tube displays “Volume MAX”.

Rotation VOLUME knob in cunterclock widh a little, the fluo-

rescent indicator tube displays “Volume MIN”.

4. Press CD-MD SYNC button, the fluorescent indicator tube

displays “BASS/TRE MAX”. Press REPEAT button, the fluo-

rescent indicator tube displays “BASS/TRE MIN”. Press

p(MD) button, the fluorescent indicator tube displays “ALL

FLAT”. Press p(CD) button, the fluorescent indicator tube

displays “SURROUND = ON”.

5. Press POWER button to exit, and system power off.

– 5 –

SECTION 2

GENERAL

1POWER button

2MD disk slot

3§(MD) button

4^(MD) button

5p(MD) button

6VOLUME control knob

7^(CD) button

8p(CD) button

9FUNCTION button

!º Fluorescent indicator tube

!¡ CD disc tray

!™ PHONES jack

!£ PLAY MODE • TUNING MODE button

!¢ REPEAT • STEREO/MONO button

!∞ §(CD) button

!§ TUNER/BAND button

!¶ CD-MD SYNC button

!• rREC button

!ª MD/CD =0• TUNER – button

@º MD/CD )+• TUNER + button

1TAPE OUTPUT pin jack

2TAPE INPUT pin jack

3AU BUS jack

4SPEAKER terminal

5VOLTAGE SELECTOR switch

(Except European models)

6AM ANTENNA terminal

7FM ANTENNA terminal

8SIGNAL GND terminal

LOCATION OF CNTROLS

– Front Panel –

– Rear Panel –

12345

@º!ª!•!¶!§!∞!¢!£!™

!º

!¡

123 4

Europian model

other models

– 6 –

– Remote controller – 1POWER button

2DBFB button

3MUSIC MENU button

4SCROLL button

5BAND button

6MD Pbutton

7MD pbutton

8MD +button

9CD Pbutton

!º CD pbutton

!¡ LOOP button

!™ CD +button

!£ TAPE pbutton

!¢ TAPE Pbutton

!∞ TAPE )button

!§ CLOCK/TIMER SET, button

!¶ DISPLAY button

!• + button

!ª VOL + button

@º VOL – button

@¡ SLEEP button

@™ FUNCTION button

@£ REPEAT button

@¢ PLAY MODE button

@∞ PRESET + buuton

@§ PRESET – button

@¶ MD (button

@• MD =button

@ª CD (button

#º CD =button

#¡ TAPE 9button

#™ TAPE (button

#£ TAPE 0button

#¢ CLOCK/TIMER SELECT button

#∞ EDIT button

#§ – button

#¶ CURSOR ?button

#• CURSOR /button

#ª ENTER/YES button

$º CANCEL/NO button

!º

!¡

!™

!£

!¢

!∞

!§

!¶

!•

!ª

@º

@¡

@™

@£

@¢

@∞

@§

@¶

@•

@ª

#º

#¡

#™

#£

#∞

#§

#¶

#•

#ª

$º

#¢

– 7 –

– 8 –

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

CASE

SECTION 3

DISASSEMBLY

FRONT PANEL/MD MECHANISM DECK SECTION

two screws

(case 3 TP2)

case

two screws

(case 3 TP2)

six screws (BVTT 3

MD mechanism section

front panel section

two screws

(BVTP 3

wire (flat type) (23 core)

(CN873)

claw

connector

(CN490)

wire (flat type) (25 core)

(CN820)

– 9 –

BACK PANEL, JACK BOARD

MD MECHANISM DECK (MDM-3D)

JACK board

wire (flat type) (15 core)

(CN401)

connector

(CN590)

connector

(CN402)

five claws

back panel

screw

(BVTP 3

four screws

(BVTP 3

10)

two screws

(BVTT 2

MD mechanism deck

(MDM-3D)

two screws

(BVTT 2

bracket (MD)

screw

(BVTP 3

10)

– 10 –

CD MECHANISM DECK (CDM13C-5BD19)

BD (MD) BOARD

bracket (CD)

two screws

(BVTP 3

two screws

(BVTP 3

wire (flat type) (19 core)

(CN801)

connector

(CN291)

two screws

(BVTP 3

CD mechanism deck

(CDM13C-5BD19)

two hooks

wire (flat type) (14 core)

(CN106)

OP relay flexible board

(CN101)

BD (MD) board

screw

(BVTP 2

wire (flat type) (25 core)

(CN107)

flexible board

(over write head)

(CN104)

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