Sony XM-1505SX / XM-1805GX Service Manual ▷ View online
9
9
XM-1505SX/1805GX
5-1. BLOCK DIAGRAM
SECTION 5
DIAGRAMS
5
6
7
3
1
1
12
13
10
9
8
1
2
3
4
PRE AMP
IC801(1/2)
LEVEL SHIFT
IC802(2/2)
LINE AMP
IC804(1/2)
BIAS
Q105
RV802
HPF
CNJ805-1
CNJ805-2
+12V
GND
L
R
FRONT
CNJ805-3
CNJ805-4
L
R
REAR
CNJ805-5
CNJ805-6
L
R
SUB
WOOFER
L
BTL
FRONT
BTL
REAR
SPEAKER
OUT
R
VR101
BIAS
TH803-
805
CN801
F901
INVERTER
Q913
INVERTER
Q912
DRIVER
Q910
DRIVER
Q911
CN803
SUB WOOFER
SPEAKER OUT
D844
POWER
D841
THERMAL
SWITCH
Q841
• Signal path
: AUDIO
: AUDIO
04
2
1
REG
Q901,902
(FRONT)
S801
HPF
S802
HPF
POWER
AMP
Q107
DIFFERENTIAL
AMP
Q102
DRIVE
AMP
Q104
POWER
AMP
Q106
REM
CN802
B+
(+45V)
B+
(+39V)
LED
DRIVE
Q801
LED842
OVER CURRENT
LED843
OFFSET
OFFSET
POWER
ON/OFF
Q903
DC DET
IC903
DC DET
IC811
D915
T902
D917
D918
D916
LINE
SWITCH
Q116
OVER LOAD
DET
Q108
5
6
7
3
2
1
5
7
PRE AMP
IC801(2/2)
LEVEL SHIFT
IC802(1/2)
LINE AMP
IC804(2/2)
DIFFERENTIAL
AMP
Q201
DRIVE
AMP
Q203
BIAS
Q205
VR201
BIAS
POWER
AMP
Q207
DIFFERENTIAL
AMP
Q202
DRIVE
AMP
Q204
POWER
AMP
Q206
LINE
SWITCH
Q216
OVER LOAD
DET
Q208
L
5
7
LINE AMP
IC808(2/2)
DIFFERENTIAL
AMP
Q301
DRIVE
AMP
Q303
BIAS
Q305
VR301
BIAS
POWER
AMP
Q307
DIFFERENTIAL
AMP
Q302
DRIVE
AMP
Q304
POWER
AMP
Q306
LINE
SWITCH
Q316
OVER LOAD
DET
Q308
3
2
1
5
6
7
PRE AMP
IC806(2/2)
LEVEL SHIFT
IC807(2/2)
5
6
7
R
3
1
LINE AMP
IC808(1/2)
DIFFERENTIAL
AMP
Q401
DRIVE
AMP
Q403
BIAS
Q405
VR401
BIAS
POWER
AMP
Q407
DIFFERENTIAL
AMP
Q402
DRIVE
AMP
Q404
POWER
AMP
Q406
LINE
SWITCH
Q416
OVER LOAD
DET
Q408
3
2
1
PRE AMP
IC806(1/2)
LEVEL SHIFT
IC807(1/2)
2
3
1
L+R
3
1
L.P.F AMP
IC810(1/2)
DIFFERENTIAL
AMP
Q501
DRIVE
AMP
Q503
MUTE
Q804
BIAS
Q505
VR501
BIAS
POWER AMP
Q507,509
(1505SX)
Q507,509,511
(1805GX)
POWER AMP
Q506,510
(1505SX)
Q506,510,512
(1805GX)
DIFFERENTIAL
AMP
Q502
DRIVE
AMP
Q504
LINE
SWITCH
Q516
OVER LOAD
DET
Q508
3
2
1
PRE AMP
IC809(1/2)
LEVELAMP
IC809(2/2)
5
6
7
PHASE SHIFT
IC810(2/2)
5
6
7
7
1
6
2
14
16
8
11
12
9
10
8
11
12
9
10
B+
(-45V)
B+
(-39V)
INVERTER
Q907
LED DRIVE
Q802
INVERTER
Q906
DRIVER
Q904
DRIVER
Q905
B+
(+30V)
B+
(+14.5V)
D905
T901
D907
D908
D906
B-
(-14.5V)
B-
(-30V)
B+ REG
Q909
B- REG
Q908
LED DRIVE
Q803
OFFSET DET
Q805-807
DC DET
Q914
