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11
11
XM-2200GTX
4-1. BLOCK DIAGRAM
SECTION 4
DIAGRAMS
PRE AMP
IC101 (1/2)
PRE AMP
IC102 (1/2)
L.P.F
IC301
LOW BOOST
IC102 (2/2)
DIFFERENTIAL
AMP
Q103
POWER
AMP
Q108,Q110,Q112
OVER CURRENT
DET
Q114
DRIVE
AMP
Q105
DIFFERENTIAL
AMP
Q104
POWER
AMP
Q109,Q111,Q113
DRIVE
AMP
Q106
BIAS
Q107
BOOST
EQUALIZER
Q101
FILTER
S801-1
OFF
LPF
RV102-1
LOW
BOOST
(40Hz)
+16.7V
(B+)
–16.7V
(B-)
CNJ801-1,-3
INPUT
OUTPUT
(THROUGH)
OUTPUT
(THROUGH)
L
(BTL)
SPEAKER OUT
L
R
LINE
SWITCH
Q102
REM
+12V
PRE AMP
IC202 (1/2)
LOW BOOST
IC202 (2/2)
DIFFERENTIAL
AMP
Q203
POWER
AMP
Q208,Q210,Q212
OVER CURRENT
DET
Q214
DRIVE
AMP
Q205
DIFFERENTIAL
AMP
Q204
POWER
ON/OFF
Q903
LINE SWITCH
CONTROL
Q701,702
POWER
AMP
Q209,Q211,Q213
DRIVE
AMP
Q206
BIAS
Q207
BOOST
EQUALIZER
Q201
RV102-2
LOW
BOOST
(40Hz)
+16.7V
(B+)
–16.7V
(B-)
CNJ801-2,-4
CNJ803
INPUT
R
L
HIGH LEVEL
INPUT
R
LINE
SWITCH
Q202
RV203
BIAS
RV103
BIAS
DC OFFSET
DET
Q802,Q803,Q804
B+
SWITCH
Q901,Q902
TEMP.DET
Q809
TH801,803,808
PTH801
LED DRIVE
Q807
PROTECT LATCH
Q801,Q805,Q806
CN801
F902
LED DRIVE
Q808
RECT
D911,917
RECT
D909
RECT
D905
RECT
D910
+16.7V
(B+)
+54V
(B+)
+45V
(B+)
RECT
D906
-45V
(B-)
–54V
(B–)
–16.7V
(B–)
SWITCHING
DRIVER
Q904,Q905,Q906
SWITCHING
DRIVER
Q907,Q908,Q909
DRIVER
Q910
SWITCHING
Q913
SWITCHING
Q912
D919
D920
DC-DC
CONVERTER
TRANSFORMER
T901
DC-DC CONVERTER
IC901
D803
D820,822,827,832
+45V
(B+)
-45V
(B-)
• Signal path
: AUDIO
CN804
BTL
BTL
CN805
1
2
1
2
L.P.F
IC302 (1/2)
RV301-1
FILTER
RV101-1
LEVEL
RV101-2
LEVEL
RV301-2
FILTER
FILTER
S801-2
OFF
LPF
-1
-3
-4
-2
DRIVER
Q911
B-REG
Q915
B+REG
Q914
L
RECT
D912,918
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299