Block Diagram - Sony XM-1505SX Service Manual

5-1. BLOCK DIAGRAM

PRE AMP
IC801(1/2)
CNJ805-1
5
L
7
6
FRONT
PRE AMP
IC801(2/2)
CNJ805-2
3
R
1
2
PRE AMP
IC806(2/2)
CNJ805-3
5
L
7
6
REAR
PRE AMP
IC806(1/2)
CNJ805-4
3
R
1
2
S803
MODE (SUB WOOFER)
F F+R
PRE AMP
IC809(1/2)
CNJ805-5
L 3
1
2
SUB
WOOFER
CNJ805-6
R
DC DET
IC903
B+
(+39V)
DC DET
B-
Q914
(-45V)
CN801
F901
+12V REG
2
Q901,902
GND
1
POWER
D841
ON/OFF
THERMAL
Q903
CN802
REM
LED
SWITCH
DRIVE
Q841
Q801
04
SECTION 5
DIAGRAMS
LEVEL SHIFT RV802
IC802(2/2) (3/4)
5 RV802
7
(1/4)
6
1 10 9 8
S801
RV801(1/2)
HIGH PASS
HPF
12
FILTER
RV801
X20
13 IC803
LEVEL
(FRONT)
X1
1 2 3 4
LEVEL SHIFT -14.5V
RV802
IC802(1/2)
(4/4)
3
1
2
TEST TONE GENERATOR
IC805 RV802
(2/4)
S851
RV801(2/2)
7 6
TEST TONE
1 2
1805GX
LEVEL SHIFT
IC807(2/2)
5
VR804
1505SX
7
6 (2/4)
S802
HPF
ON
VR804
VR803(1/2) (2/4)
VR804
VR803
OFF
HPF
LEVEL
(REAR)
(REAR)
LEVEL SHIFT
IC807(1/2)
2
VR804 1505SX
1
3
(4/4)
VR804
VR803(2/2)
(3/4)
1805GX
LEVELAMP PHASE SHIFT
RV806
IC809(2/2) IC810(2/2)
PHASE
5 5
7 7
6 6
RV807
LPF
VR805
LEVEL
(SUB WOOFER)
T902
D844
IC902
POWER
INVERTER
DRIVER
12 10
Q913
Q911
11
DC-DC
8
CONVERTER
16
TH803-
DRIVER INVERTER
14 9
805
Q910 Q912
LINE AMP
LINE
IC804(1/2)
SWITCH
Q116
DIFFERENTIAL DRIVE
3 1
AMP AMP
Q101 Q103
VR101
BIAS
RV802
HPF
(FRONT)
DIFFERENTIAL DRIVE
AMP AMP
Q102 Q104
LINE AMP
LINE
IC804(2/2)
SWITCH
Q216
DIFFERENTIAL DRIVE
5 7 AMP AMP
Q201 Q203
VR201
BIAS
DIFFERENTIAL DRIVE
AMP AMP
Q202 Q204
LINE AMP
LINE
IC808(2/2)
SWITCH
Q316
DIFFERENTIAL DRIVE
5 7 AMP AMP
Q301 Q303
VR301
BIAS
DIFFERENTIAL DRIVE
AMP AMP
Q302 Q304
LINE AMP
LINE
IC808(1/2)
SWITCH
Q416
DIFFERENTIAL DRIVE
3 1 AMP AMP
Q401 Q403
VR401
BIAS
DIFFERENTIAL DRIVE
AMP AMP
Q402 Q404
L.P.F AMP
LINE
IC810(1/2)
SWITCH
Q516
DIFFERENTIAL DRIVE
3 1 AMP AMP
Q501 Q503
VR501
BIAS
DC DET
IC811
MUTE
Q804
DIFFERENTIAL DRIVE
AMP AMP
Q502 Q504
LED842
LED DRIVE
OVER CURRENT
Q802
LED843
OFFSET
D915
B+
(+45V)
IC901
D917
B+
INVERTER
DRIVER
12 10
(+39V)
Q907
Q905
11
DC-DC
8
D918
CONVERTER
B+
DRIVER INVERTER
(-45V) 9
Q904 Q906
D916
B+
(-39V)
9 9
CN804
POWER
AMP
Q107
L
OVER LOAD
DET
BIAS Q108
Q105
POWER
BTL
AMP
Q106
FRONT
POWER
AMP
Q207
R
OVER LOAD
DET
Q208
BIAS
Q205
POWER
AMP
Q206
POWER
AMP
Q307
L
OVER LOAD
DET
BIAS Q308
Q305
POWER
BTL
AMP
Q306
POWER
AMP
Q407
R
OVER LOAD
DET
BIAS Q408
Q405
POWER
AMP
Q406
CN803
SUB WOOFER
SPEAKER OUT
POWER AMP
Q507,509
(1505SX)
Q507,509,511
L+R
(1805GX)
OVER LOAD
DET
BIAS Q508
Q505
POWER AMP
Q506,510
(1505SX)
Q506,510,512
(1805GX)
LED DRIVE OFFSET DET
Q803 Q805-807
D905
T901
B+
(+30V)
D907
B+ REG B+
Q909 (+14.5V)
• Signal path
D908
B- REG B-
(-14.5V)
Q908
D906
B-
(-30V)
XM-1505SX/1805GX
SPEAKER
OUT
REAR
: AUDIO