Sony XR-CA420N Service Manual ▷ View online
XR-CA420N
13
13
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC1
TB2118F-EL-S
VDD
AMP
AMP
AMP
VDD2
1
2
3 4 5 6
7
8
9
10
24 23
22 21
20
19
18
17
16 15
11
12
14 13
XO
OSC
CE
DIN
CK
DOUT
SR
I/O-1
I/O-2
OUT-1
OUT-2
VDD2
IFC
VDD
FM IN
AM IN
D-GND
FM CP OUT
VT
AM CP OUT
VCC
REG
A-GND
XI
SERIAL
INTERFACE
I/O
PORT
OSCILLATOR
ON/OFF
BUFFER
REFERENCE
DIVIDER
PHASE
COMPARATOR
20BIT
IF COUNTER
PRESCALLER
12BIT
PROGRAMMABLE
COUNTER
+
–
REGULATOR
18BIT
18BIT
22BIT
40BIT SHIFT
REGISTER
REF
VCC
SEEK/RECP
SEEK/RECP
+
–
SIG
4BIT SWALLOW
COUNTER
OUTPUT
PORT
+
+
IC301
CXA2509AQ-T4
+
–
–
+
–
+
–
+
–
+ –
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
21
22
23
26
27
28
29
30
31
32
33
34
37
38
39
40
24
25
PBFB1
PBRIN1
PBREF1
PBFIN1
35
36
PBGND
VCT
PBFIN2
PBREF2
PBRIN2
PBFB2
PBEQ1
PBOUT1
VCC
TAPEIN1
AUXIN1
MSLPF
LINEOUT1
NC
NC
G2FB
G1FB
MSTC
DGND
MSOUT
NC
NC
INSW
TAPESW
MSMODE
DRSW
MSSW
NC
NC
LINEOUT2
DIREF
AUXIN2
TAPEIN2
PBEQ2
PBOUT2
GND
F2
120
µ
/70
µ
X1
X1
VCT
+
F1
120
µ
/70
µ
24dB
F3
LPF
VCC
DETECT
MS ON/
OFF
FWD/RVS
TAPE EQ
TAPE/AUX
NR BIAS
24dB
MS
MODE
T2
T1
IC330
LC75421M-TLM
36
35 34 33
1
2
CCB
INTERFACE
CONTROL
CIRCUIT
LOGIC
CIRCUIT
CONTROL
CIRCUIT
+
–
–
+
–
–
32 31
+
–
30
29
28
+
–
27 26 25
24 23 22 21 20 19
+
–
+
–
–
+
–
–
R VREF
4
5
+
–
+
–
6
7
+
–
–
8
9
10
+
–
–
11 12 13
14 15 16 17 18
+
–
–
+
–
+
–
L VREF
3
LROUT
LFOUT
LFIN
LOUT
LSB
LBASS2
LBASS1
LTRE
LIN
LSELO
L5
L4
L3
L2
L1
VSS
VDD
RROUT
RFOUT
RFIN
ROUT
RSB
RBASS2
RBASS1
RTRE
RIN
RSELO
R5
R4
R3
R2
R1
VREF
CL
DI
CE
IC351
LB1930M-TLM
1
2
2
3
4
5
6
7
8
9
10
VCC
IN2
S-GND
IN1
NC
NC
OUT2
NC
P-GND
OUT1
CONTROL
CIRCUIT
MOTOR
DRIVE
CIRCUIT
BUFFER
BUFFER
IC581
BA8270F-E2
1
2
3
4
5
5
6
7
8
9
10
14
13
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUS ON
RST
BATT
CLK
VREF
DATA
GND
VCC
RST
BUS ON
BUS ON
CLK IN
BU IN
DATA IN
DATA OUT
IC611
BA3918-V2
+
–
+
–
+
–
+
–
OVER VOLTAGE
PROTECT
REGULATOR
1
2 3 4
5
6
7
8
9
10
12
11
NC
MODE2
MODE1
STB
VDD
AMP
VCC
ANT
COM
AM
FM
GND
XR-CA420N
14
14
(Page 18)
6-2.
PRINTED WIRING BOARD – MAIN Board –
• Semiconductor
Location
Ref. No.
Location
D1
H-2
D2
E-2
D51
F-11
D52
G-11
D351
J-13
D352
H-13
D501
K-9
D552
H-13
D581
G-12
D582
D-14
D584
C-13
D585
C-13
D586
C-13
D610
E-12
D611
E-12
D613
E-11
D614
D-11
D622
E-7
D624
E-7
D703
L-3
D704
L-4
D705
L-5
D706
L-5
D707
L-4
D708
L-4
D709
L-4
D710
L-3
D721
D-9
D722
E-9
D723
D-7
D724
E-9
D731
E-8
D732
E-9
D733
E-9
D734
C-7
D781
E-13
IC1
G-4
IC301
J-5
IC330
E-5
IC351
J-13
IC501
I-9
IC551
K-12
IC581
D-14
IC611
F-14
IC751
C-8
Q50
E-2
Q51
F-11
Q52
G-11
Q53
G-11
Q54
F-2
Q55
F-2
Q56
F-2
Q171
C-4
Q181
C-4
Q271
C-5
Q281
B-6
Q351
I-13
Q352
I-13
Q353
I-12
Q354
H-12
Q551
J-11
Q571
E-8
Q581
G-11
Q601
K-13
Q602
K-14
Q621
E-7
Q622
E-7
L100
CN701
CNP301
C999
C120
L58
L59
C
D
E
F
G
H
I
J
K
L
M
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A
B
Q50
R59
C59
Q54
Q56
R531
R532
C61
C15
R45
21
C533
C563
C543
C534
C602
C580
XR-CA420N
15
15
6-3.
SCHEMATIC DIAGRAM – MAIN Board (1/3) –
•
See page 12 for Waveform.
•
See page 13 for IC Block Diagrams.
10A/32V
(Page 16)
(Page17)
XR-CA420N
16
16
6-4.
SCHEMATIC DIAGRAM – MAIN Board (2/3) –
•
See page 12 for Waveforms.
•
See page 13 for IC Block Diagrams.
(Page 15)
(Page 17)
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