Asus VB191T Service Manual page 29

19" LCD Color Monitor
3 RIN
3 GNDR
3 GIN
3 GNDG
3 SOG
3 BIN
3 GNDB
3
HSY NC
3 VSY NC
SDA_DB
SCL_DB
3 R+
3 R-
3 G+
3 G-
3 B+
3 B-
3 CLK+
3 CLK-
SDA_DVI
SCL_DVI
R442
AVDD
390 1/16W
VCC3.3
C424
0.1uF/16V
R443 U402
8 2
VDD SDO
NC 7 1
HOLD# CE#
C425 3 6
WP# SCK
0.22uF16V
4 5
VSS SDI
SF_WP PM25LV010A
R444
+5V
10K 1/16W
D414 Reset circuit 1
and Reset circuit
+ C426
10uF/50V
2 can be swapped.
LL4148
+5V
R445
U405
10K 1/16W
2
RESET
ZD412 3 1
VCC GND
NC
NC
Re s e t Circuit 2
Re se t Circuit 1
C428 22pF X401 XIN
R446 22R 1/16W
C429 22pF XOUT
14.3 Mhz
R447 22R 1/16W
R449
10K 1/16W
+5V
2, 3 +5V 2 +12V
R485
1K 1/16W
R486 10K 1/16W
R484 4K7 1/16W OUT-L+
VOLUME Q405
C450
PMBS3904
1uF 10V
VDVI VMPLL VPLL AVDD VDDP VDDC
11
VCTRL
107 PA0
NC/LVACKP/NC
59 108 PA1
RIN0P NC/LVACKM/NC
58 109 PA2
RIN0M RA1P/LVA2P/RA2
56 110 PA3
GIN0P RA1N/LVA2M/RA3
55 111 PA4
GIN0M RA2P/LVA1P/RA4
57 112 PA5
SOGIN0 RA2N/LVA1M/RA5
54 113 PA6
BIN0P RA3P/LVA0P/RA6
53 114 PA7
BIN0M RA3N/LVA0M/RA7
63
HSY NC0
64 98
VSYNC0 NC
65 99
DDCA_SDA NC
66 100
DDCA_SCL NC
101
NC
39 105 PA8
NC GA3P/LVA3P/GA6
40 106 PA9
NC GA3N/LVA3M/GA7
42
NC
43 89
NC NC
45 90
NC NC
46 91
NC NC
48 92
NC NC
49 93
NC NC
36 94
NC NC
37
NC
9
RB1P/NC/RB2
10
RB1N/NC/RB3
15
RB2P/NC/RB4
51 16
REXT RB2N/NC/RB5
17
RB3P/NC/RB6
18
RB3N/NC/RB7
62
REFP
2
GB1P/NC/GB2
3
GB1N/NC/GB3
61 5
REFM GB2P/NC/GB4
6
GB2N/NC/GB5
7
GB3P/NC/GB6
8
GB3N/NC/GB7
70
SDO
71 118 PB0
CSZ CLKAP/LVB3P/LHSY NC
72 119 PB1
SCK CLKAN/LVB3M/LVSY NC
73 120 PB2
SDI CLKBP/LVBCKP/LCK_ODD
121 PB3
CLKBN/LVBCKM/LDE
122 PB4
NC/LVB2P/NC
123 PB5
NC/LVB2M/NC
124 PB6
BB1P/LVB1P/BB2
125 PB7
BB1N/LVB1M/BB3
126 PB8
BB2P/LVB0P/BB4
127 PB9
BB2N/LVB0M/BB5
128
BB3P/NC/BB6
1
BB3N/NC/BB7
80
NC
81
NC
19 88
RST NC
87
NC
86
NC
85
NC
84
NC
83
NC
82
NC
74 R456
GPIO_P23
35
GPIO_P16/PWM2
69
GPIO_P15/PWM0
78
PWM2/GPIO_P24
79 R464
GPIO_P27/PWM1
75
GPIO_P22
32
XIN
20
GPIO_P12
21
PWM1/GPIO_P25
33 22
XOUT RSTN
23
GPIO_P00/SAR1
24 R461
GPIO_P01/SAR2
25 R462
GPIO_P02/SAR3
26
GPIO_P03
27 R460
GPIO_P06
28
GPIO_P07
29
PWM0/GPIO_P26
30
GPIO_P13
31 R468
GPIO_P14
102 77
MODE[0] GPIO_P10/I2C_MCL
104 76
MODE[1] GPIO_P11/I2C_MDA
R451 RSDS/LVDS/TTL
TSUM16AWK-LF
10K 1/16W
R472
R474
R476
+12V
CN403 SCL_DVI
1K 1/16W
R518
2 1
4 3 AUDIO_STBY
6 5 AUDIO_MUTE
8 7 R516
10 9 OUT-R+
1K 1/16W
CONN
SDA_DVI
VCC3.3 VDDP
FB407
