Hyundai H-MS1107 User manual

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
-
12V

5
V

3.3
V
~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
b
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
ad
j
ustmen
t
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.