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CDC-X237/X437
3-13. IC BLOCK DIAGRAMS
IC201 LA9241M (SERVO Board)
64
63
62
61
60
59
APC
RF DET
FIN2
1
VCA
2
FIN1
I/V
E
3
F
4
BAL
VCA
TB
5
TE-
6
TE
TE
7
TESI
8
T.SERVO & T. LOGIC
SCI
9
TH
10
TA
11
TD-
12
F.SERVO & F.LOGIC
TD
13
JP
14
TO
15
FD
16
17 18
19
20
IC203 LA6557H-TE-L (SERVO Board)
28
27
26
25
24
23
INPUT
MUTE
THERMAL
SHUTDOWN
OUTPUT
LEVEL SHIFT
LEVEL SHIFT
CONTROL
CH5
CH4
CH3,4,5
POWER
1
2
3
4
5
6
58
57
56
55
54
53
52
51
50
49
REF
48
NC
TBC
47
46
FSC
45
DGND
LSC
44
SLI
∞ COM
INTERFACE
43
SLC
42
RFS-
41
RFSM
RF AMP
40
CV+
CV-
39
38
SLOF
37
HFL
36
TES
35
TOFF
34
TGL
SPINDLE SERVO
SLED SERVO
33
JP+
21 22 23 24 25 26 27
28 29
30 31 32
TAB2
22
21
20
19
18
17
16
15
SIGNAL
SYSTEM
POWER
LEVEL SHIFT
LEVEL SHIFT
CH3
CH2
CH1
CH1,2
POWER
7
8
9
10
11
12
13
14
TAB1
IC401 LC75421M-TLM-E (MAIN Board)
DI
1
CE
2
VSS
3
LROUT
4
LFOUT
5
LFIN
6
LOUT
7
LSB
8
9
LBASS2
LBASS1 10
LTRE 11
LIN
12
LSELO
13
AUX(L)
14
TUN(L)
15
16
L3
CD(L)
17
L1
18
IC501 TA8272H (MAIN Board)
MUTE ST-BY
22
4
VDD
20
VDD
6
TAB
1
19
FR(-) GND FR(+)
28
28
+
CCB
INTERFACE
+
+
CONTROL
LOGIC
CONTROL
CIRCUIT
CIRCUIT
CIRCUIT
+
LVREF
RVREF
+
–
–
FR
RR
RL
FL
15
14
11
12
18
17
23
24
21
9
8
7
5
2
RR(-) GND RR(+)
RL(+) GND RL(-)
FL(-) GND FL(-)
36
CL
35
VDD
34
RROUT
33
RFOUT
+
32 RFIN
31
ROUT
RSB
30
29
RBASS2
28
RBASS1
27
RTRE
26 RIN
25
RSELO
24
AUX(R)
23
TUN(R)
22
R3
21
CD(R)
20
R1
19
VREF
10
V REF
13
PRE GND
16
AUX IN
DIAGNOSIS
25
OUT
3
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