Ba (2/2) - Sony VPL-PX20 Service Manual

• Refer to page 9-16 for Printed Wiring Board
• Refer to page 9-19 for Waveforms
• Refer to page 9-19 for IC Block Diagrams
1
SCL
SDA
VS
HS
(1/2)
R-Y
B-Y
Y
SYNC
2
CN101
50P
TO BB CN306
JL201
R/R-Y A1
#
R/R-Y B1
JL217
GND A2
#
GND B2
JL202
G/Y A3 #
G/Y B3
GND A4
GND B4
JL203
#
B/B-Y A5
B/B-Y B5
JL204
GND A6
#
B6
H
A7
GND JL205
#
V B7
JL206
A8
GND #
RGBSYNC B8
GND A9
B9
V-CLP
3
GND A10
JL207
YC/OTHER B10 #
R OUT
VR A11
VR B11
GND A12
JL208
#
GND B12
G OUT
VG A13
VG B13
GND A14
JL209
GND B14
#
B OUT
VB A15
VB B15
GND A16
CV/OTHER B16
JL210
A17
GND
#
V-HD B17
R263
TP116
V.SYNC
JL211 47
GND A18 6
# :CHIP
V-VD B18
GND A19
GND B19
4 JL215
#
SDA A20
JL216
#
SCL B20
GND A21
B21
GND
+6V A22
+6V B22
+6V A23
+6V B23
A24
+10V
GND B24
A25
+10V
GND B25
IC255
BA09FP
9V
9V REG
JL213 #
L251
47µH
JL214 #
I O
G
C258
C259
39
47
16V
16V
:AL-CP
:AL-CP
5
IC258
PQ05SZ1U
5V
FL251 5V REG
EMI I O
C264
G
68
C263
10V
68
:AL-CP
10V
:AL-CP
A B
9V
L100
10µH
:CHIP
JL218
#
R164 R166
390 390
JL219 :CHIP :CHIP
R165
# 7
R167
TP103
V.R-Y C172 0.47 16V B:CHIP
JL220 TP104
V.B-Y C174 0.47 16V B:CHIP
#
TP105
V.Y C175 0.47 16V B:CHIP
L103
9V
8 9
10µH
:CHIP
22k :RN-CP
R-Y/R C177
C178
10
0.1
TP106 16V 25V
R188
:AL-CP B:CHIP 0.47 16V B:CHIP
2
47
Q115
:CHIP
2SC3545
0.47 16V B:CHIP
BUFF
3.7
0.47 16V B:CHIP
Y/G
3.0
R190
330
TP107 :CHIP
3
Q116
R195
47 2SC3545
:CHIP BUFF
3.7
3.0
R197
330
B-Y/B
:CHIP
TP112
Q117
R212
4 2SC3545
47
:CHIP BUFF
3.7
3.0
R214
330
:CHIP
R-Y
Y
B-Y
+5V
C256 R267
390p 4.7k
CH:CHIP :RN-CP
H.SYNC
TP115
R264
5
47
:CHIP
16 15 14 13 12 11 10
IC257
C261
MC74HC4538
0.1
P.WIDTH.ADJ
25V
B:CHIP
1 2 3 4 5 6 7
R273
4.7k
:RN-CP
C266
100p R274
CH:CHIP
:CHIP
Q110
2SC2712
CLAMP P.ADD
R284
47
:CHIP
C

BA (2/2)

