Sharp MD-X60 Service Manual page 38

MD-X60
A
B
A/D_SW
20
AUX_1/2
21
NAME_IN
22
A_GND
23
TP951
1
C
TP952
2
TP953
3
TP954
4
TP955
5
CNP980
D_GND
1
CAM_SW1
2
CAM_SW2
3
D_GND
4
CAM_SW3
5
CAM_SW4
6
D_GND
1
TRY_SW1
2
D TRY_SW2
3
TRY_SW3
4
TRY_SW4
5
CNP990
TP916
6
TP915
7
TP914
8
TP913
9
TP912
10
TP911
11
TP910
12
TP909
13
TP908
14
E TP907
15
TP903
16
TP902
17
TP901
18
SW951
RESET
IC902
PST9140
RESET
F
5.1V
1
3
0V
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 62.
1
EXP_DATA
EXP_CLK RA102 100K
EXP_LCK1 RA103 100K
RA104 100K
MO_H/L
C-MO_FOR
C-MO_REV
T-MO_FOR
T-MO_REV
R1029 5.6K
R1030 5.6K
R1031 5.6K
R1032 5.6K
R1033 5.6K
R1034 5.6K
R1035 5.6K
R1036 5.6K
PU_IN
SL+
SL–
DRF
WRQ
R1044 22K
CQCK
R1045 22K
COIN
R1046 12K
SQOUT
R1047
RWC 470K
RES_CD
R1078
18K
CD_9V
0V
CD_7V
Q946
2SC2412 KR
CD_GND
R1043
47K
5.1V +B
2
C944
0.1
C961 0.1
2.6V 0V
1 GND
18
BIASC
1.6V SPEANA_R 0V
2
AOUT 17
VREFC
C962 0.1
2.6V 0V
3
16
TEST
RREF
RA263 100K
4
15
N.C N.C
5 14
DIFOUT SEL
5.1V
6
N.C N.C 13
2.6V SPEANA_C
7
0V 12
CIN C
C967 0.1
2.6V SPEANA_B
8
4.9V B 11
AIN
C968 0.1
5.1V SPEANA_A
9
0V 10
Vcc A
C969 0.1
IC951
BA3835F
+B
BAND PASS FILTER
2 3
Figure 38 SCHEMATIC DIAGRAM (3/15)
IC911
BU2092F
C908
INPUT/OUTPUT
0.1
EXPANDER
RA132
100K
0V
5.1V
+B
1
VSS VDD 18
0V RA131
5.1V
2
DATA
OE 17
39K
5.1V 0V
3
CLK 16
SW12
AUX_1/2 8V
5.1V
4
LCK1 15
SW11
DUBB MODE 0V
5
14
SW1
0V SW10
NAME SEL 0V
0V STOP
6
13
SW2 SW9
0V SKIP+1 DATA SEL 0V
7 12
SW3 SW8
SKIP+10 NEXT 0V
8
11
SW4 0V SW7
PLAY 1T
PLAY N
9
10
SW5 SW5
0V
0V
+B
+B
R1028
R929
CAM_SW1 1K
CAM_SW2
R930
1K
30
CAM_SW3 R931 1K 0.2V
31
R932 1K 0.2V
CAM_SW4
32
TRY_SW1 R933 1K 0.2V
33
R934 1K 0.2V
TRY_SW2
34 TRY SW2
TRY_SW3 R935 1K 5.1V
35
TRY SW3
R936 1K
TRY_SW4 5.1V
36 TRY SW4
5.1V
37
VDD
R938 0
38 MAIN CLK OUT
2.5V
39
MAIN CLK IN
40 VSS
R941 330K
41
SUB CLK OUT
X902
42 SUB CLK IN
32.768kHz
RES
43
RESET
R943 1K
RX_IN 5.1V
RX IN
44
R944 1K
PROTECT 5.1V
PROTECT
45
R945 1K
5.1V
NAME IN
46
R946 1K
SPEANA_A 3.0V
47 SPE_ANA-A
R947 1K
SPEANA_B 3.0V
48
R948 1K
SPEANA_C 2.0V
0V 49
R949 1K
3.8V
50
R950 1K
5.1V
C951 51
0.1
SPEANA_L
C952
0.1
SPEANA_R
TP999
+B
IC952
BA3835F
C971 BAND PASS FILTER
0.1
2.6V 0V
1 GND
18
BIASC
C972
SPEANA_L
1.6V
2
VREFC 17
0V AOUT
0.1
2.6V 0V
3
16
RREF TEST
RA272
4
15
N.C N.C
100K
5 14
DIFOUT SEL
C977 5.1V
6
N.C N.C 13
0.1 SPEANA_C
2.6V
7
12
CIN 0V C
C978 SPEANA_B
8
AIN 2.6V 4.9V B 11
0.1
SPEANA_A
9
10
Vcc 0V A
C979
5.1V
0.1
4
– 38 –
IC912
BU2092F
INPUT/OUTPUT
EXPANDER
0V
1
VSS VDD
RA152 1K
EXP_DATA 5.1V
2
DATA OE
EXP_CLK RA153 1K
5.1V
3
CLK SW12
RA154 1K
EXP_LCK2
5.1V
4
LCK SW11
REC_BIAS 11V
5
SW1 SW10
REC_CONT RA155 1K
6
SW2 0V 0V SW9
RA156 100
CRO2
7
SW3 0V 0V SW8
RA157 220
REC_MUTE
8
SW4 3V SW7
0V
RA158 100
DB_PB/REC
9
SW5 5V 11V SW5
RA159 1K
+B
C911
0.1
5.1V
8 7 6 5
1 2 3 4
27K
29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31 CAM SW3
32
CAM SW4
IC901
33 TRY SW1
IX2757AF
SYSTEM CONTROL MICROCOMPUTER
3.0V
48
SPE_ANA-B
3.0V
49
SPE_ANA-C
5.1V
50
DSTB
52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71
C999
68P
R900
56K
RA254
33K
RA252
4.7K
RA251
4.7K
RA253
33K
V U T
5 6
5.1V
18
0V
17
16
15
RA163
14
1K
DIG_B
13
RA161
12
1K DB_ON/OFF
11
PB_MUTE
10
RA160
0
9 8 7 6 5 4
CA
TAPE
100
VSS
99
MAIN SW
T
82
CD-MUTE
81
CD_HI-SPEED
72 73 74 75 76 77
+B
S R Q P O N M
TO ME
TAPE D
P