Diagrams; Block Diagram - Sony XM-440EX Service Manual

3-1. BLOCK DIAGRAM

PRE
AMP
6
INPUT L
7
(MONO)
5
CNJ301
IC101 (2/2)
(4/4)
CN303
L
HIGH
REAR
LEVEL
INPUT
R
PRE
AMP
6
INPUT R
7
5
CNJ301
IC101 (2/2)
(3/4)
PRE
AMP
6
INPUT L
7
(MONO) 5
CNJ301
IC101 (2/2)
(2/4)
CN302
L
HIGH
FRONT
LEVEL
INPUT
R
PRE
AMP
3
INPUT R
1
2
CNJ301
IC101 (1/2)
(1/4)
SW501
TEST TONE
TO REAR
LINE CONTROL
Q921,922
CN901
+B
+12V SWITCH
Q901,902
POWER/
PROTECTOR
DC DET
POWER
PH902
ON/OFF
Q903
REMOTE
GND
09
SECTION 3

DIAGRAMS

H.P.F RV101 (2/4) L.P.F RV101 (4/4) L.P.F
FILTER FILTER
3 1 6 7 6 7
IC202 (1/2) IC202 (2/2) IC203 (2/2)
H.P.F RV101 (2/4) L.P.F RV101 (4/4) L.P.F
FILTER FILTER
3 1 6 7 6 7
IC202 (1/2) IC202 (2/2) IC203 (2/2)
H.P.F RV101 (2/4) L.P.F RV101 (4/4) L.P.F
FILTER FILTER
3 1 6 7 6 7
IC202 (1/2) IC202 (2/2) IC203 (2/2)
H.P.F RV101 (1/4) L.P.F RV101 (3/4) L.P.F
FILTER FILTER
3 1 6 7 6
IC102(1/2) IC102 (2/2) IC103 (2/2)
+B
OP AMP OP AMP
3 6
1 7
2 5
IC501 (2/2) IC501 (1/2)
D907
POWER/
OVER CURRENT
PROTECTOR
PROTECTOR
Q904,905
SWITCH
Q913,914
12
REF-REG
14
1
D905
2
LED
THERMAL
DRIVE
Q908
15
16
TEMP • DET
TH902,903
SWITCH
3
Q909,910
CONVERTER
SW101 (2/2)
FILTER
HPF
OFF
LPF
FILTER
2
1
3
IC203 (1/2)
RV102
LEVEL
(REAR)
SW101 (2/2)
FILTER
HPF
OFF
LPF
FILTER
2
1
3
IC203 (1/2)
RV102
LEVEL
SW101 (2/2)
FILTER
HPF
OFF
LINE
LPF
SWITCH
FILTER
Q201
3
1
2
IC203 (1/2)
RV102
LEVEL
SW101 (1/2)
FILTER
HPF
OFF
LINE
LPF
SWITCH
FILTER
Q101
3
1
7 2
IC103 (1/2)
RV102
LEVEL
T901
DC-DC CONVERTER
TRANSFORMER
11
INVERTER
10
Q918
DRIVER
Q916
8
INVERTER
9
Q917
DRIVER
Q915
DC-DC
IC901
7 7
DIFFERENTIAL
DRIVE AMP DRIVE AMP DRIVE AMP
AMP
Q204 Q204 Q204
Q263
DRIVE AMP
Q204
DIFFERENTIAL
DRIVE AMP DRIVE AMP DRIVE AMP
AMP
Q204 Q204 Q204
Q263
DIFFERENTIAL
DRIVE AMP DRIVE AMP DRIVE AMP
AMP
Q204 Q204 Q204
Q263
DRIVE AMP
Q204
DIFFERENTIAL
DRIVE AMP DRIVE AMP POWER AMP
AMP
Q204 Q208 Q210
Q203
BIAS
Q206,207
DIFFERENTIAL
DRIVE AMP DRIVE AMP POWER AMP
AMP
Q205 Q209 Q211
Q202
DIFFERENTIAL
DRIVE AMP DRIVE AMP POWER AMP
AMP
Q104 Q108 Q110
Q103
BIAS
Q106,107
DIFFERENTIAL
DRIVE AMP DRIVE AMP POWER AMP
AMP
Q105 Q109 Q111
Q102
D906
POWER/
OFF SET
PROTECTOR
LED
DRIVE
Q906,907
SWITCH
Q911,912
D908
B3+
B+REG
D910
Q919
D911
B-REG
Q920
B3-
D904
XM-440EX/440NX
CN904
REAR
SPEAKER
OUT
L
DIFFERENTIAL
AMP
Q202
L+R MONO
R
CN903
FRONT
SPEAKER
OUT
L
OVER ROAD
DET
Q212
L+R MONO
R
OVER ROAD
DET
Q112
OFFSET
DET
Q923-925
B1+
B2+
B1-
B2-
• Signal path
F : AUDIO