Akai A-1211 Service Manual
DVD PLAYER
Model:
A1211
SERVICE MANUAL
www.akai.ru
1. CONTENTS
ＤＶＤ Ｓｅｒｖｉｃｅ Ｍａｎｕａｌ
Title
1. CONTERTS
2. BLOCK DIAGRAM (CABLE CONNECTIONS)
3. POWER SUPPLY
4. FUNCTIONAL DESCRITPIONS
4.1 DVD MPEG board
4.2 Front Panel
4.3 SMPS
4.4 DVD Driver
5. DESCRIPTION OF THE INTEGRATED
CIRCUITS
5.1 SWPS TRANSFORMER
5.2 SWPS CONTROLLER IC (TEA1523P)
Page
1
2
3
4
4
14
15
16
18
18
19
5.3 SWPS PROGAMMABLE SHUNT RE
GULATOR (FAIRCHILD TL 431)
5.4 LINE FILTER(2 x 25mH)
6. FAULT TRACING FLOW CHART
6.1 POWER SUPPLY
6.2 FRONT PANEL
6.3 MPEG BOARD
7. COMPONENT LIST
21
22
23
23
24
25
26
１
ＤＶＤ Ｓｅｒｖｉｃｅ Ｍａｎｕａｌ
2. BLOCK DIAGRAM (CABLE CONNECTIONS)
２
ＤＶＤ Ｓｅｒｖｉｃｅ Ｍａｎｕａｌ
3. POWER SUPPLY
D
12345
JP2
F2F1-21V
4321
3.8V/0.2A
F2
R11
2.2k
R9
470
R10
470
D5V
0.1A
F1
-21V
D9
9.1V
C13
0.1u/50V
C
12345
Jp4
-12V
+12V
D5V
1.8A
1.2A
-12V
100mA
C15
0.1u/50V
R14
1K
+12V
C18
0.1u/50V
CE11
220u/25V
R16
B
6
D5V
D5V
270
C21
C20
A
1/1
V1.1
Number RevisionSize
A4
Title
0.1u/50V
0.1u/50V
Date: Sheet of
File: Drawn By:
CE9
10u/50V
CE7
10u/50V
L4
CE3
470u/10V
D4
FR102
T1
NC
C7
C6
20uH
L3
C10
470p/1KV
FR102
D5
11
12
10
1
47K
R2
2.2n/AC400V
IN4007
4
IN4007
RT1
NTC10D-11
D
20uH
D6
FR102
CE6
100u/50V
13
14
5
D1
HER157
10n/630V
C5
CE2
22u/50V
47u/400V
CE
IN4007
IN4007
C4
C3
34
L1
C2
0.22/275VAC
L5
20uH
CE10
1000u/25V
CE8
100u/25V
D7
HER207
C17
471/1KV
C14
470p/1KV
15
18
15
16
14
8
9
FB1
ER102
D2
HGND
471/275VAC
IC1
R1233
471/275VAC
12
C24
104
0.22/275v
C1
VR1
S07K275
FUSE
C
L6
20uH
D8
SB360
R5
75K
6NC7
8
DRAN
SOURCE
VCC1GND2RC3REG
6.8K
R7
T630mA220VAC
CE14
CE13
2200u/10V
470u/10V
R17
2.2K
R15
22
C19
102/1KV
R4
5
AUX
4
R8
C16 680P
SW1
HGND
0.47
TEA1523
104P
2.2K
C23
HGND
1
2
CN1
220VAC
B
330
R33
CE15
10u/25V
IC2
4.7K
R6
C22
R18
R20
680
R19
1K
PC817
R21
2.2K
104/50V
1K
IC3
TL431C
1 2 3 4
A
３
4. FUNCTIONAL DESCRIPTIONS
4.1 DVD MPEG board
ＤＶＤ Ｓｅｒｖｉｃｅ Ｍａｎｕａｌ
4M FLASH
SERIAL
EPROM
CVBS
R
G
B
16M
SDRAM
SPCA8200A
AUD2
AUD1
AUD0
2CHANNEL
AUDIO
Cntr/LFE
Rear L/R
Rear L/R
CODEC
DVD-DSP
I/F
CD-DSP
I/F
SPDIF
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
４
ＤＶＤ Ｓｅｒｖｉｃｅ Ｍａｎｕａｌ
５
ＤＶＤ Ｓｅｒｖｉｃｅ Ｍａｎｕａｌ
６
ＤＶＤ Ｓｅｒｖｉｃｅ Ｍａｎｕａｌ
７
ＤＶＤ Ｓｅｒｖｉｃｅ Ｍａｎｕａｌ
８
Loading...