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5-3. IC BLOCK DIAGRAMS
IC03 (CD DECORD BOARD) BA5941FP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
NC
–
+
Vcc
+ –
+ –
LEVEL SHIFT
LEVEL SHIFT
+
LEVEL SHIFT
–
+
LEVEL SHIFT
–
–
+
+ –
–
+
+ –
Vcc
MUTE
Vcc
1
2
4
6
8
11
12
13
14
3
5
7
9
10
IC02 (CD DECORD BOARD) TC9173P
GND
1
16
VDD
DRIVER
SERIAL I/O
MUTE
2
15
STB
CONTROL
C
T
CONTROL
3
14
CLOK
LATCH
XRST
4
13
DATA I
T.T(M)
5
12
DATA 0
DRIVER
POSI.1
6
11
LOADING
M-
POSI.2
7
LATCH
LATCH
10
LOADING
M+
T.T.SW
8
9
SENSOR
— 19 —
IC01 (CD DECORD BOARD) CXA1782BQ
36
35
34
33
32
31
30
29
28
27
26
25
+
–
+
+
+
+
+
LEVELS
APC
+
+
+
IIL
24 SENS
–
+
MIRR
RF IV AMP1
DFCT
TTL
23 C. OUT
–
22 XRST
TTL
RF IV AMP2
21 DATA
FE BIAS
37
TTL
• IIL DATA RESISTOR
• INPUT SHIFT RESISTOR
• ADDRESS DECODER
20 XLT
+
IIL
IIL
• OUTPUT DECODER
19 CLK
F
38
–
–
F IV AMP
TOG1-3
FS1-4
TG1-2
TM1-7
PS1-4
BAL1-3
18 VCC
E
39
–
FZC COMP
+
E IV AMP
EI
40
+
+
TE AMP
–
• TRACKING
• ISET
17 ISET
• PHASE
HPF COMP
LPF COMP
COMPENSATION
VEE
41
–
TM6
TG1
TEO
42
–
16 SL 0
TM5
+
15 SL M
TM4
–
TZC COMP
• FCS PHASE
LPFI
43
COMPENSATION
14 SL P
TM3
TM2
TEI
44
DFCT
FS1
ATSC
45
• WINDOW COMP
TM1
TM7
ATSC
13
TA O
FS2
TZC
46
TDFCT
47
DFCT
–
VC
48
FS4
1
2
3
4
5
6
7
8
9
10
11
12
— 20 —
IC102 (MAIN BOARD) LA1831
OSC/FMSD
OSC
AFC
AM RF
SMET
AM HPF
AF DET
MPX VCO
MPX IN
R OUT
L OUT
PL DET
24
23
22
21
20
19
18
17
16
15
14
13
ALC
AM
AM
AM
RF AMP
MUTE
DECORDER
OSC
MIX
AGC
STEREO SW
BUFFER
AM IF
AM DET
STEREO DRIVE
TRIG
AM/FM
FF
IF BUFE
COMP
PILOT
LEVEL
DET
DET
TUNING
S-CURVE
DRIVE
AM
AM/FM
VCO
SW
FM DET
PHASE
FM
DET
FM IF
REG
GND
VCC
1
2
3
4
5
6
7
8
9
10
11
12
FM IF
AM MIX
REG
AM IF
GND
TU LED
ST IND
FM DET
VCC
AM/FM
PH DET
PH DET
IC103 (MAIN BOARD) LC7218-ST
24
X OUT
23
VSS
22
PD2
REFERENCE
PHASE DETECTOR
XIN
1
DIVIDER
CHARGE PUMP
21
PD1
20
VDD
SWALLOW COUNTER
1 / 2
19
FM IN
1/16 . 1/17 BIT
12 BIT
18
AM IN
CE
2
PROGRAMMABLE DIVIDER
DI
3
CL
4
17
OUT 6
DO
5
16
HCTR
SYC
6
15
LCTR
SHIFT REGISTER
UNIVERSAL
COUNTER
IN0
7
LATCH
IN1
8
OUT0
9
14
OUT 5
OUT1
10
13
OUT 4
OUT2
11
OUT3
12
— 21 —
IC301 (MAIN BOARD) LC75392
LVROUT
1
30
RVROUT
LVRIN
2
29
RVRIN
+
LTOUT
3
28
RTOUT
–
LTCOM
4
27
RTCOM
LT4
5
26
RT4
LATCH
LT3
6
25
RT3
LT2
7
24
RT2
LT1
8
DECODER
23
RT1
L4
9
22
R4
L3
10
21
R3
SHIFT
REGISTER
L2
11
20
R2
L1
12
19
R1
VDD
13
18
VREF
CL
14
17
VSS
CONTROL
15
16
DI
CE
IC201 (MAIN BOARD) TA8189N
METAL
PRE
TAPE A
REC
REC
CH2/A CH2/B
NF
OUT
OUT
/TAPE B
VCC
CG
OUT
NF
IN
ALC
24
23
22
21
20
19
18
17
16
15
14
13
–
CH2
+
–
CH2
+
A/B
ALC
VREF1
IREF
VREF2
M/N
CH1
CH1
+
+
–
–
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
CH1/A CH1/B
NF
METAL
PRE
MIX
GND1
M/H
REC
NF
REC
GND
OUT
OUT
OUT
OUT
IN
— 22 —
HCD-GRX2/RX33
IC602 (PANEL BOARD) BU2092
18
17
16 15 14 13 12 11
10
12 BIT
CONTROL
SHIFT
CIRCUIT
REGISTER
OUTPUT
12 BIT
BUFFER
STORAGE
(OPEN DRAIN)
REGISTER
1 2
3
4
5 6 7 8 9
— 23 —
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