Ic Block Diagram & Description - Sanyo DC-DA2000 (XE) Service Manual

IC BLOCK DIAGRAM & DESCRIPTION
IC101 LA9242M-MPB (Servo Signal Processor)
Vcc1
64
FIN2
1
2
FIN1
3
E
4
F
5
TB
6
TE-
7
TE
8
TESI
9
SCH
10
TH
11
TA
TD- 12
13
TD
14
JP
15
TO
FD 16
IC442 TA8229K (Power Amplifier)
VCC2
8
11
IN-1
-
Ch-1
+
10
NF1
BIAS CIRCUIT
RIPPLE
9
THERMAL CUT-OFF
MINAL
PROTECTION
12
IN-2 -
Ch-2
+
13
NF2
14
PRE
GND1 GND2
LDS LDD BH1 PH1
63 62 61 60
APC
RF DET
VCA
I/V
BAL VCA
TE
T.SERVO & T.LOGIC
F.SERVO & F.LOGICK
17 18
FD- FA FA-
VCC1
4
6
B.S.1
5
OUT-1
POWER
7
GND
3
OUT-2
2
B.S.2
15
PRE
LF2 VR REF1 Vcc2 FSS
59 58 57 56 55
REF
INTER FACE
SPINDLE SERVO
19 20 21 22 23 24 25 26
FE FE- AGND SP SPI SPG SP-
IC446 NJM78L05A (Stabilized Power Supply)
R13
Q10
R14
Q15
Q11 R5
R15
Q9
R1
R16
Q1 Q2
R17
- 8 -
DRF CE DAT CL CLK DEF
54 53 52 51 50 49
48
47
46
45
44
SLC
43
42
RF Amp
41
40
39
38
37
36
35
34
33
SLED SERVO
27 28 29 30 31 32
SPD SLEQ SLD SL- SL+ JP-
Q6 Q5
R11
Q13
R9
Q8 Q7
R2 R4
Q4 R8
Q3
R3
NC
TBC
FSC
DGND
SLI
SLC
RFS-
RFSM
CV+
CV-
SLOF
HFL
TES
TOFF
TGL
JP+
3 V
I
Q12
Q14
R12
R10
1 Vo
R6
R7
GND
2