Lcd Display - Sharp CD-C602 Service Manual

KEY MATRIX
25 24 23
CD L
21 L1
CD R
28 R1
TUNER L AUDIO PROCESSOR
19 L2
TUNER R 30 R2
TAPE L
17 L3
TAPE R
32 R3
NC NC
56 63 50
16 33 14 35
L R L R
+B4
+12V
TO CD SECTION
+B5
+12V
+B6(5V)
BIAS
29 KI0
32 KI3
SW701 ~ SW712
KEY IN
SW714 ~ SW716 34 KO0
37 KO3
DO
63
DI
65
CE
66
CL
64
42 61 62 67
IC431
LC75394E
GRAPHIC EQUALIZER VOLUME
26 27 12 37 11 38
VOLTAGE
REGULATOR
Q921
Q922
(MECHA)
(ANALOG)
VOLTAGE
REGULATOR
IC921
1
3
2
Figure 15 BLOCK DIAGRAM (3/3)
LCD701

LCD DISPLAY

COM 0 ~ COM 3
~
25 22
LCD BIAS
~
25 26 21
24
VLC0
COM 0 ~ COM 3
COM OUT
IC701
IX0217AW
SYSTEM
MICROCOMPUTER
40 41 43
51 52
IC601
LA4597
POWER AMP.
6
2
8
1
7
L
58
LVR OUT
OUT
RVR OUT 55
R
VDD 57 +B5
10 39
D901 ~ D904
Q923
– 15 –
CD-C602,CP-C602
S0 ~ S20
~
21 1
~ ~
1 9 80
69
SEG0 ~ SEG20
RESET
SEG OUT
68
RESET Q701
POWER FAIL
DETECTOR
Q702
SYSTEM STOP
39
Q703
REMOTE SENSOR
REMOCON 1
38 RX701
IC X1 X2
3
54 57 58 59
VDD
XL701
4.19MHz
L-IN
3
L-OUT
R-IN
10
REF
VCC
12 R-OUT
MUTE
5
NF
4
GND SWITCHING
Q601
Q602
VOLTAGE
REGULATOR
PT901
POWER
TRANSFORMER
T.F
D703
+B6
2
JK601
HEADPHONES
FRONT
SPEAKER
SWITCH
SO601
SPEAKER
TERMINALS
REAR
SO901
AC SOCKET
AC POWER
SUPPLY CORD
AC 120V 60Hz