Service manual
17" LCD Color Monitor AOC 177S
19
LED_A
AUDIO_STBY
AUDIO_MUTE
CLK+3
PA10
FB401
600 OHM
PA18
R479 1K 1/16W
VCC1.8
+5V
POWER
PB22
R409
75 1/16W
VDDC
PA19
C416
0.1uF
R421 0 1/ 16W
DDCA_SDA3
R485
10K 1/ 16W
DDCD_SCL3
CLK-3
R487
10K 1/16W
D401
RLZ36B
1 2
FB408
600 OHM
PA[8..13]
AUDIO_STBY
PA4
R478 1K 1/16W
VSY NC3
OUT-L+
PA13
R405
22K 1/ 16W
KEY 1
Volume
PA6
PA5
PB10
DDCD_SDA3
VCC3.3
VCC3.32
KEY_LEFT
PA3
Q404
PMBS3904
C429
0.1uF
KEY _RI GHT
R414
240 1/16W
PA15
PB13
R474
3.9K 1/ 16W
+5V 2,3
C409
0.1uF
R481
NC
KEY1
PB21
C431
1uF/25V
AVDD
R490
10K 1/16W
R482
NC
PA[8..13] 5
OUT-R-
KEY _B
WP
VCC3.32
DET_VGA 3
POWER
KEY_C
C423 22pF
R-3
R417 20K 1/16W
R432 10K 1/16W
GPO[0.. 4] 5
B+3
POWER
FB405
600 OHM
R425
10K 1/16W
FB407
600 OHM
D402
RLZ36B
1 2
Q402
PMBS3904
PA[0..7] 5
OUT-R-
KEY _AUTO
C407
0.1uF
C421 22pF
GNDB3
+12V
OSP 5
KEY _AUTO
U406
ASM810MEURF-T
1
23
GND
RSTVCC
KEY A
OSP
FB406
600 OHM
FB404
600 OHM
SOG3
C616
NC
R484
10K 1/16W
OUT-L-
R419 0 1/16W
GPO3
PB8
R475
3.9K 1/ 16W
WP
R430
1K 1/16W
715G1558.DSN
B
SCALER
C
56Saturday , Nov ember 12, 2005
Tit le
Size Document Number Rev
Date: Sheet
of
KEY _MENU
R408
10K 1/16W
OUT-R+
LED_A
PB[12..23]
C417
0.1uF
C413
0.1uF
R423 4.7K 1/ 16W
PA[14..19] 5
VCC3.3
LED_G
PB6
VCC3.3
X4 01
14.318MHz
R489
10K 1/16W
KEY2
C411
0.1uF
VCC3.3
PB2
GPO[0.. 4]
R483
NC
PA[14..19]
C419
0.1uF
R429 100 1/16W
+5V
B-3
HSYNC3
P[0..7]
C430
0.1uF
C405
0.1uF
R488 NC
PB9
GPO4
R+3
VCC3.3
PB7
PB16
GPO0
R406
10K 1/16W
G-3
KEY_MENU
PB1
CN403
CONN
2
4
6
8
10
12
14
16
1
3
5
7
9
11
13
15
R486
NC
C404
0.1uF
R411 100 1/16W
KEY _A
C426
0.1uF
R404
10K 1/16W NC
VCC3.32
PB[12..23] 5
on_PANEL 2
VCC3.3
LED_A
GPO2
VCC3.3
PB12
U401
TSUM57AK/56AK
59
56
57
54
58
55
53
63
64
51
62
61
70
72
71
73
79
21
108
32
33
109
110
111
112
113
114
118
119
120
121
122
123
124
125
126
127
107
106
105
41
47
39
40
42
43
44
45
46
48
49
38
96
116
67
12
104
102
11
14
68
65
66
36
37
29
50
97
69
78
20
22
23
24
27
28
30
31
35
76
77
19
100
101
98
99
93
94
91
92
89
90
9
10
15
16
17
18
2
3
5
6
7
8
128
1
80
81
88
87
86
85
84
83
82
25
26
75
74
52
34
4
95
103
115
117
60
13
RIN0P
GIN 0P
SOGIN 0
BIN 0P
RIN0N
GIN 0N
BIN 0N
HSYNC0
VSY NC 0
REXT
REFP
REFM
SDO
SCK
SCZ
SDI
GPIO_P27/PWM1
PWM1/GPIO_P25
NC/LVACKM/NC
XI N
XO U T
RA1P/LVA2P/RA2
RA1N/LVA2M/RA3
RA2P/LVA1P/RA4
RA2N/LVA1M/RA5
RA3P/LVA0P/RA6
