Pioneer SC-37 Service Manual page 177

5
QQ
3 7 63 1515 0
1
1/5,2/5,4/5,5/5
TE
L 13942296513
P
1/5,2/5,4/5,5/5
OSC1
VD3
Q4410
R4466 R4467
2SA1514K(RS)
10K 1% 1k 1%
www
VD4
GND
Q4310 .
R4366
2SA1514K(RS)
10K 1% R4367
1k 1%
GND
5
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MOS FET Driver
VD3
R4445
D4403 10k
2125
1%
RF051VA2S
Q4402
2SC5738 !
D4407
R4448 D 2
3216
RF051VA2S
ACN7165-A
IC4401
G
D4401
ICC3-AVR
! 1
DRIVER
S 3
RB161VA-20
1 16
Vboot
Isense1_H
2 15
Q4403
HighDrive
Isense2_H 2SA2061
3 14
HighReturn
NC1
D4405 R4450
4 13
NC2 Isense1_L
2125
D4406 10k
5 12
1%
PWM+ Isense2_L
RF051VA2S
6 11 RF051VA2S
PWM- Vdrive
7 10
Q4404
SS_EN LowDrive
2SC5738 !
8 9
Blanking VS
R4449
D 2
3216
ACN7165-A
R4447
ACN7165-A
G
D4402
1
3216
S 3
RB161VA-20
4.7u
L4404
ATL7020-A
Q4405
VSS+10V 2SA2061
VS3
VD4
R4345
D4303 10k
2125
1%
RF051VA2S
Q4302
2SC5738 !
D4307
R4348
1/4W D 2
3216
RF051VA2S
ACN7165-A
IC4301
G
D4301
ICC3-AVR
!
1
DRIVER
S 3
RB161VA-20
1 16
Vboot
Isense1_H
2 15
Q4303
HighDrive
2SA2061
Isense2_H
3 14
HighReturn
NC1
D4305 R4350
4 13
NC2 Isense1_L
2125
D4306 10k
5 12
RF051VA2S
1%
PWM+ Isense2_L
6 11 RF051VA2S
PWM- Vdrive
7 10
Q4304
SS_EN LowDrive
!
2SC5738
8 9
Blanking VS
R4349
D 2
1/4W
3216
R4347
ACN7165-A
ACN7165-A
G
D4302
3216
1
S 3
RB161VA-20
4.7u
L4304
ATL7020-A
VSS+10V Q4305
2SA2061
VS4
V+5V
IC4404
Q4411
R4475 NJM12904V
2SA1576A(QR)
10 2
8
GND
1
R4470
4
1k 3
P
1/5,2/5,4/5,5/5
x ao
y
GND GND
IC4404
NJM12904V Q4311
i
2SA1576A(QR)
6
GND
7
R4370
1k 5
GND
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6
8
P
Output Power Stage and LP Filter
PWM3
V+64V
GND VD
L4400
ATL7017-A
15u
VS
V-64V
R4455
ZOBEL3
2125
1%
15k
GND GND
Q Q
3 6 7 1 3
P
1/5
RYS
V+64V
PWM4
VD
GND
L4300
ATL7017-A
15u
VS
V-64V
R4355
ZOBEL4
2125
1%
15k
GND GND
NOTE
1. RESISTORS
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted.
Rated Power: 1/16w unless otherwise noted.
Toleranee: (J)5% unless otherwise noted.
2. CAPACITORS
TEMP_OUT
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
u163
: Audio Signal Route
.
SC-37
6
7
2 9 9 4 2 8
ICEPOWER AMP ASSY (3/5)
3/5
(SC-37: AWH7024)
(SC-35,SC-1525-K: AWH7025)
GND
L4401
ATL7022-A
4 3 3
4
12u
1 2 2
1
GND
GND
GND
V+12RY
RY4300
1 5 0 5 8 2 9 9 4
ASR7001-A
SPEAKER TERMINAL(4P)
JA4301
Q4312
AWH7025 AKE7141-A
RT1N140M
AWH7024 AKE7149-B
V-12RY
GND
L4301
ATL7022-A
4 3 3
4
12u
1 2 2
1
GND
GND
GND
1608 SIZE 2125 SIZE
RS1/16S***
2125
m
RN1/16S***
2125
1/8W
CCSR***
CKSR*** 2125
co
7
8
9 9
A
B
KN4200
1 3
GND1 GND3
2 4
GND2 GND4
VNE1948-A
GND
GND
C
*JA4301
AKE7147-B
1
SR+
2
2 8 9 9
5 SR-
3
SL+
4
SL-
D
GND
GND
E
3216 SIZE
RS1/10S*** RS1/8S***
3216
RS1/8SQ*** RS1/4SA***
3216
1/4W
CCSQ*** CCS***
3216
CKSQ*** CKS***
F
P
3/5
177
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