Ir Power Amp Assy (6/6) - 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
10.33 IR POWER AMP ASSY (6/6)
A
CN4800
V+12V
KM200IB5
SBR+
5
SBR-
4
GNDR
3
R4891
V+12R
2
2125
NM
V-12R
1
2125
R4892
NM
GND
V-12V
Q
CN3820
V+12V
B
CN4900
XKP3062-A
SBL+
1
GND
SBL-
2
GNDL
3
R4991
V+12L
4
2125
NM
V-12L
5
2125
R4992
NM
V-12V
Q
CN3810
C
GND
SBR_IN
SBL_IN
R
1/6
SBMUTE
GND
D
V+64V
KN4518
E
CKF1089-A
1
GNDS
V-64V
F
R
6/6
158
1
2
CFHXSQ103J16-T
R4800
R4802
GND_C3
680
0.5%
5.6k
0.5%
C4804
NM
3.3k
C4805
NM
R4801
R4803
680
0.5%
5.6k
0.5%
CFHXSQ103J16-T
GND_C33
R4900
R4902
0.5%
680
5.6k
0.5%
C4904
NM
C4905
NM
R4901
R4903
5.6k
680
0.5%
0.5%
V+5V
V+5VFILT9
R4871
0
GND
R4872
0
V-5V
V-5VFILT9
*R4810
4.7k
ACH1479-A-T
R4811
C4816 100u
470
ACH1479-A-T
R4911
C4916 100u
470
*R4910
4.7k
V+5V
V+5VFILT8
R4971
0
GND
R4972
0
V-5V
V-5VFILT8
VD
R
ACN7187-A
VD9
ACN7187-A
VD8
0.22
/5W
0.22
/5W
R4825
R4925
R4826
R4926
0.22
/5W
0.22
/5W
ACN7187-A
ACN7187-A
VS9
VS8
VS
The
!
mark found on some component parts should be replaced
with same parts(safety regulation authorized) of identical
designation.
2
3
C4808
ACH7320-A
470u/16
C4809
0.01u/16
R4806
0
2125
V-12V
IC4802
(1/2)
3
4
UPC4570G2-A
SBR_IN
1
8
2
R4805
0.5%
C4807
NM
10k
C4909
1%
1%
V+12V
R4815
R4816
R4906
0.01u/16
ACN7192-A
ACN7185-A
2125
0
47k
C4908
ACH7320-A
470u/16
UPC4570G2-A
V+5VFILT9
GNDS
5
SBL_IN
7
6
IC4802
R4905
3.3k
0.5%
C4907
NM
C4820
1000p/50
1
R4848
2
3.3k
3
1%
4
GND
IC4800
TLC071IDR
GND
V-5VFILT9
10k
1%
1%
R4915
R4916
ACN7192-A
ACN7185-A
47k
V+5VFILT8
GNDS
C4920
1000p/50
1
R4948
2
3.3k
3
1%
4
GND
IC4900
TLC071IDR
GND
V-5VFILT8
VD9
1/6 - 5/6
Q4808
LSC4081UB(QRS)
Q4810
R4866
R4867
2SA1514K(RS)
TEMP
10k
1k
1%
1%
VD8
GND
GND
Q4910
R4966
2SA1514K(RS)
R4970
R4967
10k
1%
Q4908
1k 1%
LSC4081UB(QRS)
1k
GND
GND
SC-57
3
4
PWM9
R
1/6 - 5/6
OSC1
1%
R4819
1k
Q4803
1%
LSC4081UB(QRS)
R4820
*C4824
220
0.1u/50
YB
GND
R
1/6
V+5VFILT9
AMPDISABLE3
R
1/6
GND
IREN_SBLR
8
DTC115EUA-TLB
7
VDD
Q4806
R4822
6
LTC124EUB
1%
DTC115EUA-TLB
5
1k
GND
R
1/6 - 5/6
PWM8
OSC1
1%
R4919
1k
Q4903
1%
LSC4081UB(QRS)
R4920
*C4924
R
220
0.1u/50
1/6
YB
GND
AMPDISABLE3
V+5VFILT8
R
1/6
GND
IREN_SBLR
8
DTC115EUA-TLB
7
VDD
Q4906
R4922
6
LTC124EUB
1%
DTC115EUA-TLB
5
1k
GND
V+5V
*R4875
*Q4811
10
2
LSA1576UB(QRS)
8
GND
1
R4870
TEMP_OUT
4
1k
3
IC4804
NJM12904V
GND
R
GND
1/6 - 5/6
IC4804
NJM12904V
6
GND
*Q4911
7
LSA1576UB(QRS)
5
GND
: Audio Signal Route
NOTE
1. RESISTORS
Unit: k-k
, M-M
or
unless otherwise noted.
Rated Power: 1/16w unless otherwise noted.
Toleranee: (J)5% unless otherwise noted.
2. CAPACITORS
Unit: p-pF or u-uF unless otherwise noted.
Ratings: Capacity(F)/Voltage(V) unless otherwise noted.
YB:CKSRYB, QYB:CKSQYB,SYB:CKSYB, CH:CCSRCH
HAT:CEHAT, ZL:CEHAZL
3. NM: No Mount
4
MODULATOR & MOS FET Driver
Q4805
IC4801
LTC124EUB
IRS20957SPBF
!
DRIVER
1
16
VDD
CSH
2
15
CSD
VB
3
14
IN
HO
4
13
VSS
VS
5
12
NC1
NC2
R4829
6
11
2125
VREF
VCC
1.8k
7
10
OCSET
LO
8
9
DT
COM
R4832
2125
5.6k
VSS+12V
R4847
1M
R4840
ACN7165-A
4.7u
L4804
NM
R4809
10k
Q4905
IC4901
LTC124EUB
IRS20957SPBF
!
DRIVER
1
16
VDD
CSH
2
15
CSD
VB
3
14
IN
HO
4
13
VSS
VS
5
12
NC1
NC2
R4929
6
11
VREF
VCC
2125
1.8k
7
10
OCSET
LO
8
9
DT
COM
R4932
2125
5.6k
VSS+12V
*R4947
1M
*R4940
ACN7165-A
4.7u
L4904
NM
R4909
10k
1608 SIZE
RS1/16S*
RN1/16S*
CCSR***
CKSR***
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