Read Sharp LC-20SD4E (serv.man5) Service Manual online
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
L1
N3
K1
L3
N1
J1
K3
K2
N4
J2
L2
P2
G1
N2
P24
T26
R24
R25
AC26
Y24
Y25
W25
W26
V23
V24
T23
V25
V26
Y26
Y23
AB26
T1
T2
R1
R2
U1
U2
U4
W4
W2
AF1
AA3
Y3
AF2
AE3
AE12
AC5
AC11
AE6
AE20
A13
AF6
AF21
AC18
AC21
AD21
T24
P26
R26
P4
K4
L4
T4
R4
T3
R3
AE14
AC14
AE13
AF16
P3
P1
AF14
A11
H2
H3
G4
H4
G2
IC2401
STI5516_27X27
DVB-T ASIC
A1
B1
C1
G3
C2
D2
D1
H1
E3
E1
E2
C11
B10
A9
B9
C9
D9
A7
B7
A6
B6
C7
D7
A5
B5
C6
A4
B4
A3
B2
A2
B3
D6
A21
A20
H26
N25
N23
N24
M25
A25
K24
L23
E25
F25
J26
H25
H23
J23
K25
K23
A19
A18
A17
AC6
AD12
AD16
AB1
AD1
AC1
AE1
AE2
AD2
Y4
AC2
AA4
AA2
AB2
AB3
AF13
AF11
AF12
AF8
AF10
AF9
AD8
AE8
AC8
AE10
AC9
AE9
AD9
AE11
AD11
AD6
AF4
AF5
B13
A10
C13
B12
C12
B11
AE26
AC25
D19
AB24
AB25
AD26
C22
B23
R23
U25
U26
AE23
AF23
AF24
AE24
AF25
AD25
AF26
AE25
AB23
C23
B18
C18
D18
C19
C20
D20
C21
D21
M24
M26
N26
P23
C26
D24
C24
A23
A24
A22
E24
F24
B24
B26
A26
K26
J25
H24
J24
D26
F26
E26
G26
L26
L25
L24
M23
P25
R2415
10K
R2404
200
+-1%
R2401
330K
R2420
4.7K
R2411
47
R2408
10K
R2412
10K R2413
10K
R2403
12K
R2402
10K
R2417
10K
R2416
10K
R2418
10K
R2405
10K
R2406
75
R2407
75
X2401
32.768KHz
100DA32R01
C2402
22P CH
C2404
0.1 B
C2403
1B
C2401
22P CH
NR2401
4D02WGJ0103TCE
L2401
10uH
NLV25
B2401
FCM1608CF-600T06
CP2403
14_8261_208_214_826+
1
10
11
12
13
14
15
16
17
18
19
2
20
3
4
5
6
7
8
9
CP2402
A2001WV2-5P
A2001WV2-5P
1
2
3
4
5
SH2401
TP00370-21
SH2402
TP00370-21
SH2403
TP00370-21
SH2404
TP00370-21
SH2405
TP00370-21
W806
W805
W807
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
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
SMID[0]
VDDFS
VDDPLL
P1V8
VDDAC
CVBS
VR
YG
UB
VDDA
VDDADAC
VBGFIL
LEFTP
LEFTM
RIGHTP
RIGHTM
SPDIF
SMID[1]
SMID[2]
SMID[3]
SMID[4]
SMID[5]
SMID[2]
SMID[3]
SMID[4]
SMID[5]
TS2D[0]
SMID[6]
TS2D[1]
SMID[7]
TS2D[2]
SMID[8]
TS2D[3]
SMID[9]
TS2D[4]
SMID[10]
TS2D[5]
SMID[11]
TS2D[6]
SMID[12]
TS2D[7]
SMID[13]
CPUWAIT
SMID[14]
CIIRQ1
SMID[15]
CIIRQ0
SMIA[0]
CION
SMIA[1]
CIRESET
SMIA[2]
TS2CLK
EMID[0]
SMIA[3]
TS2VAL
EMID[1]
SMIA[4]
TS2STRT
EMID[2]
SMIA[5]
EMIBE0
EMID[3]
EMID[0]
SMIA[6]
EMILBA
EMID[4]
SMIA[7]
EMID[1]
EMICS3
EMID[5]
SMIA[8]
EMID[6]
EMID[2]
SMIA[9]
EMIA[2]
EMID[7]
SMIA[10]
EMID[3]
