Diagrams; Block Diagram - Sony XM-2200GTX Service Manual

Q Q
3 7 6 3 1 5 1 5 0

4-1. BLOCK DIAGRAM

PRE AMP
IC101 (1/2)
CNJ801-1,-3
L
-1
INPUT
(BTL)
6
5
OUTPUT
L
(THROUGH) -3
CNJ803
L
HIGH LEVEL
INPUT
R
PRE AMP
IC101 (2/2)
CNJ801-2,-4
-4
OUTPUT
3
(THROUGH)
2
R
-2
INPUT
T E
L 1 3 9 4 2 2 9 6 5 1 3
CN801
REM
F902
+12V
F901
GND
LED DRIVE
Q807
LED DRIVE
Q808
D808
POWER/
PROTECT
w w w
.
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SECTION 4

DIAGRAMS

PRE AMP
IC102 (1/2)
3
7
1
2
L.P.F
IC301
3
RV101-1
1
LEVEL
2
RV301-1 RV301-2
FILTER FILTER
PRE AMP
IC202 (1/2)
1 3
1
2
RV101-2
LEVEL
POWER
ON/OFF DC-DC CONVERTER
Q903
DC DET
IC902
B+
SWITCH 12
Q901,Q902
REF.
REG
PROTECT LATCH
Q801,Q805,Q806
14
TEMP.DET
Q809
TH801,803,808
PTH801
D820,822,827,832
D803
1
2
+45V
15
(B+) HI-VOLTAGE
DET 16
-45V
IC903,Q920
(B-)
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8
S801-1
FILTER
OFF
LOW BOOST
IC102 (2/2)
LPF SWITCH
Q102
5
7
6
L.P.F
IC302 (1/2)
+16.7V
(B+)
5 7
BOOST
EQUALIZER
RV102-1
Q101
INV. AMP LOW
IC302 (2/2) BOOST
(40Hz) –16.7V
(B-)
2
1
3
LOW BOOST
IC202 (2/2)
SWITCH
5
7
6
S801-2
FILTER
OFF
+16.7V
(B+)
LPF
BOOST
EQUALIZER
RV102-2
Q201
LOW
BOOST
(40Hz)
–16.7V
(B-)
LINE SWITCH
Q Q
3 7 6 3 CONTROL 1
Q701,702
DC OFFSET
DET
Q802,Q803,Q804
IC901
11
SWITCHING
DRIVER
10 DRIVER
Q910
Q904,Q905,Q906
SWITCHING
Q912
SWITCHING
Q913
8
SWITCHING
DRIVER
9 DRIVER
Q911
Q907,Q908,Q909
u 1 6 3
.
11 11
2 4
9 9 8
LINE
DIFFERENTIAL DRIVE POWER
AMP AMP AMP
Q103 Q105 Q108,Q110,Q112
RV103
BIAS
OVER CURRENT
DET
Q114
BIAS
Q107
DIFFERENTIAL DRIVE POWER
AMP AMP AMP
Q104 Q106 Q109,Q111,Q113
LINE
Q202
DIFFERENTIAL DRIVE POWER
AMP AMP AMP
Q203 Q205 Q208,Q210,Q212
RV203
BIAS
OVER CURRENT
DET
Q214
BIAS
Q207
DIFFERENTIAL DRIVE POWER
AMP AMP AMP
Q204 Q206 Q209,Q211,Q213
5 1 5 0 8 9 2 4
DC-DC
CONVERTER
TRANSFORMER
T901
B+REG
RECT
Q914
D911,917
RECT
D909
D919
RECT
D905
RECT
D906
D920
RECT
D910
RECT B-REG
D912,918 Q915
• Signal path
: AUDIO
m
c o
XM-2200GTX
2
9 9
CN804
BTL
1
L
2
SPEAKER OUT
CN805
BTL
1
2
R
9 8 2 9 9
+16.7V
(B+)
+54V
(B+)
+45V
(B+)
-45V
(B-)
–54V
(B–)
–16.7V
(B–)