Display/Power Section - Sony STR-K660P Service Manual
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Also See for STR-K660P:
- User manual (36 pages) ,
- Operating instructions (2 pages) ,
- Limited warranty (1 page)
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Q Q
– DISPLAY/POWER SECTION –
3 7 6 3 1 5 1 5 0
L
• R-CH is omitted due to same as L-CH
• Signal Path
: FM
SL
SL
A
C
FL101
FLUORESCENT
INDICATOR TUBE
SW
T E
L
1 3 9 4 2 2 9 6 5 1 3
F1
F2
IC100
FL DRIVE
D102-105
14 29
42 31
SEG1-16
GRID1-12
SW1
1
SW2
2
SW3
3
SW4
4
7
8
9
IC101
BUFFER
61 62 63
82
83
38
39
40
X1601
16MHz
w w w
FUNCTION
FUNCTION
FUNCTION
KEY
KEY
KEY
S131-135,
S100-104,
S122-123,
S151
S108
S126-128
.
IC701
POWER AMP
Q703
+V OUT2
12
BOOSTER
Q701,702
LIMITER
8
IN2
NF2
9
Q705,706
Q704
-V OUT2
11
CURRENT
BOOSTER
DETECT
IC702
POWER AMP
Q653
+V OUT2
12
BOOSTER
Q651,652
LIMITER
8
IN2
NF2
9
Q655,656
Q654
-V OUT2
11
CURRENT
BOOSTER
DETECT
POWER AMP
IC501
Q503
+V OUT
6
BOOSTER
Q501,502
LIMITER
1
IN+
IN-
2
Q505,506
Q504
-V OUT
5
CURRENT
BOOSTER
DETECT
WOOFER AMP
IC503
Q573
+V OUT
6
BOOSTER
Q572
LIMITER
1
IN+
IN-
2
Q575,576
Q574
-V OUT
5
CURRENT
BOOSTER
DETECT
D721
Q722,723,725
PROTECT
SWITCH
67
71
69
70
66
SYSTEM CONTROL
IC1601(3/3)
41
59 60
56
3
1
S152
FUNCTION
ENCODER
KEY
?/1
S110-115
RV102
x
a o
y
MASTER
VOLUME
i
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8
R-CH
RY791
Q790
RELAY
DRIVE
RY701
D731
Q740
Q710
RELAY
R-CH
AF POWER
DRIVE
PROTECT
R-CH
RY601
Q640
D733
Q610
AF POWER
RELAY
DRIVE
PROTECT
RY501
D734
Q540
Q550
AF POWER
RELAY
PROTECT
DRIVE
Q
Q
3
7
6
3
IC601
IC601
2
1
5
25
FUSE DETECT
55
IC102
REMOTE
SIRCS
54
1
CONTROL
RECEIVER
AVCC
35
+3.3V(STBY)
VCC3
84
VCC5
23
IC1602
RSTX
77
1
RESET
2
STOP
48
65
B
RESET
u 1 6 3
.
13
13
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2
4
9
9
8
J791
PHONES
TM602
L
FRONT
R
C
CENTER
SPEAKERS
TM601
SR
SURROUND
SL
SUB
SW
WOOFER
IC1901
+3.3V
+3.3V
2
REG
4
+2.5V
+2.5V
5
REG
D812-815
IC1903
+5V
+5V
3
1
REG
1
5
1
5
0
8
9
2
4
D802
+B
-B
Q691,692
POWER AMP
-B
-B
SWITCH
7
FL101
Q801
-30V
-30V REG
D820-823
RELAY
+B
IC801
AUDIO
+7V
1
3
+7V
REG
Q471
+3.3V
+3.3V REG
IC802
AUDIO
-7V
3
2
-7V
REG
IC1503
IC1902
AUDIO
+5V
TUNER
+10V
3
1
3
1
+5V
REG
+10V
REG
IC1904
+3.3V
3
1
REG
Q921
AC DET
m
c o
STR-K660P
2
9
9
T901
9
8
2
9
9
E51
S901
F1
VOLTAGE
SELECTOR
F2
F901
T902
D910-913
AC
IN
D914
D915
RY901
Q901
RELAY
DRIVE
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