NEC MultiSync LCD1550V Service Manual page 96

1. R24 33 ohm change to 47 ohm and R25 33 ohm change to
0 ohm => to solve H. SIZE move issue. (Sage FAE suggestion)
2. Add L22 bead to separate S9050 pin12 from power and
a 2.5V. => Sage FAE suggestion.
2.5VCC
L5 BLM21P221SG
1 2
VDD_D_CORE1 1 2 VSS_D_CORE1
C9 0.1uF
VDD_D_CORE2 1 2 VSS_D_CORE2
C10 0.1uF
VDD_D_CORE3 1 2 VSS_D_CORE3
C11 0.1uF
1 2
VDD_D_CORE4 VSS_D_CORE4
C12 0.1uF
A2.5V
VDD_D_CORE5 1 2 VSS_D_CORE5
C15 0.1uF
VDD_D_CORE6 1 2 VSS_D_CORE6
C16 0.1uF
VDD_D_CORE7 1 2 VSS_D_CORE7
C17 0.1uF
VDD_D_CORE8 1 2 VSS_D_CORE8
C18 0.1uF
VDD_D_CORE9 1 2 VSS_D_CORE9 L7
C20 0.1uF
1 2
VDD_A_PNLPLL VSS_A_PNLPLL
VDD_A_MCPLL VSS_A_MCPLL
C24 0.1uF BLM21P221SG
1 2
C27 10uF/10V
TM_VDD25_PLL 2 1 TM_VSS25_PLL
C45 0.1uF
2 1
TM_DVDD1 TM_DVSS1
C47 0.1uF
TM_DVDD2 2 1 TM_DVSS2
C49 0.1uF
3.3VCC
TM_AVDD 1 2 TM_AVSS
C35 0.1uF
1 2
TM_VDD0 TM_VSS0
C37 0.1uF
1 2
TM_VDD1 TM_VSS1
C38 0.1uF
1 2
TM_VDD2 TM_VSS2
C39 0.1uF
1 2
TM_VDDC TM_VSSC
C40 0.1uF
1
PNL_CLKO
R30
1
R31
C54
470pF
All manuals and user guides at all-guides.com
2 1
Y1 14.318MHz
C13 22pF C14 22pF
2 1 2 1 2 1
R21 M
1
crystal ground plane.
L22 BLM21P221SG
1 2
R24 47
1 2 1 2
L6 BLM21P221SG
1 2
C19 1000pF C22 0.1uF
1 2 1 2
C21 0.1uF R25 0 1 2
1 2
C23 0.1uF
1 2
C25 1000pF C26 10uF/10V
2 1
C29 0.1uF
VDD_A VSS_A
1 2 2 1
C28 0.1uF
VDD_A VSS_A
1 2 1 2
C30 0.1uF
VDD_A 1 2 VSS_A R26 10
C31 0.1uF
VDD_A 1 2 VSS_A
C32 0.1uF
1 2 C34 10uF/10V
2 1
C33 22uF/50V
C36 0.1uF
2 1
1 2
Analog ground plane. R27 10
L8 BLM21P221SG
1 2
3.3VCC
VDD_D_IO1 1 2 VSS_D_IO1
C41 0.1uF
VDD_D_IO2 1 2 VSS_D_IO2
C42 0.1uF
VDD_D_IO3 1 2 VSS_D_IO3
C43 0.1uF
VDD_D_IO4 1 2 VSS_D_IO4
C44 0.1uF
VDD_D_IO5 1 2 VSS_D_IO5
C46 0.1uF
VDD_D_IO6 1 2 VSS_D_IO6
C48 0.1uF
VDD_D_IO7 1 2 VSS_D_IO7
C50 0.1uF
1 2
C51 10uF/10V
To change FS781 POWER => 5VCC change
to 3.3VCC. (EMI better)
C52 C53
10uF/10V 0.1uF R29
10K
U4
2
1 8
XIN VDD
22
2 7
XOUT S0
PNL_CLKI
3 6
S1 FSOUT
2 1 2
4 5
LF VSS
3.3K
R32 1K#
FS781
C55
0.1uF#
RST#
RST#
KEY2-4
KEY2-4
KEY2-3
KEY2-3
KEY2-2
KEY2-2
KEY2-1
KEY2-1
DDC_SCL R18 1 2 22
DDC_SCL
DDC_SDA R19 1 2 22
DDC_SDA
AHSYNC
