
16 Block Diagram
16.1. CD Servo Diagram
SA-
AK270EB/EG CD SERVO BLOCK DIAGRAM
CN7002
CN2801
3
20
CN7002 CN2801
7
CN7002 CN2801
5
18
CN7002 CN2801
8
CN7002 CN2801
6
CN7002 CN2801
4
16
15
17
19
LCH OUT
RCH OUT
B
CN7002 CN2801
CN7002 CN2801
16
CN7002 CN2801
15
17
7
8
6
TO MAIN
(2/2)
TO MAIN
(2/2)
TO MAIN
(2/2)
TO MAIN
(1/2)
CN7002 CN2801
21
CN7002 CN2801
2
CN7002 CN2801
19
2
21
4
VREF
VREF
VREF
M7302
SPINDLE
MOTOR
M7301
TRAVERSE
MOTOR
M
M
T-
T+
F+
F-
PHOTO DETECTOR
OPTICAL PICKUP
SEMICONDUCTOR
LASER
Q7601
LASER
POWER DRIVE
FOCUS COIL
TRACKING
COIL
B
B
B
B
B
A
B
F
E
MN6627954MA
SERVO PROCESSOR/
DIGITAL SIGNAL
PROCESSOR/
DIGITAL FILTER
D/A CONVERTER
IC7001
A, B, C, D, E, F
X7201
IC7002
BA5948FPE2
IN4
27
TRP
IN3
28
FOP
IN2
1
TRVP
IN1
3
SPOUT
PC2
2
VREF
26
D4-
18
D4+
17
D3-
16
D3+
15
D2+
14
D2-
13
D1+
12
D1-
11
PC1
4
PC
MUTE
[CH1]
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
[CH3]
[CH4]
[CH2]
[CH1]
MUTE
[CH2]
4 CH DRIVE
TRV+
TRV-
SP-
SP+
79
81
80
70
69 67 68
51 53 52 54
55
82
61
72
47
35~40
31
41
49
48
45
43
32
34
44
22
21
24
25
23
29
30
66
57
AVSS1
TX
SRVMON1
SRVMON0
NTEST
NRST
AVDD2
AVSS2
ARFFB
ARFF
ARFOUT
ARFDC
RFOUT
RFIN
CENV
CTRCRS
OSCIN
VREF
RFENV
PC
SPOUT
TRVP
TRP
FOP
PD
A,B,C,D,E,F
NSRVMONON
REGON
MDATA
ARFIN
IREF
DSLF
PLLF
PLLFO
TXTCK
(SBCK)
PRAMVDD33
PRAMVSS33
D0~D15
A0~A11
BA0,BA1
TXTD
DQSY
(SUBC)
(TXNCLDCK)
BLKCK
FLAG
65
71
20
18
83~92,94~99
1~7,11~15
16,17
NWE,NCAS
8,9
63
64
62
NRAS,SDRCK
(LRCK)
(BCLK)
(SRDATA)
EXT0
EXT2
EXT1
10,100
(DVDD2)
76
MCLK
MLD
STAT
(PMCK)
(SMCK)
X2
X1
AVDD1
OUTR
OUTL
58
IOVDD1
77
IOVDD2
27
DRVDD
93
DVDD1
28
DVDD2
76
DVSS1
26
DVSS2
78
DVSS3
60
59 56
46
50
CMOS
RF
AMPLIFIER
TIMING
GENERATOR
[GEN]
SUBCODE
INTERFACE
[DEMECC]
1Mbit
DRAM
REGULATOR
EFM DEMODUALTION
SYNC INTERPOLATION
CIRC ECC
CDROM ECC
[DEMECC]
MICRO COMPUTER
INTERFACE
[MCIF]
DSL/PLL/VCO
[DSLPLL]
SPINDLE
CPU
[DSV]
SERVO
CPU
[DSV]
CIRC RAM
BUS CONTROL UNIT
[BCU]
MP3/WMA
DECORDER
FS
CONVERTER
[FSC]
SERIAL OUTPUT
INTERFACE
[DAO]
DIGITAL FILTER
1bitDAC
PWM LOGIC
[DF, MASH]
ANALOG
LOWPASS
FILTER
DIGITAL
OUT
OUTPUT
PORT
A/D
CONVERTER
MLD
MCLK
MDATA
STAT
3.3V
3.3V 3.3V 3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
S7201
REST
SWITCH
LD
42
TO MAIN
(2/2)
TO MAIN
(2/2)
SA-AK270EB / SA-AK270EG
71
Summary of Contents for SA-AK270EB
Page 8: ...8 SA AK270EB SA AK270EG ...
Page 11: ...6 Operation Procedures 6 1 Main Unit Key Buttons Operations 11 SA AK270EB SA AK270EG ...
Page 12: ...6 2 Remote Control Key Buttons Operations 12 SA AK270EB SA AK270EG ...
Page 13: ...13 SA AK270EB SA AK270EG ...
Page 15: ...7 2 Connecting and Playing a USB Mass Storage Class Device 15 SA AK270EB SA AK270EG ...
Page 17: ...8 2 Service Mode Table 1 17 SA AK270EB SA AK270EG ...
Page 18: ...8 3 Service Mode Table 2 18 SA AK270EB SA AK270EG ...
Page 22: ...8 5 2 Error Code Table For CD Changer 22 SA AK270EB SA AK270EG ...
Page 26: ...26 SA AK270EB SA AK270EG ...
Page 28: ...9 3 Main Components and P C B Location 28 SA AK270EB SA AK270EG ...
Page 39: ...39 SA AK270EB SA AK270EG ...
Page 60: ...Step 13 Service AC Inlet P C B SMPS P C B respectively 60 SA AK270EB SA AK270EG ...
Page 65: ...14 1 2 Main P C B 65 SA AK270EB SA AK270EG ...
Page 66: ...14 1 3 SMPS P C B D Amp P C B Panel P C B 66 SA AK270EB SA AK270EG ...
Page 67: ...14 1 4 Deck P C B Deck Mechanism P C B USB P C B 67 SA AK270EB SA AK270EG ...
Page 68: ...14 2 Waveform Chart 68 SA AK270EB SA AK270EG ...
Page 70: ...SA AK270EB SA AK270EG 70 ...
Page 78: ...SA AK270EB SA AK270EG 78 ...
Page 80: ...80 SA AK270EB SA AK270EG ...
Page 102: ...SA AK270EB SA AK270EG 102 ...
Page 106: ...106 SA AK270EB SA AK270EG ...
Page 107: ...22 Exploded Views 22 1 Cabinet Parts Location SA AK270EB SA AK270EG 107 ...
Page 108: ...SA AK270EB SA AK270EG 108 ...
Page 109: ...22 2 Deck Mechanism Parts Locations RAA4407 S SA AK270EB SA AK270EG 109 ...