![background image](http://html.mh-extra.com/html/sharp/lc-20dv20u/lc-20dv20u_service-manual_373836072.webp)
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC2404 BR24L64F-WE2
EEPROM
1
2
3
4
5678
IC2406
HY27US08281A-TP
FLASH MEMORY
1
10 11 12 13 14 15 16 17 18 19
2
20 21 22 23 24
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41
42
43
44
45
46
47
48
5
6
7
8
9
JG2424
JG2457
FCLK
JG2413
JG2414
JG2408
JG2409
JG2411
JG2412
JG2407
JG2415
C2507
22
6.3V
TZV
L29
L30
M29
J28
N30
N29
M30
P29
N28
N27
H28
K29
K30
J29
J30
J27
K27
K28
L27
L28
M27
M28
IC2401
X240H
ATSC/CLEAR CABLE ASIC
P30
IC2401
X240H
ATSC/CLEAR CABLE ASIC
AG20
AK21
AJ20
AH20
G1
J4
H2
H1
J3
G4
F3
E2
D1
D3
C2
B3
F4
C1
E4
E3
D2
C4
B4
C5
D6
H4
A3
D8
D7
C6
B6
A4
B5
C7
A5
G2
AK11
F1
H3
IC2401
X240H
ATSC/CLEAR CABLE ASIC
G3
D5
F2
E1
C2509
0.1 B
C2508
0.1
B
C2506
0.1
B
R2481
2.2K
R2482
10K
R2464
10K
R2485
3.3K
R2484
3.3K
R2592
100
R2593
100
R2470
10K
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
NFIO7
NFIO6
NFIO5
NFIO4
NFIO3
NFIO2
NFIO1
NFIO0
NFCLE
ROMSCK_NFALE
ROMSO_NFWE#
CS_NF1#
ROMSI_NFRE#
NFRY_BY#
ROMCS_NFCE0#
NFIO0
FAD7_8
NFIO1
FAD9
NFIO2
NFIO3
NFIO4
NFIO5
NFIO6
NFIO7
ROMSCK_NFALE
ROMSI_NFRE#
ROMSO_NFWE#
NFRY_BY#
CS_NF1#
NFCLE
DTV_RESET
FAD9
FAD7_8
ROMCS_NFCE0#
ROMSO_NFWE#
ROMSCK_NFALE
ROMSI_NFRE#
DTV_RESET
I2C_CLKA
I2C_DATA
+3.3V
D_GND
I2C_CLKA
I2C_DATA
H-40
H-39
(DIGITAL PCB)
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
IO(0)
IO(1)
IO(2)
IO(3)
IO(4)
IO(5)
IO(6)
IO(7)
VSS
VCC
VSS
VCC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
WP
WE
ALE
CLE
NC
NC
NC
NC
NC
SE
NC
NC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
CE
RE
R/
B
/GND
VSS
VCC
A0
A2
WP
A1
SCL
SDA
0
0
3.3
0
3.3
0
2.8
2.8
NFCLE
NFALE
(6/14 FLASH)
NFWEb
NFCEb(1)
NFREb
NFRY_BYb
NFCEb(0)
NFIO(0)
NFIO(1)
NFIO(2)
NFIO(3)
NFIO(4)
NFIO(5)
NFIO(6)
NFIO(7)
NFIO(8)
NFIO(9)
NFIO(10)
NFIO(11)
NFIO(12)
NFIO(13)
NFIO(14)
NFIO(15)
NC
NC
NC
NC
NC
NC
NC
NC
I2CCLKA
I2CDATAA
I2CCLKC
I2CDATAC
SPI_CLK
SPI_IN
SPI_OUT
SPI_CS0
SPI_CS1
(8/14 I2C BUS)
NC
NC
NC
NC
NC
NC
FSTB
FRD
FWE
FCLK
(7/14 FLEX BUS)
FAD(0)
FAD(1)
FAD(2)
FAD(3)
FAD(4)
FAD(5)
FAD(6)
FAD(7)
FAD(8)
FAD(9)
FAD(10)
FAD(11)
FAD(12)
FAD(13)
FAD(14)
FAD(15)
FINTR(0)
FINTR(1)
FINTR(2)
FINTR(3)
FINTR(4)
FCEb(0)
FCEb(1)
FCEb(2)
FCEb(3)
FRDYb
FBE(0)
FBE(1)
FALE(0)
FALE(1)
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
FLASH SCHEMATIC DIAGRAM
NC
NC
NC
NC
NC
NC
NC
PCBDH0
CEF169
TO ASIC
FROM POWER2
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.2
3.3
3.3