NEC AccuSync LCD72VM User Manual page 154

MODEL LCD72VM SCHEMATIC DIAGRAM MAIN BOARD (SCALER AND MUC) (3/9)
+3.3V_VDD
56.95mA
L101 C123 C124 C125 C126
120 OHM +
C122
0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V
22uF
Close to respective power Pins
GND
3.3V_AVDD
77.2mA
L103 C137 C138
120 OHM + Close to respective power Pins
C136
0.1uF/16V 0.1uF/16V
22uF 3.3V_PVDD
GND
3.3V_LAVDD L106
120 OHM
5.8mA
L105
120 OHM + C143 C144
10uF 0.1uF/16V
GND
GND
GND
GND
6/25 Change EDID-EP Circuit
Add Q107-3904
R175 to 10K
R174 to 22K
OPTIONAL
1 EDID-WP
+5V
FOR
DEBUGGING
PURPOSES
R128
ONLY
+5V R129
CN102
1
UDART_DO
GND
2
UDART_DI
C146
3
4
0.1uF/16V
G-PROBE
GND
+5V
C150
R133 R134 R135
0.1uF/16V
IC104
1 8
A0 VCC
2 7 R137 100 1/16W /WP
A1 WP
NVRAM_SCL
3 6 R139 100 1/16W
A2 SCK
NVRAM_SDA
4 5 R141 100 1/16W
VSS SI
M24C16-MN6T R145
GND
GND
3.3V_DVDD +1.8V_VDD
114mA
C127 C128 L102
120 OHM +
0.1uF/16V 0.1uF/16V
GND
38.4mA
L104
120 OHM
C140
22uF
GND
5.37mA
C139
0.1uF/16V
+5V +5V
R122 R123
4.7K 1/16W 4.7K
RESET
R124
NC R188 100 1/16W
R126 U101
GND
2
P1.0/T2
+5V 3
P1.1/T2EX
AUDIO_MUTE
4
P1.2/ECI
NVRAM_SDA 5
P1.3/CEX0
Q107 NVRAM_SCL 6
P1.4/CEX1
PMBS3904 R174 /WP 7
P1.5/CEX2
AUDIO_STDBY
10K 1/16W 8
P1.6/CEX3/WAIT#
1 9
P1.7/CEX4/A17/W
10
RST
UDART_DI
11
1 RXD P3.0/RXD
UDART_DO
13
1 TXD
P3.1/TXD
14
P3.2/INT0#
15
P3.3/INT1#
16
P3.4/T0
17
P3.5/T1
X101
GND 14.318MHz
20
XTAL2
21
XTAL1
+5V
35
EA#/VPP
44
VCC
C147 C148
33pF 33pF C149
0.1uF/16V 22
VSS
GND GND
W78E65P
GND PLCC44 - SOCKET-87L202-44
Philips P89C51RD2
Winbond W77E65P-24/40
SyncMOS SM2965
WINBOND W78E65P-40-56L1125-137-X
3 KEY_AUTO
3 KEY_MENU
3 KEY_RIGHT
3 KEY_LEFT
3 KEY_ONOFF
3 AUDIO_STDBY
3 AUDIO_MUTE
1.8V_DVDD
C130 C131 C132 C133 C134 C135
C129
22uF 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V
Close to respective power Pins
1.8V_AVDD 3.3V_PVDD
C141 C142
+
0.1uF/16V 0.1uF/16V
1.8V_AVDD
C176 33p
3.3V_PVDD
X102
3.3V_PVDD
C177 33p
1 RED+
1 RED-
1 GREEN+
1 GREEN-
1 BLUE+
1 BLUE-
1 HSYNC
1 VSYNC
1 SOG
1/16W
100 1/16W 0.1uF/16V
24 R125 VGA_CAB
VGA_CAB 1
A8/P2.0
25 KEY_AUTO
A9/P2.1
KEY_MENU
26
A10/P2.2
27 KEY_RIGHT
A11/P2.3
28 KEY_LEFT R127
A12/P2.4
29 KEY_ONOFF 4.7K 1/16W
A13/P2.5
A14
30
A14/P2.6 1 DDC_SCL
31 A15
1 DDC_SDA
A15/P2.7
32 SP6
PSEN#
RP101 33 1/16W
36 +5V 1 8
AD7/P0.7
37 2 7
