NEC AccuSync LCD51VM Series Service Manual page 124

MODEL LCD51VM / LCD51V SCHEMATIC DIAGRAM MAIN BOARD (Scaler) (2/4)
+3V3
B403 Close to respective power Pins
120R C412 C414 C415 C416
22uF/10V 0.1uF 0.1uF 0.1uF
GND
Close to respective power Pins
B407
120R C428 C429 C430 C431
22uF/10V 0.1uF 0.1uF 0.1uF
+2V5
GND
B408 Close to respective power Pins
120R C436 C437 C438 C439
22uF/10V 0.1uF 0.1uF 0.1uF
GND
B409 Close to respective power Pins
120R C443 C444 C445 C446
22uF/10V 0.1uF 0.1uF 0.1uF
2V5_AVDD
GND
B410
120R C449 C450 C451 C452
22uF/10V 0.1uF 0.1uF 0.1uF
Close to respective power Pins
GND
3V3_DVDD
U406
SH-4
2
VCC SH-4
B418
1 /RESET
Reset
RSTN
Circuit
3
C413 120R R419
GND
0.1uF
DS1818-10
SOT23
GND GND
3V3_DVDD
IIC
R420 10K
PBIAS_POL
R422 NC
FULL CUST
R424 NC
DDC_PORT_SEL
R426 10K
TCLK_SEL1
R432 NC
TCLK_SEL0
R435 NC
OCM-START
R436 10K
H-PORT-EN
R437 N.C
TCLK_SEL1 TCLK_SEL0
OUT OUT TCLK = 14.3 MHz, 115.2 Kbaud
OUT TCLK = 20 MHz, 57.6 Kbaud
IN
IN OUT TCLK = 24 MHz, 57.6 Kbaud
IN IN TCLK = 14.3 MHz, 57.6 Kbaud
PBIAS_POL
OUT PBIAS ACTIVE LOW
IN PBIAS ACTIVE HIGH
FULL CUST
OUT STANDALONE OPERATION
IN FULL CUSTOM
DDC_PORT_SEL Port used for DDC2Bi communication
OUT DDC_SDA/DDC_SCL
IN HFS/HCLK
3V3_DVDD
+5V
C417 C418 C419 C420 C421
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
C424
3V3_AVDD 0.1uF
C435 C433 C434 C432
0.1uF 0.1uF 0.1uF 0.1uF
+5V
PJ1117-2.5
2V5_AVDD_LV
AGND D405
3
VIN
1N4001
C440 C441 C442
C425
0.1uF 0.1uF 0.1uF
0.1uF
2V5_VDD
C447 C448
0.1uF 0.1uF
3V3_AVDD 3V3_AVDD
+5V
C453 C454
X401
5pF 5pF
14.318MHz
R473 R474
10K 10K
STBY
MUTE
100K
RMADDR[0..15]
RMADDR0
VROM
RMADDR15
RMADDR14
RMADDR12
RMADDR11
RMADDR10
RMADDR9
RMADDR8 R438 0R
R439 0R
VROM
GND
GND
+3V3
B421
VROM
NC
+5V
B422
120R
+3V3
PJ1084-3.3 U403
B405 120R
3 2
VIN VOUT
C423
C422 +
0.1uF
220uF/10V
GND GND
+2V5 3V3_AVDD
U404
B406 120R
2
VOUT
104
C426 + C427 108
113
680uF/10V
0.1uF 128
132
136
124
2V5_AVDD
GND GND
117
119
120
118
121
122
125
129
133
105
109
114
AGND GND
40
SH-1 PPWR
41
SH-1 PBIAS
TCLK
102
XTAL
103
10
A17
11
A16
12
POWER
13
SH-1 POWER
9
SH-3 HFS
8
SH-3 HCLK
18
19
17
ROM_WEn
35
135
SH-3 RED+
134
SH-3 RED-
131
SH-3 GREEN+
130
SH-3 GREEN-
127
SH-3 BLUE+
126
SH-3 BLUE-
101
SH-3 HS
100
SH-3 VS
123
RMADDR15
139
RMADDR14
140
RMADDR13
141
RMADDR12
142
RMADDR11
R425 145
RMADDR10
146
RMADDR9
0R 147
RMADDR8
148
RMADDR7
149
RMADDR6
150
U407 RMADDR5
151
RMADDR4
152
RMADDR3
31 153
WE
HDATA2 RMADDR2
154
HDATA1 RMADDR1
30 155
NC/A17
RMADDR0
2 156
A16
RMADDR15 3
A15
RMDATA7
RMADDR14 29 21 159
A14 DQ7
RMDATA6
RMADDR13 28 20 160
A13 DQ6
RMDATA5
RMADDR12 4 19 1
A12 DQ5
RMDATA4
