ViewSonic VE500-1, Service Manual

Page: 23 / 28

DPWBN5396T8---B
THE NEW ADD CIRCUIT FORM AD9884 PIN124 TO U5 PIN41 AD9884 POWER DOWN
R78 150-->390T 90/12/13
ADD JP3,JP4 SELECT 5V OR 3.3V_MCU 90/12/20
R34 C119,D4 NC 90/12/20
IF USE C50 IS 0 O_HM, MUST USE D4 AND C119,BUT R64 NC 90/12/20
NC
MCU_MTV230_VIEWSONIC
B
QPWB-5396T8---B
C
2 5 Thursday, March 14, 2002
Title
Size Document Number Rev
Date: Sheet of
GRNLED
X1
X2_12MHZ
REDLED
N203
N204
N201
N206
N205
N202
N540
PD
REDLED
GRNLED
PWR1
N519
PWR2
X2_12MHZ
SOG_SEL
ROM_SCL
5V
3V3_MCU
3V3_MCU
3V3_MCU
3V3_MCU
3V3_MCU
5V
5V_ROM
3V3_MCU
C41
22P
C116
0.1u
C56
100u/16V
C117
0.1u
RP9
4.7KRP
1
8 7 6 5
2 3 4
C118
0.1u
R65
1K
C122
1000P
U5
MTV230M
1 2 3 4 5 6
7
8
9
10
11
12
13
14
15
16
17
18 19 20 21 22 23 24 25 26 27 28
29
30
31
32
33
34
35
36
37
38
39
40 41 42 43 44
ROUT
XIN
OSDHS OSDVS
P4.7/VBLANK
P4.6/HBLANK
X1
X2
P4.5
P4.4
P4.3
P4.2
P4.1/VSYNC
P4.0/HSYNC
P3.0/Rxd/HSCL
P3.1/Txd/HSDA
P3.2/INT0
VDD RST VSS P3.4/T0 P3.5/T1 P6.0/ISCL P6.1/ISDA P1.0 P1.1 P1.2 P1.3
P1.4
P1.5
P1.6
P1.7
P5.0/AD0
P5.1/AD1
P5.2/AD2
P5.3/AD3
P5.4/DA0
P5.5/DA1
P5.6/DA2
P5.7/DA3
INT/P6.2
FBKG BOUT
GOUT
C123
1000P
RP12
4.7KRP
1
8 7 6 5
2 3 4
X1 12MHZ
1 2
C121
NC
C42
220P
C45
1u
C49
0.1u
R24 33
RP7
4.7KRP
1
8 7 6 5
2 3 4
R29
10K
R38 NC
RP8
4.7KRP
1
8 7 6 5
2 3 4
R30
10K
U7
MAX812
1
2 3
4
1
2 3
4
R28
330
R37 NC
Q2
MMBT3904L
1
3
2
RP11
4.7KRP
1
8 7 6 5
2 3 4
C40
0.1u
Q1
MMBT3904L
1
3
2
C98
NC
R23 33
R31
1K
R25 100
C46 22p
C43
0.1u
R66
330
C47
22p
R34
NC
D4
NC(1N4148)
R32 1M
L20
64RFIL-5232T8300A
C50
0.1UF
R35 NC
R64
0
R36 NC
C124
1u
R63
1K
RP10
4.7KRP
1
8 7 6 5
2 3 4
J2
CON6
1
2
3
4
5
6
C119
NC
L38 64RFIL-5185T8121A
L37
RFIL-5185T8121A
R78
390
L36
64RFIL-5185T8121A
U8
NC(24C16/DIP)
1
2
3
4 5
6
7
8
A0
A1
A2
VSS SDA
SCL
WP
VDD
L40
64RFIL-5185T8121A
L39
64RFIL-5185T8121A
RP13
4.7KRP
1
8 7 6 5
2 3 4
L35 RFIL-5185T8121A
C52
NC
C115
1000P
MCU_SDA1
SW3(MENU-)
OSD_G
OSD_VS
LED_GRN
ISP_SCL
PSC1
MCU_HS_IN
OSD_CLK
SOFT_START
OSD_B
OSD_HS
ASIC_SDA
ROM_SDA
SW2()
MCU_SCL1
MCU_VS_IN
ASIC_RESET_
OSD_R
PSC0
LED_RED
FBLK
ISP_SDA
PLL1_PD
ASIC_SCL
VGA_CON
BL_ON_OFF
AUDIO
PWOUT
MCU_VS_OUT
PLLH_SEL
BL_BRI
SW2()
SW3(MENU-)
LED_RED
LED_GRN
SOFT_START
9884_PD
ViewSonic Corporation
Confidential – Do Not Copy
V E 500 -1
2 0