B-
(-45V)
B+
(+39V)
DIFFERENTIAL
AMP
Q101
DRIVE
AMP
Q103
RV801
LEVEL
(FRONT)
VR803
LEVEL
(REAR)
VR804
HPF
(REAR)
RV801(1/2)
RV801(2/2)
VR803(1/2)
VR803(2/2)
X20
X1
ON
OFF
-14.5V
HIGH PASS
FILTER
IC803
IC901
IC902
RV806
PHASE
RV807
LPF
VR805
LEVEL
S851
TEST TONE
1805GX
1805GX
TEST TONE GENERATOR
IC805
1505SX
1505SX
S803
MODE (SUB WOOFER)
F F+R
RV802
(1/4)
RV802
(3/4)
RV802
(2/4)
VR804
(2/4)
VR804
(4/4)
VR804
(2/4)
VR804
(3/4)
RV802
(4/4)
DC-DC
CONVERTER
DC-DC
CONVERTER
(SUB WOOFER)
CN804
10
10
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
2
: nonflammable resistor.
•
U
: B+ Line.
•
V
: B– Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from +12V and REMOTE terminals.
• Voltage is dc with respect to ground under no-signal
condition.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: AUDIO
for printed wiring boards:
Note:
Note:
•
X
: parts extracted from the component side.
•
b
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
• IC Block Diagram
IC901, 902 µPC494GS-T
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
OSC
REF. REG.
ERROR
ERROR
0.1V
Q205
E-14
Q206
E-14
Q207
D-14
Q208
F-13
Q216
F-12
Q301
C-12
Q302
C-12
Q303
C-13
Q304
D-13
Q305
C-14
Q306
D-14
Q307
C-14
Q308
D-13
Q316
D-11
Q401
C-11
Q402
C-11
Q403
C-10
Q404
C-11
Q405
B-11
Q406
B-11
Q407
B-10
Q408
B-11
Q416
D-11
Q501
F-4
Q502
F-4
Q503
G-4
Q504
F-4
Q505
F-2
Q506
E-2
Q507
F-2
Q508
F-3
Q509
G-2
Q510
E-2
Q511
H-2
Q512
D-2
Q516
G-6
Q801
F-7
Q802
G-8
Q803
G-9
Q804
F-8
Q805
F-9
Q806
G-9
Q807
G-9
Q901
F-5
Q902
G-5
Q903
F-5
Q904
E-6
Q905
D-6
Q906
B-7
Q907
B-6
Q908
F-9
Q909
F-9
Q910
E-5
Q911
D-5
Q912
B-6
Q913
B-5
Q914
F-5
D506
F-3
D507
F-3
D801
D-8
D802
B-4
D803
F-8
D804
F-7
D805
E-8
D806
E-8
D807
B-4
D901
F-5
D902
F-5
D903
D-6
D904
D-6
D905
B-8
D906
B-8
D907
B-9
D908
B-9
D909
B-12
D910
B-12
D911
F-9
D912
F-9
D913
D-5
D914
D-5
D915
D-4
D916
D-4
D917
C-2
D918
B-2
D919
F-4
D920
F-4
D921
E-5
D922
E-5
D923
E-5
D928
E-5
IC801
H-8
IC806
H-7
IC807
H-8
IC808
H-10
IC809
H-6
IC811
E-7
IC901
D-7
IC902
D-5
IC903
E-5
Q101
G-12
Q102
G-12
Q103
F-13
Q104
G-13
Q105
G-14
Q106
G-14
Q107
F-14
Q108
G-13
Q116
G-12
Q201
E-12
Q202
E-12
Q203
E-13
Q204
E-13
• Semiconductor Location (AMP SECTION)
Ref. No.
