Icepower Amp Assy (4/5) - Pioneer SC-37 Service Manual

1

10.30 ICEPOWER AMP ASSY (4/5)

QQ
3 7 63 1515 0
A
CN4600
V+12V
AKP7252-A
R4600
SBR+ 1
100 0.5%
SBR- 2
GNDSBR 3
V+12SBR 4
GND
V-12SBR 5
R4601
NC 6
100 0.5%
V-12V
O
CN3870
R4500
V+12V
CN4500 100 0.5%
AKP7252-A
B
6
NC
5
SBL+ GND
R4501
4
SBL-
100 0.5%
3
GNDSBL
V+12SBL 2
V-12SBL 1
V-12V
O
V+5V
CN3860
R4615
0
GND
R4515
0
C
V-5V
GND
R4614
4.7k
TE
L 13942296513 R4610 C4612 100u
SBR_IN
470
ACH1479-A
R4510 C4512 100u
SBL_IN
470
ACH1479-A
P
1/5 R4514
SBMUTE
4.7k
GND
D
P
1/5-3/5,5/5
AMPOVERLOAD
AMPDISABLE3
P
E
VD
V+64V
R4661
ACN7165-A
10
*A
3216
1u
VD_CHK3
www
L4602
ATL7018-A
L4603
GND
ATL7018-A
1u
10
VS_CHK3
3216
R4662
F
ACN7165-A
V-64V
P
4/5
VS
178
1
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2
C4608
ACH7320-A
470u/16
0.01u/16
D4600
1SS302 V+5V
CFHXSQ103J16-T
GND
V-5V
R4602
910 0.5%
C4604
ACG7069-A
R4605
1000p
1k
C4607
C4605
ACG7069-A
1000p R4603
ACG7072-A
C4509
910 0.5%
CFHXSQ103J16-T
0.01u/16
C4508
D4500
GND
1SS302
V+5V
470u/16
ACH7320-A
V-5V
R4502
910 0.5%
C4504
ACG7069-A
1000p
R4505
1k
C4507
C4505
ACG7069-A
R4503
1000p
ACG7072-A
910 0.5%
DC offset
C4620
1u/10
YB
6
8
R4618
7
4.7k
4
IC4603
5
(2/2)
GND
NJM4565MD
C4621
0.1u/16
YB
GND
GND
GND
R4572
V-5VFILT3
NM
34
R4678
CS1_ch1
35 CS2_ch1
NM RECout_ch1
Pwm+_ch1
36
Vin__ch1
R4613
37
C4613 100u
DC_FB_ch1
ACH1479-A
NM
C4513
ACH1479-A 38
MODULATOR
Vin_ch2
100u R4513
39
R4578
DC_FB_ch2
NM
40
CS1_ch2
NM RECout_ch2
CS2_ch2
41
Ref_ch2
42
43
44
VD_CHK3
VS_CHK3
1/5
GND GND
DC offset
V+5V
C4647 R4660
1u/10 10 C4520
YB
1u/10
GND
YB
2
8
R4518
1
4.7k IC4603
4
3
(1/2)
NJM4565MD
GND
R4560 C4547
10 1u/10
YB
GND GND
V-5V
C4521
0.1u/16
YB
GND
R4561
VD6
ACN7165-A
VD5
10
C4549
3216
1u
AWH7025 ACH7304-A
L4502
ATL7018-A AWH7024 ACH7318-A
x ao
y
L4503
ATL7018-A
1u
10
. i
3216
R4562
VS5
ACN7165-A
VS6
2
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3
8
NOTE
C4609
1. RESISTORS
R4606
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted.
Rated Power: 1/16w unless otherwise noted.
0
2125
Toleranee: (J)5% unless otherwise noted.
V-12V
2. CAPACITORS
Unit: p-pF or u-uF unless otherwise noted.
IC4602
Ratings: Capacity(F)/Voltage(V) unless otherwise noted.
