Pioneer VSX-1131 Service Manual page 43

1
Power supply section
MODEL NO. VSX-831/LX101/1131/LX301
D8968 DZ2J062M0L
D
DA2J10100
D8969
+12VSTB
WR_MODE1
C
B
D8900
CUS357
A
GNDDG
1
2
+5.0S
NM
D7013
Q8975
RBR3MM30ATR
5 VOUT 1 +5.0S
VIN
VSS 2
NM
4 CE 3
NC
XC6701B502PR
Q7024
NM
NM
R8969
+5.0S
47k
NM
NM
R8968
Q8962 +5.2V
2SC2712-GR
47k
47k
R8985
L8963
L8962 NM
L8964
1255AS-100M
NM
Q8952
R8958 +3.3V
2SC2712-GR
47k
L8954
BLM21PG221SN1
L8952
L8953
1255AS-100M
BLM21PG221SN1
PON_HDMI
D8942
DA2J10100
PON_NET
R8990
Q8942
R8959
NM
1k
+1.8V
D8943 NM
DA2J10100
L8944
L8942 NM
L8943
1255AS-100M
L8941
NM
BLM21PG221SN1
2
3
SCHEMATIC DIAGRAM (PART-10)
D7006 CUS357
Q7018 +3.3S
1 VOUT 5
VIN
2
VSS
3 NC 4
ON/OFF
S-1333A33-M5T1U3
3.3VTU
+3.3VTU
Q8004
S-1333A33-M5T1U3
+5.0VDIS
2SA1162-GR Q7027
1 VOUT 5
VIN
2
VSS
3 NC 4
ON/OFF
GNDSH
Q8005
DTC044EEBTL
PON_TU
PON_DIS
DA2J10100
+5.0V_VD
D8907
+5V_VD
L8965
Q8907
BLM15PX181SN1D
1 VOUT 5
VIN
2
VSS
3 NC 4
CE
MM3464A50NRE
MM3404A50NRE
PON_M2
+5.2VDC
+5.0VHT
DA2J10100
D8909
Q8965
1 VOUT 5
VIN
2
VSS
3 NC 4
CE
MM3464A50NRE
PON_HDMI
+3.3VDSP
D8967 @asimP
Q8967
5 VOUT 1
VIN
GND 2
4 OC 3
EN
+3.3VDC
FP6861C-B1AS5CT
PON_M2
PON_HDMI
D8901 CUS357
TP882
TPS22924CYZPR
+3.3VHT
Q8946
A2 A1
VIN VOUT
B2 B1
VIN
VOUT
C2 C1
ON GND
+3.3VNET
Q8900
FP6861C-B1AS5CTR
PON_HDMI
5 1
VOUT
VIN
R8901 2
GND
1k
4 3
EN
OC
+3.3VHT
+1.8VDC
R8988
0
+1.8VHT
TP883
Q8944
5 1
VIN VOUT
2
GND
4 3
EN
OC
NM
3
4 5
Schematic Diagram
BAPRC-2034 (11/11)
POFF
POFF
WR_MODE1
PON_HDMI
PON_HDMI
PON_M2
PON_M2
PON_NET
PON_NET
0
GNDSH GND_TU ST_PON
ST_PON
PON_DIS
R1174
PON_DIS
GND_TU
PON_TU
PON_TU
PART-35
+5.2VDC
VMPU SECT.
PART-35
+5.2VDC
NET/USB SECT.
+3.3VNET
+1.0V
R8939
1k
L8934
L8932 NM
L8933
1255AS-100M
NM
R8904
+1.1V
D8902
1k
CUS357
R8903
+3.3VHT
1k NM
L8924
L8922 BLM21PG221SN1
1255AS-100M
L8923
BLM21PG221SN1
D8900-D8902: To prevent reverse voltage from HDMI TX.
4 5
6
POWER SECTION
+5.0VHT
+3.3VHT
+1.8VHT
+1.1VHT
+1.0VDSP
TP884
+3.3VDSP
+1.0VDSP
+1.1VHT
TP885
6
D
C
B
A