Sony VPL-PX32 Service Manual page 114

• Refer to page 7-5 for Printed Wiring Board
• Refer to page 7-9 for IC Block Diagrams
1
CN804
50P
WHT
TO QB CN1204 JL884
#
INPUTA SW1 A1 INPUTA SW1
JL885
GND B1 (P1)
#
INPUTA SW2 A2 INPUTA SW2
GND B2 (P1) AUDIO BL
D831
GND A3
UDZSTE-173.9B
FB801
GND B3 PROTECT
JL886
BK2125HM601
#
8
USB DS+ A4
USB DS+
B4 (P1) AUDIO BR
R1031
USB DS+ A5 15k
:CHIP
USB DS+ B5
GND A6 AUDIO-INPUT-B
GND B6
D832
GND A7
2
UDZSTE-173.9B
JL887
GND B7
# PROTECT
9
USB DS-
A8
FB802
USB DS- B8
BK2125HM601
USB DS-
A9
R1032
15k
USB DS- B9
:CHIP
GND A10
AUDIO AL
GND B10
FL804
D833
STS104B C902
GND A11
100
RD5.6SB-T1
(P1)
JL888 6.3V
GND B11
PROTECT
# :AL-CP
USB 5V A12 EMI
AUDIO AR
USB 5V
B12
USB 5V A13
USB 5V B13
AUDIO-INPUT-B
C901
USB 5V A14 0.1
25V
USB 5V B14 B:CHIP
SUB 5V A15 SUB 5V (P1)
USB 5V B15
GND
A16
GND B16
US VBUS
A17
3 US VBUS B17 US VBUS
(P1)
GND A18
GND B18
GND A19
JL889 FB803
GND B19
# BK2125HM601
5
USB US+ A20
USB US+
B20
R1033
USB US+ A21
15k
:CHIP
USB US+ B21
GND A22 (P2) AUDIO OL
D834
GND B22 UDZSTE-173.9B
GND A23 PROTECT
FB804
JL890
GND B23 BK2125HM601
#
6
USB US-
A24 (P2) AUDIO OR
USB US- B24
R1034
USB US-
A25
15k
:CHIP
USB US- B25 AUDIO OUT
JL891
D835
#
UDZSTE-173.9B
PROTECT
4
VIDEO L
(P2)
VIDEO R
5
A B
C911
C910
0.0022
C913
#
B:CHIP
#
C914
R1044 10
16V
0
:AL-CP
SHORT
C903 R1042 36 35 34 33 32 31 30 29
R1035 4.7
0
470k 35V
SHORT
:CHIP :AL-CP R1041
#
L-INPUT-B
R1043
0
L810
D836 C946
SHORT 37 GAIN12
OUH
RD9.1SB2 0.1
25V
PROTECT 38
GAIN11
B:CHIP
39 IN14
R-INPUT-B 40 IN13
L
L811
D837
41 IN12
OUH
RD9.1SB2
L
PROTECT
42 IN11
C904 R
R1036 IC819
470k 4.7 43 IN21
CXA1946AR
35V
:CHIP R
:AL-CP AUDIO SW1
44 IN22
PROCESSOR
R1045
45
IN23
#
46 IN24
47
GAIN21
C909
48 GAIN22
0.1
R1046
25V 0
B:CHIP :CHIP
C905
R1037
4.7
470k
35V R1047
:CHIP :AL-CP
0
1 2 3 4 5 6 7
:CHIP
L-INPUT-A
L812
D838
OUH C917
RD9.1SB2
10
PROTECT R1048 16V
0 :AL-CP
:CHIP
R-INPUT-A
C920
C918
L813 C919 0.0022
D839 # #
OUH B:CHIP
RD9.1SB2
PROTECT
R1038
C906
470k 4.7
:CHIP 35V L R
:AL-CP
L
R
D826
1SS355
MUTE OR MUTE OR
R1077
1k
:CHIP
C907
4.7 Q831
35V 2SC2712
:AL-CP
SW D845
L814 R1074 RD3.3SB2
0
OUH 1k MUTE
:CHIP
L-OUT
R1039 D840
470k
RD9.1SB2 0 D842
:CHIP
PROTECT
0 RD3.3SB2
MUTE
L815 R1075
OUH 1k
0
:CHIP R1076
R-OUT D844
1k
R1040 -0.4
DAN202K
D841 :CHIP
470k 0
MUTE MIX