BA (2/2)
C149
47
16V
:AL-CP
C150
0.1
25V
B:CHIP
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43
0 :CHIP
65
VS1
0 :CHIP 4.8
66 HS1
4.6
67 R-Y1
4.9
68 B-Y1
4.9
69
Y1
5.1
70
GND SIG
R180
71 IREF YC
IC102
2.5
72 VCC SIG CXA2101AQ
C179 RGB INTERFACE
73 SELCR IN
2.4
C182
74
SELCB IN
2.4
75
C184 SELY IN
2.4
76 SELY OUT
4.5
77 SELCB OUT
4.5
78 SELCR OUT
4.5
79
SELH OUT
80 SELV OUT
9V L105
10µH
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
:CHIP
C187 C188
47 0.1
16V 25V
:AL-CP B:CHIP
R202 47 :CHIP
R203 47 :CHIP
R204 47 :CHIP
5V
R265 C252
47 47
L104
:CHIP 16V
10µH
:AL-CP
:CHIP
R266
C253 IC254
47
0.1
:CHIP
25V C255 TC7S04F
8 7 6 5
B:CHIP C254 #
VS.INV
0.1 R285
25V 47
R268 B:CHIP :CHIP
270k
:RN-CP
0.5
9
0
C260
R269
1 2 3 4 0.1
4.7k
25V
:CHIP
B:CHIP
C262
R270
IC256 #
1.4 47
GS4981
:CHIP
SYNC.SEP.
Q130
0.8
2SA1037K
8
R271
2.2k
R272 :CHIP C265
470 0.1
:CHIP 25V
B:CHIP
47
Q129
2SC2712
HS ADD R282
270
0 0 :CHIP
0
0
R283 R281
820 470
:RN-CP :CHIP
9-18 9-18
D E
9V
L101
10µH
:CHIP
R138
0 :CHIP
R139
0 :CHIP
42 41
R142
0 :CHIP
C167
+5V
0.1
25V R168
40
BS/H
B:CHIP 47 :CHIP
3.3 B
B OUT 39
C173
2.2
0.1 R169
GS/H 38
25V 47 :CHIP
3.3 G
B:CHIP
G OUT 37
C176
2.3 R170 R171
0.1 R176 R177 R172 R178 R174
36
RS/H 470 #
25V 47 :CHIP 47 470 R173 47 470
3.3
:CHIP
B:CHIP :CHIP :CHIP # :CHIP :CHIP
35
R OUT
2.9 2.9 2.8
2.2 R
R187
GND OUT 34 2.2 2.3
47
:CHIP
HP IN 33
3.4
VBLK IN 32 Q112
R183 3.4 3.4
FMS1 R185
0 0 47 0 0 0
31
SCP IN 47
BUFF :CHIP
1.3
:CHIP
R191
30
VCC OUT
47
:CHIP
HS OUT 29
0.7 Q114
Q113
C183
VS OUT 28 FMS1
FMS1 47
0.5
R192 BUFF 6.3V
BUFF
IREF SYNC 27
47 :AL-CP
0
:CHIP
26
YG IN
2.6
YG OUT 25
R193
0
C185 47k C186
1 :RN-CP 47
10V 6.3V
:AL-CP
B:CHIP
GND
R198
47 :CHIP
C203
0.01 B:CHIP TP111
9V
IC103
TC4W53
SCP IN
SCP.SW
TP113 13
R207
47
C +VCC
:CHIP
1.3 1.3
INH CH0
0
R209
VEE CH1 47
0 :CHIP
GND A
R211
C206 47
0.47 :CHIP
16V
B:CHIP
IC251
R260
TC4W53F
100
CLAMP SW
:CHIP
CLAMP
TP114
JL212
#
4.9
0
0
R259
47
0
:CHIP
R261
47
0 0
:CHIP
0 0
IC252
0 4.2
TC7S04F
CLAMP BUFF
R277
100
:CHIP
IC259
TC7W14F
INV.
8 7 6 5
R275
1 2 3 4
47
:CHIP
D101
C111
1SS355
1000p
SPEED UP
CH:CHIP
R276
10k
:CHIP
F G
5V
C168 L102
0.1
10µH
25V :CHIP
B:CHIP
C169 C170 C171
68
0.0022 0.1
10V
R175 R179 B:CHIP 25V
:AL-CP
47 B:CHIP
#
:CHIP
2.2
R181
6.8k
:CHIP
R184 R186
0 47 15k
:CHIP :CHIP 11
12
C181
0.01
R OUT TP109
C180 B:CHIP
G OUT
TP108 10 TP110
10
16V
B OUT
:AL-CP
R OUT
G OUT
R OUT
R189 R194
R196
C207
10k 10k
47 10k
:CHIP :CHIP
6.3V :CHIP
:AL-CP
R206
R205
4.7k
4.7k
:RN-CP
:RN-CP Q118
2SA1037K
1.3
Q119
0.7
DTC144EKA SCP
0
INV
R210
47
4.2 0
:CHIP
0
SW2
CLP
5V
IC253
TC75S56F
HS.GEN. +5V
R236
R279
4.7k
47
:RN-CP
:CHIP
0.4
CLP
0
0 R278
C257 R262
47
0.1 47 2.5
:CHIP
25V :CHIP
B:CHIP
C251
R280
0.1
4.7k
25V
:RN-CP
B:CHIP
BA(2/2)
(CHROMA DECODER)
B-SS1696<08.>-BA.-P2
VPL-PX20/PX30
H