Sony MDS-EX770 User Manual

Sony Corporation
Home A&V Products Company
DHC-EX770MD
HCD-EX770
SERVICE MANUAL
MICROFILM
9-922-860-11
98D001648-1D
Printed in Japan ©1998.4
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

Sony MDS-EX770 Specifications

General

Brand	Sony
Model	MDS-EX770
Category	Stereo System
Language	English

Summary

SERVICE MANUAL

SPECIFICATIONS (for TA-EX66/EX77)

SECTION 1 GENERAL

SECTION 2 DISASSEMBLY

CASE, FRONT PANEL ASS’Y

Step-by-step guide for disassembling the case and front panel assembly.

BACK PANEL

CONNECTOR BOARD

SECTION 4 EXPLODED VIEWS

(2) MAIN SECTION

SECTION 5 ELECTRICAL PARTS LIST

ST-EX770 SERVICE MANUAL

CDP-EX77 SERVICE MANUAL

SERVICING NOTES

How to operate with a single unit.

Explains how to operate the set using external units or service tools.

SECTION 3 ELECTRICAL ADJUSTMENTS

AM SECTION

Procedure for adjusting the AM tuning level and related settings.

FM SECTION

Procedure for adjusting the FM tuning level and related settings.

SECTION 5 EXPLODED VIEWS

(2) FRONT PANEL SECTION

SECTION 6 ELECTRICAL PARTS LIST

CDP-EX770 SERVICE MANUAL

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

NOTES ON LASER DIODE EMISSION CHECK

CAUTION

SECTION 1 SERVICING NOTES

1-1. POWER SUPPLY DURING SERVICING

1-2. FLUORESCENT INDICATOR TUBE/BUTTONS/ JOG&LEDs CHECK MODE

SECTION 2 GENERAL

SECTION 3 DISASSEMBLY

CASE, FRONT PANEL SECTION

Step-by-step guide for disassembling the case and front panel section.

CASE, CHASSIS

LOADING PANEL

MECHANISM DECK

FRONT PANEL SECTION

BRACKET (T), (L), (R)

MAIN BOARD, CD MECHANISM DECK

BD BOARD

BASE UNIT

SUB CHASSIS

TRAY SECTION

SHUTTER ASS’Y

OVER WRITE HEAD

OPTICAL PICK-UP, SLED MOTOR

SLIDER COMPLETE ASS’Y

NOTE FOR INSTALLATION • SLIDER COMPLETE ASS’Y

SECTION 4 ELECTRICAL ADJUSTMENTS

Focus Bias Adjustment

Procedure for adjusting the focus bias for optimal performance.

S-Curve Check

Method for performing an S-curve check to verify optical pick-up performance.

Focus/Tracking Gain Adjustment (RV102, RV103)

Procedure for adjusting focus and tracking gain settings.

SECTION 6 EXPLODED VIEWS

SECTION 7 ELECTRICAL PARTS LIST

MDS-EX770 SERVICE MANUAL

MDS-EX77 SERVICE MANUAL

SPECIFICATIONS

Details the technical specifications for the MDS-EX77 mini disc deck.

SECTION 4 TEST MODE

4-1. PRECAUTIONS FOR USE OF TEST MODE

Important safety and operational precautions before using the test mode.

4-5. SELECTING THE TEST MODE

4-2. SETTING THE TEST MODE

Instructions on how to set up the unit for test mode operation.

4-3. RELEASING THE TEST MODE

Procedure to exit the test mode and return to normal operation.

4-4. BASIC OPERATIONS OF THE TEST MODE

SECTION 5 ELECTRICAL ADJUSTMENTS

5-1. PRECAUTIONS FOR CHECKING LASER DIODE EMISSION

Safety warning regarding direct viewing of laser diode emission.

5-2. PRECAUTIONS FOR USE OF OPTICAL PICK-UP (KMS-260A)

Handling precautions for the optical pick-up, especially regarding static electricity.

5-3. PRECAUTIONS FOR ADJUSTMENTS

General precautions and order for performing adjustments.

5-4. CREATING MO CONTINUOUSLY RECORDED DISC

5-5. TEMPERATURE COMPENSATION OFFSET ADJUSTMENT

Procedure for adjusting the temperature compensation offset.

5-6. LASER POWER ADJUSTMENT

Steps for adjusting the laser power output using a laser power meter.

5-7. TRAVERSE (E-F BALANCE) ADJUSTMENT

Procedure for adjusting the traverse (E-F balance) of the optical pick-up.

5-8. FOCUS BIAS ADJUSTMENT

Procedure for adjusting the focus bias for optimal performance.

5-9. ERROR RATE CHECK

Method for checking the error rate of CD and MO discs.

5-10. FOCUS BIAS CHECK

Procedure for checking the focus bias and tolerance.

SECTION 7 EXPLODED VIEWS

(1) CHASSIS SECTION

Exploded view of the chassis section, showing all major mechanical parts.

(2) MECHANISM DECK SECTION-1 (MDM-3A)

(3) MECHANISM DECK SECTION-2 (MDM-3A)

SECTION 8 ELECTRICAL PARTS LIST

BD BOARD

Comprehensive list of electrical parts specific to the BD board.

MAIN

Detailed listing of electrical parts for the main section of the unit.

PANEL

List of electrical parts found on the panel section of the unit.

REC VOL

Electrical parts list specifically for the record volume section.

SW

Electrical components related to switches and their part numbers.

SENSOR

List of electrical parts for the sensor components.

TABLE