ViewSonic VPW505 Service Manual page 40

SCHEMATIC DIAGRAM
P[18] PB2_CB2
R358
75
1/16W
V
P[18] Y2
R359
75
1/16W
V
P[18] PR2_CR2
R360
75
1/16W
V
P[18] PB1_CB1
R361
75
1/16W
V
P[18] Y1
R362
75
1/16W
V
P[18] PR1_CR1
V
P[1,18] YUV_SW
P[1,12,18] 15Kn_M P
DPTV_Y
DPTV_Y
R320
0
1/16W
P[1,18] YUV_SPSW
R321
N/0
1/16W
C214
10uF
16V
R229
0
1/16W
C217 PTV_Y0
47uF IC3
16V M 52055FP
R232
16 15 2K
I/P 1A GND 1
1/16W
4
GND 2
C220
10uF 10 C219
GND 3
16V 11 V 10uF
I/P 2A
V
16V
3 PTV_CB
OUT 1
5 Y C221
OUT 2
C223 8 10uF
I/P 3A
10uF 6 PTV_CR 16V
OUT 3
16V
P9V
13
Vcc
1
I/P 1B
C229 C226 R235
47uF 100uF + C228 10
16V 16V 0.01uF 1/16W
14 2 50V
I/P 2B CON 1
12
CON 2
V V
C231 9 7
I/ P 3B CON 3
10uF
16V
R363
L
H
75
1/16W
CON1 A B
CON2 A B
A B
CON3
R239 C232
1K T 100PF
1/16W 50V
V
PTV_CR
P[13] PTV_CR
PTV_CB
P[13] PTV_CB
PTV_Y0
P[13] PTV_Y0
R246
0
1/16W
C246 IC7 R248
10uF M 52055FP 2K
16V 1/16W
16 15
I/P 1A GND 1
C249 4
GND 2
47uF
16V 10 V
GND 3
11
I/P 2A
V
3
OUT 1
5
OUT 2
8
I/P 3A
6
OUT 3
C251
10uF
16V
13
Vcc
1
I/P 1B
P9V
C253
10uF
16V 14 2
I/P 2B CON 1
R254
C256 12 10
CON 2
47uF 1/16W
16V 9 7
I/ P 3B CON 3
C258
10uF
16V
+ C259
R256 100uF
1K 16V
1/16W
V V
C265
T 100PF
50V
V
ViewSonic Corporation
P9V
C222 IC2
10uF M 52055FP
16V
16 15
I/P 1A GND 1
R230
4 10
GND 2
1/16W
10
GND 3
DPTV_Y 11
I/P 2A
C227 3 V11 V
OUT 1
N/47uF
16V 5
OUT 2
8
I/P 3A
6 V12
OUT 3
C230
10uF
16V
13
Vcc
1
I/P 1B
C215 C224 R237
47uF + 100uF C225 2K
16V 16V 0.01uF 1/16W
14 2 50V
I/P 2B CON 1
C218
0.01uF 12
CON 2
50V
9 7
I/ P 3B CON 3
V V V
IC4
LA7213
R241
V
180
1/16W C237
+ 100uF
16V
V
C235 C236
0.01uF 1uF
50V
50V
R243
220K
1/16W
V
R247
180
1/16W
C247
0.01uF
50V
C260
0.01uF
50V
6-11 Confidential – Do Not Copy
PB_IN
PB_IN P[12]
PR_IN
PR_IN P[12]
Y0_IN
Y0_IN P[12]
V11 PB_IN
R236 J27 J26
0 T1285-BJST R242 R319 T1285-BJST
1/16W 6 N/0 N/0 6
1/16W 1/16W
V13 5 5
4 4
3 V12 PR_IN 3
2 2
1 R253 R240 1
N/0 N/0
1/16W 1/16W
V13 Y0_IN
R255 R244
V V
N/0 N/0
1/16W 1/16W
DPTV_PR P[13]
DPTV_Y2 P[12]
B1 P[12]
DPTV_PB P[13]
R405 R407
N/0 N/0
1/16W 1/16W
V V
P5V_COLOR
IC6
LA7213
V
C241
+ 100uF
16V
V
H SYNC_SP P[1]
H SYNC_M P P [ 1 ]
C248 R250
2. 2 uF 220K
50V 1/16W V
DPTV_Y_S P[14]
DPTV_CB_S P[14]
DPTV_CR_S P[14]
Title
VIDEO SYSTEM - YUV SWITCH M52055P & HS SEP. LA7213
Size Document Number
B QPWB11400-1G---
Date: Friday, February 21, 2003 Sheet
VER1.0
Rev
1.4
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