Read Sony XM-1S Service Manual online
9
9
XM-1S
XM-1S
3-1. BLOCK DIAGRAM
SECTION 3
DIAGRAMS
3
PRE AMP
IC101 (1/2)
J101
INPUT
REM
+12V
GND
10
TM101
L
SENSING
POWER ON
HIGH
LEVEL
INPUT
INPUT
R
15
16
1
2
14
12
REF.
REG
REG
CN801
1
3
REG
Q102
D905,906
RECT
D909,910,912,913
RECT
D914,915
RECT
REG
Q103
VDD (IC112)
+60V
–60V
+15V
–15V
+60V
SWITCHING
DRIVER
Q905-907
SWITCHING
DRIVER
Q909-911
DRIVER
Q914,915
BUFFER
Q913
BUFFER
Q912
11
9
8
DC-DC
CONVERTER
TRANSFORMER
T901
DC-DC CONVERTER
IC901
POWER
ON/OFF
Q903
F901 30A
F902
POWER
CONTROL
Q902
-1
-2
(THROUGH)
OUTPUT
-3
-4
L
R
L
R
2
FILTER AMP
IC102 (1/2)
2
1
5
7
PRE AMP
IC104 (2/2)
PRE AMP
IC104 (1/2)
SPEAKER
OUT
CN101
+60V
–60V
L+R
–15V REG
Q917
+15V REG
Q916
BUFFER
AMP
Q106
LED
DRIVER
Q805
STANDBY
DET
Q702
THERMAL
DET
Q851-854
TEMP.
DET
TH801-803
OVERLOAD
CONTROL
Q823
CURRENT
DET
Q822
EMERGENCY
STOP CONTROL
IC111 (1/4,2/4)
L+R
2
6
GAIN AMP
IC102 (2/2)
5
7
FILTER AMP
IC103 (1/2)
5
6
BOOST AMP
IC103 (2/2)
7
5
6
SIGNAL LEVEL DET
IC106 (2/2)
7
3
2
THERMAL AMP
IC106 (1/2)
1
TRIANGLE WAVE OSC
IC109
PRE AMP
IC101 (2/2)
LED DRIVER
Q855
D854
+15V
D109
D110
D111
D112
DIVIDER
IC110
BUFFER
AMP
IC111 (3/4,4/4)
LATCH
Q806
LED DRIVER
Q856
OVERLOAD
CONTROL
Q821
BOOST
CONTROL
Q101
BUFFER
AMP
Q104
DRIVER
AMP
Q108,109
PRE DRIVER
IC112
DRIVER
AMP
Q110,111
POWER
AMP
Q115
POWER
AMP
Q112
PROTECTION
DRIVER
CONTROL
Q804
PROTECTION
DRIVER
Q802,803
DC VOLTAGE
DET
Q827,828
2
6
6
7
THERMAL
PROTECTION
AMP
IC105
CURRENT
DET
Q824,825
DC DET
IC902
DC BALANCE DET
IC903
1
2
3
1
B+
SWITCH
Q901
DC BALANCE
DET
Q920
D858
D909
D910
D912
D913
D905
D906
D914
D161
D107
D915
+60V
VCC
D701
(PROTECTOR)
D857,859
(ILLUMINATION)
D863
ACTIVE THERMAL
CONTROL
RV3-2
RV3-1
RV2
LOW BOOST
(40Hz)
RV1
LEVEL
RV3
LPF
S101
SUBSONIC
FILTER
–60V
D920-922
12
14
8
6
1
HIN
HD
VS
LD
LIN
2
3
(15Hz)
OFF
ON
OFF
3
1
D861,862
BLUE
ILLUMINATION
S102
BLUE
ILLUMINATION
30A
1
1
2
3
4
1
2
3
4
• Signal path
: AUDIO
: AUDIO
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