— 37 —
— 38 —
6-12. IC BLOCK DIAGRAMS
IC103 CXA2568M (BD BOARD)
IC551 BA6780 (MAIN BOARD (1/2))
IC601 LA5616 (MAIN BOARD (1/2))
IC302 CXA8055M (MAIN BOARD (2/2))
IC301 CXD8505BQ (MAIN BOARD (2/2))
11
12
10
VC
VC
VC
VC
VC
VC
VC
VCC
VCC
RF SUMMING AMP RF_EQ_AMP
ERROR AMP
FOCUS
TRACKING
ERROR AMP
VC BUFFER
VCC
VCC
VC
VC
VC
VC
VEE
VEE
VEE
VEE
VEE
VREF
13
14
15
6
5
1
2
3
4
7
8
9
16
19
20
21
22
23
24
18
17
HOLD
LD
PD
A
B
C
D
VEE
F
E
VC
AGCVTH
AGCCONT
VCC
LC/PD
LD_ON
HOLD_SW
RF_BOT
RFTC
RF_1
RFO
RFE
FE
TE
(50%/30%
OFF)
APC PD AMP
APC LD AMP
42
41
40
39
38
37
36
35
34
33
31
30
29
28
27
26
25
24
23
22
32
1
CIREF
ANALOG
VOLUME
CONTROL
CIRCUIT
CONSTANT
CONTROL
CIRCUIT
ECL
SWITCHING
CIRCUIT
ECL
SWITCHING
CIRCUIT
LOGIC
REFERENCE
VOLTAGE
CIRCUIT
NC
AGND
NC
IOR–
IOR+
C5
C6
C7R
AVEES
AVEES
C4R
C3
DVEE
C1R
DGND
1N1–R
1N1+R
NC
1N2+R
1N2–R
RIREF
VREF
VCNT
AGND
AV
CC
NC
IOL–
IOL+
C7L
AVEES
AVEES
C4L
DV
EE
DV
CC
C1L
DGND
1N1–L
1N1+L
NC
1N2+L
1N2–L
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
21
11
CONSTANT
CONTROL
CIRCUIT
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
34
33
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52 53 54 55 56 57 58 59 60
61 62 63 64
PLM
PLM
CLOCK
GENERATOR
TIMING
CIRCUIT
S/P
MODE
"O" DETECT
MUTE
CIRCUIT
ATT
FIR1
FIR2
FIR3
L. I. P.
(x 8)
IIR
ATT
FIR1
IIR
3RD ORDER
NOISE
SHAPER
FIR2
FIR3
L. I. P.
(x 8)
3RD ORDER
NOISE
SHAPER
AC, DC
DITHER
SYSM
ATT
SHIFT
LATCH
XINT
XDCK
XLRCK
DATA1
VSUD(D)R
DF VSS
VSUB(D)L
INAF
512FS0
256FS0
128FS0
I NV1
I NV01
I NV02
MUTE R
VSS2
R2(+)
VSS
R2(-)
VDD
VDD2
VSUB(A)R
XVSS
XVSS
X IN
X OUT
XVDD
VSUB(A)L
VDD2
VDD
L2(-)
L2(+)
VSS
VSS2
XSEL
SPLM
DFVDD1
DVDDR
VSUB(D)R
VSUB(C)R
VDD2
VDD
R1(-)
VSS
R1(+)
VSS2
201x16
MUTE L
TEST 1
TEST 2
DFVDD2
DV DDL
VSUB(D)L
VSUB(C)L
VDD2
VDD
L1(-)
L1(+)
VSS
VSS2
VIN2
FIN2
RIN2
CT2
VEE
FBIN-
FBIN+
OUT2+
OUT2-
VIN1
FIN1
REVERSIBLE DRIVER
FWD/REV CONTROLLER
COVERNER DRIVER
FWD/REV CONTROLLER
COVERNER
LOAD CURRENT
DETECTION
AMPLIFIER
COVERNER
OUTPUT
REFERENCE
VOLTAGE OUTPUT
LOW VOLTAGE
OUTPUT
RIN1
IOUT
VEE
VEE
VCC
VREF
VREG
VCC
OUT1+
+-
OUT1-
18
17
16
15
1
2
3
4
5
6
7
8
9
14
13
12
11
10
ON/OFF
CURRENT
LIMITER
VREF
OVERHEAT
PROTECT
RESET
GENERATOR
ON/OFF
3
6
9
2
5
8
1
4
7
10
ERROR
AMP
ERROR
AMP
VIN1
VO1
CN
EN1
GND
RES
CD
EN2
VO2
VIN2