Pioneer SC-LX81 Service Manual

136
SC-LX81
1
2 3 4
A
B
C
D
E
F
1
2 3 4
10.22 ICEPOWER AMP (2/5)
Q 2/5
CKS1716
CN4100
L+ 1
L- 2
GNDL 3
GNDL 4
V+12L 5
V-12L 6
CKS1716
CN4200
R+ 1
R- 2
GNDR 3
GNDR 4
V+12R 5
V-12R 6
ACH7304-A
C4149
560u
ACH7304-A
C4250
560u
ACH7304-A
C4150
560u
ACH7304-A
C4249
560u
C4248
1u/10
YB
C4257
2200p/50
YB
C4157
2200p/50
YB
C4219
0.47u/16
2125
QYB
C4220 1u/10
YB
C4229
0.1u/16
YB
C4111
NM
C4110
NM
C4230
1u/10
YB
C4211
NM
C4210
NM
C4215 1u/10
YB
C4204
ACG7069-A
1000p
C4205
ACG7069-A
1000p
C4104
ACG7069-A
1000p
C4105
ACG7069-A
1000p
C4106
ACG7072-A
470p
C4206
ACG7072-A
470p
C4107
ACG7072-A
470p
C4207
ACG7072-A
470p
C4214
ACG7068-A-T
C4114
680p
ACG7068-A-T
C4128
ACG7073-A
2125
2.2u
C4122
ACG7073-A
2125
2200p
C4228
ACG7073-A
2125
2.2u
C4123
ACG7066-A
39p
C4223
ACG7066-A
39p
C4125
ACG7071-A
47p
C4225
ACG7071-A
47p
C4227
ACG7070-A
4.7P
C4127
ACG7070-A
4.7P
C4156
0.1u/16
YB
C4259
NM
C4221
0.1u/16
YB
C4159
NM
C4121
0.1u/16
YB
C4148 1u/10
YB
C4130 1u/10
YB
C4129
0.1u/16
YB
C4147
1u/10
YB
C4247
1u/10
YB
C4120
1u/10
YB
C4115 1u/10
YB
C4119
0.47u/16
2125
QYB
C4118
1u/10
YB
C4218
1u/10
YB
GND
GND
GND
GND
GND
GND
GNDGND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
IC4202
UPC4570G2-A
(1/2)
3
4
2
1
8
IC4203
NJM4565MD
(1/2)
3
4
2
1
8
IC4203
NJM4565MD
(2/2)
5
4
6
7
8
IC4202
UPC4570G2-A
(2/2)
5
6
7
L4202
ATL7018-A
1u
L4203
ATL7018-A
1u
L4103
ATL7018-A
1u
L4102
ATL7018-A
1u
Q4108
2SD2704K
Q4208
2SD2704K
R4236
15k
1%
R4110
470
R4122
240k
R4120
220k
R4123
1k
1%
R4208
NM
R4108
NM
R4232
18k
1%
R4173
100k
R4127
1.5k
1%
R4220
220k
R4222
240k
R4133
1.8k
1%
R4160
10
R4135
1.8k
1%
R4238
2.7k
1%
R4112
22k
R4210
470
R4130
47k
1% 1/8W
2125
R4131
68k
1% 1/8W
2125
R4231 68k
1% 1/8W
2125
R4230
47k
1% 1/8W
2125
R4206
0
R4106
0
R4260
10
R4239
56k
1%
R4132
18k
1%
R4233
1.8k
1%
R4274
1M
R4139
56k
1%
R4235
1.8k
1%
R4111
220k
R4142 0
R4242
0
R4211
220k
R4226
1.5k
1%
R4136
15k
1%
R4227
1.5k
1%
R4223
1k
1%
R4212 22k R4217
100k
R4117
100k
R4118
4.7k
R4218
4.7k
R4125
1k
1%
R4119
1M
R4219
1M
R4121
1.8k
R4221
1.8k
R4228
27k
2125
1%
R4128
27k
2125
1%
R4141
15k
R4241
15k
R4240
10k
R4140
10k
R4243
1k
R4144
1k
R4143
1k
R4244
1k
R4237
27k
3216
1% 1/4W
R4137
27k
3216
1% 1/4W
R4177
20k
3216
1% 1/4W
R4277
20k
3216
1% 1/4W
R4105
1k
0.5%
R4104
1k
0.5%
R4126
1.5k
1%
R4205
1k
0.5%
R4204
1k
0.5%
R4201
100
0.5%
R4234
1.2k
1%
R4225
1k
1%
R4224 27k
1%
R4100
100
0.5%
R4200
100
0.5%
R4134
1.2k
1%
R4124
27k
1%
R4101
100
0.5%
R4103
910
0.5%
R4172