RA3N/LVA0M/RA7
CLKAP/ LVB3P/ LHSY NC
CLKAN /LVB3M/LVSY N C
CLKBP/ LVBCKP/LCK_OD D
CLKBN/LVBCKM/LDE
NC/LVB2P/NC
NC/LVB2M/NC
BB1P/LVB1P/BB2
BB1N/ LVB1M/BB3
BB2P/LVB0P/BB4
BB2N/ LVB0M/BB5
NC/LVACKP/ NC
GA3N/LVA3M/GA7
GA3P/LVA3P/GA6
GND
GND
RX2P
RX2N
RX1P
RX1N
AVDD_DVI
RX0P
RX0N
RXCKP
RXCKN
GND
GND
GND
VDDP
VDDC
MOD E[ 1]
MOD E[ 0]
VCTRL
VDDP
VDD_OTP
DDCA_SDA
DDCA_SCL
DDCD_SDA
DDCD_SCL
PWM0/GPIO_P26
AVDD_DVI
VDDC
GPIO_P15
PWM2/GPIO_P24
GPIO_P16
GPIO_P17/SAR 0
GPIO_P00/SAR 1
GPIO_P01/SAR 2
GPIO_P06
GPIO_P07
GPIO_P13
GPIO_P14
GPIO_P16
DDCROM_SDA
DDCROM_SCL
RST
GA2P/NC /GA4
GA2N/N C/GA5
GA1P/NC /GA2
GA1N/N C/GA3
BA3P/N C/BA6
BA3N/NC/BA7
BA2P/N C/BA4
BA2N/NC/BA5
BA1P/N C/BA2
BA1N/NC/BA3
RB1P/NC/RB2
RB1N/NC/RB3
RB2P/NC/RB4
RB2N/NC/RB5
RB3P/NC/RB6
RB3N/NC/RB7
GB1P/NC /GB2
GB1N/N C/GB3
GB2P/NC /GB4
GB2N/N C/GB5
GB3P/NC /GB6
GB3N/N C/GB7
BB3P/N C/BB6
BB3N/NC/BB7
ESP
OSP
GPO0
GPO1
GPO2
GPO3
GPO4
GPO5
GPO6
GPIO_P02/SAR 3
GPIO_P03
GPIO_P22
GPIO_P23
AVDD_PLL
AVDD_MPLL
AVDD_MPLL
VDDP
VDDP
VDDP
VDDC
AVDD _ADC
GND
GND
R410 NC
KEY_A
R476 1K 1/16W
U403
AT24C16N-10SC-2. 7
1
2
3
45
6
7
8
A0
A1
A2
GNDSDA
SCL
WP
VCC
AUDIO_MUTE
adj_BACKLIGH T 2
R418 100 1/16W
CN404
CONN
2
4
6
8
10
12
14
1
3
5
7
9
11
13
VCC3.3
PA14
PA7
DET_DVI 3
OUT-L-
KEY _C
PB0
R413
10K 1/16W
C425
0.1uF
DDC_WP 3
OUT-L+
R420 100 1/16W
C410
0.1uF
on_PANEL_12V 2
R422 4.7K 1/ 16W
VDDP
PB4
R431 N C
R403 390 1%
DDCA_SCL3
VCC3.3
VCC3.3
PA9
PB17
PB[0..5] 5
Volume
R427 100 1/16W
VCC3.32
C427
0.1uF
C406
0.1uF
+5V 2, 3
GIN3
+5V
PB14
Q401
PMBS3906
AVDD
C428
0.1uF
KEY 2
PB[6..11] 5
on_BACKLIGHT 2
PB23
+12V 2
GNDR3
PB18
ESP 5
OUT-R+
FB402
600 OHM
VCC1.82
KEY_LEFT
R415
10K 1/16W
R424
10K 1/16W
+
C408
10uF/16V
PA1
PB19
VPLL
KEY _RIGHT
R412
10K 1/16W
Q405
NC
E
B
C
R407 NC
RIN3
VDDC
VMPLL
R416
10K 1/16W
G+3
VDDP
C401
0.1uF
C422
0.1uF
+5V
PA16
PA12
R428 100 1/16W
C420
0.1uF
R426
10K 1/16W
VCC3.3
VMPLL
+5V
VCTRL 2
AVDD
ESP
U402
SST25VF010-20-4C-SAE
1
2
3
4 5
6
7
8
CE#
SDO
WP#
VSS SDI
SCK
HOLD#
VDD
+
C418
10uF/16V NC
R477 1K 1/16W
+
C403
4.7uF/16V
KEY _B
PA17
C414
0.1uF
C415
0.1uF
Q403
PMBS3906
FB403
600 OHM
VCC3.3
PB20
PB[6..11]
VCC3.32
BIN3
PA0
PA2
GNDG3
VCC3.3
VPLL
VDVI
LED_G
C424 0. 1uF
RSDS/LVDS/TTL
VCC3.3
PA11
GPO1
PB5
R480 1. 5K 1/16W
C412
0.1uF
Option
Re s e t
Circuit
LED_G
PB15
PB3
PA8
R433 4. 7K 1/16W
VDVI
PB11
PB[0. .5]