(1/2)
YB:CKSRYB, QYB:CKSQYB,SYB:CKSYB, CH:CCSRCH
3
4 NJM2068MD
HAT:CEHAT, ZL:CEHAZL
SBR_IN
3. NM: No Mount
1
8
2
0.5%
1608 SIZE
470p
RS1/16S***
RN1/16S***
CCSR***
V+12V
CKSR***
R4506
2125 0
IC4602
(2/2)
NJM2068MD
5
4
SBL_IN
7
8
6
0.5%
470p
R4630
NM
2125
1% 1/8W
R4620 R4622
C4623
220k 240k
39p
C4624
ACG7066-A
ACG7078-A
R4621 MOD5 R4635
1.8k
R4636
1.8k
1%
15k
C4622 R4625 R4626 R4627
GND
1k 1% 1.5k 1%
2200p 1% 1.5k
C4627 ACG7070-A
ACG7073-A
4.7p
C4628
2200p R4638
R4624 27k 1%
2.7k
ACG7073-A
1%
R4639
IC4600 56k 1%
ICC1-AVR
22
21
Q Q
3 6 7
20
Pwm-_ch1
ZobelSense1 ZOBEL5
Mod_ch1
19
NTC_in
18
Average1
17
Average2
16
ZOBEL6
ZobelSense2
15
Mod_Ch2
Pwm+_ch2 14
Pwm-_ch2
13
12
R4539
56k 1%
C4528
2200p
R4538
R4524
27k
ACG7073-A
2.7k
1%
C4527
4.7p
C4522 R4525 R4526
R4527
ACG7070-A
2200p
1.5k 1%
1k 1% 1.5k 1%
ACG7073-A
R4535
1%
1.8k
GND
ACG7066-A
C4523
39p
GND
R4520 R4522
220k 240k
R4530
1% 1/8W
2125
NM
AM Switch
R4521
Transistor
MOD6
1.8k
2SC4154(EFG)
C4550 C4649 C4650
ACH7304-A ACH7304-A ACH7304-A
ACH7318-A ACH7318-A ACH7318-A
u163
SC-37
3
4
2 9 9 4
: Audio Signal Route
2125 SIZE 3216 SIZE
RS1/10S*** RS1/8S***
2125 3216
RS1/8SQ*** RS1/4SA***
2125 3216
1/8W 1/4W
CCSQ*** CCS***
2125 3216
CKSQ*** CKS***
V+5V
R4640
10k
GND
D4611
NM
OUT5
OSC1
P
1/5-3/5,5/5
Q4609
2SC4154(EFG)
56p C4629
0.1u/16
YB
GND
R4637 R4677
PWM5
3216 3216
1% 27k 20k
1% 1/4W
1% 1/4W
GND
V-5VFILT3
Q4606
IMT4
4 3
5 2
6 1
C4661
10p/50
MOD5
1 3 1 5 0 5 8 2 9
GND
MOD6
C4561
10p/50
6 1
5 2
4 3
1%
IMT4
Q4506
V-5VFILT3
R4537
R4577
20k
R4536 27k
PWM6
3216 3216
15k 1%
1% 1/4W 1% 1/4W
GND
V+5V
OUT6
R4540
10k
GND
R4541
Q4509
OSC1
15k
D4511
NM
GND
m
co
.
The ! mark found on some component parts should be replaced
with same parts(safety regulation authorized) of identical
designation.
4
2 8
9 9
D460
RF051VA
IC4601
ICC3
DR
1
Isense1
2
Isense2
3
H
NC1
4
NC2 I
5
PWM+ I
6
PWM-
7
SS_EN
8
Blankin
R
ACN
L
ATL
VSS+10V
9 4 2 8 9 9
D4503
RF051VA2S
RF
IC4501
ICC3-AVR
DRIVER
1
Vbo
Isense1_H
2
HighDr
Isense2_H
3
HighRetu
NC1
4
NC2 Isense1
5
PWM+ Isense2
6
PWM- Vdr
7
SS_EN LowDr
8
Blanking V
R4547
ACN7165-
3216
L4504
ATL7020-A
VSS+10V
P
1/5-3/5,5/5
VD
R4666
10K 1%
VD
R4566
10K 1%