Pioneer SC-37 Service Manual page 179

5
QQ
3 7 63 1515 0
Route
MOS FET Driver
R4645
D4603
10k
2125
1%
RF051VA2S
D4607
IC4601 RF051VA2S
ICC3-AVR
!
DRIVER
1 16
Vboot
Isense1_H
2 15
HighDrive
5/5
Isense2_H
3 14
HighReturn
NC1
4 13
NC2 Isense1_L
5 12
PWM+ Isense2_L
6 11 RF051VA2S
PWM- Vdrive
7 10
SS_EN LowDrive
8 9
Blanking VS
R4647
ACN7165-A
3216
L4604 4.7u
ATL7020-A
VSS+10V
TE
L 13942296513
R4545
D4503
10k
2125
1%
RF051VA2S
D4507
RF051VA2S
IC4501
ICC3-AVR
!
DRIVER
1 16
Vboot
Isense1_H
2 15
HighDrive
Isense2_H
3 14
HighReturn
NC1
4 13
NC2 Isense1_L
D4506
5 12
PWM+ Isense2_L
6 11 RF051VA2S
PWM- Vdrive
7 10
SS_EN LowDrive
8 9
Blanking VS
R4547
ACN7165-A
3216
L4504 4.7u
ATL7020-A
VSS+10V
5-3/5,5/5
VD5
R4666 R4667
10K 1% 1k 1%
www
VD6
Q4510
R4566
. 2SA1514K(RS)
10K 1% R4567
1k 1%
GND
5
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VD5
Q4602
!
2SC5738
R4648
D 2
3216
ACN7165-A
G
D4601
1
S 3
RB161VA-20
GND
Q4603
2SA2061 PWM5
D4605 R4650
2125
D4606 10k
RF051VA2S
1%
L4600
Q4604
!
2SC5738
ATL7017-A
15u
D 2
R4649
3216
ACN7165-A
G
D4602
1
S 3
RB161VA-20
Q4605
2SA2061
GND
VS5
VD6
Q4502
!
2SC5738
D 2
R4548
3216
ACN7165-A
G
D4501
1
S 3
RB161VA-20
GND
Q4503
2SA2061
PWM6
D4505 R4550
2125
10k
1%
RF051VA2S
L4500
Q4504
!
2SC5738
ATL7017-A
15u
R4549 D 2
3216
ACN7165-A
G
D4502
1
S 3
RB161VA-20
R4555
Q4505 2125
15k
2SA2061
GND
VS6
V+5V
IC4604
Q4611
R4675 NJM12904V
2SA1576A(QR)
Q4610
2SA1514K(RS) 10 2
8 GND
1
R4670
4
1k 3
GND
x ao
GND GND
y
2SA1576A(QR)
IC4604
Q4511
NJM12904V
6
i
GND
7
R4570
1k 5
GND
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6
8
P
Output Power Stage and LP Filter
OUT5
GND (RTN5)
V+64V
VD
OUT5
VS
V-64V
GND
(RTN5)
Q4512
R4655
RYB
GND
RT1N140M
ZOBEL5
2125
1%
P
15k
1/5
V-12RY
OUT6
GND
SPEAKER TERMINAL(4P)
GND (RTN6)
Q Q
JA4501,JA4901
3 6 7 1 3
AWH7025 AKE7141-A
AWH7024 AKE7149-B
DolbyZ
GND
V+64V
VD
GND
OUT6
GND
JP4500
ADB7038-A
JP4501
ADB7039-A
VS
V-64V
GND
(RTN6)
GND
RYH
1%
ZOBEL6
P
1/5
GND
GND
TP773
OUT5
GND
(RTN5)
TEMP_OUT
P
1/5-3/5,5/5
u163
.
SC-37
6
7
2 9 9 4 2 8
ICEPOWER AMP ASSY (4/5)
4/5
(SC-37: AWH7024)
(SC-35,SC-1525-K: AWH7025)
GND
L4601
ATL7022-A
4 3 3
4
12u
1 2 2
1
GND
GND
GND
V+12RY
GND
RY4500
ASR7001-A
GND
L4501
ATL7022-A
4 3 3
4
12u
1 2 2
1
1 5 0 5 8 2 9 9 4
GND
GND GND
GND
GND
L4811
ATL7022-A
4 3 3
4
12u
1 2 2
1
V+12RY
GND
GND
GND
RY4800
ASR7001-A
Q4812
RT1N140M
GND
V-12RY
L4911
ATL7022-A
4 3 3
4
12u
1 2 2
1
m
GND
GND
GND
co
7
8
9 9
A
KN4300
1 3
GND1 GND3
2 4
GND2 GND4
VNE1948-A
B
GND
*JA4501
AKE7147-B
1
SBR+
2
5 SBR-
3
SBL+
4
SBL-
C
GND
2 8 9 9
D
GND
*JA4901
AKE7147-B
1
FHR+
2
5 FHR-
3
FHL+
4
FHL-
E
GND
KN4501
VNE1948-A
1 3
GND1 GND3
2 4
GND2 GND4
F
P
4/5
179
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