Pioneer SC-82 Service Manual page 38

1
DC Detection
R
D AMP_SS ASSY
A
R
4/6
DC_DETECT5
DC_DETECT4
R
6/6
DC_DETECT3
R
B
3/6
C
IC4201
IC4203
IC4101
IRS2092SPBF
DRIVER
1
VAA
2
GND
3
IN-
4
COMP
R4189 5 CSD
D
120
6 VSS
R4129
7
VREF
2125
2.2k
8 OCSET
GNDS
V-5V_CSD V-5VFILT2
VSS+12V
R4104
R4140
NM
47
E
R4109
22k
K
DISPLAY ASSY
CN6001
-32
21
UCOM
IC6001
F
38
1
2
HN1C01FU(YGR)
Q4029
6 1
R6440
C1 E1
0
5 2
B2 B1
4 3
E2 C2
NM
*Q4028
6 1
GND_DC
C1 E1
*R6439
5 2
B2 B1
4 3
NM
E2 C2
HN1C01FU(YGR)
GND_DC
Q4027
6 1
C1 E1
R6438
5 2
B2 B1
4 3
0
E2 C2
HN1C01FU(YGR)
Q4014
GND_DC 6
C1
R6437
5
DC_DETECT1
B2
4
0
E2
R
2/6
GND_DC
HN1C01FU(YGR)
Q4016
6
C1
DC_DETECT2
R4017
5
B2
10
4
R
5/6
E2
GND_DC
!
VD2
D4117 R4186
2125
RF071M2S 100
!
Q4101
!
IRF6775MPBFS1-TRB
R4137
GATE DRAIN1
3216
10 3 4
DRAIN2
ACN7165-A
5
16
SOURCE2 DRAIN3
CSH
2 6
15
SOURCE1 DRAIN4
VB
1 7
14
HO
13
VS
12 Q4102 !
IRF6775MPBFS1-TRB
VCC
R4141
11
GATE DRAIN1
3216
LO
10 3 4
10
DRAIN2
ACN7165-A
COM
*R4132 5
9
SOURCE2 DRAIN3
2125
DT
9.1k 2 6
SOURCE1 DRAIN4
1 7
VS2
!
V
V-REG_S ASSY
CN7903
-8
2
3
R4026
R4023 120
100
GND
V+5V_S
2SA1576A(QRS)
1
E1
2
B1
3
C2
GND_DC
R4864
10
1
E1
2
B1
3
C2 GND_DC
IC4401
!
IC4403
ATH7090-A
L4100
PWM2
IC4301
!
IC4302
R R
2/6 3/6
CN7661
-25
SC-82
3
4
DCdetRY
DC DETECT
Q4020
CIRCUIT
Q4021
2SC4081(QRS)
GND_DC
IC4601
IC4701 IC4801
! ! ! ! !
IC4603 IC4703 IC4803
IC4501 IC4901
! IC4902 !
IC4502
(AWX1922, AWX1923,
AWX1924, AWX1925
only )
R R R
4/6 5/6 6/6
G
INTERFACE_S ASSY
CN7012 CN7006
-25 -3
XDCERR
4
CN4000
-17
XDCERR