XL-70 (serv.man23). Block diagrams - Sharp Audio Service Manual (repair manual). Page 3

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XL-60H/70H
– 24 –
 Figure 24 BLOCK DIAGRAM (3/4)
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 
25
26 27 28 29 30 31 32
94
95
96
97
98
99
100
X701
8MHz
S
E
G6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM1
COM0
VLC3
VLC2
VLC1
VDD 
OSC2
OSC1
VSS 
XI
XO
MMOD
VREF
KEY1
KEY2
VREF+ 
DI
DO
CL
RE
S
ET 
X702
32.768kHz
MODEL 
COM2
COM3
CLID_SW 
CLID_PRO
NC
TAPE_SW 
VSM 
CE
SOL 
MOT 
REC 
Q702
Q703
Q701
RESET SWITCHING
1
RX701
REMOTE
SENSOR
3 2
SW709-SW710
SW721-SW728
Q708
Q709
IC802
TC9462F
SERVO/SIGNAL
CONTROL
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59 
60
61
62
63
64
65
66
67
68
69 
70 
71
72 
73
74
75
76 
77
78
79
80
81
82
83
84
85
86
87
88 
89
90 
91
92
93
94
95
96
97
98
99
100
X801
16.93MHz
A_GND 
+5V 
1
24
2
3
4
5
6
7
8
23
22
21
20
19
18
17
9
16
10
15
11
14
12
13
IC801 
TA2109F
SERVO PRE AMP. 
E
F
B
A
CD  +5V
SW730
CD LID 
OPEN/CLOSE
CFW807
CFW701
SW700
JOG
CNP706
CNS706
UP 
DOWN 
+5V 
Q706
Q707
SWITCHING 
LED+B 
A_12V 
1
2
3
CNS707
SYS  STOP
REMOCON 
RESET 
U-COM  VDD 
U-CON+5V
P  CONT
IC804
LA6541D
-
+
- +
+
+
-
+
+
-
-
REG.
RESET
RES
CD
REG
REG
IN
OUT
SP+
SP-
SL+
SL-
+5V 
FO+
FO-
TR+
TR-
4
5
6
7
8
9
10
11
12
13
14
15
16 17 18 19 20 21 22 23 24 25 26 27
Q861
CD_6.2V 
SW711-SW718
D701-709
LED
D_GND
M_12V
D_GND
SWITCHING
D_GND
KEY
TO POWER
PWB
1
2
1
2
M_GND
DVSR
RO
DVDD
DVR
LO
DVSL
TEST1
TEST2
TEST3
BUS0
BUS1
BUS2
BUS3
VDD
VSS
BUCK
/CCE
TEST4
/TSMOD
/RST
 
VREF
TRO
FOO
TEZI
TEI
TSIN
SBAD
FEI
RFRP
RFZI
RFCT
AVDD
RFI
SLCO
AVSS
VCOF
VCOREF
PVREF
LPFO
LPFN
XVDD
XO
XI
XVSS
VDD
PXO
PXI
VSS
TESI01
TESIN
/DACT
/CKSE
/DMOUT
IO3
IO2
IO1
IO0
VSS
VDD
FLGD
FLGC
FLGB
FLGA
SEL
2VREF
DMO
FVO
FMO
TEBC
RFGC
TEST0
/HSO
/UHSO
EMPH
LRCK
VSS
BCK
AOUT
DOUT
MBOV
IPF
SBOK
CLCK
VDD
VSS
DATA
SFSY
SBSY
SPCK
SPDA
COFS
MONIT
VDD
TESI00
P2VREF
HSSW
ZDET
PDO
TMAXS
TMAX
D_GND
+5V
D_GND 
FMO
M_GND
M_GND
TRO
SBAD
FEO
FEN
VRO
RFRP
RFIS
RFGO
RFGC
AGCI
RFO
GND
RFN
TEO
TEN
2VRO
TEB
SEL
LDO
MDI
TN1
TPI
FPI
FNI
VCC
SBAD
FEI
RFRP
RFI
RFGC
D_GND
TEI
TEBC
SEL
D_GND
+5V
SWITCHING 
IC804
LA6541D
FOCUS/
TRACKING/
SPIN/SLED 
DRIVER
1
42
4
39
~
~
IC805
TA7291S 
NC
IC805
TA7291S
MOTOR DRIVER 
SW802
CD LID
CFW806
CNS805
1
2
3
1
2
3
BI805
J801
CD DIGITAL
OUTPUT 
3
2
1
1
2
3
CNP805
CNS804
M801
CD LID MOTOR
CNP804
1
3
1
3
M_12V 
D_GND 
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