Acer G225HQ Service Manual page 73

A
4
3
2
+3.3V
NVRAM
C63
R53 R54
U4
0 .1 U 4.7K J 4.7K J
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
1 4 5
GND SDA
A T 2 4 C 1 6 N-10SI-1.8
A
B
A D C _ K E Y3
A D C _ K E Y2
A D C _ K E Y1
P O W E R _ K E Y
L12
M512_XOUT
Z120
R T D _ SCLK
R T D _ S D 3 /SDI
S C L _ T O UC H
S D A _ T O UC H
P A NE L _ ON
B L _ ON
V O L _ ON
W P _ C04
SCL
S D A
+3.3V
B
C
+3.3V
C65
1 0 P J
R57
Y 1
2 4 MHZ
U 1 0
25
P6.5
26
P6.6/CLKO1
27
P6.7
28
VSYNC
29
NC HSDA1/TXD/P3.1
30
NC
31 R T D 2 1 20L-LF
NC
32
NC HSCL1/RXD/P3.0
33
P1.7
34
P1.6
35
P1.5
36
P1.4
C62
0 . 1 U K
+3.3V
R215 4.7K J
+5V
R214 4.7K J
C
D
C64
+3.3V
1 0 P J
NC 1M
R55
4.7K J
W P _ C04
R56
4.7K J
C ab le _ D e te c t_D
12
SCL
P3.5/T1
11
SDA
P3.4/T0
10
P3.3/INT1
9
P3.2/INT0
8
S D A _A
7
NC
6
NC
5
S C L _A
4
RST
3
S D A _ D
DA7/P5.7
2
S C L _ D
DA6/P5.6
1
H D C P _ C T R L
DA5/P5.5
R301
B/V Series Without Audio Function
+3 .3V
R213 R30 1 Open
4.7K J
PWM1 C101 change to 0 ohm(0603)
V O L _ ADJ
R28 4.7K J
X Series don't have Audio Function
C101
1 U K
R213 R301
R302
Qisda Corporation
+3.3V
4.7K J Pro j ec t C o de
PWM0
B R T _ ADJ
Title
R33 4.7K J
C40
MCU 2120L
1 U K
S iz e
PC B P/N
< S i z e >
4H.0K401.S01
M o n d a y , F e b r u a r y 0 9 , 2 0 0 9
D a te:
Prep a red By
Lo uis Yang
D
E
4
3
+3.3V
C61
+
1 0 U 2 5 C
R101
10K J
2
C101 R28 Open
M o del Na me O E M / O D M Mo del Na me
OEM
1
PC B Rev. D o c umen t Number Rev.
0
S 0 1
< D o c >
S h eet 4 o f 6
R e v iew ed By A p p ro ved By
Blight Hsu A llen PC Lee
E