Sony VPL-PX32 Service Manual page 112

• Refer to page 7-5 for Printed Wiring Board
• Refer to page 7-9 for IC Block Diagrams
CN803
JL801 #
50P
IRD A (P2)
1
WHT
JL898 #
TO QB CN1203 MS5V (P3)
JL805 #
IRD A A1 AUDIO AL (P1)
JL803 #
C895
IRD A B1 DS2-
22
(P2) 6.3V
MS5V A2 JL804 #
:ALB-CP
DS2+
MS5V B2
BR
JL806 #
C802
DS2- A3 AUDIO AR (P3)
22
C967
6.3V
DS2- B3 0.1 R822
:ALB-CP
25V 82k
DS2+ A4 B:CHIP :CHIP
C959
DS2+ B4
22
6.3V C965
GND A5 0.1 R925
:ALB-CP
25V 82k
GND B5 B:CHIP :CHIP
BNC R
AUDIO AL A6
C964
AUDIO AL B6 0.1
R929
R801 R802 25V 82k
C894
GND A7 150 150 B:CHIP
:CHIP
22
:RN-CP :RN-CP
6.3V
GND B7
:ALB-CP
GND A8
BG
C898
GND B8 C968
22 0.1
6.3V
AUDIO AR A9 25V R926
:ALB-CP
B:CHIP 82k
AUDIO AR B9 :CHIP
GND A10 C974
0.1
C958
GND B10 25V 22 R928
R804
B:CHIP 82k
6.3V
150
GND A11 BNC G :ALB-CP :CHIP
:RN-CP R805
150
GND B11
:RN-CP
2
JL807 C973
AR A12
# 0.1 R834
82k
25V C893
AR B12
B:CHIP 22 :CHIP
AR 6.3V
A13
:ALB-CP
BB
AR
B13
C961
C949
GND
A14 22 0.1
6.3V 25V R836
GND
B14 :ALB-CP B:CHIP 47k
:CHIP
GND
A15
C975 C899
GND 22
B15 0.1
6.3V
25V R839
JL808 :ALB-CP
AG 82k
A16 B:CHIP
#
:CHIP
BNC B
AG
B16
R806 R807
150 150
AG
A17
:RN-CP :RN-CP C971
R837
0.1
AG B17 82k
25V
R808 :CHIP
B:CHIP
GND A18
33
:CHIP
GND B18 AH (P2)
R809
GND A19
560
:CHIP
GND B19 (P2)
JL809
#
AB A20
AB B20
AB A21
AB B21
GND A22
JL810
GND B22
#
AH A23
3
JL811
AH B23
#
GND A24 AV (P2)
GND B24 R803
1k
AV A25 :CHIP
AV B25
JL812
#
CN805
50P
WHT
JL813
TO QC CN1804
#
IRD B A1 IRD B (P2)
IRD B B1
SUB5V A2 SUB5V
JL814
SUB5V B2
#
GND A3
GND B3
GND A4
GND B4
GND A5
(P3)
JL815
GND B5
#
AUDIO BL A6 AUDIO BL
AUDIO BL B6
GND A7
GND B7
JL816
#
GND A8
AUDIO BR
4
GND B8
BR
AUDIO BR A9
AUDIO BR B9
GND A10
GND B10
GND A11
R810 R811
GND B11
JL817 150 150
#
:RN-CP :RN-CP
BR A12
BR B12
BG
BR A13
BR B13
GND A14
GND B14
GND A15
GND JL818 R812 R813
B15
# 150 150
BG :RN-CP :RN-CP
A16
BG
B16
BG
A17
BG
B17
GND
A18
GND
B18
GND
A19
JL819
GND
B19
#
BB
BB A20
5
BB B20
R814 R815
BB A21
150 150
:RN-CP :RN-CP
BB B21
GND A22
JL906
GND B22
#
BH A23 BH
R816
BH B23
33
R817
:CHIP
GND A24 (P2)
560
:CHIP
JL905
GND B24
#
BV A25 BV
R818
BV B25 1k
JL822
:CHIP
#
A B
C849
5V
22
IC823 6.3V
5V
:AL-CP
HA4314BCB
D801
R931 SELECT C972
MA157-TX 100 0.1
PROTECT :CHIP 25V
B:CHIP
C960
0 5.0
47
R831
R825 6.3
5.0 2.2k
100 :ALB-CP
:CHIP
:CHIP R
0.4
0.2
D802 R823
MA157-TX C969 47k
0 0
0.1 :CHIP
PROTECT
R
25V
B:CHIP 5V
R924 0 -5.0 C963
100 0.1
:CHIP 25V
D803 IC824
B:CHIP
MA157-TX HA4314BCB
PROTECT SELECT C801
R932 C804
22
100 C970 47
6.3V
:CHIP 0.1 6.3V
:AL-CP
