Akai A-211 User manual

SERVICE MANUAL
Model:
A1211
www.akai.ru
DVD PLAYER

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１
1. CONTENTS
Title
2. BLOCK DIAGRAM (CABLE CONNECTIONS)
1. CONTERTS
2
1
3
4
4
14
15
16
18
19
21
22
23
24
25
23
26
18
3. POWER SUPPLY
4. FUNCTIONAL DESCRITPIONS
4.1 DVD MPEG board
4.2 Front Panel
4.3 SMPS
4.4 DVD Driver
5.1 SWPS TRANSFORMER
5.2 SWPS CONTROLLER IC (TEA1523P)
5.3 SWPS PROGAMMABLE SHUNT RE
GULATOR (FAIRCHILD TL 431)
5.4 LINE FILTER(2 x 25mH)
6.1 POWER SUPPLY
6.2 FRONT PANEL
6.3 MPEG BOARD
6. FAULT TRACING FLOW CHART
7. COMPONENT LIST
5. DESCRIPTION OF THE INTEGRATED
CIRCUITS
Page

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2. BLOCK DIAGRAM (CABLE CONNECTIONS)

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3. POWER SUPPLY
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1 2 3 4
A B C D
4321
D C B ATitle
Number RevisionSize
A4
Date: Sheetof File: DrawnBy:
1
2
CN1 FUSE
T630mA220VAC
C1 0.22/275v
C2 0.22/275VAC
C3
471/275VAC
C4
471/275VAC
IN4007 IN4007 IN4007 IN4007
CE4
47u/400V
R4
0.47
R8 2.2K
C5
10n/630V
R2
47K
C22
104/50V
C24
104
D2 ER102
R1233
R16 270
R20 1K
D8
SB360
D1 HER157 D6
FR102
D4 FR102
D5FR102
D7
HER207
D9 9.1V
IC2
PC817
L3 20uH
L4 20uH
L5
20uH
L6 20uH
1 5 8 9
15 18 15 16 14 13 14 12 10
11
T1
12 34L1
FB1
CE14
470u/10V
CE9
10u/50V
CE8
100u/25V
CE7 10u/50V
CE11
220u/25V
CE3
470u/10V
CE6 100u/50V
CE10
1000u/25V
CE2
22u/50V
R10 470
R17 2.2K R21 2.2K
R18 680
R19 1K
R15 22
R11 2.2k
R9 470
R7 6.8K
C6
2.2n/AC400V
C10
470p/1KV
C13 0.1u/50V
C7
NC
C23
104P
IC3
TL431C
C15 0.1u/50V
C17 471/1KV C18
0.1u/50V
C14 470p/1KV
C19 102/1KV
CE13
2200u/10V
C20
0.1u/50V C21
0.1u/50V
F1 F2
-21V
-12V
+12V
D5V 1.8A
100mA
3.8V/0.2A
1 2 3 4 5 6
Jp4
1 2 3 4 5
JP2
F2 F1 -21V D5V
D5V D5V -12V +12V
SW1
RT1
NTC10D-11
V1.1
0.1A
1.2A
R14 1K
CE15
10u/25V
VR1
S07K275
1/1
220VAC
R6 4.7K
R5 75K
C16 680P
HGND
HGND
HGND
VCC
1
GND
2
RC
3
REG
4AUX 5
SOURCE 6
NC 7
DRAN 8
IC1
TEA1523
R33
330

4.1 DVD MPEG board
This board implements the back-end circuitry of a DVD player. It is composed of the following
subsystems:
* Microcontroller which does main control to all other sub-blocks of the system including user
interface, driver interface, audio/video output.
* Vaddis A/V Decoder IC decodes the bitstream coming from the DVD front-end drive, and
Optionally performs audio and video effects.
* Audio Codec
SPCA8200A AUD2
AUD1
AUD0
DVD-DSP
I/F
CD-DSP
I/F
SPDIF
16M
SDRAM
2-
CHANNEL
AUDIO
CODEC
Cntr/LFE
CVBS
R
G
B
Rear L/R
Rear L/R
SERIAL
EPROM
4M FLASH
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4. FUNCTIONAL DESCRIPTIONS
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