Sanyo DC-DA70, Service Manual

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IC BLOCK DIAGRAM & DESCRIPTION
IC101 LA9241M (Servo Signal Processor) IC410 BA3314 ( MD Rec. Amplifier)
IC103 LA6541 (Pick-up Actuator & Motor Driver)
FSS
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
48
47
46
45
44
43
41
40
39
38
37
36
35
34
33
42
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Vcc1 LDS LDD BH1 PH1 LF2 VR REF1 Vcc2 DRF CE DAT CL CLK DEF
NC
TBC
FSC
DGND
SLI
SLC
RFS-
RFSM
CV+
CV-
SLOF
HFL
TES
TOFF
TGL
JP+
JP- SL+ SL- SLD SLEQ SPD SP- SPG SPI SP AGND FE- FE FA- FA FD-
FD
TO
JP
TD
TD-
TA
TH
SCI
TESI
TE
TE-
TB
F
E
FIN1
FIN2
APC
RF DET
REF
VCA
I/V
BAL VCA
INTER FACE
˚-com
SLC
RF Amp
TE
T.SERVO & T.LOGICK
F.SERVO & F.LOGICK
SPINDLE SERVO
SLED SERVO
g
IC412 TA8229K ( AF Main Amplifier)
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
Vcc Vref VIN4 VG4 Vo8 Vo7 GND Vo6 Vo5 VG3 VIN3 CD RES
Vcc Mute VIN1 VG1 Vo1 Vo2 GND Vo3 Vo4 VG2 VIN2 Reg OUT Reg IN
Vcc
11k 11k
11k 11k
Level
Sift
BTL
Driver
BTL
Driver
Level
Sift
RESET
Regulator
Level
Sift
BTL
Driver
Level
Sift
BTL
Driver
IC411 LC75392 (Pick-up Actuator & Motor Driver)
IC415 MM1453XF (Q Xpander with Spread Control)
1 8
2
3 4 5 6 7
17 18 16 15 14 13 12 11 10
V
CC
QF2 QF3 QF4 QF5 QF6 QF1
V
REF
L
IN
R
IN
PNR S/Q DET Q
IN
SPC R
OUT
L
OUT
9
GND
VIRTUAL AUDIO
QXpander
PROCESSOR
Bias
12
11
10
9
18
L1
(R1)
LT1
(RT1)
LT2
(RT2)
LT3
(RT3)
LT4
(RT4)
LTOUT
(RTOUT)
LVROUT
(RVROUT)
LTCOM
(RTCOM)
LVRIN
(RVRIN)
L2
(R2)
L3
(R3)
L4
(R4)
Vref
CL
DI
CE
CONTROL
SHIFT REGISTER
DECODER
LATCH
V
DD
V
SS
14
15
16
13 17
1,30
2,29
3,28 4,27 5,26 6,25
7,24 8,23