Location
Ref. No.
Location
11
11
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
R929
D807
D802
R930
R941
TH903
R843
R937
R847
R846
R938
R940
R915
R916
C952
C953
R432
R433
R423
R426
C416
C415
R425
R422
R420
R424
Q401
Q402
R421
R429
C417
R436
R318
R417
JR15
BCE
C924
C923
R334
R339
Q301
Q302
R327
R328
R230
R234
R239
R227
R228
R231
R235
R130
R127
R128
R134
R139
R118
R119
R135
JR13
R131
R217
R219
R117
JR14
R335
R330
R331
R319
R428
R427
R434
R419
R322
D909
D910
R323
R326
R326
C316
C315
C315
C318
R325
R321
Q304
Q303
Q203
R329
C317
C317
R320
R324
R332
R333
R336
R232
R236
R223
R226
R226
R222
R220
R224
R220
R224
R221
R229
C217
R229
C217
C216
C215
C215
C218
C951
C950
C113
R225
Q201
Q202
R233
R132
R121
R129
C117
C117
C119
R138
C219
TH801
R238
C319
R338
C519
C901
C815
R538
C419
C408
C309
C409
R438
CN804
R136
R123
R126
R126
C116
C115
C115
C118
R125
R133
R122
R120
R124
R124
Q207
Q208
Q108
Q204
Q216
Q101
Q102
Q104
Q503
Q504
Q501
Q502
Q103
Q116
Q308
TP302
Q307
Q306
Q305
Q205
Q206
Q105
TP301
TP201
TP202
Q107
Q106
TP101
TP102
VR101
VR201
VR301
TP401
TP402
VR401
TP3
TP501
TP2
TP1
TP1
TP502
VR501
JR16
Q403
JR29
R317
R430
R439
R431
R435
Q408
R939
R944
R942
D906
D907
D905
BC
E
BCE
R918
R920
R917
R919
R830
R828
R826
R824
R825
R812
R813
JR33
R829
R831
C949
C308
C813
C102
C101
C201
C301
C401
C501
C602
C502
C601
C402
C202
C302
R818
R817
R816
R814
R821
R820
R823
D805
D806
R822
R815
R811
R807
R805
C802
C910
C933
C913
C906
C905
C907
C807
C926
C928
C929
C930
C935
C934
C937
C936
C518
C518
C514
C938
C939
C941
C940
C915
C912
C214
C114
C911
C916
C914
C922
C920
C812
C806
C804
C919
C921
R809
R838
JR11
R517
R907
D902
R906
R905
R903
JR26
R904
C303
R304
R301
R440
R340
R403
R303
C305
R240
R201
R832
JR34
R411
R414
R408
R311
R309
C410
R202
C105
C203
R204
JR4
JR41
R307
R407
JR6
JR5
C103
R140
R101
R103
R104
C407
C307
R401
R404
C403
R402
R808
R547
R524
R520
R522
R520
R522
R536
JR18
R802
R908
R913
R523
R526
R521
R529
D920
R927
D914
D903
D904
D904
D801
D916
D915
D913
D919
C942
C515
R541
1805GX
JR21
JR32
R531
D506
R532
R540
R542
R537
R902
C902
JR1
JR27
JR28
R900
C820
R901
R525
JR22
R528
R527
R533
TH805
TH804
R534
R544
R545
R546
