Read Sony XM-S400D Service Manual online
XM-S400D
XM-S400D
7
7
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM
DIFFERENTIAL
AMP
IC101 (1/2)
HIGH-PASS
FILTER
IC107 (1/2)
SIGNAL
INPUT
MUTING
Q103
MUTING
Q104
BUFFER
IC104 (2/2)
BUFFER
IC104 (1/2)
D514
LED DRIVE
Q525
CN101
FRONT
HPF
S103-1
INPUT
SELECT
S101-1
1
RL+
2
RL–
4
RR–
3
RR+
5
FL+
LOW-PASS
FILTER
IC107 (2/2)
DIFFERENTIAL
AMP
IC101 (2/2)
AUDIO DETECT
Q101
9
AMP_MUTE
8
AMP_STBY
SYSTEM CONTROLLER
IC508
10
AMP_FAULT
3
REM_IN
21
TEMP_AMP
20
TEMP
23
DCDC_ON
7
LED_ON
2
BU_IN
4
SP_IN
11
AMP_SCL
13
INTP3
12
AMP_SDA
Q526
MUTING CONTROL
Q102
6
FL–
8
FR–
7
FR+
B+ SWITCH
Q527, 528
TH502
19
TEMP_POW2
TH503
TH501
DC/DC
CONVERTER
IC503
BUFFER
Q507
BUFFER
Q508
SWITCHING
DRIVER
Q509, 513
+18V
REGULATOR
IC507
CENTER VOLTAGE
GENERATOR
IC103
SWITCHING
DRIVER
Q510, 514
RECT
D516 – 519
ANALOG_+18V
VCC
+3.3V
T502
DC/DC
CONVERTER
TRANSFORMER
R-CH
R-CH
REAR
LPF
S102-1
6
8
CN501
POWER AMP
IC301
13
47
IN1_P
FL+
FL–
OUT1_P
48
OUT1_M
44
OUT2_P
45
OUT2_M
15 IN2_P
5
7
FR+
FR–
2
4
RL+
RL–
R-CH
1
2
RR+
RR–
9
AMP_REM
R-CH
2
MUTE
1
FA
U
LT
64
SCL
63
SDA
4
ST
ANDBY
D505
D504
BATTERY
CHECK
Q502
REMOTE DETECT
Q504
BACK UP
VOLTAGE DETECT
Q501, 503
15
VCC
+3.3V
REGULATOR
IC502
POWER
PROTECT
: AUDIO
SIGNAL PATH
R-ch is omitted due to same as L-ch.
ON
OFF
ON
OFF
2CH
4CH
TO
AUDIO CIRCUIT
D101
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