Block Diagram - Display/Power Section - Sony STR-K675P Service Manual

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3-2. BLOCK DIAGRAM — DISPLAY/POWER SECTION —
• R-CH is omitted due to same as L-CH
• Signal Path
: FM
MAIN
A
SECTION
FL101
FLUORESCENT
INDICATOR TUBE
F1
F2
14 29
42 31
SEG1-16
GRID1-12
IC100
FL DRIVE
7
8
9
IC101
BUFFER
59 60 57
82
83
38
39
40
X1101
24MHz
FUNCTION
FUNCTION
FUNCTION
KEY
KEY
KEY
S131-139
S100-108
S110-116
STR-K675P
IC501
POWER AMP
Q503
+V OUT2
12
BOOSTER
Q501,502
LIMITER
L
8
IN2
NF2
9
Q505,506
Q504
-V OUT2
11
CURRENT
BOOSTER
DETECT
IC601
POWER AMP
Q603
+V OUT2
12
BOOSTER
Q601,602
LIMITER
SL
SL
8
IN2
NF2
9
Q605,606
Q604
-V OUT2
11
CURRENT
BOOSTER
DETECT
POWER AMP
IC701
Q703
+V OUT2
12
BOOSTER
Q701,702
LIMITER
C
8
IN2
NF2
9
Q705,706
Q704
CURRENT
-V OUT2
11
BOOSTER
DETECT
D883
62
66
69
68
61
SYSTEM CONTROL
IC1101(3/3)
46 45
56
3
1
S152
ENCODER
?/1
RV102
MASTER
VOLUME
RY502
Q509
RELAY
DRIVE
RY501
D731
Q507
Q508
AF POWER
RELAY
DRIVE
PROTECT
RY601
Q607
D733
Q608
AF POWER
RELAY
PROTECT
DRIVE
RY701
Q707
D734
Q708
AF POWER
RELAY
PROTECT
DRIVE
Q881-883
PROTECT
SWITCH
55
FUSE DETECT
63
IC102
REMOTE
1
SIRCS
54
CONTROL
RECEIVER
AVCC
35
VCC3
84
VCC5
23
RSTX
77
1
STOP
48
58
11
11
R-CH
J700
PHONES
TM600
L
FRONT
R-CH
R
C
CENTER
SPEAKERS
TM602
R-CH
SR
SURROUND
SL
+3.3V
+2.5V
+5V
+B
-B
Q851,852
POWER AMP
-B
-B
SWITCH
IC850
IC850
2
1
5
7
FL101
Q801
-20V
-20V REG
RELAY
+B
IC821
AUDIO
+7V
1
3
+7V
REG
Q471
+3.3V
+3.3V REG
IC822
AUDIO
-7V
3
2
-7V
REG
IC1001
IC1902
AUDIO
+5V
TUNER
+10V
3
1
3
1
+5V
REG
+10V
REG
+3.3V(STBY)
IC1904
+3.3V
3
1
REG
IC1111
RESET
2
Q911
AC DET
STR-K675P
IC1901
+3.3V
2
REG
4
+2.5V
5
REG
D804-807
T901
IC1031
+5V
3
1
REG
D811
D920-923
F1
F2
F901
T902
D910-913
D914
D915
RY901
Q901
RELAY
DRIVE
AC
IN

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