Dell E177FPc Service Manual page 24

17" LCD Color Monitor
+3.3V_VDD
FB401 C402 C403 C404
120OHM +
C401
0.1uF/16V 0.1uF/16V 0.1uF/16V
22uF/16V
Close to respective power Pins
GND
3.3V_AVDD
FB402 C417 C418 C445
120OHM +
C416
0.1uF/16V 0.1uF/16V 0.1uF/16V
22uF/16V
Close to respective power Pins
3.3V_LAVDD
GND
FB403
120OHM + C426
C425
22uF/16V 0.1uF/16V
GND
U405
OPTIONAL
3
VCC
FOR
2
DEBUGGING RSTN
1
PURPOSES
GND
ONLY
NC
+5V 3
CN402
GND
1
UDART_DO
2
UDART_DI
1 2
3
4
GND
G-PROBE
+3.3V_VDD
C431
R406 R407 R408
0.1uF/16V
U403
1 8
A0 VCC
2 7 R409
A1 WC
3 6 R410
A2 SCL
4 5 R411
VSS SDA
M24C16-MN6T
GND
Boot-Strap Configuration:
Name 10 KOhm Open
ATMEL_EN ATMELSPI ROM Standard SPI ROM
(PWM0)
UART_PIN_SEL UART on GPO UART on DDC
(PWM1)
V_EDID_ATMEL ATMELSPI ROM Standard SPI ROM
(SPI_CSn)
GPO_0 Ext. ROM JTAG Off
3.3V_DVDD +1.8V_VDD
C405 C406 C407 FB404
120OHM + C409
0.1uF/16V 0.1uF/16V 0.1uF/16V 22uF/16V
3.3V_PVDD GND
C446 FB406 C424 FB405
+
C419
120OHM 120OHM
0.1uF/16V 0.1uF/16V 22uF/16V
GND
GND
+5V
+5V R433
NC
HOLD#
R421
C440 R437 5.6K 1/16W
NC
ROM_WP#
NC
R428
R456
GND NC 1 Q402 NC
NC
C429 SPI_3V3
NC
R422
GND 10K 1/16W
GND
/WP
100 1/16W
NVRAM_SCL
100 1/16W
100 1/16W NVRAM_SDA
(6) BRIGHTNESS
R424
4.7K 1/16W
+3.3V_VDD
GND
Default
R432
4.7K 1/16W
Open
U402
1 8
CE# VDD
Open 2 7 HOLD#
SO HOLD#
ROM_WP#
3 6
WP# SCK
4 5
VSS SI
Open
SST25VF020-20-4C-SAE
GND
3.3V_PVDD
3.3V_AVDD
1.8V_AVDD
C410 C411 C412 C413 C414
0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V
Close to respective power Pins
1.8V_DVDD
C420 C421 C422 C423
0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V
C427 33pF
3.3V_PVDD
X401 108
XTAL
14.318MHz
109
3.3V_PVDD
TCLK
C428 33pF
99
(2) RED+ RED+
100
(2) RED- RED-
96
(2) GREEN+
GREEN+
97
(2) GREEN- GREEN-
93
(2) BLUE+
BLUE+
94
(2) BLUE- BLUE-
89
(2) HS HSYNC
90
(2) VS
VSYNC
RESETn 111
RESETn
+3.3V_VDD
R419
R418
0 1/16W
NC 63
RESERVED
C441 64
(2) DDC_SCL_VGA DDC_SCL_VGA
0.1uF/16V 65
(2) DDC_SDA_VGA
DDC_SDA_VGA
R400 NC 66
DDC_SCL_DVI
GND R401 NC 67
DDC_SDA_DVI
72
RX2+
73
RX2-
75
RX1+
76
RX1-
80
RX0+
81
RX0-
83
RXC+
84
RXC-
3.3V_DVDD 3.3V_AVDD
R402 249 1/16W 69
REXT
C430
0.1uF/16V 52
CRVSS
GND GND
119
PWM1 / GPO_5
50
PWM0 / GP0_4
UDART_DO 58
GPO_3
UDART_DI 57
GPO_2
56
GPO_1
EDID_WP 51
EDID_WP
GPO_0
(2)
59
SPI_CSn
R426 R427 R417 R416
R423
4.7K 1/16W
+3.3V_VDD 4.7K 1/16W
R429
GND 10K 1/16W
60
SPI_CLK
ROM_SCLK
GND 61
SPI_DI
ROM_SDI 62
SPI_DO
C435
0.1uF/16V
GND
24
3.3V_LAVDD 3.3V_DVDD 1.8V_DVDD 1.8V_AVDD
120 NVRAM_SCL
GPIO_8
NVRAM_SDA
121
GPIO_9
122 /WP
GPIO_10
123
GPIO_11
124 R430 ROM_WP#
GPIO_12
125 NC
GPIO_13
126
GPIO_14
3
RESERVED
4
RESERVED
5
RESERVED
6
RESERVED
LVDS_E8
7
E_CH3_N
8 LVDS_E9
E_CH3_P
LVDS_E4
11
E_CH2_N
12 LVDS_E5
E_CH2_P
LVDS_E2
13
E_CH1_N
14 LVDS_E3
E_CH1_P
15 LVDS_E0
E_CH0_N
LVDS_E1
16
E_CH0_P
9 LVDS_E6
E_CLK_N
LVDS_E7
10
E_CLK_P
19
RESERVED
20
RESERVED
21
RESERVED
22
RESERVED
23
RESERVED
24
RESERVED
27
RESERVED
28
RESERVED
29
RESERVED
30
RESERVED
31 LVDS_O8
O_CH3_N
32 LVDS_O9
O_CH3_P
35 LVDS_O4
O_CH2_N
LVDS_O5
36
O_CH2_P
37 LVDS_O2
O_CH1_N
38 LVDS_O3
O_CH1_P
LVDS_O0
39
O_CH0_N
U401 40 LVDS_O1
O_CH0_P
gm2621 LVDS_O6
33
O_CLK_N
34 LVDS_O7
O_CLK_P
MQFP-128
41 R476
O_BON
42 NC
RESERVED
43
RESERVED
44 R477
RESERVED
45
RESERVED
46
RESERVED
127 PPWR GND
PPWR PPWR
PBIAS
49
PBIAS PBIAS
105
VBUFC_RPLL
115
LBADC1
LBADC_IN1
114
LBADC2
LBADC_IN2
113
LBADC_IN3 CABLE_DET
112
LBADC_VSS
GND
gm2621
Title
GND
Size Document Number
Custom
Date: Wednesday, June 29, 2005
Dell E177FPc
POWER_ON (4)
LED_O (4)
LED_G (4)
LVDS_E[0..9]
LVDS_E[0..9] (5)
LVDS_O[0..9]
LVDS_O[0..9] (5)
+3.3V_VDD
(6)
(6)
(4)
(4)
(2)
Rev
D
Sheet 3 of 6