Acer V203W Service Manual page 43

DVDD
53
C402
0.1uF 16V
CVDD18 ADC_VAA
+1.8V
FB402
26
2 1 52 115 119
NC
C403 C404 C426
0.1uF 16V NC
0.1uF 16V
D401 BAV70
+5V VGA_VDD MCU_VDD
1 Q401
PMBS3904
3
VGA_5V
2
R402 C406 change type E-C to 0603 11/23/07
1K 1/16W 5% C406
1uF 16V
R403
3K OHM 1/16W
U402
AZ431AN-AE1
R404 R404 change type 0402 5%-->0603 1%
10K 1/10W 1% 10/12/07
R415
5 LED_A
R416
5 LED_G
Add AZ431 5V-->3.3V
5 BL_EN
MCU_VDD +5V
R410 R411 R408
R407
10K 1/16W 5%
R412
1K 1/16W 5%
5 BL_DIM
R446
1K 1/16W 5%
5 MUTE
R417 10K 1/16W 5%
5 PANEL_ID
R418 0R05 1/16W
5 VOLUME
5 PWR_KEY
5 KEY 1
C411 C412
0.1uF 16V
5 KEY 0
NC
To made the volume control smoothly
R419 1M 1/16W 5%
X401
change to 093G-2251B-J 12MHz
for crystal temp over
spec 10/23/07
C413
47pF
REFCLKI R422 100R 1/16W 5%
NC
NC
+5V
1
2 TX 1
3 RX 2
4 3
NC
NC
For Debug Use
NO. PARTS NONE OD OD
1 U401 NT68665 NT68670
2 R444 0R NC
3 R445 NC 0R
4 C426 NC 0.1u
5 R422 100R NC
6 R447 0R NC
7 R448 NC 0R
8 C427 NC 0.1u
C405
0.1uF 16V
MCU_VDD
R445
NC
C401
0.1uF 16V
4K7 1/16W 5% 103
PC7
4K7 1/16W 5% 104
PD0
105
PD1
106
PD2
HSO 107
PD3
VSO 108
PD4
109
NC/(HSY NCI)
110
GPO1
111
AD0/GPO2
112
AD1/GPO3
VSO 113
INT_VSO/GPO4
CVDD18
HSO 114
INT_HSO/GPO5
115
CVDD
116
GPO6
117
PWMA/GPO7
CVDD18 118
PWMB/GPO8
119
NC/(VSY NCI)
120
PC0*
121
PC1*
122
PC3/PWM0
123
PC4/PWM1
124
PC5
125
PB1/ADC1
126
PB0/ADC0
127
OSCI
128
OSCO
C414 MCU_VDD
47pF R420
100R 1/16W 5%
C415 +3.3V
0.1uF 16V
2 BI1
2 BI1-
2 SOGI
2 GI1
2 GI1-
2 RI1
2 RI1-
SCL
SDA
DVDD
R444
U401
NT68625HMFG
ADC_VAA
43
T0M 3
T0P 3
T1M 3
T1P 3
T2M 3
T2P 3
TCLK1M 3
TCLK1P 3
T3M 3
T3P 3
T4M 3
T4P 3
T5M 3
T5P 3
T6M 3
T6P 3
TCLK2M 3
TCLK2P 3
T7M 3
T7P 3
PANEL_ON 3
WP
64
CGND/DGND
63
RSGA1M U403
62 1 8
RSGA1P/VCKI A0 VCC
2 7
A1 WP
61 3 6
RSCLKAM/V7 A2 SCL
4 5
GND SDA
60
RSCLKAP/V6
NC
59
RSBA3M/V5
58
RSBA3P/V4
57
RSBA2M/V3
56
RSBA2P/V2
DVDD
55
RSBA1M/V1
DVDD
54
RSBA1P/V0
CVDD18
53
DVDD
R448
52
CVDD
NC
51 IRQn
IRQn
50 R401 NC SCL
SCL/P34
49 R413 NC SDA C427
SDA/P35
NC
48 RSTn
RSTn/PD5
47 R449 NC R414 NC
PB4*/DDC_SCL0
46 R450 NC
PB5*/DDC_SDA0
DPLL
45
PLL_VDD
44 REFCLKI C408 C409
TCLK
0.1uF 16V
43
PLL_GND
42
TOUTP/VSY NCI1 VSI 2
41 NC(C1206)
HSY NCI1 HSI 2
40
PA7*/PWM9*
39
PA6*/PWM8*
R421
3.9K OHM 1% 1/16W
VGA_DET 2
R423
VGA_SCL 2
3.9K OHM 1% 1/16W
VGA_SDA 2
R447 0R05 1/16W IRQn
RX
Detect 5V-->4V Reset
TX
5V_DETECT
MCU_VDD
Cancel Eeprom(24C16), because the data can
input Scaler.11/23/07
R405 R406
NC NC
WP
SCL
SDA
C407
NC
FB401
NC
+1.8V
2 1
+ C410
100uF/25V
+5V
5V_DETECT
C416
100pF