EMIA[3]
EMID[8]
SMIA[11]
EMIA[4]
EMID[9]
EMID[4]
SMIA[12]
EMIA[5]
EMID[10]
SMIA[13]
EMID[5]
EMIA[6]
EMID[11]
SMICS
EMIA[7]
EMID[12]
EMID[6]
SMIDQML
EMIA[8]
EMID[13]
SMICAS
EMID[7]
EMIA[9]
EMID[14]
SMIRAS
EMIA[10]
EMID[15]
EMID[8]
SMIWE
EMIA[11]
EMIA[2]
SMIDQMU
EMID[9]
EMIA[12]
EMIA[3]
SMICLK
EMIA[13]
EMIA[4]
EMID[10]
EMIA[14]
EMIA[5]
EMID[11]
EMIA[15]
EMIA[6]
EMIA[16]
EMIA[7]
EMID[12]
FED[0]
EMIA[18]
EMIA[8]
EMID[13]
EMIA[9]
FED[1]
EMIA[10]
EMID[14]
FED[2]
EMIA[11]
EMID[15]
EMIA[12]
FED[3]
VDDFS
EMIA[13]
EMIA[2]
FED[4]
VDDPLL
EMIA[14]
EMIA[3]
VDDA
EMIA[15]
FED[5]
VDDADAC
EMIA[16]
EMIA[4]
FED[0]
FED[6]
27MHZPWM
EMIA[17]
FED[1]
EMIA[5]
CLK27MHZ
EMIA[18]
FED[7]
FED[2]
SYSRESET
EMIA[19]
EMIA[6]
FED[3]
FECLK
NOTJRST
EMIA[20]
FED[4]
EMIA[7]
VDDAC
EMIA[21]
FESTROUT
FED[5]
EMIA[22]
EMIA[8]
FED[6]
FEERROR
EMIA[23]
FED[7]
EMIA[9]
FEVALID
I2CSDA
EMIBE1
EMIA[10]
FERESET
EMIBE0
TS2D[0]
I2CSCL
EMICAS
EMIA[11]
TS2D[1]
FEOFF
EMIRAS
EMIA[12]
FEERROR
EMIOE
TS2D[2]
FEVALID
EMICS5
EMIA[13]
TS2D[3]
FECLK
EMIRW
EMIA[14]
FESTROUT
EMICLK
TS2D[4]
EESDA
EMIA[15]
TS2D[5]
EESCL
EMIA[16]
EMICS0
TS2D[6]
EMIA[17]
TS2D[7]
P5V
EMIA[18]
TS2CLK
EMIA[19]
TS2STRT
EMIA[20]
GND
RXD
EMIA[21]
TS2VAL
EMIA[22]
TXD
SMIA[13]
EMIA[23]
SMIA[12]
ASPECT
EMIBE1
SMIA[11]
LEFTM
EMIBE0
TRIGOUT
RIGHTM
SMIA[10]
CVBS
EMICAS
SMIA[9]
VR
EMIRAS
TRIGIN
YG
SMIA[8]
UB
EMIOE
SMIA[7]
TVTX
EMICS0
TVRX
SMIA[6]
VBGFIL
SMIA[5]
LEFTP
TMS
RIGHTP
SMIA[4]
SPDIF
SMIA[3]
WAKEUP
TCK
MUTE
SMIA[2]
P1V8
EMICS5
SMIA[1]
P5V
EMIRW
TDI
P3V3
SMIA[0]
GND
EMICLK
SMID[15]
TDO
SMID[14]
SMID[13]
NOTJRST
NOTTRST
CLK27MHZ
SYSRESET
27MHZPWM
SMID[10]
SMID[11]
SMID[12]
CPUWAIT
TRIGOUT
NOTTRST
CIRESET
FERESET
SMIDQML
SMIDQMU
SMID[0]
SMID[1]
SMID[2]
SMID[3]
SMID[4]
SMID[5]
SMID[6]
SMID[7]
SMID[8]
SMID[9]
EMILBA
EMICS3
WAKEUP
CIIRQ1
CIIRQ0
TRIGIN
ASPECT
I2CSDA
I2CSCL
SMICLK
SMICAS
SMIRAS
P3V3
FEOFF
EESDA
EESCL
SMICS
SMIWE
MUTE
CION
TVTX
TVRX
TDI
TMS
TDO
TCK
P5V
TXD
RXD
H-28
H-27
ASIC SCHEMATIC DIAGRAM
(DIGITAL PCB)
FOR LCD
AT+5V
TX
RX
NC
GND
NC NC
NC
NC
NC
FROM/TO POWER I/O
JTAG CONNECTOR
NC
NC
TRIGOUT
TRIGIN
TMS
TCK
TDI
TDO
NOTJRST
NOTTRST
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
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
NC
NC
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