25V :ALB-CP
G
B:CHIP
0 5.0
D804
MA157-TX R930
5.0 R826
100
PROTECT C892 47k
:CHIP 22 C805
0.4 :CHIP
6.3V 0.1
:AL-CP 25V R827
D805 0.2
B:CHIP C808 18k
MA157-TX :CHIP
47
0
PROTECT 16V
G
:AL-CP
-5.0 C966
R821
0.1
100
25V
:CHIP IC825
D807 B:CHIP
C891
HA4314BCB
MA157-TX 22
R824
SELECT 6.3V
PROTECT C980
100
:AL-CP 47
:CHIP C803
6.3V
0.1 B MON
:ALB-CP (P2)
25V
0 5.0
B
B:CHIP
D812
R927 5.0
MA157-TX
100 C900 R835
PROTECT
:CHIP 0.4 47k
22 C807
6.3V :CHIP
0.1
0.2 :AL-CP
25V
D821
B:CHIP
0 0
MA157-TX
PROTECT B
C820
R833 0 -5.0 -5V 1mF
10V
100
:CHIP :AL-CP
C962
D811
0.1
C850
MA157-TX 25V
22
PROTECT 6.3V B:CHIP
:AL-CP
SYNC SW2
R843
4.7k
0 :CHIP
0.4
Q802 R844
C816
DTC114EKA #
R838 10
:CHIP
SW 6.3V
1.2k
0 :RN-CP :ALB-CP
RE H
C821
2.4
R840 0.068
330 C817 25V
2.6
10
(P2) :RN-CP B:CHIP
6.3V
:ALB-CP
RE V
C822
R842 10
R841
1.2k 16V
330
:RN-CP :AL-CP
:RN-CP
R1100
2.2k
:CHIP
R876 R877
100 100
:CHIP :CHIP
R878
10k
:CHIP
SYNC SW3
R879
10k :CHIP
R832
(P2)
2.2k
:CHIP
IC806
R923
SYNC SW1 CXA1875AM
100
:CHIP DAC
0
Q804
Q808 SW1
4.2 #
R875 0
DTC114EKA
100
SW0
SW :CHIP
0 4.9
DAC4
0.4 4.9
0 DAC3 SAD2
R867 0.4
100
DAC2 SAD1
:CHIP
0.4
DAC1 SAD0
0.4 4.8
DAC0
0.4 5.0
R868
GND
100
0 5.0
:CHIP
R869
100
:CHIP
IC807
R874
CXA1875AM
2.2k
DAC
:CHIP
SW1
D871
RB501V SW0
4.2 4.9
DAC4
0.5
R870
DAC3 SAD2
100
0.4
D872 :CHIP
RB501V DAC2 SAD1
0.4 4.8
DAC1 SAD0
0.4
DAC0
R871
MON OUT OFF 5.0
100
GND
:CHIP
5.0
(P2) R872
CV/OTHER
100
:CHIP
YC/OTHER
SRS ON
R873
(P3)
100
SPEAKER MUTE
:CHIP
C
QA (1/3) QA (1/3)
C844
0.1
25V
9V
B:CHIP
C843
(P2) A
47
Q811
16V
2SC3545 4.4
:AL-CP
C BUFF
R MON (P2)
B/B-Y
(P2) 3.7
1
R899
3.9k
:CHIP
5V C810
47
6.3V
G MON
(P2) Q812
:AL-CP
2SC3545
IC801 4.4
C BUFF
EL4332C
C811
SELECT 0.1
V-B
25V
G/Y
C809 B:CHIP
0.1 (P2) 3.7
25V
OUT1 A/B 2
B:CHIP
0.2 0.4
C812
GND1 VCC
R904
47
0 3.9k
6.3V
A1 VCC :CHIP
:AL-CP
0.3
V-R
B1 VEE
C813
Q805 0 -5.0 Q813
V-G 0.1
B2 A3
2SA1462 2SC3545
25V
C BUFF 0 0 4.4
R829 B:CHIP C BUFF
A2 B3
82
0.2 0
:RN-CP
GND2 GND3
0 0 R/R-Y
-5V
2.4 1.7 OUT2 OUT3
(P2)
0 0 3.7
3
R828 R830
8.2k 2.7k
R909
:CHIP :CHIP
3.9k
:CHIP
R856
1k B
:RN-CP
G
R
5V
IC803
C825
47 TC74VHC244F
R845
IC802 R846 6.3V SELECT
56k
M52347FP 4.3k :AL-CP
:CHIP
SYNC SEP :RN-CP
C826
0.1
H.STATE CLP T 25V 1G VCC
R847
3.0 3.3 3.3
C824 B:CHIP
10k
V.STATE V.POL 220p 1A1 2G
:CHIP
0 0 0.4
CH:CHIP
CLP SW H.POL 2Y4 1Y1
0 0 0 3.2
G IN CLP 1A2 2A4
2.9 0 0.2 4.9
GND VCC 2Y3 1Y2
R848
0 R851 0 0
R852
COMP/H 10k 10k
HD-OUT # 1A3 2A3
IN :CHIP :CHIP
0 0 0
COMP/H
HD+OUT 2Y2 1Y3
DET R849
0.2 R853 0 0
10k :CHIP
V IN VD+OUT 150 :RN-CP 1A4 2A2
