Asus MW221C, Service Manual

Page: 23 / 61

22" LCD Color Monitor ASUS MW221C
23
KEY_R IGHT
R432 0R05 1/10W 5%
POWER
C N402
N C
2
4
6
8
10 1
3
5
7
9
R421 0R05 1/10W 5%
FB408 120OH M
1 2
AU DIO_STBY
+5V
PA9
R492
NC
AVDD _18
KEY_LEFT
R491 N C
VC C3.3
PA4
R IN 3
AVDD _33
+5V
C 407
0.1uF
D DCA_SCL 3
KEY_A
C 459
0.1uF
PB4
C457
0.1uF
GN DB 3
+5V
LED _A
C N403
C ONN
2
4
6
8
10
12
14
16 1
3
5
7
9
11
13
15
R423 4K7 1/10W 5%
C416
0.1uF
R408 1
0
K
1
/1
0
W
5
%
OUT-R-
PA3
C425
0.22uF
C 430
0
.1
u
F
PB7
PA[0..9]
C411
0.1uF
R 402
4K7 1/10W 5%
TSUMO58CWHJ-LF
28
25
26
23
27
24
22
32
33
7
31
30
41
43
42
44
51
80
128
127
81
82
83
84
85
86
91
92
93
94
95
96
97
98
99
100
79
78
77
1 1
1
9
10
12
13
8
15
16
18
19
1
7
2
9
5
2
1
0
4
8
7
37
103
1
1
2
34
35
5
6
118
1
4
1
0
7
36
73
119
120
121
123
124
117
116
115
38
39
108
3
4
5
3
7
4
4
0
5
9
7
2
8
8
1
0
1
76
75
102
109
1
2
6
1
1
4
111
110
2
0
90
89
122
2
1
1
3
56
55
57
61
64
70
67
2
1
1
0
6
1
0
5
48
49
47
45
46
50
6
8
6
9
6
3
6
2
60
65
66
71
125
5
4
5
8
R IN0P
GIN0P
SOGIN0
BIN0P
R IN0M
GIN0M
BIN0M
H SYNC 0
VSYN C0
R EXT
R EFP
R EFM
SD O
SC K
C SZ
SD I
GPIO_P24/PWM2
LVACKM
XIN
XOUT
LVA2P
LVA2M
LVA1P
LVA1M
LVA0P
LVA0M
LVB3P
LVB3M
LVBC KP
LVBCKM
LVB2P
LVB2M
LVB1P
LVB1M
LVB0P
LVB0M
LVAC KP
LVA3M
LVA3P
G
N
D
G
N
D
R X2P
R X2N
R X1P
R X1N
A
V
D
D
_
3
3
R X0P
R X0N
R XCKP
R XCKN
G
N
D
G
N
D
G
N
D
V
D
D
C
V
D
D
P
MOD E
VCTRL
V
D
D
P
D DC A_SDA/RS232_TX
D DC A_SCL/R S232_RX
D DC D_SDA
D DC D_SCL
N C
A
V
D
D
_
3
3
V
D
D
P
GPIO_P22/PWM1
GPIO_P04
GPIO_P00/SAR0
GPIO_P01/SAR1
GPIO_P02/SAR2
GPIO_P06
GPIO_P07
N C
N C
N C
I2C_MDA
I2C_MCL
R ST
GPIO_P15
GPIO_P16
V
D
D
C
V
D
D
C
V
D
D
P
V
D
D
P
G
N
D
G
N
D
G
N
D
N C
N C
BY PASS
GPIO_P25
V
D
D
C
V
D
D
P
N C
N C
A
V
D
D
_
3
3
N C
N C
GPIO_P03/SAR3
GPIO_P14/PWM0
G
N
D
N C
N C
N C
N C
N C
N C
N C
A
V
D
D
_
1
8
G
N
D
G
N
D
GPIO_P44
GPIO_P43
GPIO_P45
GPIO_P47
GPIO_P46
GPIO_P42
G
N
D
G
N
D
G
N
D
G
N
D
VDDP
VDDP
VDDP
VDDP
GPIO_P13/PWM2
V
D
D
P
A
V
D
D
_
M
E
M
P
L
L
VC C3.3
AUDIO_STBY
GIN 3
AVDD _MEMPLL_33
WP
PB9
C426
0
.1
u
F
G+ 3
KEY_LEFT
HD CP_SCL
C 421 22pF
Q401
PMBS3906 1
2
3
R424
1
0
K
1
/1
0
W
5
%
R488 100R 1/10W 5%
LED _G
VC C1.8
PA1
HD CP_SDA
PB[0..9] 5
For HDCP
R
4
9
0
1
0
K
1
/1
0
W
5
%
VSYNC 3
KEY_A
R 415
1
0
K
1
/1
0
W
5
%
VDDP
PA5
HDC P_RST 3
R486
N C
R419 0R 05 1/10W 5%
VC C3.3
H SY NC 3
LED_G
Q404
N C
FB407 120OH M
1 2
U406
NC
1
2 3
G
N
D
RST VC C
R425
1
0
K
1
/1
0
W
5
%
D DCD _SCL 3
LED_G
POWER
B+ 3
CLK- 3
OU T-L+
KEY_C
H DCP_WP
+12V 2
PB[0..9]
KEY_AUTO
