Sharp SM-SX1 Service Manual page 23

9
LED905
7 NC
GL9BC030
6
NC
3 2 4 5 8
10 1
R915
68
R916
68
C900
0.1
IC904
BU2114F
LED DRIVER
18 VDD SIN 1
17 Q1 2
CK
Q2 LATCH 3
16
Q3 4
15 SOUT NC
14 Q4 EN 5
NC
13 Q5 6
NC RST
GND
12 7
Q6
GND 8
11 Q7
GND
10 Q8 9
ENT PWB-A5
COMPUTER PWB-A8
R917
1K
+B
R914
10K
+B
IC908
PST9119
RESET
+B
+B
5 4
3 2 1
+B
7
LED906
GL9BC030
3 2 4 5 8
10 1
10 11 12 13 14 15 16 17 18
9 8 7 6 5 4 3 2 1
44 43 42 41 40 39 38 37 36
R918 1K
1 DATA_IN
R919 1K
IC907
DATA_OUT
2
R920 1K
IX2845AF
3 IC-CLK
R921
SYSTEM
4
1K
5 KEY MICROCOMPUTER
6 VOL DIS
R922
7 KEYA
1K
8 KEYB
23 CL_CONT
9 KEYC
10
11
12 13 14 15 16 17 18 19 20 21 22
+B
R923
10K
C901
D900
10/16
TP56
DAN202K
X900
8.0MHz
+B +B
C902 L900
C903
0.1 22µH
10/16
+B
8
Figure 23 SCHEMATIC DIAGRAM (10/10)
9
LED907
7 NC
GL9BC030
6
NC
3 2 4 5 8
10
10 11 12 13 14 15 16 17 18
9 8 7 6 5 4 3
8 7 6 5 4 3 2 1
8 7 6 5 4 3
8 7
35 34
R955
1K
AUX3 33
32
MUTE
R956 1K
DIG_A 31
R957 1K
DIG_B
30
R958 1K
IC_STB 29
P_IN 28
R951 1K
PROTECT
27
R952 1K
DDATA
26
R953 1K
DLATCH
25
R954 1K
DCLK 24
23 NC
9 10
– 23 –
9
7 NC
6
NC
1
C909
47/10
2 1
BI901
CNS901
2 1
6 5 4 3 2 1
CNP901
+B
TP24
TP25
LMUTE
11
TP26
10
YOBI OUT
TP27
R973
9 P_I
1K
TP28
8 PROTECT
TP29
7
POWER
TP30
R974
6
DIG/ANA
1K
TP31
5
IC_RESET
TP32
4 LED GND
+B TP33
3
+5V
TP34
2
GND
TP35
1
TP36
MUTE
1
L901
TP37
DLATCH
2
L902
TP38
DCLK
3
L903
TP39
4 DDATA
TP40
5 DIG_C
+B
C905 220P
C906 220P
C907 220P
+B
11
SM-SX1/SX1W
11 11
10 10
9 9
8 8
7 7
6 6
CNS902
5 5
TO
4 4
MAIN PWB
P14 1-G
3 3
2 2
1 1
CNS903
TO
DIGITAL PWB
P16 2-H
12