RMADDR11 25 18 2
A11 DQ4
RMDATA3
RMADDR10
23 17 3
A10 DQ3
RMDATA2
RMADDR9
26 15 4
A9 DQ2
RMADDR8 RMDATA1
27 14 5
A8 DQ1
RMADDR7 RMDATA0
5 13 6
A7 DQ0
RMADDR6
6
A6
RMADDR5 ROM_OEn
7 7
A5
RMADDR4
8
A4
RMADDR3 VROM
9
A3
RMADDR2
10
A2
RMADDR1
11
A1
1
RMADDR0 12
A0 NC
gm2111 AD
24 32 C411 PQFP160
OE VCC
22 16
CE GND
0.1uF
A2900AATL-70
32-Pin PLCC Socket
GND
C455
U408
1
A0
2
A1
3
A2
4
VSS
24LC16B
GND
10-2
3V3_DVDD 2V5_VDD
U405
2V5_AVDD_LV
61
AVDD_RPLL_3.3 AVDD_LV_E_2.5
59
AVDD_DDDS_3.3 AVDD_OUT_LV_E_2.5
46
AVDD_SDDS_3.3 AVDD_OUT_LV_E_2.5
77
AVDD_BLUE_3.3 AVDD_LV_O_2.5
3.3V_A 63
AVDD_GREEN_3.3 AVDD_OUT_LV_O_2.5
74
AVDD_RED_3.3 AVDD_OUT_LV_O_2.5
AVDD_ADC_3.3
45
VCO_LV
VDD2_ADC_2.5
RXE3+
48
VDD1_ADC_2.5 CH3P_LV_E
RXE3-
49
CH3N_LV_E
RXEC+
50
GND1_ADC CLKP_LV_E
RXEC-
51
GND2_ADC CLKN_LV_E
RXE2+
52
CH2P_LV_E
RXE2-
53
CH2N_LV_E
RXE1+
54
SGND_ADC CH1P_LV_E
RXE1-
55
AGND_ADC CH1N_LV_E
RXE0+
56
AGND_BLUE CH0P_LV_E
RXE0-
57
AGND_GREEN CH0N_LV_E
AGND
AGND_RED
AVSS_RPLL
64
AVSS_DDDS CH3P_LV_O
65
AVSS_SDDS CH3N_LV_O
66
CLKP_LV_O
67
CLKN_LV_O
68
PPWR CH2P_LV_O
69
PBIAS CH2N_LV_O
70
CH1P_LV_O
71
CH1N_LV_O
72
TCLK CH0P_LV_O
73
XTAL CH0N_LV_O
60
AVSS_LV_E
58
GPIO20/HDATA3 AVSS_OUT_LV_E
47
GPIO19/HDATA2 AVSS_OUT_LV_E
GPIO18/HDATA1
76
GPIO17/HDATA0 AVSS_LV_O
75
GPIO16/HFS AVSS_OUT_LV_O
62
GPIO22/HCLK AVSS_OUT_LV_O
GPIO15/DDC_SCL
GND
GPIO14/DDC_SDA
80
RESERVED
81
RESETn RESERVED
82
GPIO11/ROM_WEn RESERVED
83
RESERVED
84
RED+ RESERVED
85
RED- RESERVED
86
GREEN+ RESERVED
87
GREEN- RESERVED
BLUE+
BLUE-
HSYNC
88
VSYNC GPO 0
89
ADC_TEST GPO 1
92
GPO 2
93
GPO 3
94
GPO 4
95
GPO 5
96
GPO 6
97
GPO 7
ROM_ADDR15
ROM_ADDR14
ROM_ADDR13
AUTO
34
ROM_ADDR12 GPIO10
RIGHT
33
ROM_ADDR11 GPIO9
16
ROM_ADDR10 GPIO21/IRQn
ROM_ADDR9
36
ROM_ADDR8 GPIO12/NVRAM_SDA
37
GPIO13/NVRAM_SCL
22
ROM_ADDR7 GPIO8/IRQINn
PWM0
23
ROM_ADDR6 GPIO0/PWM0
AUDIO_VOLUME
24
ROM_ADDR5 GPIO1/PWM1
25
ROM_ADDR4 GPIO2/PWM2
26
ROM_ADDR3 GPIO3/TIMER1
MENU
29
ROM_ADDR2 GPIO6
LEFT
32
ROM_ADDR1 GPIO7
ROM_ADDR0
UART_DI
27
ROM_DATA7 GPIO4/UART_DI
UART_DO
28
ROM_DATA6 GPIO5/UART_DO
ROM_DATA5
ROM_DATA4
112
ROM_DATA3 VBUFC
ROM_DATA2
ROM_DATA1
38
ROM_DATA0 STI_TM1
39
STI_TM2
ROM_OEn
GND
+3V3
GND
0.1uF
R443 R444
8 10K 10K
VCC
7
WP
SCL
6
SCK
SDA
5
SI
GND
All unused GPIO's can be
connected to GND.
For flexibility reasons they
are left unconnected.
LVDS_E[0..9] SH-1
LVDS_E9
LVDS_E8
LVDS_E7
LVDS_E6
LVDS_E5
LVDS_E4
LVDS_E3
LVDS_E2
LVDS_E1
LVDS_E0
AUTO SH-1
RIGHT SH-1
SDA
R430 100R
SCL
R433 100R
PWM0 SH-1
AUDIO_VOLUME SH-1
LED_A
LED_A SH-1
WP
WP SH-3
MENU SH-1
LEFT SH-1
+5V +5V
R455 R456
+5V
S402
10K 10K
1
2
3
4
GPROBE
GND
GM2121