Icepower Amp Assy (1/5) - Pioneer SC-37 Service Manual

1

10.27 ICEPOWER AMP ASSY (1/5)

QQ
3 7 63 1515 0
A
V+5V
VCC
A
GND
IC4003
VCC
A
GND
IC4003
GND
B
C
CN4000
9604S-17C
ICELR 1
ICESLR 2
ICESBLR 3
ICEC 4
ICEMUTEA 5
TE
L 13942296513
ICEMUTESB 6
G AMSW 7
XOLERR
8
RY AF 9
CN7006
RY CR 10
RY CR 11
RY B 12
AMPTEMP 13
XTEMPERR5 14
XDCERR 15
RY FH 16
D
GNDHD 17
GND1
GND
E
P
2/5-4/5
DC_DETECT1
www
P
2/5-5/5
F
DC_DETECT2
P
1/5
172
1
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2
D4007 1SS352
R4080 R4084
3.3k 12k
GND
D4008 1SS352
R4081 R4085
3.3k 12k
Y
D4009 1SS352
GND
R4082 R4086
3.3k 12k
Y
D4010 1SS352
GND
R4083 R4087
3.3k 12k
R4001
100
R4005 8.2k GND
R4002
100
R4006 8.2k
R4003
100
R4007 8.2k
R4004
100
R4008 8.2k
R4028 GND
R4030 100
100
R4029 R4031
100
100
V+5V
GND
R4036
R4037
100 100
V+5V
GND GND
R4043 R4044
AMPOVERLOAD
100 100
GND
R4046 100 R4050 100
R4047 100 R4051 100
R4048
R4052 100
100
R4049 R4053
100 100
R4034 R4035
100 100
DCdetRY
GND
R4021
100
R4022
R4024
100
100
R4025
100
R4023
R4026
100
100
P
GND
NM
Q4014
6 1
C1 E1
5 2
B2 B1
4 3
E2 C2
x ao
y
GND
HN1C01FU(YGR)
Q4016
. i
6 1
C1 E1
R4017
5 2
B2 B1
0
4 3
E2 C2
GND
2
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3
8
V+5V
IC4004
TC74VHC08FTS1
14
12
11
VCC
R4013
Y
A
13
GND 7
100
IC4003
TC74VHC04FTS1
IC4004
GND
14
9
8
VCC
R4014
Y
A
10
GND 7
100
IC4003 TC74VHC08FTS1
IC4004
14
4
6
VCC
R4015
Y
A
5
GND 7
100
IC4003 TC74VHC08FTS1
IC4004
14
1
3
VCC
R4016
Y
A
2
GND 7
100
IC4003
AMPDISABLE1
AMPDISABLE2
AMPDISABLE3
AMPDISABLE4
AM CONTROL
CIRCUIT
OSC1
P
2/5-5/5
GND
V-5V
P
2/5-5/5
Q Q
3 6 7 1 3
P
4/5
RYB
Q4010
LTA124EUB
RYH
Q4018
LTA124EUB
Q4011 DCdetRY
RT1N140M
DCdetRY
Q4019
RT1N140M
GND
GND
D4001
1SS301
R4009 220
R4010
220
R4011
220
R4012
D4002 220
1SS301
IC4005
HA17431GLTPA
R4094
2.2k
R4054
3.3k
IC4000
NM
5
(2/2)
GND
4
R4095
7
8
0 6
R4097
0
GND GND
2/5-5/5
TEMP_OUT
GND
V+5V
GND
u163
GND
GND GND
.
2
8
1
R4069
4
3
NM
GND R4070
NM
GND
SC-37
3
4
2 9 9 4
AMPOVERLOAD
D4011
R4088 R4089
Q4015
12k 12k
2SC4154(EFG)
1SS301
GND
GND
P
2/5
P
3/5
D4012
P
4/5
1SS301
P
5/5
R4073 22k
Q4012
HN1A01FU(YGR)
1 6
E1 C1
2 5 V+5V
B1 B2
3 4
C2 E2
Q4002
LTC124EUB
GND GND
V-5V
V+5V
R4076 22k
Q4013
HN1A01FU(YGR)
1 6
E1 C1
2 5
B1 B2
3 4
C2 E2
Q4003
LTC124EUB
GND GND
V-5V
1 5 0 5 8 2 9
P P
4/5 3/5
RYC
Q4006
RYS
LTA124EUB
Q4008
LTA124EUB
Q4007 DCdetRY
RT1N140M
Q4009 DCdetRY
RT1N140M
GND
GND
P
2/5
P
3/5
AMPDISABLE1
P
4/5
AMPDISABLE2
OVER HEAT
P
AMPDISABLE3
5/5
DETECT CIRCUIT
AMPDISABLE4
V+5V
R4058
68k
6
8
D4005
7
1SS352
4
5
IC4001
BU7262SFVM
(2/2)
IC4001
BU7262SFVM
2
GND
R4062
3
3.3k
GND
DC DETECT
2SA1576A(QR)
CIRCUIT
Q4020
m
co
Q4021
2SC4154(EFG)
IC4000
NM
(1/2)
GND
4
2 8
9 9
P
2/5-5/5
P
2/5,3
AMUTE
V-5V
P
4/5
SBMUTE
V-5V
9 4 2 8 9 9
P
5/5
P
2/5
RYA
Q4004
LTA124EUB
Q4005
RT1N140M
GND
(1/2)
8
1
4
R4064
47k
DCdetRY