Akira DVD-2201 Service manual

DVD Player

Service Manual

2

MODEL:

DVD-2201

Model No.: DVD-2201
Version: 1.0

3

CONTENTS

BLOCK DIAGRAM ................................................................................................................................4

MPEG CARD IC MAIN FUNCTION, CONNECTION FUNCTION ....................................................8

REPAIR PROSEDURE.......................................................................................................................... 10

POWER BOARD................................................................................................................................... 16

CIRCUIT DIAGRAM............................................................................................................................ 18

EXPLODED VIEW & PART LIST........................................................................................................ 28

Model No.: DVD-2201
Version: 1.0

4

BLOCK DIAGRAM

MPEG Card

Laser, connector

control,

photoelectricity exam,

photoelectricity

convert

Focusing circle

Searching

circle

In-out circle

Head motor

Focusing, searching, in-out,
head driver, servo,

Rf preamp

SPHE6300A

Central processor

mpeg decode video

compose

SPHE8200A

D5954

Power connector AC±3.3 V

+5V-21V±9V

In-out control by

transistor D8050 make

double-stable touch

circuit

Video output connector,

video signal complexed by

SPHE8200A

Audio d/a transfer, 5.1 output

audio signal

CN.SW. PCM1606E

R.L.SR.SL.

Model No.: DVD-2201
Version: 1.0

Power Supply

5

AC 110V~230V

High-frequency wave choke

Switch power, wave

adjust 0380

Switch transformer

DIODE,

WAVEOUTPUT

±9V -21V

+5

3.3V

Precise regulator LM431 and

switch contro l , 817C

Model No.: DVD-2201
Version: 1.0

Panel Control

6

VFD display

VFD display drive keyboard rectangle

circuit cs16312

Panel key

MPEG card digital signal data

Power input ±3.3V

+5V –21V

stbck bclck

Model No.: DVD-2201
Version: 1.0

Karaoke

7

MIC INPUT

PREAMP

D4558

AUDIO OUTPUT

SIGNAL

MIC VOLUME

CONTROL

Model No.: DVD-2201
Version: 1.0

8

16

25

MPEG CARD IC MAIN FUNCTION, CONNECTION FUNCTION

19

20

9

Model No.: DVD-2201
Version: 1.0

9

1 SPHE8200A: Central processor, digital signal processing, MPEG-2

decoder, video synthesizer.
2 SPHE6300A: RF Signal processing, enlarge laser output signal.
3 D4954: Focusing. Searching, In-out, head driving.
4 STORAGE: Save DVD working procedure. (CPU)
5 Random storage
6 Random storage
7 CD-RW, save the content between people and DVD.
8 Audio D/A converter, make SPH8200A output audio data convert to

simulative audio signal, output L.R. SL SR. CN. SW signal. PCM1606E.

9-11 D4558: Operation amplifier, enlarge audio signal from PCM1606E,

radian up to 12V.

12 1.8V AC regulator IC, for SPH8200A ---- IC1117
13 3.3V AC regulator IC for SPH8200A ---- IC1117
14 74HC04D digital audio adjust.
15 MPEG card power supply connector is supplied by power board.

+5V ±9V ±3.3V -21V

16-17 Scart connector, all kinds video, audio simulative signal, TV control

signal.

18 24P connections, supply lens focusing, searching signal, receive the

transfer signal from CD disk.

19 Supply 3 lines of digital signal to panel, different voltage which required

by panel, receive remote control signal.

20 Supply In-Out, control voltage.
21 Karaoke connector, MIC 2.1 channel output, cut-singing control input.
22 27MHZ crystal, supply accurate time signal.
25 Optical output

26-27 Video output AV, S-Video, YUV RGB

29 Audio signal output, L.R. SL. SR. CN. SW

Model No.: DVD-2201
Version: 1.0