ViewSonic N4261w-1M Service Manual page 39

9.6 PWM2030 PERIPHERALS/CLOCKS
V33
SW2 R224 4.7K
SW_MOM_4P
2 1
PNMI1 R225 1K
3 4
NMI
P{9} RESETn
P{15} EIRQn
P{9} IRQ1
Small
TP26
Small TP27
ViewSonic Corporation
PNMI
C379
0.1uF
P2
GPIO0
P3
GPIO1
P4
GPIO2
B24 R1
RESET GPIO3
T3
GPIO8
AF3
NMI
U29F
AD4 V4
INT0 EMDC
PWM2030
AE4 W1
INT1 EMDIO
V1
ETXEN
TIMERI
1 AE3 V2
TIMERI ETXD0
TIMERO
1 AD2 V3
TIMERO ETXD1
U1
ERCKI
C23 U2
TEST ECRSDV
B23 U3
DIVRST ERXD0
U4
ERXD1
D19
TMS
B22
TDO
C22 W3
TDI SCL0
D21 W2
TRST SDA0
D22 Y2
TCK SCL1
A23 W4
EJRST SDA1
PPWM0
A22 K26
PWM0 USBDm
PPWM1
A21 J26
PWM1 USBDp
C25
USBPON
STCCK0
C21 D24
STCCK0 USBOVC
STCCK1
B21 M26
STCCK1 USBXI
VCKIN0
C20 L25
VCKIN0 USBXO
VCKIN1
B20 K23
VCKIN1 USBREXT
MXI
G26 K24
XI USBRRTN
Y5 XTAL27.000 MXO
H25 L24
XO ATEST
2 1
R236 1.5M
C383 C384
33P 33P
SDA
SCL
R242 220K
R244 220K
C388 C389
Y6 XTAL27.000_Pullable
0.1uF 0.1uF
2 1
C390
33P
36
N4261w-1M
Confidential - Do Not Copy
NDWPn P{15}
Lo=MUTE
MUTE1 P{12}
Hi=MUTE
MUTE2 P{12}
Hi=MUTE
SLEEP P{13}
ERSTn
V33
EMDC
EMDIO
V33
ETXEN
ETXD0
ETXD1
ERCKI C380
ECRSDV
ERXD0 .1
ERXD1
SCL0 R230 22
SDA0 R231 22
SCL1 R232 22
SDA1 R233 22
VCC
USBXI
USBXO Y4 XTAL48.000
USBREXT
2 1
USBRRTN
ATEST
1 TP32 Small
R234
3.3K
R235 1.5M
C381 C382
33P 33P
V33
X1
15
VDD_P
1
VDD_V
3
VDD_V
10
VDD_V
23 22
VDD_V PD
5
VDD_I2C
2
VCLK
17 11
VDD_A REF
20
VDD_A
6 19
SDA ACLK
7
SCL
IVINA
IVINB
12 4
VIN GND_V
8
GND_I2C
IX1A
14 9
X1A GND
IX2A
13 16
X2A GND
18
GND_A
21
GND_A
C391
24
GND_V
33P
ICS422-27
ICS422-27-TSSOP24
J7
1 2
V33
3 4
V25
ERSTn
5 6
EMDC
7 8
EMDIO
9 10
ETXEN
11 12
ETXD0
13 14
ETXD1
15 16
ERCKI
17 18
ERXER
19 20
ECRSDV ECRSDV
21 22
ERXD0
23 24
ERXD1
25 26
27 28
29 30
ETHERNET
V33
J8
U30
1
8 6 2
VCC SCL
5 3
SDA
4
7 1
WP A0
CON4_NC
2
A1
4 3
GND A2
24LC256I
SCL
SDA
TSCL
TSDA
J13
1
2
3
4
5
6
CON6_NC
V33
IPDn R237 10K
V33
VCLKA R238 47
R239 47
C385
R240 47 .1
RCLKA R241 47
ACLK R243 47
ACK18 P{12,17}
V33
V25
ERSTn
EMDC
EMDIO
ETXEN
ETXD0
ETXD1
ERCKI
ERXER
ERXER P{17}
ERXD0
ERXD1
P{4,9,12}
P{4,9,12}
P{2}
P{2}
V33 V33
C386 C387
.1 .1