Sony HCD-EX770 Bedienungsanleitung

Sony Corporation

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DHC-EX770MD

HCD-EX770

SERVICE MANUAL

MICROFILM

9-922-860-11

98D001648-1D

Published by Quality Assurance Dept.

(Shibaura)

• DHC-EX770MD is composed of following models.

As for the service manual, it is issued for each component

model, then, please refer to it.

AEP Model

UK Model

PARTS LIST (ACCESSORIES & PACKING MATERIALS)

Part No. Description

1-475-883-11 COMMANDER, STANDARD (RM-EX77)

1-501-594-11 ANTENNA (FM)

1-501-721-11 ANTENNA (LOOP)

1-769-170-21 CORD (WITH CONNECTOR) (7P) (TA-ST-MDS-CDP)

1-775-373-11 CORD, CONNECTION (0.5m) (AUDIO)

1-775-924-11 CORD, LIGHT PLUG

3-860-163-13 MANUAL, INSTRUCTION (ENGLISH, SPANISH)

3-860-163-23 MANUAL, INSTRUCTION (FRENCH, DUTCH) (AEP)

3-860-163-33 MANUAL, INSTRUCTION (GERMAN, ITALIAN) (AEP)

3-860-143-43 MANUAL, INSTRUCTION (SWEDISH, PORTUGUESE) (AEP)

4-981-643-01 COVER, BATTERY (FOR RM-EX77)

4-992-237-01 CAP (PJ) (FOR TA-EX770)

MINI Hi-Fi COMPONENT SYSTEM

HCD-EX770 is composed of TA-EX770 and CDP-EX770

COMPONENTS MODEL NAME FOR DHC-EX770MD

AMPLIFIER TA-EX770

TUNER ST-EX770

CD PLAYER CDP-EX770

MINIDISC DECK MDS-EX770

TA-EX660/EX770

AEP Model

UK Model

SERVICE MANUAL

MICROFILM

Ref. No. Part No. Description

9-922-858-11 Sony Corporation

Home A&V Products Company

INTEGRATED STEREO AMPLIFIER

98D001648-1D

Published by Quality Assurance Dept.

(Shibaura)

TA-EX660/EX770 is the amplifier section in MHC-EX660 and DHC-EX770MD.

The mechanical and electorical specifications of TA-EX660/EX770 is almost same as

TA-EX66/EX77 AEP/UK model.

So this manual contains only the points which differ from TA-EX66/EX77.

For the informations not contained in this manual, please refer to the TA-EX66/EX77

service manuals (9-960-931- ) previously issued.

•PARTS LIST (The difference betweenTA-EX66/EX77 andTA-EX660/770)

Page

1 4-985-925-01 KNOB(JOG)

2 X-4947-837-1 KNOB(VOL)ASSY

4 X-4948-359-1 PANEL ASSY, FRONT(EX66)

4 X-4948-436-1 PANEL ASSY, FRONT(EX77:AEP, UK)

*58 4-985-927-11 PANEL, BACK(EX77:AEP,UK)

*58 4-985-927-41 PANEL, BACK(EX66:AEP,UK)

Ref. No. Part No. Description

––––––– ––––––– –––––––––

TA-EX66/EX77 TA-EX660/EX770

• Items marked “*” are not stocked since they

are seldom required for routine service.

Some delay should be anticipated when

ordering these items.

1 4-985-925-11 KNOB(JOG)

2 X-4949-863-1 KNOB(VOL)ASSY

4 X-4949-867-1 PANEL ASSY, FRONT(EX660)

4 X-4949-862-1 PANEL ASSY, FRONT(EX770)

*58 4-985-927-61 PANEL, BACK(EX770)

*58 4-985-927-71 PANEL, BACK(EX660)

MICROFILM

AEP Model

UK Model

E Model

SERVICE MANUAL

TA-EX66/EX77

INTEGRATED STEREO AMPLIFIER

TA-EX66/EX77is theamplifiersection

inMHC-EX66, DHC-EX77MD/MD77.

SPECIFICATIONS

Photo:TA-EX77 (AEP, UK model)

General

Power requirements

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

HK, SP model: 220 – 240 V AC, 50/60 Hz

Power consumption 125 watts

Design and specifications are subject to change without notice.

• Abbreviation

HK : Hong Kong

SP : Singapore

AEP, UK model:

DIN power output 45 + 45 watts (6 ohms at 1 kHz, DIN)

Continuous RMS power output

60 + 60 watts (6 ohms at 1kHz, 10% THD)

Music power output 105 + 105 watts

HK, SP model:

Continuous RMS power output

55 + 55 watts (6 ohms at 1 kHz, 5% THD)

Inputs

CD IN, MD IN (phono jacks): voltage 450 mV, impedance 47 kilohms

TUNER IN, TAPE IN, VIDEO1 IN, VIDEO2/AUX IN (TA-EX66/

EX77:AEP, UK model),VIDEO2 IN (TA-EX77: HK,SP model) (phono

jacks): voltage 250 mV, impedance 47 kilohms

MIX MIC (phone jack):

sensitivity 1 mV, impedance 10 kilohms or more

Outputs

MD OUT, TAPE OUT, VIDEO1 OUT (phono jacks):

voltage 250 mV, impedance 1 kilohm

PHONES (stereo phone jack):

accepts headphones of 6 ohms or more.

SPEAKER: accepts impedance of 6 to 16 ohms.

Dimensions (w/h/d) incl. projecting parts and controls:

Approx. 280 ×122.5 ×298 mm

Mass Approx. 5.3 kg

– 2 –

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.

TABLE OF CONTENTS

1. GENERAL ....................................................................3

2. DISASSEMBLY ...........................................................6

3. DIAGRAMS

3-1. IC Pin Function Description .............................................9

3-2. Schematic Diagram .........................................................14

3-3. Printed Wiring Boards .....................................................19

4. EXPLODEDVIEWS ................................................22

5. ELECTRICAL PARTS LIST .................................24

MODEL IDENTIFICATION

– BACK PANEL –

4-985-927-

TA-EX77 (AEP, UK model) : 1πCED/CEK

TA-EX77 (Singapore model) : 2πSP

TA-EX77 (Hong Kong model): 3πHK

TA-EX66 (AEP, UK model) : 4πCED/CEK

TA-EX66 (Singapore model) : 5πSP

– 3 –

SECTION 1

GENERAL This section is extracted

from instruction manual.

– 4 –

– 5 –

– 6 –

SECTION 2

DISASSEMBLY

•This set can be disassembled in the order shown below.

CONNECTOR BOARD

(Page 7)

BACK PANEL

(Page 7)

MAIN BOARD

(Page 8)

CASE, FRONT PANEL ASS’Y

(Page 6)

screw (BVTT3

two screws

(case 3 TP2)

two screws

(case 3 TP2)

case

two screws

(BVTP3

10)

two legs (F)

three screws

(BVTP3

10)

claw

two claws

front panel ass’y

CASE, FRONT PANEL ASS’Y

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

– 7 –

BACK PANEL

CONNECTOR BOARD

connector

(CN911)

connector

(CN504)

screw

(BVTP3

three screws

(BVTP3

10)

five screws

(BVTP3

10)

claw

Remove the back panel to

direction of the arrow

EX77

connector

(CN501)

Remove the connector (CN553) to

direction of the arrow

Remove the connector (CN554) to

direction of the arrow

Remove the connector board to

direction of the arrow

– 8 –

MAIN BOARD

two screws

(BVTP3

16)

four screws

(BVTT3

Remove the MAIN board to

direction of the arrow.

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