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Acer B173 Service Manual page 44

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A
2007.11.22 pin define modify
MCU_VCC
MCU_VCC
Reset circuit
U5
C6
3
R7
VCC
RST
1U/6/NC
2
RST
4
1
GND
1K/6/NC
R16
NC/TCM810S
82K/6/NC
MCU_VCC
U4
8
VCC
A0
EEPROM_WP
7
WP
A1
IICSCL
6
SCL
A2
IICSDA
5
SDA
GND
AT24C16N-10SC-2.7
3
DSUB_DET
DVI_DET
R164
Hot_Plug
R168
VBRI
R167
VOLUME
R54
DDC2_SCL
2
R56
DDC2_SDA
STBY
R162
DDC_SDA
R163
DDC_SCL
1
A
B
R12
R13
10K/6
10K/6
LED_G
R14
4.7K/6
LED_R
R17
4.7K/6
1
C16
0.1u/6
1
2
3
4
MCU_VCC
RST
44
P5.0/PWM0
45
P5.1/PWM1
100/6
46
P5.2/PWM2
100/6
47
P5.3/PWM3
48
P5.4/PWM4
100/6
1
P5.5/PWM5
100/6
2
DSCL2/P5.6
100/6
3
DSDA2/P5.7
9
P3.2/INT0
EEPROM_WP
10
P3.3/INT1
IICSCL
R59
100/6
11
P3.4/T0
IICSDA
R161
100/6
12
P3.5/T1
LED_G
13
P7.6/CLKO2
LED_R
14
P7.7
100/6
8
ASDA/P3.1/TXD
100/6
5
ASCL/P3.0/RXD
U3
RTD2120L
C14
10pF/6
B
C
3DVCC
3
C
Q4
MMBT3906
1
MMBT3906
1
2
B
E
Q5
MMBT3906
HOTKEY_M
KEY1
KEY2
PWR
KEY1
KEY2
KEY1
KEY2
Junction from
A change to B
MCU_VCC
R32
R33
R35
R36
MCU_VCC
31
NC
32
NC
30
NC
29
NC
28
VSYNC
43
NC
42
NC
RTD2120L
27
P6.7
26
P6.6/CLKO1
R190
25
P6.5
24
P6.4
23
P6.3/ADC3
R173
22
P6.2/ADC2
21
P6.1/ADC1
20
P6.0/ADC0
Y1
24MHz
R165
NC/1M/6
C15
10pF/6
C
D
CN3
MENU_O
10
10
SEL_O
9
9
PWR_O
8
8
UP_O
7
7
DOWN_O
6
6
RIGHT_O
5
5
LEFT_O
4
4
R1
3
3
G1
2
2
1
1
7101-E10N
CN2
R19
1K/6
MENU_O
10
R20
1K/6
SEL_O
9
R21
1K/6
PWR_O
8
R22
4.7K/6
UP_O
D37
7
R23
4.7K/6
DOWN_O
NC/DAN217K
6
R24
10K/6
RIGHT_O
5
R25
10K/6
LEFT_O
HOTKEY_M
3
4
R26
200/6
R1
3
R27
300/6
G1
2
1
2005/09/30
4501-10-10P-R
TO BUTTON BOARD
PANEL_PW12
R37
100/6
RTD_SD3/SDI
R38
100/6
RTD_SCLK
VRMT
(PWR_SEL)
R58
0/6
XI
NC/1K/6
HOTKEY_M
PWR
KEY3
1K/6
DDC_WP
C17
DDC_WP
KEY2
0.1U/6
KEY1
D
E
*Co-lay CN3/CN2 note:
R24
R25
CN3
NC
NC
CN2
1K
1K
4
5DVCC
D29
D30
D31
DAN217K
DAN217K
DAN217K
KEY1
KEY2
PWR
3
3
3
3
5DVCC
R28
1K/6
2
KEY3
R29
2K/6
1
E

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