:CHIP RD9.1SB2 0 Q833
PROTECT
2SA1162
C908
0 MUTE
Q832
4.7
35V 8.8
2SC2712
:AL-CP C939
SW
10
16V
:AL-CP
D843
DAN202K
MUTE
(P1)
C
QA (3/3) QA (3/3)
C912
1 R1053
16V 100
B:CHIP :CHIP
C916
C915
10 10
16V
16V
:AL-CP :AL-CP
C928
1
16V
28 27 26 25
R1097 B:CHIP
220
B:CHIP
:CHIP
R1050
R1096 R1098 R1099
220 100
FNTO1 24 # #
L
:CHIP :CHIP
:CHIP :CHIP
23
REO1
C930
CE 22 1 16V B:CHIP
CLK 21
C924
R1051
10
R1049
DGND 20 100
16V C956
10k
:CHIP # C957
:AL-CP :CHIP
GND 19 B:CHIP #
B:CHIP
VCC 18
VCT 17
16
DATA
C926
TIMER 15 C927
100
0.1
C925 16V
14
REO2 25V
0.01 :AL-CP
B:CHIP
R B:CHIP
FNTO2 13
8 9 10 11 12
C923
10
R
16V
:AL-CP
C922
10
C921 L
16V
:AL-CP 1 R1052
10k
16V
:CHIP
B:CHIP
R1091
:CHIP
D827
1SS355
Q834
2SC2712
MUTE R1079
0
100k
:CHIP R
0
Q835
0
2SC2712
R1086
MUTE C944
R R1081 R1082
2.7k
22
100k 100k R1085 :CHIP
R1078
16V
0 :CHIP :CHIP 100
1k
:AL-CP
:CHIP :CHIP
R
R1087
C938 0 C940
R1080 5.1k
1 1
0
100k 16V :CHIP
16V
:CHIP
B:CHIP B:CHIP
L
8 7 6 5
C942
0.1
25V
IC821
B:CHIP
LM358PSR
VAR AMP
L
R1088
1 2 3 4
100
L
:CHIP
C941
1
16V R1089
B:CHIP C943 5.1k
0.1 C945 :CHIP
25V 22
R1083 B:CHIP 16V
:AL-CP
100k
R1084
:CHIP
100k
:CHIP
R1090
2.7k
:CHIP
C947
C948
MS5V 22
1
16V
16V
:AL-CP
B:CHIP
8 7 6 5
R1095 R1019
IC822
1k
µPD16875G 1k
:CHIP
POWER SUP :CHIP
R1014
100
1 2 3 4
:CHIP
R1018
100
:CHIP
7-8 7-8
D E
C929
1
16V
R
IC820
L #
SOUND PROCESSOR
C931
1 16V B:CHIP
VCC REFIN
C935
INR INL #
R1054 R1057 C934 R1060
R1022
# # # # L
SHORT
DIFF OUTL
C932
R1059
#
#
FIL CNTL
R1056 R1021
# SHORT
OUTR GND
R1055 C933 R1058 R1020
# # # #
R1061
1k
:CHIP
Q836
8.9
2SC2712 C936 R
3.9
L 22
MIX
16V
:AL-CP
R1064
100
R1065
:CHIP
1k
Q838
:CHIP
R1070 2SC2712
1k MIX
:CHIP
R1092 3.2
1k 1k
:CHIP
R1072
Q837 8.9 1k
2SC2712 R1071 :CHIP 2.5
R
MIX 1k
R1073
:CHIP
1k
:CHIP
R1068
3.8
C937
100
0.015
3.2
:CHIP R1069
B:CHIP
1k
:CHIP
L
R
9V
L816
OUH
:CHIP
R1093
1k
:CHIP
R1094
1k
:CHIP
AUDIO MUTE
R1017
100
:CHIP
MS P.ENA
USB P.FLG
USB P.ENA
QA(3/3)
(INPUT SW)
F
CN808
2P
WHT-L
:SMD
TO GA CN2105
JL900 #
1 AUDIO+B
JL899 #
2 AU GND
CN809
JL894 #
L/R 3P
1
WHT-L
JL907 #
2 GND :SMD
TO K CN2900
3 SP-MUTE
1 AUDIO+B
AU GND
2
3 NC
JL892 # CN810
L
4 9P
WHT-L
5 GND
TO KS CN2951
6 NC
JL893 #
7 R
JL896 #
8 GND
JL895 #
9 SP-MUTE
SRS ON (P1)
SPEAKER MUTE (P1)
B (P1)
4
AUDIO CE
2
SCLK
3
SDAT
1
12
SUB 5V
10
7
11
B-SS1717-QA.-P3
VPL-PX32
G H