7
7
XR3F-19B160
2-2.
BLOCK DIAGRAM – MAIN Section –
MUTING
Q101
MUTING
Q201
MUTING
CONTROL SWITCH
Q301
LOW-PASS
FILTER
IC102 (1/2)
LOW-PASS
FILTER
IC102 (2/2)
DIGITAL FILTER,
D/A CONVERTER
IC301
LINE AMP & SWITCH
IC101
3
2
1
26
4
27
16
13
5
6
25
6
11
2
4
13
9
6
5
10
21
25
26
78
77
1
9
2
44 43
20
42 47
18 17
16 15
11 – 14, 3 – 6
37 – 27, 25 – 19, 17 – 11
2, 3
14
70
69
66
19
76
62
60
63
C
B
A
X301
16.93MHz
DATA
LOUT
IN2A
OUT2
AUDIO IN
R-CH
AUDIO IN
L-CH
AUDIO OUT
L-CH
AUDIO OUT
R-CH
CD/EXIT
SWITCHING
Q302
CD LOGIC
SENSE
Q304
CD LOGIC
SENSE
OUT1
SW1
SW2
IN2B
IN1A
IN1B
ROUT
XTI
XTO
MUTE
LGSENS
CDON
QH
S/L
CLK
CL
DI
CE
BLK
DAMUTE
AMUTE
QH
SH/LO
VFCLK
VFDAT
VFLAT
VFINH
DAON
SVP
POWER
LAMPIN
RADIOON
RESET
BATTCHK
X1
X2
EJKEY
BCK
LRCK
CLKO
EMP1
EMP2
3
4
2
1
5
A – H
KEY CONTROL
IC502
S502 – 509
S501
FLUORESCENT INDICATOR TUBE
VFD501
SWITCHING
REGULATOR
Q406, 407
B+ SWITCH
Q609, 610
B+ SWITCH
Q602, 603
REGULATOR
Q409, 411
B+ SWITCH
Q403, 404
D401
+5V
REGULATOR
Q401
BACK-UP
4
1
2
ERROR
AMP
PWM
COMPARATOR
OUTPUT
CIRCUIT
OSC
REGULATOR
CONTROL
SWITCH
Q410
LEVEL SHIFT
D302
+5V
REGULATOR
IC404
+5V
REGULATOR
IC402
B+ SWITCH
Q301, 302
D/A CONVERTER
(IC301) B+
+10V
REGULATOR
Q405
RIPPLE
FILTER
Q408
AUDIO CIRCUIT
(IC101, 102) B+
PL501 – 506
RESET SIGNAL
GENERATOR
IC602
X601
4.19MHz
SYSTEM RESET
IC403
BATTERY CHECK
Q402
+5V
+5V DRIVER,
+5V ACC
SERVO
SYSTEM B+
IC402 B+
IN
OUT
VCC
POWER CONTROL
IC401
+10V (VFD)
BATT
LAMP+
LAMP–
RADIO ON
4
3
1
5
CN201
POWER
CONNECTOR
BACK-UP
BATT
EJECT
FL DRIVER
IC501
P1 – P25
C16M
EMPH
05
1G, 2G
SYSTEM CONTROLLER
IC601 (2/2)
(Page 6)
(Page 6)
(Page 6)
CN301
TO MASTER UNIT
• SIGNAL PATH
: CD PLAY