R539
C943
R932
R931
TH901
R914
JR17
R912
C903
R801
R926
R921
R923
R924
C927
R925
R803
JR20
JR19
R922
R928
IC903
JR30
D507
R530
R535
R519
C819
R840
R506
R834
R305
R302
R105
C104
R102
R833
R835
C816
R836
C817
R837
C818
JR2
C506
R306
R406
R207
R206
R106
R206
R106
R107
CN806
C406
JR8
C310
R314
R313
R312
R314
R313
R312
JR9
JR10
IC808
C948
R409
R437
R337
JR36 R412
R237
R137
JR35
R310
R410
R413
C306
C814
R308
JR7
R205
C204
R405
C404
C304
C405
R203
C205
JR3
R505
R602
R502
R503
R501
R601
C504
R504 JR40
C505
C503
C801
JR12
R810
C803
R839
R806
R827
C810
R819
CNP808
D803
Q805
D804
Q801
Q909
Q908
IC902
R909
R910
C904
R911
IC901
BCE
BCE
BCE
E CB
BCE
BCE
Q902
Q516
Q511
Q509
Q507
Q510
Q512
Q506
Q505
Q903
Q901
D901
Q508
D928
D921
Q910
Q905
Q904
Q911
D922
Q914
D923
BCE
BCE
IC809
IC806
IC801
1
4
8
5
1
1
5
4
8
5
1
1
10
4
8
5
IC807
1
4
8
5
BCE
D911
Q802
Q804
IC811
Q803
Q806
JW71
Q807
D912
1
8
18
9
4 3
1 2
B
C
E
Q407
Q406
Q405
Q416
C313
Q316
Q404
1
4
-2
-1
-1
-2
-2
-3
-4
-1
-2
8
5
1
8
18
9
3
4
2
1
11
04
S802
HPF
VR803
LEVEL
VR804
HPF
D908
R
GND
CN802
CN803
CN801
REM
+12V
F901
40A
L+R
SUB WOOFER
SPEAKER OUT
BTL
BTL
SPEAKER OUT
REAR
FRONT
L
R
L
(REAR)
VR805
LEVEL
(SUB WOOFER)
(REAR)
ON OFF
S803
MODE
(SUB WOOFER)
SUB WOOFER
REAR
INPUT
FRONT
F+R F
(REAR)
1
5
D918
D917
Q913
Q912
Q907
Q906
C932
C909
C918
C917
L902
L903
JW181
JW180
C418
C414
C314
TH802
C931
T901
T902
L901
PL801
R
L
R
L
R
L
CNJ805
CNP807
LED BOARD
CNJ808
HPF BOARD
CNJ806
AMP BOARD
2
LPF BOARD
CNJ807
3
1
1805GX
1805GX
1805GX
1505SX
1-680-818-
JW65
JW66
JW64
JW63
B1
E
B2
E
B2
C1
C2
B1
E
C2
E
C2
C1
C2
B1
E
B2
E
B2
C1
C2
B1
E
C2
E
C2
C1
C2
B1
E
B2
E
B2
C1
C2
B1
E
C2
E
C2
C1
C2
C2
C1
B2
E
B1
C2
C1
B2
E
B1
C1 C2
B1 B2
B1 B2
E
C1 C2
B1 B2
B1 B2
E
C1
E2
B2
E1
C2
B1
C1
E2
B2
E1
C2
B1
C1
E2
B2
E1
C2
B1
C1
E2
B2
E1
C2
B1
C1
E2
B2
E1
C2
B1
C1
E2
B2
E1
C2
B1
XM-1505SX/1805GX
5-2. PRINTED WIRING BOARD — AMP SECTION — • Refer to page 10 for Semiconductor Location.
(Page 14)
(Page 14)
(Page 14)
12
12
XM-1505SX/1805GX
5-3. SCHEMATIC DIAGRAM — AMP SECTION (1/2) —
(Page 15)
(Page 15)
(Page 15)
(Page 15)
(Page 13)
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