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Block Diagram - Sharp SM-SX1 Service Manual

1-bit amplifier
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SM-SX1/SX1W
RLY101
SACD
J101
LINE1
Q102
RLY103
LINE2
J102
LINE
OUT
J103
DIGITAL
IN-1
3
RX101
DIGITAL
IN-2
1
TX101
DIGITAL OUT
1BIT TERMINAL
SOC101
LED900~904
LED905~907
Q101
RLY102
Q103
A
B
IC102
13
INVERTER
74HC153F
1
IC103
12
BUFFER
AMP.
13
74HCT04F
10
3
5
11
12
15
IC903~
IC905
17
LED
1
11
DRIVER
BU2114F
3
17
SW900~904
FUNCTION
Figure 12 BLOCK DIAGRAM (1/2)
DIGITAL/ANALOG
CHANGE
RLY802
Q803
IC800
3
DIGITAL
7
INTERFACE
37
8
RECEIVER
10
YM3436D
INITIALIZATION
IC811
TC7W74F
IC806
CONTROL
74ACT00F
1 2 3 29 26 33
35 41
~
38
26
25
IC907
24
SYSTEM
18
MICROCOMPUTER
IX2845AF
20
5
– 12 –
DIGITAL SIGNAL
ANALOG SIGNAL
DIGITAL/ANALOG
CHANGE
VOL301
MAIN
VOLUME
IC801
SAMPLING
1
RATE
CONVERTER
6
SM5844AF
40
44
1
3
38
IC803
39
1bit
42
CONVERSION
TDA1307
35
27 33
IC802
TC7W04F
1 13
IC807
SELECT
RECTIFICATION
74ACT00F
IC804
8
5
CLOCK
1
11
SELECT
74ACT00F
RELAY CONTROL
43
~
13
PROTECT
RLY301,
RLY302
A
Q
IC
Q301
Q302
RLY800
RLY801
Q801
Q802
Q803
9 5
IC805,IC809
WAVEFORM
74HC74AF
3
11

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