Pioneer SC-27 Service Manual page 145

5
MOS FET Driver
R4745
D4703 10k
2125
1%
RF051VA2S
D4707
RF051VA2S
IC4701
ICC3-AVR
4/5 !
DRIVER
1
16
Isense1_H
C1
Vboot
2 15
Isense2_H
HighDrive
3 14
NC1
HighReturn
4 13
NC2
Isense1_L
5 PWM+ 12
(C) Isense2_L
6 PWM- 11
Vdrive
7 10
SS_EN
LowDrive
8 Blanking 9
VS
R4747
ACN7165-A
3216
L4704 4.7u
ATL7020-A
VSS+10V
VD7
R4766 R4767
2SA1514K(RS)
10K 1% 1k 1%
GND
5
6
VD7
Q4702
2SC5738 !
D 2
R4748
3216
ACN7165-A
G
D4701
1
S 3
RB161VA-20
Q4703
GND
2SA2061
PWM7
D4705 R4750
2125
D4706 10k
1%
RF051VA2S
RF051VA2S
(C)
Q4704
2SC5738 !
ATL7017-A
D 2
R4749
3216
ACN7165-A
G
D4702
1
S 3
RB161VA-20
Q4705
2SA2061
VS7
V+5V
Q4711
2SA1602A(EF)
IC4704
R4775
NJM12904V
Q4710
10
2
8 GND
1
R4770
4
1k 3
GND
GND
IC4704
NJM12904V
6
7
5
GND
6
Output Power Stage and LP Filter
V+64V
VD
(C)
L4700
15u
VS
V-64V
R4755
GND
ZOBEL7
2125
1%
15k
V+12RY
GND GND
Q4712
RYC
RT1N140M
Q 1/5
V-12RY
Q 1/5-4/5
TEMP_OUT
NOTE
1. RESISTORS
Unit: k-kΩ, M-MΩ or Ω unless otherwise noted.
Rated Power: 1/16W or NETWORKS-1/32W 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
: Audio Signal Route
SC-27
7
Q
5/5 ICEPOWER AMP ASSY
(AWH7022: SC-27)
(AWH7019: SC-25, SC-9540)
GND
L4701
ATL7022-A
4 3 3
4
12u
1 2 2
1
GND
GND
GND
RY4700
ASR7001-A
7
8
A
B
KN4400
GND1 GND3
1 3
2 4
GND2
GND4
VNE1948-A
GND
C+
(C)
Q 2/5
C
C-
D
E
F
Q
5/5
145
8