Hyundai H-MS1107 Manuale utente

Service Manual

H-MS1107

rev. 1.01

Include: 2006-09-29

HYUNDAI Electronics Service Support Team RUS

Page 1

SERVICE MANUAL

DVD PLAYER

(For Sunplus)

Page 2

Contents

Front cover ..............................................................................01-01

Contents.................................................................................. 02-02

Block diagrams for the DVD player ...................................... 03-08

Major functions of the IC of the DVD player........................ 15-15

Maintenance procedures for the DVD player ........................ 16-23

Page 3

Block diagram for the operating principle of the DVD decoding board

+3.3V, +5V and ±12V stabilized power

supplies provided by the power board

Interface of the laser

head

RF preamplification

circuit

Digital servo processor

Control decoding single-chip

microcomputer

SPHE8200A control.

Feeding motor

Focusing coil

Trace searching

coil

Principal axis

motor

Disc tray ingress and

egress controller

Q12,Q13,Q24,Q25

Audio output CS4360

Disc tray motor

drive

Focusing, trace searching and feeding servo

drivers

CD5954

VF digital-analog converter

N/P system encoder

Audio D/A converter

Video output

Page 4

Block diagram for the power supply part of the DVD player

Faceplate power

supply



12V



3.3

~220V

Switch transformer

Switch tube control.

Filter by the filter capacitor after

diode rectification.

Power switch control

Switch tube 5L0380

Page 5

Block diagram for the faceplate part of the DVD player

Signals DATA, STB and

BCK of decoding board

output.

VFD display drive

Matrix circuit button

VFD screen

Faceplate

utton

AC 3.3V, +5V, -21V from power

board

Page 6

Block diagram for the karaoke part of the DVD player

Microphone input

Preamplifier 4558

AF amplifier

VOLUME

CONTROL OF THE

MICROPHONE

Two-channel output

AF signal

Page 7

Diagram of the servo mechanism of the DVD player

Principal axis motor

Laser beam

Optical detector

Object

lens

Focusing

ustmen

Tracking

control

Laser tube

Gliding mechanism of the light head

Focusing servo: makes the

focus match the information

side of a CD

Tracking servo: makes the light

beam track the sound track.

Feeding servo: moves the

whole light head mechanism.

APC: controls the constant

laser output.

Principle axis servo: Keeps CD in

CLV revolution.

Compact Disc

Page 8

Major functions of the IC feet

ED86 interface figure

Page 9

1. SPHE6300A function: RF single preamplifier.

2. SPHE8200A function: digital signal processor; central processing; MPEG

decoding, VF coder.

3. 5954 function: drive chip.

4. CS4360; audio D/A converter;

5. KM16x256K function: random dynamic processor.

6. 29F040A function: flash memory (FLASH).

Other ICs:

7. 16312 function: IC faceplate function control.

8. 4558 function: operation amplifier.

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