Icepower Amp Assy (1/5) - Pioneer SC-27 Service Manual

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10.24 ICEPOWER AMP ASSY (1/5)

A
VCC
A
Y
GND
GND
IC4003
V+5V
VCC
A
Y
GND
GND
B
C
CN4000
9604S-17C
ICELR 1
ICESLR 2
ICESBLR 3
ICEC 4
ICEMUTEA 5
ICEMUTESB 6
AMSW 7
XOLERR
8
RY AF 9
RY CR 10
RY CR 11
RY B 12
AMPTEMP 13
XTEMPERR5 14
XDCERR 15
D
GNDHD 16
GNDHD 17
GND1
GND
E
F
Q
1/5
136
1
2
D4007 1SS352
R4080 R4084
3.3k 12k
A
GND
D4008 1SS352
R4081 R4085
3.3k 12k
D4009 1SS352
GND
R4082 R4086
3.3k 12k
IC4003
D4010 1SS352
GND
R4083 R4087
3.3k 12k
R4001
100
GND
R4005 8.2k
R4002
100
R4006 8.2k
R4003
100
R4007 8.2k
R4004
100
R4008 8.2k
GND
R4028 R4030
100
100
R4031
R4029
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
DCdetRY
GND
R4021
100
R4022
R4024
100
100
R4025
100
R4023
R4026
100
100
Q
2/5-5/5
GND
2
3
V+5V
IC4004
TC74VHC08FTS1
14
12
D4011
11
VCC
R4013
Y
1SS352
13
GND 7
100
IC4003
TC74VHC04FTS1
IC4004
GND
14
9
D4012
8
VCC
R4014
Y
A
1SS352
10
GND 7
100
IC4003 TC74VHC08FTS1
IC4004
14
4
D4013
6
VCC
R4015
Y
A
1SS352
5
GND 7
100
IC4003 TC74VHC08FTS1
IC4004
14
1
3
VCC
R4016
Y
A
2
GND 7
100
IC4003
Q
AMPDISABLE1
AMPDISABLE2
AMPDISABLE3
AMPDISABLE4
Q 5/5
R4033
0
1
7
2
IC4006 (1/2)
NM
AM CONTROL
CIRCUIT
OSC1
Q 2/5-5/5
GND
V-5V
Q
2/5-5/5
RYS
Q
Q4008
RYB
LTA124EUB
Q 4/5
Q4010
LTA124EUB
Q4009 DCdetRY
RT1N140M
Q4011 DCdetRY
RT1N140M
GND
GND
D4001 1SS352 R4009 220
R4010
D4002 1SS352 220
R4011
D4003 1SS352 220
R4012
220
D4004 1SS352
IC4005
HA17431GLTPA
R4094
2.2k
R4054
3.3k
IC4000
BU7262SFVM
5
(2/2)
GND 4
V+5V 7
8
6
R4097
0
GND GND
TEMP_OUT
GND GND
HN1C01FU(YGR)
Q4014 Q
2/5-4/5
1 6
E1 C1
2 5
DC_DETECT1
B1 B2
3 4
C2 E2
GND
HN1C01FU(YGR)
Q4016
Q 2/5-5/5
1 6
E1 C1
2 5
DC_DETECT2
B1 B2
3 4
C2 E2
GND
SC-27
3
4
AMPOVERLOAD
R4088 R4089
Q4015
12k 12k
2SC4154(EFG)
GND
GND
D4014
1SS352
GND
2/5
R4032
0
Q 3/5
V+5V
Q 4/5
R4076
IC4006 (2/2)
NM
HN1A01FU(YGR)
8
5
3
6
4
GND
GND
GND
Q4004
RYC
LTA124EUB
Q4006 Q 5/5
LTA124EUB
3/5
Q4005
RT1N140M
Q4007 DCdetRY
RT1N140M
GND
GND
Q
2/5
AMPDISABLE1
Q 3/5
AMPDISABLE2
Q
4/5
AMPDISABLE3
Q
5/5
AMPDISABLE4
V+5V
OVER HEAT
DETECT CIRCUIT
V+5V
R4058 68k
2
8
D4005
1
V+5V
1SS352
4
3
IC4000 (1/2)
BU7262SFVM
GND IC4001 (1/2)
BU7262SFVM
2
GND
R4062
3
3.3k
GND
V+5V
V+5V
D4006
NM
IC4001
BU7262SFVM
GND GND
6
R4069
5
47k
R4070
750k
GND
4
Q 2/5-5/5
R4073 22k
Q4012
HN1A01FU(YGR)
E1 1 6
C1
5 V+5V
B1 2
B2
4
3
E2
C2
Q4002
LTC124EUB
GND V-5V
V+5V
22k
Q4013
E1 1 6 C1
B1 2
5
B2
4
3
E2
C2
Q4003
LTC124EUB
V-5V
RYA
Q 2/5
C
8
1
4
R4064
47k
GND
DCdetRY
V+5V
(2/2)
GND
8
7 DC DETECT
CIRCUIT
4