Read Sony XM-7557 (serv.man3) Service Manual online
XM-7557
7
7
• SCHEMATIC DIAGRAM – AMPLIFER SECTION (3/3) –
R811
470
R812
470
R809
680
R810
680
R807
470
R808
470
R805
680
R806
680
R801
680
R802
680
R803
470
R804
470
R815
2.2k
R816
470
R817
470
R818
470
R819
470
R821
10k
R820
10k
D805
R814
2.2k
D804
Q803
Q802
R813
2.2k
D803
D802
D801
Q801
OVERCURRENT
OFFSET
THERMAL
HI-CURRENT
HI-VOLTAGE
Q801-803
2SC2712-Y
SWITCH
7
7
1
1
CNB804 7P
CNP804 7P
Q703
2SB1375
POWER CONTROL
3
1
2
1
1
2P
3P
3P
2
3
1
CNB803
CNJ708
CNP708
CNP803
R712
470
R716
470
R744
4.3k
R745
1k
C718
22/16V
C719
470/10V
R715
47k
D706
RD12FB2
D707
02CZ5.6Y
Q714
2SC2713
R713 22k
R717
1k
R741
1k
Q701
2SA1358-Y
FN801
DC FAN MOTOR
Q702
2SC2712-Y
Q701, 702
FAN MOTOR
DRIVE
D707-711
11EFS2-TB5
D712-715
11EQS04-TA1B
46+
C745 0.01
C746 0.022
C747 0.022
Q706
2SC3074-Y
(TE16L)
INVERTER
D711
D710
D715
–14V
+14V
–34V
+34V
D714
D713
D712
D709
D708
Q705
2SC3074-Y (TE16L)
INVERTER
Q704
DRIVER-2SC2712-Y
DRIVER
TH701
T701
L701
BL01RN1-A62
0.45
µH
C721
100
50V
50V
C723
0.047
R723
10K
R726
10K
R729 10K
R721
10K
R724
10K
R727
10K
R725
1M
R722
10K
C725
220
16V
16V
C727
0.1
R720
1M
C724
220
16V
16V
C726
0.1
C720
100
50V
50V
C722
0.047
Q805
Q804-807, 809
2SC2712-Y
Q804-806
LED DRIVE
Q807, 808
OVER
CURRENT
Q809, 810
OFF SET
Q917, 918
DRIVER
Q804
R823
10k
R822
10k
Q806
R825
10k
R824
10k
C801
470P
470P
R828
10k
C803
22/16V
R826
3.3k
R829
3.3k
R833
3.3k
R827
10k
R831
10k
R830
10k
R832 47k
C805
22 16V
R835
68k
R834
3.3k
R836
1K
R837
10K
S801
MODE (HI-VOLTAGE HI-CURRENT)
Q807
Q808
Q808, 810
2SA1162-Y
Q810
Q809
C802
22
16V
C804
470P
470P
C948
0.001
D806
1SS184
-TE85L
IC813
PS2501-1-K
IC903
PS2501-1-K
FAN MOTOR
DETECT
Q811
2SC2712-Y
SWITCH
Q812
2SA1162-Y
SWITCH
D808
02CZ6.8-TE85L
D807
1SS184-TE85L
R838 33 1W
S802
10
1
10
1
CNB805 10P
CNP805 10P
Q707
2SC2712-Y
Q707-Q713
OFF SET
Q708
2SC2712-Y
Q709
2SA1162-Y
Q711
2SA1162-Y
R730
10K
Q713
2SA1162-Y
Q710
2SC2712-Y
C728
1000P C729 47/16V
R728
1M
Q712
2SC2712-Y
C730
1000P
C731
47/16V
R731
1M
C735
8200/35V
C738
8200/35V
C736
8200/35V
C737 8200/35V
C732
1000P
C733
47/16V
+28V
–28V
+28V
–28V
R951
4.7k
R952
220
D911
02CZ15-TE85L
D910
RD36FB2
Q919
2SC2712-Y
SWITCH
Q921
Q920
Q922
Q924
Q926
Q928
Q929
Q927
Q925
Q923
H905 22k
R961
22
R962
1k
R965
2.2
R967
2.2
R969
2.2
R959 1k
R957 220 1W
R958 220 1W
R955
150
R954
1k
R960
1k
R964
22
R966
2.2
R968
2.2
R970
2.2
R963
1k
C929
2200 16V
C930
2200 16V
C931
2200 16V
C932
2200 16V
T902
L904
BL01RN1-A62
0.45
µ
H
C935
220
35V
35V
C936
220
35V
35V
C947
0.001
C946
0.001
C911
0.1
R934
2.2
R932
2.2
R930
2.2
R927
1K
R928
1k
R929
22
R926
2.2
C913
2200 16V
C914
2200 16V
C915
2200 16V
C916
2200 16V
