Read Sharp LB-1085 Service Manual online
LB-1085
WIRING & BLOCK DIAGRAM
8 – 3
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
3.
PO
WER SYSTEM BLOCK DIA
GRAM
B08-PASK-1N (LF)(SN)B
0
8
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
B08B-PASK-1N (LF)(SN)B
0
8
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
UR15V
1
UR15V
UR15V
2
UR15V
UR15V
3
UR15V
UR15V
4
UR15V
GND
5
GND
GND
6
GND
GND
7
GND
GND
8
1
2
3
4
5
6
7
8
GND
B11B-PASK-1N (LF)(SN)B
1
1
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
B11B-PASK-1N (LF)(SN) B
1
1
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
B12B-PASK-1N (LF)(SN)B
1
2
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
LNB
1
1
L
NB
1L
N
B
270mA
BS antenna power
LNB_POW
2
2
LNB_POW
2
LNB_POW
BS antenna power ON/OFF control
B6B-PASK-1N (LF)(SN)B
6
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
LNB_CONT
3
3
LNB_CONT
3
L
NB_CONT
15V/11V switching control
PS_ON
4
4
PS_ON
4
PS_ON
Relay ON/OFF control
1
PS_ON
AC_DET
5
5
AC_DET
5
AC_DET
Instantaneous fail detect
2
AC_DET
REM02
6
6
REM02
6
PNL_POW
PNL12V ON/OFF control
3
GND
GND
7
7
GND
7
GND
GND
4
PNL_POW
BU5V
8
8
BU5V
8
BU5V
300mA
Backup 5V
5
BU5V
BU5V
9
9
BU5V
9
GND
GND
6
GND
GND
10
10
GND
10
GND
GND
GND
11
11
GND
11
UR15V
3500mA
12
UR15V
B10B-PASK-1N (LF)(SN)B
1
0
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
B10B-PASK-1N (LF)(SN)B
1
0
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
UR12V
11
UR12V
UR12V
2
2
UR12V
B12B-PASK-1N (LF)(SN)B
1
2
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
UR12V
3
3
UR12V
UR12V
4
4
UR12V
1
PLN12V
PLN12V
For signals, 15V
For signals, 15V
B12B-PASK-1N (LF)(SN)B
1
2
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
UR12V
5
5
UR12V
2
PNL12V
4500mA
PNL12V
GND
6
6
GND
3
GND
GND
1-8
GND
7
7
GND
4
GND
GND
9
PNL12V
1-5
PNL12V
1-5
PNL12V
GND
8
8
GND
5
GND
GND
10
PNL12V
6-10
GND
6-10
GND
GND
9
9
GND
11
GND
11-20
NC
11-20
NC
GND
10
10
GND
12
GND
B13B-PASK-1N (LF)(SN)B
1
3
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
1-8
NC
9
PNL12V
4500mA
PNL12V
B12B-PASK-1N (LF)(SN)B
1
2
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
10
PNL12V
PNL12V
11
GND
GND
1-8
NC
12
GND
GND
9
PNL12V
13
GND
GND
10
PNL12V
B3P4-VH (LF)(SN)B
3
P
4
-V
H
(
L
F
)(
S
N
)
11
GND
12
GND
1
AC IN
13
GND
2
3
NC
4
AC IN
BM20B-SHLDS-G-TFTB
M
2
0
B
-S
H
L
D
S
-G
-T
F
T
BM20B-SHLDS-G-TFTB
M
2
0
B
-S
H
L
D
S
-G
-T
F
T
UR10V
1
1-5
PNL12V
500mA
PNL12V
1-5
PNL12V
B03B-PASK-1N (LF)(SN)B
0
3
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
UR10V
2
6-10
GND
GND
6-10
GND
GND
3
11-20
NC
11-20
NC
1
PS_ON
GND
4
2
GND
UR6V
5
3
AC_DET
GND
6
B03B-PASK-1N (LF)(SN)B
0
3
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
BM20B-SHLDS-G-TFTB
M
2
0
B
-S
H
L
D
S
-G
-T
F
T
BM20B-SHLDS-G-TFTB
M
2
0
B
-S
H
L
D
S
-G
-T
F
T
1
PS_ON
1-5
PNL12V
500mA
PNL12V
1-5
PNL12V
2
GND
6-10
GND
GND
6-10
GND
3
AC_DET
11-20
NC
11-20
N
C
4
AC_DET
B06B-PASK-1N (LF)(SN)B
0
6
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
B3P4-VH (LF)(SN)B
3
P
4
-V
H
(
L
F
)(
S
N
)
1
GND
2
UR15V
500mA
1
AC_in
3
S
-GND
2
-
B2P3-VH (LF)(SN)B