NM
R4171
0
R4102
910
0.5%
R4203
910
0.5%
R4202
910
0.5%
R4276
1.8k 1%
R4176
1.8k 1%
R4213
NM1%
R4113
NM1%
R4215
0
R4138
2.7k
1%
R4174
1M
R4115
0
V+5V
V-5V
V-64V
VD
V+12V
V-12V
V-12V
V+12V
V+64V
V-5VFILT1
V+5V
V+5V
V-5V
VS2VS1
VD2
V-5V
V-12V
VD1
V-5V
V-5VFILT1
V-5VFILT1
V+5V
V+5V
V+5V
V+12V
VS
AMPDISABLE1
VS_CHK1
VD_CHK1
AMUTE
OSC1
ZOBEL1
PWM1
ZOBEL2
OSC1
PWM2
OUT2_L
OUT2
OUT1_R
MOD1
MOD2
L_IN
R_IN
OUT1
AMPOVERLOAD
L_IN
R_IN
VD_CHK1
MOD1
MOD2
VS_CHK1
C4222
ACG7073-A
2125
2200p
220u/25C4108
HAT
220u/25
C4208
HAT
R4263
105k
3216
1% 1/4W
R4163
105k
1% 1/4W
3216
Q4109
2SC4154(EFG)
Q4209
2SC4154(EFG)
D4111
NM
D4211
NM
D4100
1SS302
D4200
1SS302
R4164
3.3k
1%
R4264
3.3k
1%
R4278
NM
R4178
NM
R4129
1
1/8W
2125
R4229
1
1/8W
2125
2SA1682(4)
Q4206
2SA1682(4)
Q4207
2SA1682(4)
Q4107
2SA1682(4)
Q4106
C4116
1u/16
YB
C4216
1u/16
YB
C4209
0.01u/16
2125
CFHXSQ103J16-T
C4109
0.01u/16
2125
CFHXSQ103J16-T
C4224
ACG7078-A
56p
C4124
ACG7078-A
56p
C4260
1000p/50
CHC4160
1000p/50
CH
R4161
ACN7165-A
3216
10
R4162
ACN7165-A
3216
10
R4262
ACN7165-A
3216
10
R4261
ACN7165-A
3216
10
R4114
4.7k
R4214
4.7k
C4226
ACG7079-A
75p
C4126
ACG7079-A
75p
ICC1-AVR
IC4200
Vd_check
1
Vs_check
2
Discharge
3
OC_mon
4
Enable
5
Thermal
6
In_A_Ch2
7
Out_A_Ch2
8
In_B_Ch2
9
Out_B_Ch2
10
In_C_Ch2
11
Pwm-_ch2
12
Pwm+_ch2
13
Mod_Ch2
14
ZobelSense2
15
Average2
16
Average1
17
NTC_in
18
ZobelSense1
19Mod_ch1
20
Pwm-_ch1
21
Pwm+_ch1
22
In_C_Ch1
23
Out_B_Ch1
24
In_B_Ch1
25
Out_A_Ch1
26
In_A_Ch1
27
NC
28
Vdd
29
UVP_en
30
Main_Gnd
31
Vss
32
Ref_ch1
33
CS1_ch1
34
CS2_ch1
35
RECout_ch1
36
Vin__ch1
37
DC_FB_ch1
38
Vin_ch2
39
DC_FB_ch2
40
RECout_ch2
41
CS1_ch2
42
CS2_ch2
43
Ref_ch2
44
ACH1479-A
C4213
100u
ACH1479-A
C4117
100u
ACH1479-A
C4217
100u
ACH1479-A
C4112 100u
ACH1479-A
C4212 100u
ACH1479-A
C4113
100u
MODULATOR
DC offset
DC offset
AM Switch
Transistor
1/4W
2125
CKS***
CCSQ***
3216
2125
RN1/16S***
RS1/8SQ***
RS1/10S***
CKSQ***
CCS***
2125
RS1/4SA***
1608 SIZE
RS1/8S***
CKSR***
2125 SIZE 3216 SIZE
3216
3216
1/8W
CCSR***
RS1/16S***
NOTE
1. RESISTORS
Unit: k-k
Ω, M-M Ω or Ω 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
!
The mark found on some component parts should be replaced
with same parts(safety regulation authorized) of identical
designation.
CN3830
P
CN3820
P
1/5, 3/5,
4/5, 5/5
Q
1/5, 3/5, 5/5
Q
1/5, 3/5, 4/5, 5/5
Q
1/5, 3/5,
4/5, 5/5
Q
1/5
Q
(FL)
(FL)
(FL)

Pioneer SC-LX81 Specifications

General

Brand	Pioneer
Model	SC-LX81
Category	Receiver
Language	English