Icepower Amp Assy (4/5) - Pioneer SC-LX82 Service Manual

1

10.27 ICEPOWER AMP ASSY (4/5)

A
CN4600
XKP3062-A
SBR+ 1
SBR- 2
GNDSBR 3
V+12SBR 4
V+12V
GND
V-12SBR 5
V-12V
CN4500
CKS1716
(SBL)
SBL+ 1
SBL- 2
B
GNDSBL
3
GNDSBL 4
V+12SBR 5
GND
V+12V
V-12SBR
6
V-12V
V+5V
R4615
0
GND
C R4515
0
V-5V
GND
R4614
4.7k
R4610
SBR_IN
470
(SBL)
R4510
SBL_IN
470
R4514
SBMUTE
4.7k
Q 1/5
D
GND
Q 1/5-3/5,5/5
E
V+64V
VD_CHK3
GND
VS_CHK3
F
Q V-64V
4/5
144
1
2
D4600
V+5V
1SS302
GND
V-5V
R4600 R4602
100 0.5%
910 0.5%
C4604
ACG7069-A
1000p
C4605
ACG7069-A
R4601 1000p R4603
100 0.5%
910 0.5%
D4500 GND
1SS302
V+5V
V-5V
R4500 R4502
100 0.5% 910 0.5%
C4504
ACG7069-A
1000p
C4505
ACG7069-A
R4501 1000p R4503
910 0.5%
100 0.5%
R4618
7
4.7k
IC4603
(2/2)
NJM4565MD
GND
V-5VFILT3
CS1_ch1
34
R4678 CS2_ch1
35
RECout_ch1
NM
C4612 100u
36
Vin__ch1
R4613
37
ACH1479-A C4613 100u
DC_FB_ch1
ACH1479-A
C4512 100u NM
C4513
ACH1479-A 38
Vin_ch2
100u
R4513
39
ACH1479-A
R4578 DC_FB_ch2
NM
40
RECout_ch2
NM
41
42
43
44
VD_CHK3
VS_CHK3
AMPOVERLOAD
AMPDISABLE3
Q
1/5
GND GND
DC offset
C4647
1u/10
YB
GND
8
R4518
1
4.7k IC4603
4
(1/2)
NJM4565MD
R4560
10
GND
V-5V
VD
R4561
R4661
VD6
ACN7165-A ACN7165-A
VD5
10 10
3216 3216
1u 1u
L4502
L4602
ATL7018-A
ATL7018-A
L4603
L4503
ATL7018-A
ATL7018-A
1u
1u
10 10
3216 3216
R4662 R4562
VS5
ACN7165-A ACN7165-A
VS6
VS
2
3
C4608 ACH7320-A
470u/16
C4609
0.01u/16
R4606
0
2125
V-12V
CFHXSQ103J16-T
IC4602
(1/2)
3
NJM2068MD
4
SBR_IN
1
8
R4605
2
1k
0.5%
C4607
470p
ACG7072-A
C4509
CFHXSQ103J16-T
V+12V
0.01u/16
R4506
2125 0
C4508
ACH7320-A
470u/16 IC4602
(2/2)
NJM2068MD
5
4
SBL_IN
7
(SBL)
8
6
R4505
1k 0.5%
C4507
470p
R4629
ACG7072-A
2125
1
R4630
2125
DC offset
1% 1/8W
C4620
1u/10
YB
R4620 R4622
6
8
C4623
220k 240k
4 ACG7066-A
5
GND
C4621 R4621 MOD5
0.1u/16 1.8k
YB
GND
C4622 R4625 R4626 R4627
1k 1% 1.5k 1%
2200p 1% 1.5k
ACG7073-A
R4624 27k 1%
GND
R4572
NM
IC4600
ICC1-AVR
22
21
Pwm+_ch1
20
Pwm-_ch1 ZobelSense1 ZOBEL5
Mod_ch1
19
NTC_in
18
MODULATOR Average1
17
Average2
16
CS1_ch2
ZobelSense2 ZOBEL6
CS2_ch2
15
Ref_ch2
Mod_Ch2
14
Pwm+_ch2
(SBL)
13
Pwm-_ch2
12
R4524
27k
1%
C4522 R4525 R4526 R4527
2200p 1.5k 1%
1k 1% 1.5k 1%
ACG7073-A
GND
V+5V
R4660 C4523
10 C4520
1u/10
YB
R4520 R4522
2
220k 240k
R4530
3 2125
GND
R4529
C4547
2125
1
1u/10
YB
GND
C4521 R4521
MOD6
1.8k
0.1u/16
YB
GND
The mark found on some component parts should be replaced with
same parts (safety regulation authorized) of identical designation.
SC-LX82
3
4
V+5V
R4640
10k
1/8W
OUT5_R
47k
GND
D4611
NM
OUT5
Q4609
2SC4154(EFG)
39p
C4624 56p C4629
0.1u/16
ACG7078-A
YB
GND
R4635
1.8k R4636 R4637 R4677
PWM5
3216 3216
1%
15k 1% 27k 20k
1% 1/4W 1% 1/4W
GND GND
ACG7070-A
C4627
V-5VFILT3
4.7p
C4628
2200p R4638
ACG7073-A 2.7k
1%
Q4606 Q4607
R4639
2SA1682(4) 2SA1682(4)
C4661
56k 1%
10p/50
MOD5
GND
MOD6
C4561
10p/50
Q4506
2SA1682(4)
R4539
Q4507
2SA1682(4) (SBL)
56k 1%
C4528
2200p
R4538
1%
ACG7073-A 2.7k
C4527
4.7p
ACG7070-A
V-5VFILT3
R4537
R4577
R4535 27k 20k
R4536
PWM6
3216 3216
15k 1%
1.8k 1% 1% 1/4W 1% 1/4W
ACG7066-A
39p
GND GND
V+5V
OUT6
1% 1/8W
R4540
47k
10k
OUT6_L
1/8W
AM Switch
GND
Transistor
R4541
Q4509
2SC4154(EFG)
15k
D4511
GND
4
Q 1/5-3/5,5/5
OSC1
(SB
Q 1/5-3/5,5/5
VD5
OSC1
NM
R4666 R4667
10K 1% 1k 1%
VD6
R4566 R4567
10K 1% 1k 1%