Read Sony XM-7547 (serv.man2) Service Manual online
XM-7547
7
7
• BLOCK DIAGRAM – POWER SECTION –
7
8
9
2
5
6
10
3
4
CNB805
CN802
CNJ801
TO
AMPLIFIER
BOARD
CNP805
BATTERY
GND
REMOTE
BATTERY
5
4
7
6
3
1
3
1
CNP804
POWER BOARD
OFFSET CONTROL
Q809-810
OFFSET LED
SET
Q804
THERMAL DETECTOR
(For H,S)
TH903
THERMAL DETECTOR
(For TRANS)
TH904
NFB
S802
SWITCH
Q901-902
SWITCH
Q904
SWITCH CTL
Q903
THERMAL
CONTROL
CONTROL
Q918
THERMAL
SWITCH
Q917
THERMAL
LED SWITCH
Q806
11
10
1
2
15
16
3
8
9
12
14
REF-REG
THERMAL SWITCH
TH905,Q919
DRIVER
Q921
INVERTER
Q924,926,928
DRIVER
Q920
INVERTER
Q925,927,929
T902
SWITCHING
CONTROL
Q922-923
Q922-923
11
10
1
2
15
3
8
9
12
14
REF-REG
DRIVER
Q908
INVERTER
Q911,913,915
DRIVER
Q907
INVERTER
Q912,914,916
T901
SWITCHING
CONTROL
Q909-910
Q909-910
THERMAL SWITCH
TH902,Q906
SWITCH
Q905
D901
F903 (25A)
F904 (25A)
F901 (25A)
F902 (25A)
S801-1
HI-V
HI-C
+28V
-28V
TO
AMPLIFIER
BOARD
AMPLIFIER
BOARD
+28V
-28V
TO
AMPLIFIER
BOARD
AMPLIFIER
BOARD
D905
D912
D913
D906
IC903
DC DET
IC901
DC DET
DC-DC
CONVERTER
IC904
DC-DC
CONVERTER
IC902
THERMAL
DET
TH901
D904
D903
OVER CURRENT
CONTROL
Q807-808
Q807-808
OVER CURRENT
LED SWITCH
Q805
D908
D909
OR
D806
OR
OR
D907
16
MUTE CONTROL
D808,Q811
MUTE SWITCH
Q812
OFF
ON
S801-3
MODE
HI-V
HI-C
S801-4
D911
D910
MUTE ENABLER
IC813
D801
HI-VOLTAGE
D802
HI-CURRENT
D803
OVER CURRENT
G
G
G
R
D804
OFFSET
G
R
D805
THERMAL
G
R
B+
Q801
SWITCH
Q802
SWITCH
Q803
SWITCH
CNB804
LED BOARD
09
MODE
MODE
S801-2
D911
HI-V
HI-C
MODE
+12V
+12V
2
1
3
4
2
1
3
4
B +
B –
B +
B –
HI-V
HI-C
4
3
1
2
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