– 17 –
CD-C422/C422C/C2800/C2800C
Figure 17 BLOCK DIAGRAM (3/3)
M
13
4
3
11
MUTE
L
R
R
L-OUT
R-OUT
FM/AM
ITCHING
ST FM
9
10
MONO/ST
FM
9
2
5
12
R-IN
L-IN
7 VCC
14
NF
8
+12V (DRIVER)
+12V (AUDIO)
+B5
+B4
OUT
L
R
IC961
LA4550
POWER AMP.
+B4
PRESET GRAPHIC EQUALIZER
VDD
X-BASS
VSS
VREF
LVREF
RVREF
AVSS
GRAPHIC EQUALIZER
VOLUME
58
55
R
R
L
L
L
TAPE
VIDEO
TUNER
CD
Q381
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
+B1
+B1
+
–
JA961
HEADPHONES
SERVO
+5V
+5V
TO CD SECTION
IC941
IC942
IC401
LC75394E
AUDIO PROCESSOR
23
16
33
17
32
19
30
21
28
14
35
56
63
50
26 27
12
37
11
38
10
39
24 25
57
CL
DI
CE
LTAGE
URATER
+B4
25
27
29
30
33
34
35
36
37
38
39
40
42 41
43
44
45
46
47
48
49
50
51
43
52
53
54
55
56
58
59
60
65
70
57
24
23
22
21
20
19
18
17
77
79
80
72
71
16
15
14
13
12
11
10
9
~
6
1
~
~
~
7 8
3
RX701
2
1
SYSTEM STOP
DO
DRF
DI
CE
CL
RESET
XL702
4.19MHz
AVDD
AVREF
VDD
+B2
KEY
SW701
SW719
SW723
SW724
TO POWER SECTION
+B5
PHM1
RESET
Q704
Q705
ZD701
MEMORY
BACK UP
+B2
3
2
1
~
33
30
31 32
Q701
+B2
+B1
UNSWITCH
FL701
DISPLAY
~
61
64
~
POWER
T.F
AC 120V 60Hz
PT901
AC POWER
SUPPLY CORD
VOLTAGE
REGULATOR
Q901
Q941
D909
D911
~
D905 ~ D908
D901 ~ D904
ZD901
Q702
IC701
IX0191AW
SYSTEM CONTROL
MICROCOMPUTER
TO CD SECTION
TO CD SECTION
TO CD SECTION
TO CD SECTION
9
43
6
40
8
44
5
41
7
45
4
42
+
–
+
–
+
–
SO961
FRONT SPEAKER
TERMINAL
CD PUIN
CD SL+
CD SL–
VDD
TAPE SOL
TAPE MOTOR
TAPE MECHA STOP
TAPE F.P.
T1 RUN PLSE
SOLM1
SOLENOID
SWM5
CAM
SWM4
F. A. S
SWM3
FOOL PROOF
TAPE
MOTOR
L-CH INPUT
R-CH INPUT
T2 RRUN PLSE
CD UP DOWN/DISC NO
CD DSP RES
CD T/T OPEN/CLOSE
RESET
CD DSP SQOUT
CD DSP COIN
CD DSP RWC
CD DSP CQCK
CD DSP WRQ
T1/T2
TAPE REC
TAPE BIAS
Q706
Q703