R
4
8
4
1
0
K
1
/1
0
W
5
%
R479
1K 1/10W 5%
C 409
0.1uF
R418 100R 1/10W 5%
+5V
VCC3.3
C401
0.1uF
OU T-L-
PB2
C461
0.1uF
R - 3
VC C3.3
OUT-R +
KEY1
C429
0
.1
u
F
Q403
PMBS3906 1
2
3
PA[0..9] 5
R 502
20 OHM 1/10W
R481
NC
X401
14.31818MHz
1
2
Re set
Circuit
PB1
D DCD _SDA 3
LED_A
AUD IO_MU TE
FB403
300OH M
1 2
R493
100R 1/10W 5%
R 407
N C
GN DR 3
D DCA_SDA 3
KEY_C
PB3
R474
3K9 1/10W
D ET_VGA 3
CN 404 CON N
2
4
6
8
10
12
14 1
3
5
7
9
11
13
B- 3
PB8
OUT-L+
+ C464
22uF/50V
AVDD _33
C414
0.1uF
R 501
20 OHM 1/10W
AVD D_18
C 460
0.1uF
C417
0.22uF
LED_A
G- 3
on_BACKLIGHT 2
AVD D_MEMPLL_33
OUT-R+
R417
1
0
K
1
/1
0
W
5
%
PA7
C455
0.1uF
R430
NC
KEY_MEN U
FB405
300OHM
1 2
C463
0.22uF
OUT-R -
R 475
3K9 1/10W
+12V
KEY _C
R496
10K 1/10W 5%
R427 100R 1/10W 5%
U 402
PM25LV010A
1
2
3
4
5
6
7
8
C E#
SDO
WP#
VSS
SD I
SCK
H OLD#
VDD
KEY_LEFT
R 476 1K 1/10W 5%
VC C3.3
R420 100R 1/10W 5%
R 409
120R 1/10W
R 426
10K 1/10W 5%
C 420
0.1uF
PA2
R403
390R 1/10W 1%
FB404
0R 05 1/8W
C431
1uF/16V
FB401
0R05 1/8W
R 429 100R 1/10W 5%
R 497
N C
VCC3.3
VDDC
KEY_MEN U
VDD P
D 402
R LZ36B
1
2
VCTR L 2
PB5
R411 100R 1/10W 5%
AU DIO_MUTE
R413
1
0
K
1
/1
0
W
5
%
DD C_WP 3
KEY2
Volume
U 403
24LC16B/SNG
1
2
3
4
5
6
7
8
A0
A1
A2
GND SDA
SCL
WP
VCC
R
4
8
9
1
0
K
1
/1
0
W
5
%
C 405
0.1uF
R 428 100R 1/10W 5%
R414
120R 1/10W
KEY_B
H DC P_SD A
PB0
R495
100R 1/10W 5%
KEY_AUTO
PA8
FB402
300OHM
1 2
KEY _RIGH T
R412
1K 1/10W 5%
C 458
0.1uF
CLK+ 3
+5V 2,3
AVD D_33
+
C 403
4.7uF/50V
R 483
N C
D401
R
L
Z
3
6
B
1
2
R477 1K 1/10W 5%
(Source)
KEY_R IGHT
C 404
0.1uF
SOG 3
adj_BACKLIGHT 2
OUT-L-
POWER
Volume
GN DG 3
VCC3.3
H DCP_WP
R 500 0R05 1/10W 5%
BIN 3
KEY_AUTO
Q405
PMBS3906
LED_G
R422 4K7 1/10W 5%
R 410 N C
C402
0.1uF
R 416
1
0
K
1
/1
0
W
5
%
VCC1.8
C 428
0
.1
u
F
WP
C413
0.1uF
C427
0
.1
u
F
VDD P
POWER
C 410
0.1uF
C462
NC
VCC 3.3
H DC P_SC L
PA6
R494
100R 1/10W 5%
KEY_B
C422
0.1uF
R 405 22K 1/10W
C406
0.1uF
VC C3.3
R 485
10K 1/10W 5%
KEY1
+ C418
10uF/50V
C419
0.1uF
+
C408
10uF/50V
U407
C AT24C08W
1
2
3
4
5
6
7
8
NC
NC
A2
VSS
SD A
SCL
WP
VCC
C415
0.1uF
LED _A KEY _MENU
R487
10K 1/10W 5% +5V
KEY2
PA0
R433
NC
R499
NC
D ET_DVI 3
KEY_A
R
4
0
6
1
0
K
1
/1
0
W
5
%
R482
NC
R 431
4K7 1/10W 5%
VD DC
R478
1K 1/10W 5%
on_PAN EL 2
Q402
PMBS3904
Q407
PMBS3904
C412
0.1uF
VC C3.3
+5V
VDDP
R404
10K 1/10W 5%
R480 NC
VCC 3.3
PB6
C 423 22pF
VC C1.8 2
VC C3.3 2
LVDS
715G2186 3 1
04. SCALER
C ustom
4 5 Tuesday , August 14, 2007
Title
Size D ocument Number Rev
D ate: Sheet of
C456
0.1uF
R + 3