Pioneer SC-LX83 Service Manual page 17

5
2.7 ICEPOWER AMP ASSY (3/5)
P
3/5
ICEPOWER AMP ASSY (3/5)
(SC-LX83 : AWH7031)
(SC-LX73 : AWH7033)
V+5V
R4415
GND
R4315
V-5V
VD
V+64V
VD_CHK2
*A
GND
VS_CHK2
V-64V
VS
P
3/5 F
2.8 ICEPOWER AMP ASSY (4/5)
P
4/5
ICEPOWER AMP ASSY (4/5)
(SC-LX83 : AWH7031)
(SC-LX73 : AWH7033)
V+5V
R4615
GND
R4515
V-5V
VD
V+64V
VD_CHK3
*A
GND
VS_CHK3
V-64V
VS
P
4/5 F
5
6
*B
0
0
V-5VFILT2
R4361
R4461
ACN7165-A ACN7165-A
VD3
10 VD4
10
3216 3216
ATL7018-A ATL7018-A
L4402 L4302
1u 1u
1u
1u
L4303
L4403
ATL7018-A
ATL7018-A
3216 3216
R4462 R4362
VS3 VS4
ACN7165-A ACN7165-A
*A
10 10
*B
0
0
V-5VFILT3
R4561
R4661
VD6
ACN7165-A ACN7165-A
10 VD5
10
*A
3216 3216
ATL7018-A ATL7018-A
L4602 L4502
1u 1u
1u
1u
L4603 L4503
ATL7018-A ATL7018-A
3216
3216
R4662 R4562
VS5
ACN7165-A ACN7165-A
VS6
10 10
6
7
IC4401
ICC3-AVR
!
DRIVER
1
Isense1_H
Vboot
2 Isense2_H
HighDrive
3 NC1
HighReturn
4 NC2
Isense1_L
5 PWM+
Isense2_L
6 PWM-
Vdrive
7 SS_EN
LowDrive
8 Blanking
VS
R4447
ACN7165-A
3216
L4404
ATL7020-A
4.7u
VSS+10V
IC4301
ICC3-AVR
!
DRIVER
1
Isense1_H
Vboot
2 Isense2_H
HighDrive
3 NC1
HighReturn
4 NC2
Isense1_L
5 PWM+
Isense2_L
6 PWM-
Vdrive
7 SS_EN
LowDrive
8 Blanking
VS
R4347
ACN7165-A
3216
L4304
ATL7020-A
4.7u
VSS+10V
ICC3-AVR
!
DRIVER
1
Isense1_H
Vboot
2 Isense2_H
HighDrive
3 NC1
HighReturn
4 NC2
Isense1_L
5 PWM+
Isense2_L
6 PWM-
Vdrive
7 SS_EN
LowDrive
8 Blanking
VS
R4647
ACN7165-A
3216
L4604
ATL7020-A
4.7u
VSS+10V
IC4501
ICC3-AVR
!
DRIVER
1 16
Isense1_H
Vboot
2 Isense2_H 15
HighDrive
3 NC1 14
HighReturn
4 NC2 13
Isense1_L
5 PWM+ 12
Isense2_L
6 PWM- 11
Vdrive
7 SS_EN 10
LowDrive
8 Blanking 9
VS
R4547
ACN7165-A
3216
L4504
ATL7020-A
4.7u
VSS+10V
SC-LX83
7
8
16
15
14
13
12
11 R
10
9
16
15
14
13
12
11 R
10
9
P
16
15
14
13
12
11 R
10
9
D
RF0
P
8
A
B
C
3/5 F
D
E
F
4/5 F
17