XR-CA370/CA370X
16
16
5-3.
SCHEMATIC DIAGRAM – MAIN Board (1/2) –
•
See page 14 for Waveforms.
•
See page 20 for IC Block Diagram.
ANT100
R101
R104
R201
C202
R100
C203
X200
R202
C201
R200
C204
R203
R204
R206
C208
C207
C209
IC200
C211
C206
R207
Q252
R250
R259
D253
D250
Q253
D300
R314
R312
R313
C302
C303
R300
R301
R302
R306
R304
C304
C306
R308
R310
C311
C312
C305
R307
C307
R311
R309
C310
R37
R8
R9
R25
R49
R46
R47
R48
R21
R23
R57
R20
R19
R18
R17
R27
R44
R16
R26
R53
R607
R50
R13
C8
R12
R3
R4
R59
R60
R5
R6
R7
C3
R2
X1
C1
C2
C6
C5
R58
C600
Q351
R352
R350
Q350
R353
D350
R600
R601
R602
R603
R604
R605
R606
CN600
R55
R11
R10
R54
R14
R105
R106
C103
C100
C101
C102
C104
TU100
L1
C210
R56
R24
R22
CN350
CN300
SW600
M901
S901
S902
S903
R351
IC300
HP901
Q100
Q251
R43
IC1
R38
R305
R303
R1
X2
C200
R35
R32
R31
R29
R28
R39
R40
R51
R208
R209
C314
C10
R61
R62
C4
R262
R264
C262
22k
0
1k
12p
100
12p
4.332MHz
22k
470p
470k
0.1
0
470
0.001
10
2.2
330p
560p
SAA6588T-V2
47
16V
0.1
10
2PB710A
470
10k
1SS133
MTZJ5.1A
PDTC114EK
1SS133
10
1k
1k
0.001
0.001
47k
47k
100
82
100
100p
0.01
330k
15k
470p
100
10V
100p
82
0.01
15k
330k
1
50V
100k
100
100
100
100
100
100
100
100
10k
1k
100
100
100
47k
100
100
100k
100
100
1k
100
100
0.001
100k
100k
4.7k
1k
1k
100
100
1k
18p
0
18.432MHz
12p
12p
22
10V
0.1
1k
0.1
PDTC114EK
1.5k
10k
2SA1428
1
11ES2
1k
1k
1k
1k
1k
1k
1k
12P
100
100
100
100
100k
1k
1k
4.7
50V
0.047
0.001
0.001
0.1
TUX-030
0.0022
1k
10k
100
8P
3P
1.5k
HA12232FP-EL
PDTC144EK
2SD1664
0
MN101C49KSF
100k
100
100
1k
32.768KHz
0.1
100k
0
100k
100k
0
100k
100k
100
220
220
100
6.3V
100p
1k
1k
22p
1k
1k
1
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
TU12
TU2
T
U
1
T
U
9
T
U
1
0
T
U
8
T
U
7
T
U
5
T
U
4
T
U
3
TU7
TU8
TU6
PNL1
PNL4
PNL7
PNL5
PNL3
PNL6
PNL2
TU4
TU5
T
U
9
AU8
AU5
AU6
AU7
A
U
1
A
U
2
A
U
3
A
U
4
B
U
S
4
B
U
S
5
B
U
S
3
T
U
7
T
U
8
B
U
S
6
BUS1
BUS2
TU3
TU1
T
A
P
E
4
T
A
P
E
1
T
A
P
E
2
T
A
P
E
3
TAPE1
TAPE2
TAPE3
PNL1
PNL2
PNL3
PNL4
PNL5
PNL6
PNL7
T
U
I1
1
D1
D2
B
1
B
2
TAPE4
TU11
T
U
6
T
U
1
0
TU2
T
U
1
2
(CHASSIS)
(FM/AM ANTENNA)
NOSE-SW
LAMP+B
LAMP+B
LCD-CLK
LCD-CE
GND
GND
MOTOR+
MOTOR-
FF/REW
TAPE-IN
L-CH
R-CH
N/R
L
R
(PLAYBACK)
(CAPSTAN/REEL)
(DIRECTION)
REV
FWD
(FF/REW)
(OFF:PLAYBACK)
(TAPE DETECT)
(ON:TAPE IN)
LCD-CKO
XO
XI
VSS
OSC1
OSC2
VDD
VREF+
MPTH
VSM
VREF-
NC
I
BE
EP
N
C
I
DES
T-S
EL
0
D
EST-S
EL2
DEST
-SEL1
D
AV
SS
TAP
E-O
N
DA
V
DD
AM-ON
FM-ON
TU-ON
N
/
NC
NC
NC
N
C
N
C
N
C
NC
N
C
N
C
NC
NC
NC
NC
NC
NC
NC
NC
N
C
NC
N
C
NC
NC
NC
NC
NC
AN
T
G
N
D
1
R
L
Q
U
ALITY
S M
ETER
TU
M
U
TE
M
U
TE CO
N
R
D
S
VCC
TU
VD
D
G
ND
2
TU
S
CL
TU
SD
A
E2P SCL
E2P VD
D
E2P S
D
A
(CHASSIS)
LVIN
CIN
SCOUT
VREF
MPX
VSSA
VDDA
AFIN
MAD
PSWN
MPO
HPTH
TCON
OSCO
OSCI
VSSD
VDDD
DAVN
SCL
SDA
1/2VCC
G
ND
V
R
EF
NC1
N
C2
R
IP
VCC
N
C3
NC4
(CHASSIS)
(CHASSIS)
LCD-DO
LCD-DI
LCD-RESET
GND
GND
GND
(1/2)
NC
NC
NC
NC
LCD-CE
NC
ILL-ON
NC
N
C
NC
N
S-M
A
SK
NC
NC
NC
NIL
NC
I2C
-SIO
AM
P
-ON
FRASH WRITE
DRIVE+5V
RESET
Q350,351
CAPSTAN/REEL
MOTOR DRIVE
TAPE EQUALIZER
RDS DECODER
NOISE DET
DISCHARGE
SWITCH
+5V REGULATOR
Q252,253
TUNER
B+ SWITCH
SYSTEM CONTROLLER
ATT
AM
P
-A
TT
TU-ATT
DX
LO/
VOL-ATT
LCD-RES
FLASH-W
TEST-IN
EE-SIO
EE-CKO
COL-SEL
N
O
SE
-SW
FF/R
EW
TAP
E-IN
R
QUALITY
MMOD
LCD-SO(TX)
LCD-SI(RX)
KEYACK
SYS-RES
BUS-ON
D
A
VN
BU
-IN
R
ESET
PO
W
ER
-O
N
IL
L-IN
ACC
-IN
TEL-ATT
B
US
-SO
BU
S-S
I
BU
S
-CK
O
I2C
-CKO
(CA370)
(CA370X)
TUNER UNIT
TU
-A
TTIN
10
µ
H
R263
10
R102
5.6
C250
C251
0.01
10
16V
C105
C106
0.1
100
10V
C205
(Page 17)
(Page 19)