VDDFS
VDDFS
VDDPLL
LPCLKOSC
LPCLKIN
P1V8
VDDAC
VDDAC
VREFDACRGB
VDDVDACYCC
VREFDACYCC
IRFEDACYCC
GND
CVBS
Y
C
VR
YG
UB
VDDA
VDDADAC
VDDA
VDDADAC
IREF
VBGFIL
LEFTP
LEFTM
RIGHTP
RIGHTM
SPDIF
EMID[0]
EMID[1]
EMID[2]
EMID[3]
EMID[4]
EMID[5]
EMID[6]
EMID[7]
EMID[8]
EMID[9]
EMID[10]
EMID[11]
EMID[12]
EMID[13]
EMID[14]
EMID[15]
EMIA[2]
EMIA[3]
EMIA[4]
EMIA[5]
EMIA[6]
EMIA[7]
EMIA[8]
EMIA[9]
EMIA[10]
EMIA[11]
EMIA[12]
EMIA[13]
EMIA[14]
EMIA[15]
EMIA[16]
EMIA[17]
EMIA[18]
EMIA[19]
EMIA[20]
EMIA[21]
EMIA[22]
EMIA[23]
EMIBE1
EMIBE0
EMICAS
EMIRAS
EMIOE
EMICS0
NOTEMICSB
NOTEMICSC
EMICS3
EMICS5
EMIRW
EMICLK
EMILBA
P4 CPUWAIT
K4 NOTEMIACKREQ
K4 NOTEMIACKREQ
EMIBOOTMODE
WAKEUP
CIIRQ1
CIIRQ0
TDI
TMS
TDO
TCK
TRIGOUT
TRIGIN
NOTTRST
CLK SPEED STL
CLK27MHZ
SYSRESET
CIRESET
FERESET
VIDEOOFF
MUTE
FEOFF
CION
TVTX
TVRX
ASPECT
I2CSDA
I2CSCL
EESDA
EESCL
27MHZPWM
TXD
RXD
SMICS
SMICLKIN
SMICLKOUT
SMIDQML
SMIDQMU
SMICAS
SMIRAS
SMIWE
SMID[0]
SMID[1]
SMID[2]
SMID[3]
SMID[4]
SMID[5]
SMID[6]
SMID[7]
SMID[8]
SMID[9]
SMID[10]
SMID[11]
SMID[12]
SMID[13]
SMID[14]
SMID[15]
SMIA[0]
SMIA[1]
SMIA[2]
SMIA[3]
SMIA[4]
SMIA[5]
SMIA[6]
SMIA[7]
SMIA[8]
SMIA[9]
SMIA[10]
SMIA[11]
SMIA[12]
SMIA[13]
TS2VAL
TSIN2LERROR
TS2CLK
TS2STRT
TS2D[7]
TS2D[6]
TS2D[5]
TS2D[4]
TS2D[3]
TS2D[2]
TS2D[1]
TS2D[0]
FEVALID
FEERROR
FESTROUT
FECLK
FED[7]
FED[6]
FED[5]
FED[4]
FED[3]
FED[2]
FED[1]
FED[0]
1
0.8
0.6
0.6
0.6
0.3
0.2
0.2
0.3
0.3
0.6
0.6
0.3
0.3
0.2
0.3
0.6
0.2
0.2
2.6
0.6
0.7
2.2
0.5
1.0
0.9
2.7
1.5
1.2
2.2
3.1
0.3
0.4
1.1
0.3
0.2
0.6
2.4
0.3
0.1
3.3
3.3
3.3
3.3
2.3
3.3
3.3
0.6
3.3
3.3
0.9
0.9
0
3.3
0
0
5.0
5.0
3.3
3.3
0
3.3
0
0
0
0
1.5
1.8
5.0
3.3
0
0
3.3
3.3
2.4
3.3
0
3.3
3.3
3.3
3.3
1.3
5.0
2.5
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0.6
0.7
0.6
0.8
0.8
0.8
1.3
0.6
0
0.6
0.6
0.7
1.2
1.7
1.2
0.8
0.2
0.2
0.4
0.4
0
0.4
0
0
0.4
0
0.1
0.2
0
2.5
0
0
0
0
0
0
0
0
0
0
0
0
1.5
0
0
1.6
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
0
0
0
NC
NC
1.6
3.2
0.3
3.2
0.3
0.2
1.2
3.3
3.3
3.3
0
3.3
0
0.6
0.6
0.6
1.6
3.1
0.5
0
0
0
0
0
3.3
0
3.3
0
1.8
0.6
0.9
0
3.3
1.8
0
1.8
0
FROM/TO FLASH/SDRAM
PCBDH0
CEF196
CEF196
FROM/TO FLASH/SDRAM
FROM/TO
COMMON INTERFACE
COMMON INTERFACE
FROM/TO OFDM/TUNER
(1/3)
FROM/TO ASIC2
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