Pioneer SC-LX85 Service Manual page 53

1
DC Detection
A
R
IR POWER AMP ASSY
R
4/6
DC_DETECT5
R
6/6
DC_DETECT4
B
R
3/6
DC_DETECT3
R
2/6
DC_DETECT1
9ch
DC_DETECT2
R
5/6
C
IC4201 !
D
IC4101
IRS20957SPBF
DRIVER
1
VDD
2
CSD
3
IN
4
VSS
5
NC1
6
VREF
7
OCSET
8
DT
R4132
2125
5.6k
E
DISPLAY
K
ASSY
CN3001
-14
80
UCOM
IC3001
F
44
1
2
HN1C01FU(YGR)
Q4029
6 1
C1 E1
5 2
B2 B1
4 3
E2 C2
GND
HN1C01FU(YGR)
Q4028
6 1
C1 E1
5 2
B2 B1
4 3
E2 C2
HN1C01FU(YGR)
GND
Q4027
6 1
C1 E1
5 2
B2 B1
4 3
E2 C2
HN1C01FU(YGR)
GND
Q4014
6 1
C1 E1
5 2
B2 B1
4 3
E2 C2
GND
HN1C01FU(YGR)
Q4016
6 1
C1 E1
R4017
5 2
B2 B1
0
4 3
E2 C2
GND
VD2
D4117
RF051VA2S
!
Q4101
IRF6775MPBF-TRB
R4137
GATE DRAIN1
3216
!
9.1 3 4
DRAIN2
ACN7194-A
5
16
SOURCE2 DRAIN3
CSH
2 6
15
SOURCE1 DRAIN4
VB
1 7
14
HO
13
VS
12
NC2
!
11 Q4102
VCC
IRF6775MPBF-TRB
R4141
10
GATE DRAIN1
LO 3216
9.1 3 4
9
DRAIN2
ACN7194-A
COM
5
SOURCE2 DRAIN3
2 6
SOURCE1 DRAIN4
1 7
F
CN7652 CN7651
-26 -14
DISPLAY BRIDGE
AE
ASSY
2
3
V+5V
GND
GND GND
GND
2
8
1
R4069
4
3
NM
GND R4070
NM
GND
IC4401
! IC4601
IC4301 IC4501
!
R R R
2/6 3/6
DIGITAL MAIN
ASSY
CN601 CN602 CN7802
-26 -15 -15
CONNECT
X
ASSY
SC-57
3
4
R4026
R4023 100
100
GND
DCdetRY
DC DETECT
LSA1576UB(QRS)
CIRCUIT
Q4020
Q4021
LSC4081UB(QRS)
IC4000
NM
(1/2)
GND
! IC4701 ! IC4801 !
IC4901
! !
R R
4/6 5/6 6/6
INTERFACE
G
ASSY
CN7804 CN7004 CN7006
-7 -7 -3
4
CN4000
-17
XDCERR
XDCERR