AHSYNC
AVSYNC
AVSYNC
1 2
R20 10K
U3
R22 1 2 1K
1
MCOP1
R23 1 2 1K
2
MCOP2
3
XTALIN
4
XTALOUT
VDD_A_PLL1
5
VDD_A_PLL
VSS_A_PLL
6
VSS_A_PLL
VDD_A_PLL2
7
VDD_A_PLL
VSS_A_PLL
8
VSS_A_PLL
VSS_A_PLL
9
VSS_A_PLL
VDD_D_PLL
10
VDD_D_PLL
VDD_D_PLL
11
VDD_D_PLL
DVDD
12
DVDD
DVSS
13
DVSS
VSS_A
14
VSS_A
VDD_A
15
VDD_A
RIN_N
16
RIN_N
RIN_N
RIN_P
17
RIN_P
RIN_P
VDD_A
18
VDD_A
VSS_A
19
VSS_A
VSS_A
20
VSS_A
VDD_A
21
VDD_A
22
VDD_A
GIN_N
23
GIN_N
GIN_N
GIN_P
24
GIN_P
GIN_P
VDD_A
25
VDD_A
VSS_A
26
VSS_A
VSS_A
27
VSS_A
VDD_A
28
VDD_A
BIN_N
29
BIN_N BIN_N
BIN_P
30
BIN_P
BIN_P
VDD_A
31
VDD_A
VSS_A
32
VSS_A
VSS_A
33
VSS_A
34
VSS_A
35
VDD_A
VDD_D_CORE1
36
VDD_D_CORE1
VSS_D_CORE1
37
VSS_D_CORE1
PWM0
38
PWM0 GPIO0
SCL
39
SCL GPIO1
SDA
40
SDA
GPIO2
LEDY
41
LEDY GPIO3
VDD_D_CORE2
42
VDD_D_CORE2
VSS_D_CORE3
43
VSS_D_CORE2
TXD
44
TXD
MCTX
RXD
45
RXD MCRX
R28 10K
1 2 46
INTR
47
MCA19
48
MCAD[16..17] MCA18
MCAD17
49
MCA17
MCAD16
50
MCA16
MCA15
51
MCA15
MCA14
52
MCA14
MCA[8..15]
s9050
MCA13
MCA12
MCA11
MCA10
MCA9
MCALE
MCRD#
MCWR#
CS0#
MCA8
MCAD7
MCAD6
MCAD5
MCAD4
MCAD3
MCAD2
MCAD1
MCAD0
MCAD[0..7]
s9050
LEDG
LEDG
KEY1-1
KEY1-1
KEY1-2
KEY1-2
156
PD47
155
PD46
154
PD45
153
PD44
152
PD43
151
PD42
150
PD41
149
PD40
148
PD39
147
PD38
146
PD37
145
PD36
VSS_D_IO4
144
VSS_D_IO4
VDD_D_IO4
143
VDD_D_IO4
VSS_D_CORE7
142
VSS_D_CORE7
VDD_D_CORE7
141
VDD_D_CORE7
PD35
140
PD35
PD34
139
PD34
PD33
138
PD33
PD32
137
PD32
PD31
136
PD31
PD30
135
PD30
PD29
134
PD29
PD28
133
PD28
PD27
132
PD27
PD26
131
PD26
PD25
130
PD25
PD24
129
PD24
PD23
128
PD23
PD22
127
PD22
PD21
126
PD21
PD20
125
PD20
PD19
124
PD19
123
PSCLK ICPH
VSS_D_IO3
122
VSS_D_IO3
VDD_D_IO3
121
VDD_D_IO3
VSS_D_CORE6
120
VSS_D_CORE6
VDD_D_CORE6
119
VDD_D_CORE6
PD18
118
PD18
PD17
117
PD17
PD16
116
PD16
PD15
115
PD15
PD14
114
PD14
PD13
113
PD13
PD12
112
PD12
PD11
111
PD11
PD10
110
PD10
PD9
109
PD09
PD8
108
PD08
PD7
107
PD07
PD6
106
PD06
PD5
105
PD05
PD[0..35]
PD4
PD3
PD2
PD1
PD0
PNL_CLKI
PNL_CLKO
CABLE-DETECT
CABLE-DETECT
CTL-I2C
CTL-I2C
PENVDD
PENVDD
PENBKL
PENBKL
ISTH
ISTH
ILOAD
ILOAD
IPOL
IPOL
IREV
IREV
ISTV1
ISTV1
ISTV2
ISTV2
ICPV
ICPV
IOE
IOE