Diagrams; Block Diagram - Sony XM-2150GSX Service Manual

SECTION 4

DIAGRAMS

4-1. BLOCK DIAGRAM

PRE AMP
IC101(1/2)
CNJ801-1,-3
-1
INPUT
3
1 6
L 2
5
OUTPUT
(THROUGH) -3
CNJ803
L
HI LEVEL
INPUT
R
PRE AMP
IC201(1/2)
CNJ801-2,-4
-4
OUTPUT
2
1 6
(THROUGH)
3
5
R
-2
INPUT
TEST TONE
GENERATOR
S301
IC301
TEST TONE
7
1
CN802
1
REM
CN801
F901
+12V
2
GND
1
+14.2V +14.2V
(B+) (B+)
D808 D809 D810 D811
POWER OVER THERMAL
OFFSET
CURRENT
Q808
PRE AMP H.P.F L.P.F
IC101(2/2) IC102(2/2) IC102(1/2)
7 5 7 2 1
RV801-1
FILTER
PRE AMP
H.P.F L.P.F
IC201(2/2) IC202(2/2) IC202(1/2)
7 5 7 2 1
RV801-3
FILTER
D301
+14.2V
5
(B+)
D302
–14.2V
2
(B–)
POWER
ON/OFF
Q903
DC DET
IC902
B+
SWITCH
Q901,902
LED DRIVE
Q813
PROTECT LATCH
Q812
LED DRIVE
Q811
PROTECT LATCH
D808 D807
Q810
LED DRIVE
Q809
TEMP.DET
TH801-803,
806-809,
812,813
S801-1
FILTER
L.P.F
LPF
IC103(2/2)
LOW BOOST
OFF
LINE AMP
IC104(2/2)
IC104(1/2)
HPF
6 7
RV801-2 5
7 3
FILTER
6
2
+14.2V
(B+)
LEVEL
SHIFT
RV103-1
Q101
LOW
BOOST
(40Hz)
–14.2V
(B–)
L.P.F
IC103(1/2)
LOW BOOST
LINE AMP
IC204(1/2)
IC204(2/2)
2 1
RV801-4 5
7 3
FILTER
6
2
S801-2
FILTER
+14.2V
LPF
(B+)
OFF
LEVEL
HPF
SHIFT
RV103-2
Q201
LOW
BOOST
(40Hz)
–14.2V
(B–)
CONVERTER
TRANSFORMER
DC-DC CONVERTER
IC901
11
12
INVERTER
10
Q904,905
REF.
REG
DRIVER
Q908
14
8
INVERTER
9
Q906,907
DRIVER
Q909
1
2
15
16
+20.3V
3 HI-CURRENT
(B+)
/HI-VOLTAGE
4
DET
–20.3V
IC903,Q912
(B–)
9 9
LINE
SWITCH
Q102
DIFFERENTIAL DRIVE POWER
1 AMP AMP AMP
Q103 Q105 Q108,112
RV105
BIAS
OVER CURRENT
Q114,116
BIAS
RV104-1 Q107
LEVEL
DIFFERENTIAL DRIVE POWER
AMP AMP AMP
Q104 Q106 Q109,113
LINE
SWITCH
Q202
DIFFERENTIAL DRIVE POWER
1
AMP AMP AMP
Q203 Q205 Q208,212
RV205
BIAS
OVER CURRENT
Q214,216
BIAS
RV104-2 Q207
LEVEL
DIFFERENTIAL DRIVE POWER
AMP AMP AMP
Q204 Q206 Q209,213
LINE SWITCH
CONTROL
Q801,802
DC OFFSET
DET
Q803-805
DC-DC
T901
RECT +53V
(B+)
D909
D921 D919
RECT +51V
(B+)
D905
+53V
RECT
(B+)
D907
D911,917
D912,918
RECT –51V
(B–)
D906
RECT
–51V
D908 (B–)
D920 D922
RECT
–53V
D910 (B–)
• Signal path
: AUDIO
XM-2150GSX
CN804
1
SPEAKER
OUT
2
L
DET
CN805
1
SPEAKER
OUT
2
R
DET
+20.3V
(B+)
B+
RECT
+14.2V
REG
(B+)
Q910
B–
RECT
–14.2V
REG
(B–)
Q911
–20.3V
(B–)