Ir Power Amp Assy (5/6) - Pioneer SC-LX85 Service Manual
Audio/video multi-channel receiver
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Also See for SC-LX85:
- Operating instructions manual (122 pages) ,
- Service manual (9 pages) ,
- Quick start manual (104 pages)
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1
10.32 IR POWER AMP ASSY (5/6)
A
CN4700
V+12V
KM200IB5
C+
5
C-
4
GNDR 3
R4791
V+12R 2
2125
NM
V-12R 1
2125
R4792
NM
GND
V-12V
Q
CN3870
B
C
GND
R
1/6 - 3/6
*R4710
AMUTE
4.7k
R4711
C_IN
470
V+12V
*R5134
LIMIT1
R
*R5101
0
2/6
D
47k
GND
VD
V+64V
E
R4725
0.22
/5W
ACN7187-A
KN4517
KN4512
CKF1089-A
CKF1089-A
1
1
GNDS
R4726
0.22
/5W
ACN7187-A
V-64V
VS
F
R
5/6
156
1
2
CFHXSQ103J16-T
R4700
R4702
GND_C2
560
0.5%
5.6k
0.5%
C4704
NM
3.3k
C4705
NM
R4701
R4703
560
0.5%
5.6k
0.5%
CFHXSQ103J16-T
GND_C22
GND
V+5V
V+5VFILT7
R4771
0
GND
R4772
0
V-5V
V-5VFILT7
ACH1479-A-T
C4716 100u
V+12V
*R4744
*R4761
100
100
*R5142
GND
UPC4570G2-A
*R5136
22k
GND
*IC5101
*R5106
*IC5101
2
6
8
0
1
7
22k
4
3
5
UPC4570G2-A
22k
*R5137
GND
V-12V
GND
VD7
*R4776
0.047
ACN7195-A
V+12V
R
1/6 - 4/6,
*R4789
GND
6/6
27k
*Q4722
*R5129
LSA1576UB(QRS)
4.7
*D4720
*R5133
1SS352
1
LIMIT1
R
GND
*C4786
*R5130
0
10p/50
*R4784
*R4785
*R4713
10k
18k
0
*R4780
0.047
*C4784
ACN7195-A
470p/50
VS7
2
3
C4708
ACH7320-A
470u/16
C4709
0.01u/16
R4706
2125
0
V-12V
IC4702
(1/2)
3
4
UPC4570G2-A
C_IN
1
8
2
R4705
0.5%
C4707
NM
10k
C4714
1%
1%
V+12V
R4715
R4716
R4752
0.01u/16
5025
ACN7192-A
ACN7185-A
2125
0
47k
C4728
ACH7320-A
470u/16
V+5VFILT7
UPC4570G2-A
5
GNDS
7
6
IC4702
C4720
1000p/50
1
R4748
2
VDD
3.3k
3
1%
4
GND
IC4700
TLC071IDR
GND
V-5VFILT7
R
2/6
LIMIT+
R
2/6
LIMIT-
VD7
Q4708
LSC4081UB(QRS)
Q4710
R4766
R4767
2SA1514K(RS)
TEMP
10k
R4770
1%
1k
1%
GND
GND
2/6
SC-57
3
4
MODULATOR & MOS FET Driver
R
1/6 - 4/6, 6/6
PWM7
OSC1
1%
R4719
1k
Q4703
1%
LSC4081UB(QRS)
R4720
*C4724
220
0.1u/50
YB
GND
R
1/6
V+5VFILT7
AMPDISABLE4
R
1/6
GND
IREN_C
8
7
Q4706
R4722
6
LTC124EUB
1%
DTC115EUA-TLB
5
1k
GND
V+5V
*R4775
*Q4711
10
2
8
GND
LSA1576UB(QRS)
1
TEMP_OUT
4
1k
3
IC4704
R
1/6 - 4/6, 6/6
NJM12904V
GND
GND
IC4704
NJM12904V
6
7
5
GND
4
Q4705
IC4701
LTC124EUB
IRS20957SPBF
!
DRIVER
1
16
VDD
CSH
2
15
CSD
VB
3
14
IN
HO
4
13
VSS
VS
5
12
NC1
NC2
R4729
6
11
2125
VREF
VCC
1.8k
7
10
OCSET
LO
8
9
DT
COM
R4732
2125
5.6k
VSS+12V
R4747
1M
R4740
ACN7165-A
4.7u
L4704
NM
R4709
10k
The
!
with
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