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18
18
STR-KM7500
STR-KM7500
5-8. BLOCK DIAGRAM — MAIN SECTION —
R-CH (SBR)
R-CH (SBR)
R-CH (SR)
R-CH (SR)
R-CH (FR)
R-CH (FR)
R-CH (FR)
IC610, IC611
Q612, Q613
POWER AMP
Z
Y
STANDBY DCDC
SECTION
(Page 14)
STANDBY DCDC
SECTION
(Page 14)
IC608, IC609
Q608, Q609
POWER AMP
R-CH (SBR)
R-CH (SR)
6
SW
11
C
12
RC+15V
10
FL
9
FR
14
SBL
13
SBR
18
SL
+7V
1
-7V
2
17
SR
CN555
CN558
J521
SA-CD/CD/
CD-R
OUT
IN
IN
TV
VIDEO 1
R-CH
R-CH
R-CH
+7V
L-CH(V2)
R-CH(V2)
4
7
RCH
RCH
RCH
RCH
RCH
RCH
RCH
+15V
+15V
-7V
SWIN1
71
CIN1
70
FLIN1
INL1
INL1
72
63
63
SLIN1
68
SBLIN1
66
INL2
61
RECL1
INL7
INL8
29
51
49
J522
AUDIO IN
SAT
AUDIO IN
BD
R-CH
R-CH
INL9
INL11
47
43
J523
AUDIO OUT
AUDIO IN
R-CH
R-CH
RECL2
INL12
27
41
SUBWOOFER
RY441
J525
AUDIO OUT
OUTSW 15
3
VACS
7
MULTI-IN
6
DCAC
16
PROTECT
13
L-IN
11
R-IN
8
TUNER-L
DM-L
18
DM-R
17
DATA
4
CLK
5
9
TUNER-R
CN556
D582
INL5
INR5
INR5
59
55
56
56
ADCL
INL3
76
DA
10
INL6
53
CL
11
RY421
RY451
RY422
RY423
RY425
RY406
Q441
PROTECTOR
Q585
Q618, Q619
Q581-Q584
ELECTRICAL
VOLUME
IC551
Q614, Q615
Q626, Q627
PRE DRIVER
IC603
Q622, Q623
PRE DRIVER
IC600
Q602, Q603
Q606, Q607
PRE DRIVER
IC601
Q610, Q611
TB502
SURROUND
TB500
FRONT
SPEAKERS
SPEAKERS
R-CH
R-CH (FR)
TB503
SURROUND
BACK
CENTER
CN552
R-CH (SBR)
+15V
+15V
+15V
+15V
+15V
+15V
VCC
D407
VEE
RELAY DRIVER
Q421
RELAY DRIVER
Q422
FRONT A RY
SW PREOUT RY
4
5
6
C-SL-SR RY
7
SBR-SBL RLY
3
HR LY
8
BRIDGEABLE RY
1
1
3
5
HP DETECT
R-CH
L-CH
HP DETECT
CN554
FH003
FH004
4
5
2
1
R1 (UPPER TAP)
R1 (UPPER TAP)
R1 (LOWER TAP)
R1 (LOWER TAP)
CN551
RELAY DRIVER
RELAY DRIVER
Q406
CNP790
1
4
2
R-CH
PHONES
J790
+7V
-7V
CN553
F401
D401
D402
D403
D404
F402
1
3
R2 AC
R2 AC
IC412
+7V REG
IC413
-7V REG
POWER
TRANSFORMER
POWER
TRANSFORMER
OVERLOAD
DETECT
PRE DRIVER
IC602
OVERLOAD
DETECT
OVERLOAD
DETECT
OVERLOAD
DETECT
OVERLOAD
DETECT
OVERLOAD
DETECT
OVERLOAD
DETECT
PROTECTOR
Q451
RELAY DRIVER
Q425
RELAY DRIVER
CONNECTION
SECTION
(Page 17)
E
CONNECTION
SECTION
(Page 17)
D
DISPLAY
SECTION
(Page 11)
C
DIGITAL SECTION
(1/2)
(Page 15)
N
OUTSBR 19
OUTC 16
OUTSBL 20
OUTSL 18
OUTSR 17
OUTFL 14
OUTFR 13
12
11
8
6
2
3
2
3
8
8
6
11
11
12
12
8
6
2
3
11
12
IC612, IC613
Q616, Q617
POWER AMP
RELAY DRIVER
Q423
R-CH (SR)
IC614, IC615
Q620, Q621
POWER AMP
IC616, IC617
Q624, Q625
POWER AMP
IC604, IC605
Q600, Q601
POWER AMP
IC606, IC607
Q604, Q605
POWER AMP
SLJQDO SDWK
: AUDIO
R-FK LV RPLWWHG GXH WR VDPH DV L-FK
Ver. 1.4
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