AD6/P0.6
38 3 6
AD5/P0.5
39 4 5
AD4/P0.4
40 1 8
AD3/P0.3
41 2 7
AD2/P0.2
42 3 6
AD1/P0.1
43 4 5
AD0/P0.0
WRn
18 RP102 33 1/16W
P3.6/WR#
19 RDn
P3.7/RD#/A16
33 ALE
ALE/PROG#
R173
NC
34 SP7
NC
23 SP8 5/11 Add H/W ISP R130 to 0 Ohm
NC
12
NC
1
NC
+5V
+ C107 RDn R185 33
WRn R186 33
+5V NC
GND
R138 NC A15 R136 NC
R142
33 1/16W
R140 NC ALE
R146 33 1/16W
A14
GND
+5V
R179 4.7K 1/16W
RP103 4.7K 1/16W
KEY_MENU
1 8 KEY_UP => A9/P2.1 OF MCU
KEY_RIGHT
2 7 KEY_RIGHT => A10/P2.2 OF MCU
KEY_LEFT 3 6 KEY_DOWN => A11/P2.3 OF MCU
KEY_ONOFF 4 5 KEY_LEFT => A12/P2.4 OF MCU
KEY_ON/OFF => A13/P2.5 OF MCU
A14
R147 4.7K 1/16W A14 => MEM_REG(ZAN3SL)
A15 R148 4.7K 1/16W A15 => HCLK(ZAN3SL)
AUDIO_STDBY R149 4.7K 1/16W
AUDIO_MUTE R183 4.7K 1/16W
10-4
3.3V_DVDD 1.8V_DVDD
U102
3.3V_AVDD
69
AVDD_ADC_3.3
79
AVDD_ADC_3.3
89
AVDD_RPLL_3.3
84
VDD_RPLL_1.8
82
VDD_ADC_1.8
81
GND_ADC
72
AGND_ADC
76
AGND_ADC
80
AGND_ADC
83
VSS_RPLL
86
AVSS_RPLL
GND
87
XTAL
88
14.318MHz TCLK
77
RED+
78
RED-
74
GREEN+
75
GREEN-
70
BLUE+
71
BLUE-
95
HSYNC
96
VSYNC
73
SOG_MCSS
91
RESET_OUT
90
RESETn
C145
GND
IRQn 46
GPIO10/IRQn
DDC_SCL
97
DDC_SCL
DDC_SDA 98
DDC_SDA
38
GPIO13/AD7
39
GPIO12/AD6
40
GPIO11/AD5
41
HFS/AD4
42
HDATA3/AD3
43
HDATA2/AD2
44
HDATA1/AD1
45
HDATA0/AD0
1/16W 37
RDn
1/16W 36
WRn
35
HCLK/ALE
34
MEM_REG
GMZAN3/SL
QFP-100
GND
3.3V_LAVDD
3.3V_DVDD
1
AVDD_LV_3.3
4
VDD_OUT_LV_3.3
16
VDD_OUT_LV_3.3
28
VDD_OUT_LV_3.3
3
AVSS_LV
15
VSS_OUT_LV
27
VSS_OUT_LV
GND
5 LVDS_E9
CH3P_LV_E/R0
6 LVDS_E8
CH3N_LV_E/R1
LVDS_E7
7
CLKP_LV_E/R2
8 LVDS_E6
CLKN_LV_E/R3
9 LVDS_E5
CH2P_LV_E/R4
10 LVDS_E4
CH2N_LV_E/R5
11 LVDS_E3
CH1P_LV_E/R6
12 LVDS_E2
CH1N_LV_E/R7
13 LVDS_E1
CH0P_LV_E/G0
14 LVDS_E0
CH0N_LV_E/G1
LVDS_E[0..9]
LVDS_E[0..9] 4
17 LVDS_O9
CH3P_LV_O/G2
LVDS_O8
18
CH3N_LV_O/G3
19 LVDS_O7
CLKP_LV_O/G4
20 LVDS_O6
CLKN_LV_O/G5
21 LVDS_O5
CH2P_LV_O/G6
LVDS_O4
22
CH2N_LV_O/G7
23 LVDS_O3
CH1P_LV_O/B0
24 LVDS_O2
CH1N_LV_O/B1
25 LVDS_O1
CH0P_LV_O/B2
LVDS_O0
26
CH0N_LV_O/B3
LVDS_O[0..9]
LVDS_O[0..9] 4
30
PPWR
29
PBIAS
49
NC
61
NC
66
NC
52
GPIO0/PWM0 BRIGHTNESS 5
53
VOLUME 3
GPIO1/PWM1
54
GPIO2/DHS
55
GPIO3/DVS
56
GPIO4/DEN
57
GPIO5/DCLK
58
GPIO6/B7 LED_O 3
59
GPIO7/B4 LED_G 3
60 PPWR
PPWR 5
GPIO8/B6
50 PBIAS
PBIAS 5
GPIO9/B5
85 SP10 GND
VBUFS_RPLL
2 SP11 GND
VCO_LV
GND
62
STI_TM1
63
STI_TM2
GND