2 VCC3.3
600 OHM
VCC3.3
FB408
2 VCC3.3
600 OHM
PA[0..9]
PA[0..9] 5
VCC3.3 FB409
2 VCC3.3
600 OHM
+12V
R478
R483
PB[0..9] 3.9KΩ 1/16W 3.9KΩ 1/16W
PB[0..9] 5
+5V ZD413 R480
MM3Z5V6B 20KΩ 1/16W
R719 AUDIO_STBY
R479 R482
NC
Q411
2N3904S-RTK/PS
10K 1/16W 10KΩ 1/16W
VCC3.3
+5V
R454 R514
NC NC
22K 1/16W Q402
PMBS3904
HDCP_RST 3
Adj_BL2 2
R457 C446
SF_WP 10K 1/16W 0.1uF/16V
4K7 1/16W
on_BACKLIGHT 2
adj_BACKLIGHT 2
INPUT_DET 3
100R 1/16W KEY 1
100R 1/16W KEY 2
100R 1/16W POWER
on_PANEL 2
VOLUME
4K7 1/16W
VCC3.3
C448
0.22uF
U406
8 1
VCC A0
100R 1/16W 7 2
WP A1
100R 1/16W 6 3
SCL A2
100R 1/16W 5 4
SDA GND
M24C16
R512 NC
I2C_MCL 2
R511 NC
I2C_MDA 2
+5V
R492 Q406
NC
NC
R491 R494 SCL_DB
DDCD_SCL 3
NC R493 NC NC
+5V
R496
Q407
NC NC
R495 R498 SDA_DB
DDCD_SDA 3
NC R497 NC NC
29
VCC3.3
The Current of
VDDP is arround
2 VCC3.3
43.4
mA.(Digital)
The Current of
C430 C431 C432 C433 C434
VDDP is arround
0.047uF 0.047uF 33pF 220pF 220pF
35.9 mA.(Analog)
VDVI VCC1.8
The Current of VDVI is
arround 29.8
2 VCC1.8
mA.(Analog)
The Current of VDVI is
arround 49.0
mA.(Digital)
C436 C437
0.1uF/16V 0.1uF/16V
VMPLL VPLL The Current of
VMPLL is arround
19.3 mA.
C438
The Current of
0.1uF/16V
VPLL is arround
28.3 mA.
C439 C440
0.1uF/16V 0.1uF/16V
OUT-L+
LED_G
POWER
C451 KEY 2
1000pF
KEY 3
R481
20KΩ 1/16W
AUDIO_MUTE
Q412
2N3904S-RTK/PS
Pull-High
D_Sub
Only
20070308
DVI
Only
DDC_WP 3
Both
connected
Both Not
connected
+5V
+5V
R458
10K 1/16W
R465 R466
R459 20K 1/16W 1K 1/16W 240Ω 1/16W
C447 0.1uF/16V
Q403
PMBS3906
R467
680R 1/16W
+5V
R500 Q408
2N7002E
4K7 1/16W
R499 R502
DDCA_SCL 3
47R 1/16W R501 NC 47R 1/16W
+5V
R504
Q409
4K7 1/16W 2N7002E
R503 R506 Title
DDCA_SDA 3
47R 1/16W R505 NC 47R 1/16W
Size Document Number
C
Date: Saturday , April 14, 2007
ASUS VB191T&S
AVDD
FB406 The Current of
AVDD is arround
68.1 mA.(Analog)
600 OHM
C435
The Current of
0.047uF
AVDD is arround
18.1 mA.(Digital
)
VDDC
FB405
1 2
0 ohm
+
C441
10uF/50V
C442 C443 C445 C444
0.047uF 0.047uF 0.047uF 0.047uF
The Current of
VPLL is arround
185.7 mA.
VCC3.3
CN404
2 1 OUT-R+
4 3
6 5 LED_A
8 7 KEY 1 C453
10 9 1000pF
1000pF
12 11 C452
20070308
CONN
New Key port define
INPUT_DET
Detect
4.7K 1/16W
Voltage
1K 1/16W 0.877 V
2.2K 1/16W 1.594 V
0.638 V
5 V
+5V
R469 R470
1K 1/16W 240Ω 1/16W
Q404
PMBS3906
LED_G R471 LED_A
680R 1/16W
4.SCALER
Rev
A
715G2571 1 2
Sheet 4 of 6