Acer AT1921 Service Manual page 51

A
VGA_PLAG
R77
10k/6
4 SDA0 SDA0 R79 0R/6/NC VGASDA 100R/6
EZJZ0V800AA/NC
4
VGA_PLAG
R85
10k/6
4 SCL0 SCL0 R87 0R/6/NC VGASCL 100R/6
EZJZ0V800AA/NC
3
R314
0R/6/NC U24
1
B0
2
B2
RXD
3
4 RXD BN
VGASCL_IN
4
B3
R316
5
B1
0R/6
6
INH
7
VEE
8
GND
CD4052
SOP16
S0 S1 STATUS OUTPUT
0 0 B3,A3 SDA/SCL
1 1 B3,A3 TXD/RXD
HS YNC# R105 510R/6 R296 100R/6 VGAHSYNC#
2
D28 R107
EZJZ0V800AA/NC
2k/6
VSY NC# R126 510R/6 R297 100R/6 VGAVSYNC#
D29 R135
EZJZ0V800AA/NC
2k/6
VGA_PLAG
R144
10k/6/NC
CB70
U17
0.1uF/6
1
1 8
NC VCC
DDC_WP_DE
2 7
DDC_WP_DE
NC WP
3 6 VGASCL
NC SCL
VGASDA
4 5
GND SDA
24C02
H : WP ENAB LE
L : WP DISA BLE
A
B
VGA IN
R80 P2
D-SUB15
DCN15VGA-15P
D23 RE D_GND
6
RED
11 1
GRN_GND
7
VGASDA_IN 12 2 GREEN VGA_PLUGPWR
BLU_GND
8
HS YNC# BLUE
13 3
VGA_PLUGPWR
9
VSY NC#
14 4
10
VGASCL_IN
15 5
R88
VCC
D25 VGA_PLAG
11/28 add
D26
BAT54C
VGA_PLAG VGA_PLUGPWR
C76
0.1uF/6/NC
5VSB
C258
0.1uF/6/NC
16
VCC
15
A2
14
A1
TXD
13
TXD 4
AN
R315 0R/6/NC
12
A0
R317 0R/6 VGASDA_IN
11
A3
10
S0
R377 0R/6
9
S1 ERO0_UP3_0 4
R302 10k/6
SB33B
VGAHSYNC# 4
VGAVSYNC# 4
VGASCL R137
VGASDA R139
R292 330R/6F/NC R293 200/6F/NC
U23
4,6
+5V_IN
3
VIN
C198 + C199
1
ADJ/GND
10uF/25V/NC AP1117ELA/TO223/NC
0.1uF/6/NC
B
C
RED L15
D22
EZJZ0V800AA/NC
RE D_GND
GREEN
L16
D24
EZJZ0V800AA/NC
GRN_GND
BLUE
L17
D27
EZJZ0V800AA/NC
BLU_GND
+3.3V
+3.3V
C80
1uF/6/NC
RST
R95 R97 R96
82K/6/NC
PW_KEY R106 0R/6/NC 44
4,14 PW_KEY P5.0/PWM0
R108 0R/6/NC
45
P5.1/PWM1
R109 0R/6/NC
46
P5.2/PWM2
R111 0R/6/NC
47
P5.3/PWM3
R113 0R/6/NC
48
P5.4/PWM4
R115 0R/6/NC 1
P5.5/PWM5
R117 0R/6/NC
2
DSCL2/P5.6
R119 0R/6/NC
3
DSDA2/P5.7
VSY NC# R122 0R/6/NC
9
P3.2/INT0
I R R124 0R/6/NC 10
4,14 IR P3.3/INT1
GPIO5 R127 0R/6/NC
11
4 GPIO5 P3.4/T0
GPIO6 R129 0R/6/NC
12
4 GPIO6 P3.5/T1
R131 0R/6/NC
13
P7.6/CLKO2
R133 0R/6/NC
14
P7.7
0R/6/NC
8
ASDA/P3.1/TXD
0R/6/NC
5
ASCL/P3.0/RXD
U16
RTD2120L/NC
+3.3V
C81
L47 10pF/6/NC
2
VOUT
C200 Bead_121_4A/8/NC
+ C201
0.1uF/6/NC
10uF/25V/NC
C
D
C69
0.01uF/6
FB/6 R78 68R/6 RP
1 2
R81 C70
75R/6F 5pF/6
C71
0.01uF/6
R82 100R/6 R N
1 2
C72
4.7nF/6
R83 0R/6 VGASOG
1 2
GP
FB/6 R84 68R/6 1 2
C73
R86 0.01uF/6
75R/6F C74
5pF/6
C75
0.01uF/6
R89 100R/6 GN
1 2
C77
0.01uF/6
FB/6 R90 68R/6 BP
1 2
R91
75R/6F C78
5pF/6
C79
0.01uF/6
R92 100R/6 BN
1 2
+3.3V
R93
10k/6/NC
+3.3V
HS YNC#
31
NC
32
NC
30
NC
29
NC
R118 0R/6/NC
28
VSYNC
R120 0R/6/NC
43
NC
R121 0R/6/NC
42
NC
RTD2120L R123 0R/6/NC
27
P6.7
26 R125 0R/6/NC
P6.6/CLKO1
R128 0R/6/NC
25
P6.5
R130 0R/6/NC
24
P6.4
R132 0R/6/NC
23
P6.3/ADC3
R134 0R/6/NC
22
P6.2/ADC2
21 R136 0R/6/NC
P6.1/ADC1
R138 0R/6/NC
20
P6.0/ADC0
Y2
24MHz/NC
1 2
R145
6.8K/6/NC
Ω
C82
10pF/6/NC
PROJECT :E9T-PV
Title
VGA IN & AUDIO IN
Size Document Number
Custom <Doc>
Date: Tuesday, May 29, 2007
D
E
RP 4
RN 4
4
VGASOG 4
GP 4
GN 4
BP 4
3
BN 4
Control_Power 2
R94
0R/6/NC
2
1
Re v
C3B
Sheet 7 o f 14
E