Sharp SM-SX100 Service Manual page 25

A
E
,
2
DIGITAL INPUT
ANALOG AMP.
ANALOG
INPUT
Q606, Q605
Q614, Q613
Q618, Q617
Q610, Q609
Q608, Q607
Q622, Q621
Q612, Q611
Q624, Q623
IC601
ANALOG
D205, 207
D208,209
IC202,203
Q212,211
Q214
801
802
Q801
Q802
Q201
813
1bit
ORM
Dig+5V
ATION
ANa+5V
4F
+5V
2
(Digital)
REGULATOR
BA178M05T
RELAY/SW/
µCOM
OPE AMP.
1BIT UNIT SECTION
FEEDBACK CIRCUIT
SWITCHING
LOGIC CIRCUIT
14 6 1
NAND GATE
15 5 4
ICA1
22 2 13 74AC00F
7TH ORDER
23 3 10
MODULATION
AND GATE
TAC08F
CONVERSION
17
LSI
20
IX2815AF
PROTECT
OFFSET
DETECTION
IC651
Q651,Q652
Q653,Q654
PROTECT OVERCURRENT
DETECTION CIRCUIT
IC201
NJM4558M
Q202, Q209, Q210
D204, D203, D206
Q105
Q106
IC106
DC/DC
1
IC108
1 CONVERTER 9
2
+5V
BP5022
+12V
IC107
1
+5V
DC/DC 9
2
CONVERTER
BP5021
3
+15V
UNIT101
DC/DC
1
-15V
CONVERTER
5
Figure 25 BLOCK DIAGRAM (2/2)
ICA2
3
QA1~QA8
5
6
LEVEL SHIFT
8
6
ICA3 11
Q118
Q119
1bit
1bit
-32V
+32V
RLY106
Q116
R256
G
-32V
+32
UNIT501, 502
DC/DC CONVERTER
F502,F503
T3.15A L 250V(220-240V)
3A/250V(110-127V)
SW501
POWER
UNT503
AC/DC
CONVERTER
– 25 –
SM-SX100
VRA1~VRA4
FEEDBACK LEVEL
ADJUSTMENT
3
QA9~QA16
ICA4~ICA7
LOW PASS
POWER
FET DRIVER
8
HIP2100 SWITCHING
RLY108
RLY107
SPEAKER
1bit
TERMINAL
-22V
-22V
Q114, Q115
+12
IC109
REGULATOR
NJM431U
IMPEDANCE
SELECTOR
RLY501
F501
T4A L 250V(220-240V)
7A/125V(110-127V)
LINE
FILTER
SOC501
AC INLET
AC 230V, 50Hz(220-240V)
AC120V, 60Hz(110-127V)
FILTER
L
R
SW101