Ir Power Amp Assy (1/6) - Pioneer SC-LX85 Service Manual

1

10.28 IR POWER AMP ASSY (1/6)

A
R4036 R4037
100
100
GND
B
R5056
100
R5057
100
R5058
100
G
CN7006
R5070
CN4000
9604S-19C
C
DATA 1
CLK 2
OE 3
STB 4
XOLERR 5
XBERR 6
ICEMUTEA 7
ICEMUTESB 8
MUTEFH 9
RY FW 10
RY AF 11
RY CR 12
RY FH 13
RY B 14
AMPTEMP 15
XTEMPERR5 16
XDCERR 17
GNDHD 18
GNDHD 19
D
GND1
R
4/6
GND
DC_DETECT5
HN1C01FU(YGR)
Q4029
6 1
C1 E1
5 2
B2 B1
4 3
E2 C2
HN1C01FU(YGR)
GND
C1
DC_DETECT4
R
6/6
B2
E2
HN1C01FU(YGR)
E
GND
C1
DC_DETECT3
R
3/6
B2
E2
GND
R
2/6
DC_DETECT1
GND
DC_DETECT2
R
5/6
F
R
1/6
148
1
2
V+5V
AM CONTROL
CIRCUIT
OSC1
R
2/6 - 6/6
GND
V-5V
GND
V+5V
YB
C4086 0.1u/50
C4087 470p/50
IC4007
1 16
STB VDD
2 15
DATA OE
3 14
CLOCK Q5
4 13
Q1 Q6
5 12
Q2 Q7
6 11
Q3 Q8
7 10
Q4 QS'
8 9
VSS QS
BU4094BCFV
GND
100
Q4033
LTA124EUB
R4043
OE
100
GND
GND
R5082 100 R5064 100
R4046 100 R4050 100
R4047 100 R4051 100
R4048
R4052 100
100
R4049 R4053
100 100
R4034 R4035
100 100
DCdetRY
R4092 GND
R4093 100
XBERR
100
R4024
R4022 100
100
R4025
R4021 100
100
R4026
R4023 100
100 IC4005
HA17431GLTPA
Q4028
GND
6 1
E1
5 2
B1
4 3
GND
C2
R
Q4027
6 1
E1
5 2 2/6 - 6/6
B1
4 3
C2
HN1C01FU(YGR)
Q4014
6 1
C1 E1
5 2
B2 B1
4 3
E2 C2
HN1C01FU(YGR)
Q4016
6 1
C1 E1
R4017
5 2
B2 B1
0
4 3
E2 C2
GND
2
3
R
2/6
IREN_LR
R R
3/6
IREN_SLR
IREN_SBLR
R
6/6
IREN_C
R
5/6
IREN_FHLR
R
4/6
R4001
100
R4002
100
R4003
100
R4004
100
R5065
100
V+5V
R4044
AMPOVERLOAD
1.5k
R
2/6 - 6/6
RYB
Q4010
LTA124EUB
RYH
Q4018
LTA124EUB
Q4011 DCdetRY
RT1N140M
DCdetRY
Q4019
GND
R
6/6
RT1N140M R
4/6
GND
GND D4001
NM
R4009 NM
AMPDISABLE1
R4010
NM
AMPDISABLE2
R4011
NM
D4002
AMPDISABLE3
NM
R4012
NM
AMPDISABLE4
R5071 NM
D4026
AMPDISABLE5
NM
R4094
2.2k
R4054
3.3k
IC4000
NM
5
(2/2)
4
R4095
7
8
0 6
R4097
0
GND GND
TEMP_OUT
GND
GND
V+5V
GND
GND GND
GND
IC4000
2
NM
8
1
(1/2)
R4069
4
3
NM
GND R4070
NM
GND
SC-57
3
4
D4007 NM
R4080 R4084
0 0 R4013
100
GND
D4008 NM
GND
R4081 R4085
0 0 R4014
100
D4009 NM
GND
R4082 R4086
0 0
D4010
NM
GND
R4083 R4087
0 0
D4006
NM
GND
R5068 R5069
0 0
GND
GND
R5080
HN1A01FU(YGR)
R4099
R4098
100
100
GND
GND
RYC
Q4006
RYS
LTA124EUB
Q4008
LTA124EUB Q4005
RT1N140M
Q4007 DCdetRY
RT1N140M
Q4009 DCdetRY
RT1N140M GND
R
5/6
GND
R
3/6
R
2/6
R
3/6
R R
6/6 5/6
OVER HEAT
R
4/6
DETECT CIRCUIT
V+5V
R4058
68k
6
8
*D4005
7 *R5031 *R5032
0 0
1SS352
4
5
IC4001
BU7262SFVM
(2/2)
IC4001 (1/2)
BU7262SFVM
2
8
1
R4062
4
R4064
3
3.3k
47k
GND
DCdetRY
DC DETECT
LSA1576UB(QRS)
CIRCUIT
Q4020
Q4021
LSC4081UB(QRS)
GND
GNDP
GND
4
V+5V
*IC4004
TC74VHC08FK
14
12
D4011
R4088
11
12k
13
7
1SS301
*IC4004
14
9
8
10
7
TC74VHC08FK
*IC4004
14
4
D4012
6
R4015
5
7
100
TC74VHC08FK 1SS301
*IC4004
14
1
3
R4016
V+5V
2
7
100
1 5
VCC
R5067
2
1SS35
3 4
100
GND
*IC4905
TC7SH08FUS1 D401
GND
R402
100
22k
V+5V
Q4035
1 6
E1 C1
2 5
B1 B2
3 4
C2 E2
Q4036
LTC124EUB
V-5V
GND
V-5V
RYW
Q4031
RYA
R
LTA124EUB
4
Q4004
LTA124EUB
Q4032
RT1N140M
DCdetRY
GND
R
2/6
OVP&U
DETEC
V+64V
330p
CH C
D40
*R5012
2125
10k
RKZ24K
D4017
RKZ18KG(B2)
330p/50
C4047
*R5034
330p
NM CH C
*R5035
D40
0 *R5020
2125
10k
RKZ24K
GND
D4021
RKZ18KG(B2)
C4051 330p/50
V-64V