NEC MultiSync LCD1550V Service Manual page 95

MODEL LCD1550V-1 / LCD1550V-1-BK (LA-15R02-1 / LA-15R02-1-BK) FIRMWARE CTRL/B SCHEMATIC DIAGRAM (1/5)
PC_R and PC_B swap
(for layout).
5V_DDC 9
CABLE 10
11
DDC_SDA 12
HSYNC 13
VSYNC 14
DDC_SCL 15
ESD PROTECTION
C4 0.1uF
1 2
5VCC
ZD1 DALC208SC6
1 6
PC_R PC_G
2 5
CABLE 3 4 PC_B
DDC_SDA
DDC_SCL
HSYNC
VSYNC
D3 D4 D5 D6
Z5.6V Z5.6V Z5.6V Z5.6V
L1 FBM-L11-160808-280LMT
PC_R
1 2 2
R1
R2
75 1%
L2 FBM-L11-160808-280LMT
PC_G 1 2 2
R3
R4
CN1 75 1%
1
2
L3 FBM-L11-160808-280LMT
3 PC_B 1 2 2
4 R7
R8
5
75 1%
6 RGNDA
7 GGNDA
8 BGNDA
Analog ground plane.
EDID
R15 R13 R14
10K 27K 47K
DDC_SCL R16 1 2 100
DDC_SCL
DDC_SDA R17 1 2 100
DDC_SDA
1 RIN_P
RIN_P
100 1%
C1
2.2pF#
RIN_N
RIN_N
1 GIN_P
GIN_P
100 1%
C2
2.2pF#
GIN_N
GIN_N
1 BIN_P
BIN_P
100 1%
C3
2.2pF#
BIN_N
BIN_N
DDC_VCC
D1 EC10QS04 D2 EC10QS04
5V_DDC 1 2 2 1
5VCC
U2
C8
8 1
VCC NC
7 2
VCLK NC
0.1uF
6 3
SCL NC
5 4
SDA GND
24LC21A
10-1
5VCC
R5
10K
R6 100
CABLE 1 2
CABLE-DETECT
L4 BLM21P221SG
1 2
A3.3V 3.3VCC
R9 100
U1
HSYNC 1 2
1
A1 VCC
3
A2
5
A3
R10 100
9
A4
VSYNC 1 2
11
A5
13
A6
7
GND
R11 R12 C6 C7 SN74LVC14PWR
2.2K 2.2K
82pF 82pF
Modify C6 and C7 to 82pF for
blinking issue.
A3.3V
C5
0.1uF
14
2
Y1
AHSYNC
4
Y2 AHSYNC
6
Y3
8
Y4
10
Y5
AVSYNC
12
AVSYNC
Y6
Analog ground plane.