Sharp CD-C421H Service Manual page 19

FL701
~ 8 6 5 7 2 1
37
–VP Q701
VF1
(AC)
+B2
28 24 20 52 40 30 29 8
CD RES
5
CD SL–
6
CD SL+
7
D CQCK
9
CD COIN
10
SQOUT
11
CD WRQ
12
CD RWC
IC601
13
CD PUIN
19
IX0225AW
CD DRF.
21
MAIN SYSTEM
MICROCOMPUTER
T1 RUN
22
T2 RUN
23
CUM SW
31
AFP
67
80 72 70 2 51 50
23 4
24 25 57
VDD
L
IDEO
16
33
R
IC401
APE L LC75394E
17
R 32
AUDIO PROCESSOR
UNER
L
19
R
30
GRAPHIC EQUALIZER
D L
21
28
R
14 35 56 63 50 26 27
+12V (AUDIO)
+B4
+12V (DRIVER)
CD SECTION
+B5 Q941
VOLTAGE
+12V
REGULATOR
+B6
(MECHA)
+5V
TO CD SECTION
+B1
(UCOM)
+5V
+B2
+5V
+B3
13 14 15
5
–VP 71
7
6
4
1
80
SYSTEM MICROCOMPUTER
72
70
54
52 29 8 30
14 15 16 17 18
+B8 +B7
33
45
47
48
56
61
71
34 35
XL601
4.19MHZ
+B4
5 8 9
45 7 42 44 41 6 43 40
OUT
L
58
VOLUME
55 R
37 38 39
12 11 10
X-BASS
VOLTAGE
REGULATOR
IC941
F941
T500mA L 250V
VOLTAGE
REGULATOR
IC942
VF1
–VP
VF2
Figure 19 BLOCK DIAGRAM (3/3)
16 18 19 21 22
KEY5 23
KEY1
27
IC701
IX0223AW
RESET
17
SYS STOP
46
48 33 31 20 12 11 10 9 35 34 43 47
XL701
REMOCON
+B8
L-IN 12
13
9 R-IN L-OUT
MUTE
2
7 VCC
5
14
NF
8
11
4
IC961
3
LA4550:421H
LA4551:411H
POWER AMP.
D901 ~ D904
T3.15A L 250V
D905 ~ D908
ZD901
D909
Q901
D911
T1.6A L 250V
VOLTAGE
REGULATOR
– 19 –
CD-C421H / C411H
SW725,726
KEY MATRIX
SW701~SW724
Q702
Q703
+B7
Q704
ZD701
RX701
1 REMOTE 3 +B7
SENSOR
2
+B7
+B3
MEMORY
BACK UP
JA961
HEADPHONES
R-OUT
SO961
SPEAKER TERMINAL
+
–
FRONT
SPEAKERS
–
+
CD-C421H Only
+
–
REAR
SPEAKERS
–
+
F901
AC POWER
SUPPLY CORD
SO901
T.F
L901
F902
AC 230V 50Hz
CORE
PT901
POWER TRANSFORMER