2
P
3
-V
H
(
L
F
)(
S
N
)
4
S
-GND
12
UR15V
3
NC
5
S15V
2500mA
11
UR15V
4
AC_in
INV380
V
1
6
S15V
For audio, 15V
For signals, 15V
GND
For audio, 15V
For audio, GND
For audio, GND
10
GND
NC
2
9
GND
GND
3
8
UR10V
B03B-PASK-1N (LF)(SN)B
0
3
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
7
UR10V
6
GND
1
PS_ON
B04B-PASK-1N (LF)(SN)B
0
4
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
5
GND
2
GND
4
PNL12V
3
AC_DET
INV12
V
1
3
PNL12V
INV12V
2
2
GND
GND
3
1
UR6V
GND
4
B3P4-VH (LF)(SN)B
3
P
4
-V
H
(
L
F
)(
S
N
)
1
AC_in
2
-
B2P3-VH (LF)(SN)B
2
P
3
-V
H
(
L
F
)(
S
N
)
3
NC
4
AC_in
INV380
V
1
NC
2
GND
3
B03B-PASK-1N (LF)(SN)B
0
3
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
1
PS_ON
B04B-PASK-1N (LF)(SN)B
0
4
B
-P
A
S
K
-1
N
(
L
F
)(
S
N
)
2
GND
3
AC_DET
INV12
V
1
INV12V
2
GND
3
GND
4
SIGNAL POWER UNITS
IG
N
A
L
P
O
W
E
R
U
N
IT
CONNECTION UNITC
O
N
N
E
C
T
IO
N
U
N
IT
PFCP
F
C
15V1
5
V
ConverterC
o
n
v
e
rt
e
r
12V1
2
V
ConverterC
o
n
v
e
rt
e
r
Buck UpB
u
c
k
U
p
ConverterC
o
n
v
e
rt
e
r
LNBL
N
B
DC/DCD
C
/D
C
5V5
V
DC/DCD
C
/D
C
AC_DETA
C
_
D
E
T
CircuitC
ir
c
u
it
HCFL POWER UNITH
C
F
L
P
O
W
E
R
U
N
IT
HCFL POWER UNITH
C
F
L
P
O
W
E
R
U
N
IT
AC_DETA
C
_
D
E
T
CircuitC
ir
c
u
it
PFCP
F
C
12V1
2
V
ConverterC
o
n
v
e
rt
e
r
AC_DETA
C
_
D
E
T
CircuitC
ir
c
u
it
PFCP
F
C
12V1
2
V
ConverterC
o
n
v
e
rt
e
r
AC200VA
C
2
0
0
V
AC240VA
C
2
4
0
V
LINE
FILTER
Double-pole
switch
LINE
FILTER
LINE
FILTER
LINE
FILTER
LINE
FILTER
LINE
FILTER
AC INA
C
I
N
UNITU
N
IT
AND
AND
EMCE
M
C
FilterF
ilt
e
r
EMCE
M
C
FilterF
ilt
e
r
EMCE
M
C
FilterF
ilt
e
r
10V1
0
V
DC/DCD
C
/D
C
6V6
V
DC/DCD
C
/D
C
TV CHASSIS
LCD MODULE CHASSIS
MAIN PWB
Connector display [LP]
Connector display [PD]
Connector display [PL]
Connector display [PG]
Connector display [PG]
Connector display [PL]
Connector display [PD]
Connector display [PE]
Connector display [PS]
Connector display [PS]
Connector display [PH]
For control
Connector display [LP]
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Max. load
Max. load
Max. load
Max. load
Application
Application
Application
Application
Pin No.
Signal name
Max. load
Application
Pin No.
Signal name
Max. load
Application
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
T-CON PWB
LCD SUB PWB
MAIN PWB
T-CON SUB PWB
(Upper)
T-CON SUB PWB
(Lower)
MAIN PWB
MAIN PWB
T-CON PWB
Connector display [PX]
Connector display [PC]
Connector display [LA]
Connector display [LA]
Connector display [LB]
Connector display [LB]
Connector display [PC]
Connector display [PB]
Connector display [PA]
Connector display [PB]
Connector display [PA]
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Connector display [PP]
Connector display [PP]
Connector display [ACH]
Connector display [ACH]
Connector display [PH2]
Connector display [PH1]
Connector display [ACM]
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
T-CON SUB (UPPER) PWB
T-CON SUB (UNDER) PWB
To Inverter T
o
I
n
v
e
rt
e
r
UnitU
n
it
To Inverter T
o
I
n
v
e
rt
e
r
UnitU
n
it
Double-pole
Switch
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