Pioneer S-DV77 Service Manual - Page 12
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1
S-DV77, S-DV77SW, S-DV77ST
3. BLOCKDIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM AND OVERALL CONNECTION DIAGRAM
A
B
C
FAN DET.
Circuit
GNDF
D
12
1
2
IC3601
TDA7294V
14
1
4
1A
IC3621
6
7
10
11
IC3401
STK402-240
15
1
Peripheral
Circuit
V+BL
RY3361
RLC1
8
IC3301
10
RY3361
11
RLC1
STK402-040
9
RLC1 RLC2
V+12R
V+12R
AC
V–BL
RYFS
Peripheral
FDET
Relay Cont.
RYFR
Circuit
Circuit
XMUTE
GNDF GNDB
V–12R
B
AMP ASSY ( AWU7827 )
2
3
GNDALR
V+BL
XMUTE
7,9,10,13
RYFS
RYRC
SWMUTE
2
V+12R
SWMUTE
V+5A
8,15
V–BL
FDET
AC
V+BL
19
8
18
15
13
9
V–12R
V–BL
GND FAN
6
7
V–BL
1
13
15
1A
V+BL
IC3321
GNDALR
AKM7067
3
4
To SIDEL ASSY
CN3703
CN3702
IC3151
7
5
3
1
IC3161
IC3001
7
5
FL
31
E-VOL
FR
32
C
IC
33
1
3
SL
34
SR
35
SW
36
M62446FP
IC3171
37
1
3
38
39
7
V+5D
40
5
41
42
V+5A
V–12R
V+5A
V+12A
V+5D
V+12R
D31
Q61/D61
IC51
+5V
+12V
Reg.
Reg.
NJM7812FA
IC52
–12V
Reg.
NJM7912FA
V–12A
V–12R
4
To
+
1
–
+
7
FL
17
–
16
FR
IC3
C
11
+
1
–
SL
9
8
+
SR
SW
7
–
6
IC3
3
+
1
2
–
1
+
7
–
IC
Q3092
Q3091
AF ASS
( DB,YP
( DL : A
D41
D3SBA2
D3SBA
D11
S1WB(A)60SD