0 0.2 5.0 0
R850
V DET V S OUT 2Y1 1Y4
43k
0 0.2 3.2 3.2
:RN-CP
R854
V T V S IN GND 2A1
TH801 120
GATE SW 0.4 0 0
:RN-CP
C827
100p
CH:CHIP C828
100p
CH:CHIP
RGBSYNC (P2)
R857
100
:CHIP
3.3V
R855
2.2k
:CHIP
5V
3.3
0.4
IC804
Q810
TC74VHC123AF
DTC114EKA V CLP OUT
SW 0
C837
0.1
1A VCC
25V
4.9
B:CHIP
1B 1R/C
R883
0
100
VCC 1CLR 1C
:CHIP
0
SCL SCL100K 1Q 1Q
C839
(P2) 0
R894
0.001
SDA SDA100K 2.2k 2Q 2 Q
R880 B:CHIP
0
:RN-CP
10k :CHIP R884
2C 2CLR
100
0 0 3.3
R882 :CHIP
R881
10k 2R/C 2B
10k R885
0 3.2 3.3
:CHIP :CHIP
100
GND 2A
:CHIP
3.2
SW3 INPUTA SW1
(P3)
SW2 INPUTA SW2
R886
100
:CHIP
C838
0.1
25V
B:CHIP
R887
VCC 100
:CHIP
SCL
SDA
R889
0
10k R888
100
:CHIP
:CHIP
R891
R890
R892 JL873
10k 10k
# #
:CHIP :CHIP
SW3
SW2
R893 JL874
# #
7-6 7-6
D E
D808
CN801
MA157-TX
70P
PROTECT
JL823 TO BB CN303
#
A1 CLP
C845 3.3V
47
B1 CLP
16V L801
R901
4.7k :AL-CP OUH
A2 GND
:CHIP :CHIP
B2 GND
R900 C848
R903
47 A3 A3.3V
R902 100 47
:CHIP :CHIP 6.3V JL824
4.7k
:AL-CP # B3 A3.3V
:CHIP
JL825 A4 V
D809
#
MA157-TX B4 V
PROTECT
A5 GND
C846
B5 GND
47
R906
4.7k 16V JL826
A6 H
:CHIP :AL-CP #
B6 H
R905
R908
47 R907 A7 GND
100
:CHIP 4.7k :CHIP
:CHIP B7 GND
JL827
A8 B
#
D810 B8 B
MA157-TX
A9 GND
PROTECT
C847
B9 GND
R911 47
4.7k 16V JL828
A10 G
:CHIP :AL-CP #
B10 G
R910 R913
47 R912 100 A11 GND
:CHIP :CHIP
4.7k
:CHIP B11 GND
JL829
A12 R
#
B12 R
R859
R860
GND
75 75 A13
:RN-CP :RN-CP
JL830 GND
B13
#
1
AUDIO MUTE
A14
JL831
2
# SCLK
B14
JL832
3
SDAT
R861 # A15
R862
75
4 JL833
100 AUDIO CE
:RN-CP B15
:CHIP #
GND
A16
GND
B16
C829 JL834
3.3V 22 5 #
US+
A17
6.3V
:AL-CP
B17 US+
JL835
6 #
A18 US-
B18 US-
C830
0.1 JL836
A19 GND
25V
#
B:CHIP 7
B19 USB P.FLG
JL837
8
# A20 DS1+
JL838
9
# B20 DS1-
JL897
10
# A21 MS P.ENA
V-H
US VBUS B21 US VBUS
(P3) JL839
A22 GND
#
11
B22 USB P.ENA
12
A23 SUB 5V
V-V
B
B23 SUB 5V
A24 SUB 5V
(P3)
B B24 SUB 5V
A25 SUB 5V
G
SUB5V B25 SUB 5V
(P3)
A26 GND
B26 GND
R858
BNC V A27 BNC V
100
:CHIP R (P2) R914
B27 BNC V
JL841
1k
#
:CHIP
A28 GND
R915
33 B28 GND
:CHIP
BNC H A29 BNC H
V-CLP
(P2) R916
3.3V JL842 B29 BNC H
560
#
:CHIP
A30 GND
C840
JL843
22 B30 GND
#
6.3V R896
:AL-CP # A31 BNC B
R917 R918
C841
150 150 B31 BNC B
0.01
:CHIP
:CHIP
B:CHIP
A32 GND
R895 R897 JL844
B32 GND
3.3k 0 #
:RN-CP :CHIP
A33 BNC G
R919 R920
C842 R819
150 150 B33 BNC G
100p 100
:CHIP
:CHIP
CH:CHIP :CHIP
A34 GND
JL845
B34 GND
#
A35 BNC R
R921 R922
150 150 B35 BNC R
:CHIP
:CHIP
R898
JL846
#
#
QA(1/3)
(INPUT SW)
B-SS1717-QA.-P1
F
QA Board Waveforms
1 2
0.6 Vp-p 0.6 Vp-p
B/B-Y G/Y
3
0.6 Vp-p
R/R-Y
VPL-PX32
G H