Sony XM-1004GX / XM-754SX Service Manual ▷ View online
9
9
3
2
1
5
6
7
3
2
1
3
2
1
3
1
6
7
2
1
PRE AMP
IC801(1/2)
PHASE AMP
IC802(1/2)
5
6
7
3
2
1
LOW BOOST
IC806(2/2)
LINE AMP
IC806(1/2)
H.P.F
IC803(1/2)
L.P.F
IC804(2/2)
L.P.F
IC804(1/2)
DIFFERENTIAL
AMP
Q103
POWER
AMP
Q109
DRIVE
AMP
Q107
DIFFERENTIAL
AMP
Q104
POWER
AMP
Q110
DRIVE
AMP
Q108
BIAS
Q111
LEVEL
SHIFT
Q101
LEVEL
FILTER
S801-1
LPF
OFF
HPF
LEVEL
RV802-1
LOW
BOOST
B+
(+14.2V)
B-
(-14.2V)
B+
(+14.2V)
B-
(-14.2V)
CNJ100-1
CNJ100-2
CN101
RV807-1
PHASE
1004GX
RV801-1
FILTER
RV801-2
FILTER
RV803-1
LINE
SWITCH
Q102
12V
GND
10
7
5
6
7
5
7
2
1
6
7
PRE AMP
IC801(2/2)
PHASE AMP
IC802(2/2)
5
6
7
3
2
1
LOW BOOST
IC807(2/2)
LINE AMP
IC807(1/2)
H.P.F
IC803(2/2)
L.P.F
IC805(1/2)
L.P.F
IC805(2/2)
DIFFERENTIAL
AMP
Q203
POWER
AMP
Q209
DRIVE
AMP
Q207
DIFFERENTIAL
AMP
Q204
SWITCH
CONTROL
Q801,802
POWER
AMP
Q210
DRIVE
AMP
Q208
BIAS
Q211
LEVEL
SHIFT
Q201
RV802-2
LOW
BOOST
RV807-2
PHASE
RV801-3
FILTER
RV801-4
FILTER
L
HIGH
LEVEL
R
L
(BTL)
FRONT
INPUT
R
CN810
L
L+R
R
RV803-2
LINE
SWITCH
Q202
RV204
BIAS
RV104
BIAS
15
16
1
2
14
12
TEMP.DET
TH801-805
REF.
REG
REG
CN800
F901
INVERTER
Q904,905
INVERTER
Q906,907
DRIVER
Q908
DRIVER
Q909
11
9
8
3
D811
THERMAL
D810
OFF SET
FRONT
SPEAKER
OUT
D808
POWER
D809
OVER
CURRENT
DC-DC
CONVERTER
TRANSFORMER
T801
DC-DC CONVERTER
IC901
SWITCH
Q808
• Signal path
: AUDIO
: AUDIO
04
2
1
REG
Q901,902
1004GX
FILTER
S801-2
LPF
OFF
HPF
(40Hz)
(40Hz)
DRIVE
AMP
Q105,106
POWER
AMP
Q113
DRIVE
AMP
Q205,206
POWER
AMP
Q213
OVER LOAD
DET
Q112
OVER LOAD
DET
Q112
CN811
L
BTL
R
REAR
SPEAKER
OUT
6
5
CNJ100-3
CNJ100-4
CN201
L
HIGH
LEVEL
R
L
(BTL)
REAR
INPUT
R
REMOTE
CN803
B+
REG
Q910
B-
REG
Q911
B+
(+23.5V)
B+
(+42V)
B+
(+36V)
B+
(+36V)
B-
(-35V)
B-
(-35V)
B-
(-42V)
B-
(-14.2V)
B+
(+14.2V)
LED DRIVE
Q812,813
LED DRIVE
Q810,811
OFFSET
DET
Q803-805
LED DRIVE
Q809
POWER
ON/OFF
Q903
DC DET
IC902
D903
D905
D906
D904
D917
D911
D912
D918
D905,906
RECT
D911,912
RECT
D903,904
RECT
D917,918
RECT
D909
D907
D908
D910
D907-910
RECT
TEST TONE
GENERATOR
IC815
(FRONT)
(REAR)
1004GX
1004GX
XM-754SX/1004GX
4-1. BLOCK DIAGRAM
SECTION 4
DIAGRAMS
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 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
C-10
Q206
C-10
Q207
D-10
Q208
D-10
Q209
C-11
Q210
D-11
Q211
D-11
Q212
C-12
Q213
B-11
Q301
G-4
Q302
F-3
Q303
D-3
Q304
D-4
Q305
D-3
Q306
C-3
Q307
D-3
Q308
D-3
Q309
C-1
Q310
D-1
Q311
D-1
Q312
C-1
Q313
B-1
Q401
G-4
Q402
F-3
Q403
E-3
Q404
E-4
Q405
E-3
Q406
D-3
Q407
E-3
Q408
E-3
Q409
E-1
Q410
F-1
Q411
F-1
Q412
F-1
Q413
E-1
Q801
E-7
Q802
E-7
Q803
B-12
Q804
B-12
Q805
C-12
Q809
G-10
Q810
G-12
Q811
G-12
Q812
G-12
Q813
G-12
Q901
F-9
Q902
F-9
Q903
G-9
Q904
A-8
Q905
A-7
Q906
A-6
Q907
A-5
Q908
A-7
Q909
A-6
Q910
E-6
Q911
E-5
D801
E-7
D802
E-7
D805
F-10
D812
E-7
D813
F-7
D820
F-10
D821
F-9
D822
F-12
D823
F-12
D824
F-12
D825
D-12
D826
D-1
D827
F-1
D901
G-9
D902
G-9
D903
D-6
D904
D-5
D905
D-7
D906
D-7
D907
A-9
D908
A-8
D909
A-4
D910
A-4
D911
D-7
D912
D-7
D913
E-6
D914
E-5
D917
D-5
D918
D-5
IC801
F-6
IC806
G-7
IC807
G-7
IC808
F-5
IC813
G-3
IC814
G-4
IC815
E-7
IC901
F-10
IC902
E-9
Q101
G-8
Q102
D-8
Q103
E-9
Q104
E-9
Q105
D-10
Q106
E-10
Q107
E-10
Q108
E-10
Q109
E-11
Q110
F-11
Q111
F-11
Q112
E-12
Q113
E-11
Q201
G-7
Q202
D-7
Q203
D-10
Q204
D-9
• Semiconductor Location (MAIN SECTION)
Ref. No.
Location
Ref. No.
Location
11
11
XM-754SX/1004GX
4-2. PRINTED WIRING BOARD — MAIN SECTION — • Refer to page 10 for Semiconductor Location.
(Page 15)
(Page 15)
(Page 15)
12
12
XM-754SX/1004GX
4-3. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) —
(Page 13)
(Page 14)
(Page 14)
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