
13
13
STR-K1000P
STR-K1000P
3-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –
• R-CH is omitted due to same as L-CH.
POWER AMP
IC701
POWER AMP
IC601
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
LIMITER
Q571,572
BOOSTER
Q533
BOOSTER
Q534
CURRENT
DETECT
Q535,536
D721
PROTECT
SWITCH
Q722,723,725
RELAY
DRIVE
Q790
RY791
RELAY
DRIVE
Q710
RY701
D731
RELAY
DRIVE
Q610
RY601
RY610
D733
RELAY
DRIVE
Q810
RELAY
DRIVE
Q550
RY501
D734
L
R
SR
SL
C
R-CH
R-CH
R-CH
PHONES
TM601
TM610
RV102
ENCODER
3
1
46
45
56
?/1
S131
IC102
D910-913
AC
IN
T902
RY901
E51
D915
F901
D914
RELAY
DRIVE
Q901
D920-923
AUDIO
+7V
IC801
IC802
58
RELAY
+B
D805-808
82
83
X1101
24MHz
F1
F2
L
SL
SL
C
SBL
J791
FLUORESCENT
INDICATOR TUBE
FL101
14 29
42 31
F1
F2
FL DRIVE
IC100
D101-104
FUNCTION
KEY
38
S100-108,
S110
S140-143,
S148-153
FUNCTION
KEY
39
FUNCTION
KEY
40
S120-125,
S128-130
• Signal Path
: FM
AF POWER
PROTECT
Q640
AF POWER
PROTECT
Q540
AF POWER
PROTECT
Q580
IC691
2
1
FRONT A
FRONT B
SURROUND
IC691
5
7
IC1904
AUDIO
-7V
TUNER
+10V
IC1902
RY801
T901
Q921
AC DET
IC1111
D802
+B
-B
-B
SWITCH
Q691,692
RELAY
DRIVE
Q809
-20V REG
Q801
FL101
-20V
POWER AMP
-B
IC1031
+5V
+2.5V
IC1901
+3.3V
IC1001
AUDIO
+5V
SPEAKERS
MASTER
VOLUME
+3.3V(STBY)
S901
VOLTAGE
SELECTOR
TM501
CENTER
SB
SURROUND
BACK
Q110
LED DRIVE
47
MUMLTI CHANNEL
DECODING
D105