Mother Assy - Pioneer VSX-49TX Service Manual
Audio/video multi-channel receiver
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Also See for VSX-49TX:
- Supplementary manual (2 pages) ,
- Operating instructions manual (120 pages)
Table of Contents
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1
VSX-49TX, VSX-47TX
3.1.3 Power Supply Block
Power Supply Block
AJ
SP (B) ASSY
A
CN1002
FU1
LIVE
1
2
NEUTRAL
AM
TRANS (A)
B
ASSY
VL AC1
VL AC2
CN1601
5
4
3
2
1
CN1702
7
6
5
4
3
2
IC1703
C
D1701
CN1701
(3P)
1
3
AN
TRANS (B)
ASSY
V
+VH
-VH
10
10
+VH
11
11
-VH
CN4807
CN4805
(15P)
(15P)
W
POWER
AMP (C)
D
ASSY
X
18
1
2
CN1103
(8P)
RY-24V
+13V
7
CN1005
ST+12V
1
1
RY-24V
7
7
CN1102
RY-24V
(7P)
CN1001
(10P)
T1101
1
1
9
9
RY1002
CN1101
(10P)
3
RY1001
AB
2
1
CN1003
AK
DIODE ASSY
GRY
D1501
D1502
RED
+VL (+54V)
BLU
BRN
-VL (-54V)
VP AC2
VP AC1
CN1802
CN4001
VD AC2
FU4 4A
VP AC2
12
1
1
VD CT
VP AC1
11
2
2
VD ACT
FU5 2A
VD AC2
10
3
3
VD CT
9
4
4
FU6 2A
VD AC1
8
5
5
VA AC2
VA AC2
7
6
6
VA CT
FU7 2A
VA CT
6
7
7
FU8 2A
VA AC1
VA AC1
5
8
8
FL AC2
4
FL AC1
3
FL VF
FL AC2
2
1
1
FL AC1
CN1801
2
2
I
FL VF
(12P)
3
3
Q1901
CN1803
CN1901
(4P)
(4P)
AL
AE
VH AC1
FUSE
FL SUPPLY
VH AC2
ASSY
ASSY
M
DISPLAY
POWER AMP
ASSY
(L) ASSY
-VH
7
7
+VH
6
6
CN4803
CN4809
(11P)
(11P)
+VH
-VH
5
5
+VH
6
6
-VH
CN4804
CN4810
(9P)
(9P)
Y
POWER AMP
POWER AMP
(R) ASSY
(BR) ASSY
2
3
IC1102
CN1105 CN1301
NJM79M24FA
O
I
1
1
REG.
3
3
FAN -27V
3
I
O
ST+5.6V
REG.
5
CN1104
D1101 IC1101
(14P)
NJM78M56FA
AC PRIMARY
ASSY
AI
AA
DSP DIODE
LOCAL SUPPLY
ASSY
ASSY
D1903
4
4
VP+9V
1
1
3
3
CN1904
J4002
J4002
CN1904
IC4023
D4002
LM2940CT-5.0
IC4024
NJM79M05FA
D4003
IC4035
NJM78M56FA
IC4036
D4004
LM2940CT-5.0
NJM79M05FA
IC4047
NJM78M15FA
AC2
1
AC1
2
NJM7820FA
O
VH
REG.
3
CN1902
NJM7918FA
(4P)
IC4045
IC4046
CN4002
(3P)
D4005
VH AC1
1
Q4051
I
REG.
VH AC2
3
Q4052
I
REG.
3001
+43V
CN3001
(17P)
AC1
U+5.6V
U+5.6V
AC2
1
ST+5.6V
ST+5.6V
2
-VH
2
+VH
1
V+20
4
CN4811
CN5005
(8P)
A+20
3
RY-24V
CN1205
7
(8P)
AC
SW1301
RY-24V
POWER
POWER
SW
ASSY
FAN -27V
ST+5.6V
CN5801
(14P)
+5V REG.
I
O
1
+5VP
J4001
IC4011
(2P)
LM10851T-5.0
CN4004
CN5805
IC4021
(9P)
(9P)
I
O
+5VD
REG.
1
IC4022
I
O
-5VD
REG.
2
IC4033
I
O
+5.6VU
REG.
5
IC4031
I
O
+5.6VV
REG.
3
IC4032
I
O
-5.6VV
REG.
4
IC4043
I
O
+15VT
REG.
6
IC4041
I
O
+20VA
REG.
7
IC4042
I
O
-20VA
REG.
8
J4004
(6P)
+27VF
1
-27VF
3
O
+55VH
4
O
-55VH
6
CN5807
(17P)
17
16
CN5004
6
4
3
1
(6P)
V+27
2
5
V-27
1
7
V+20
4
8
IC5002
V-20
10
10
NJM78M15FA
V+16
(8P)
O
I
CN5003
CN5819
REG.
(24P)
(24P)
I
O
REG.
V-16
IC5003
NJM79M15FA
Q
VR & PRE OUT
ASSY
4
AD
SP (A)
ASSY
+5VP
R
MOTHER
ASSY
3
VST5
5
V+5D
1
2
V-5D
V+5U
5
V+5V
3
4
V12T
V-5V
6
V+20V
7
8
V-20V
V+5U
VST5
V+27
5
7
V+20
8
V-20
4
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