B+
B+
B+
B+
B+
B–
B–
B+
B+
B–
D912
FCH20A15
D913
FRH20A15
Q915
Q913
Q911-916 MTP75N06HD INVERTER
Q924-929 MTP75N06HD INVERTER
Q911
Q909
Q910
Q907
IC902
UPC494GS-T1
Q908
Q906
2SC2712-Y
SWITCH
D903
RD36FB2
D904
02CZ15-TE85L
D905
FCH20A15
D906
FRH20A15
IC901
PS2501-1-K
Q916
Q914
Q912
R924
1k
R923 220 1W
R925 1k
R922 220 1W
R920
150
C908 0.01
C909 22 16V
C910 1000P
R913 10k
R914 22k
R915 12k
R921
150
R919
1k
R931
2.2
R933
2.2
TH902
22k
C940 0.001
C941
0.001
R916
4.7k
R917
220
R935
2.2
R918
1k
R912 10K
R910
220k
C906
22 16V
C905 100 16V
R911
220
C907
100 10V
R909 680
TH901 22k
R908
3.3k
R904
1k
Q901
2SB1243-QR-TV2
B+ SWITCH
Q902
2SA1162-Y
POWER ON/OFF
Q903
2SC2712-Y
B+ SWITCH
Q904
2SC2712-Y
B+ SWITCH
Q918
2SC2712-Y
DRIVER
Q917
2SA1162-Y
DRIVER
Q905
2SC2712-Y
B+ SWITCH
R903
3.3k
R905
4.7k
R906
1.5K
R902
330
D902
02CZ5.1Y-TE85L
D907
1SS184-TE85L
D901
02CZ16-TE85L
R901
10k
C904
1000P
R907
4.7k
R939
10k
C921
1000P
R940
47k
R941
1k
R942
680
R937
10k
C924
22/16V
R945
220k
C925
100/10V
C923
100/16V
R946
220
R948
10k
R949
22k
C928 1000P
R950 12k
C926 0.01
C927
22/16V
IC904
UPC494GS-T1
R947
10k
R953
1k
R956
150
R943
22k
TH904
22k
TH903
22k
C922
0.01
R936
10k
R938
470k
D909
1SS184-TE85L
D908
1SS184
-TE85L
F903 25A
F904 25A
F901 25A
F902 25A
C902
1000P
C917
220 35V
C918
220 35V
L902
BL01RN1-A62
0.45
µ
H
T901
Q920, 921
2SB1238PQR-TV2
DRIVER
Q909, 910
2SD1859TV2Q
DRIVER
Q922, 923
2SD1859TV2Q DRIVER
D716
UDZ12B
GL-5ED60
GL-5ED60
GL-5ED60
GL-5ED60
GL-5ED60
+12V
+12V
GND
CN802 3P
REMOTE
CNJ801
1P
1
SUB WOOFER
3
4CH
C942
0.001
0.001
IC813
CONVERTER
IC904
CONVERTER
TEMPERATURE
DETECT
Q907, 908
2SB1238PQR-TV2
DRIVER
IC902
IC901
TEMPERATURE
DETECT
IC903
ON
OFF
NFB
B+
B+
B+
B+
B–
B–
B–
B–
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B–
B–
B–
B
–
B
–
B
+
B
+
B+
B
+
B
–
B–
AMPLIFIER BOARD
2P
C938
0.1
C943 0.001
TO AMPLIFIER BOARD (2/3)
TO
AMPLIFIER
BOARD (1/3)
TO
AMPLIFIER
BOARD (2/3)
C934
0.001
R743
20
R742
20
C759
0.047
9.5
10.1
11.8
9.4
9.4
–2.3
–2.4
12.7
0
0
12.7
12.7
–27.6
–27.6
0
12.7
0.2
–27.6
12.6
0.1
11.8
12.6
9.5
0
0
0
12.8
0
12.8
12.8
12.8
0.9
0.3
26.8
26.7
26
–22.5
23.8
0.2
2.5
5
0
0
12.9 11.8
0
12.8
12.8
0
0
0
0
0
0
0
0
5
5
12.7
12.8
5
5
2.5
0
–23.8
–25.8
12.8
12.8
0.4
12.8
–26.5
13.8
13.8
13.8
0.4
0.4
0.4
0.4
12.8
12.7
0.1
0.4
2.5
2.5
4
0.5
1.7
3.7
0
0
5
0.4
0.4
0.4
13.8
0.4
13.8
13.8
0.1
0.4
0.4
0.4
0.4
13.8
13.8
0.5
13.8
0.1
0.7
0.1
5.2
0
5.9
13.2
0
2.5
4
0.5
1.7
3.8
12.7
5.3
13.2
12.6
12.8
0.4
0.4
12.8
0.5
0.1
12.8
12.8
13.8
13.8
5
13.8
0.4
2.5
23.8
–24.1
–26.8
–26.2
–22.5
2.5
2.5
5
5
12.8
12.7
13.9
12.9
Click on the first or last page to see other XM-7557 (serv.man3) service manuals if exist.