13
13
STR-K660P
– DISPLAY/POWER SECTION –
• R-CH is omitted due to same as L-CH
POWER AMP
IC701
POWER AMP
IC702
LIMITER
Q701,702
BOOSTER
Q703
BOOSTER
Q704
CURRENT
DETECT
Q705,706
AF POWER
PROTECT
Q740
LIMITER
Q651,652
BOOSTER
Q653
BOOSTER
Q654
CURRENT
DETECT
Q655,656
POWER AMP
IC501
LIMITER
Q501,502
BOOSTER
Q503
BOOSTER
Q504
CURRENT
DETECT
Q505,506
WOOFER AMP
IC503
LIMITER
Q572
BOOSTER
Q573
BOOSTER
Q574
CURRENT
DETECT
Q575,576
D721
PROTECT
SWITCH
Q722,723,725
RELAY
DRIVE
Q790
RY791
RELAY
DRIVE
Q710
RY701
D731
RELAY
DRIVE
Q610
RY601
D733
RELAY
DRIVE
Q550
RY501
D734
L
R
SR
SL
SW
C
R-CH
R-CH
R-CH
PHONES
TM601
TM602
RV102
ENCODER
3
1
59
60
56
?/1
S152
IC102
D910-913
AC
IN
T902
RY901
E51
D915
F901
D914
RELAY
DRIVE
Q901
D820-823
AUDIO
+7V
IC801
IC802
65
RELAY
+B
D812-815
82
83
X1601
16MHz
F1
F2
L
SL
SL
C
SW
J791
FLUORESCENT
INDICATOR TUBE
FL101
7
8
9
F1
F2
FL DRIVE
IC100
D102-105
FUNCTION
KEY
38
S100-104,
S108
S131-135,
S151
FUNCTION
KEY
39
FUNCTION
KEY
40
S122-123,
S126-128
FUNCTION
KEY
41
S110-115
RESET
• Signal Path
: FM
AF POWER
PROTECT
Q640
AF POWER
PROTECT
Q540
IC601
2
1
FRONT
SURROUND
SUB
WOOFER
CENTER
IC601
5
7
IC1904
AUDIO
-7V
TUNER
+10V
IC1902
T901
+3.3V REG
Q471
Q921
AC DET
IC1602
+3.3V
D802
+B
-B
-B
SWITCH
Q691,692
-30V REG
Q801
FL101
-30V
POWER AMP
-B
IC1903
+5V
+2.5V
IC1901
+3.3V
IC1503
AUDIO
+5V
SPEAKERS
MASTER
VOLUME
+3.3V(STBY)
S901
VOLTAGE
SELECTOR
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299