Sharp LC-60LE857E (serv.man2) Service Manual ▷ View online
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
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LCD control Unit (Side-B)
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
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LCD control Unit
(Chip Parts Side-B)
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
2 – 1
LC60LE855E
Service Manual
CHAPTER 2.
SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIAGRAM
1. VOLTAGE MEASUREMENT CONDITION:
1) The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 220-240 V. Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.
2. INDICATION OF RESISTOR & CAPACITOR:
RESISTOR
1) The unit of resistance "
Ω" is omitted.
(K=k
Ω=1000Ω, M=MΩ).
2) All resistors are ± 5%, unless otherwise noted.
(K= ± 10%, F= ± 1%, D= ± 0.5%)
3) All resistors are 1/16W, unless otherwise noted.
CAPACITOR
1) All capacitors are
µF, unless otherwise noted.
(P=pF=
µµF).
2) All capacitors are 50V, unless otherwise noted.
CAUTION:
This circuit diagram is original one, therefore there may be a slight
difference from yours.
This circuit diagram is original one, therefore there may be a slight
difference from yours.
SAFETY NOTES:
1) DISCONNECT THE AC PLUG FROM THE AC OUTLET
1) DISCONNECT THE AC PLUG FROM THE AC OUTLET
BEFORE REPLACING PARTS.
2) SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS
OPERATING.
OPERATING.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH "
PARTS MARKED WITH "
" (
) ARE IMPORTANT
FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO
REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAIN-
TAINING THE SAFETY AND PERFORMANCE OF THE SET.
REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAIN-
TAINING THE SAFETY AND PERFORMANCE OF THE SET.
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
2 – 2
[2] SCHEMATIC DIAGRAM
1. MAIN Unit
1
2
3
10
9
7
6
5
4
8
J
A
B
C
D
E
F
G
H
I
13
11
19
18
16
15
14
12
17
T 2_ TS _ D 1
T UN E R _C VB S_ BY PA S S
N _T UN _R ST
T 2_ TS _ D 2
T2
_
D
5
T2
_
D
6
T 2_ TS _S YN C_ HS S
T 2_ D 3
T 2_ TS _ D 7
T 2_ D 2
N _T UN _S AT _R ST
T 2_ D 5
N _T U_ R E S E T
T 2_ TS _ D 5
T 2_ D 7
T 2_ TS _ D 6
T2
_
D
7
T2
_
S
Y
N
C
T 2_ TS _ D 3
S IF
T 2_ D 1
T2
_
D
3
T 2_ TS _V AL _H S S
T 2_ D 4
T2
_
D
4
T2
_
D
1
T 2_ CL K
T2
_
D
2
T 2_ TS _ D 0
T 2_ D 0
T2
_
C
L
K
T 2_ S Y NC
T2
_
D
0
T U_ CV BS
T 2_ VA L
T2
_
V
A
L
T 2_ TS _C LK
T 2_ D 6
N _T UN _R ST
T 2_ TS _ D 4
S CL 0_400k
T U/T 2_S DA
T U_ S IF
TU
_
S
C
LK
N_
T
U
_
R
E
S
E
T
TU
_
S
D
A
TA
T
2_T
S
_D1
TU
/T
2
_
S
D
A
TU
_
_
S
IF
T
2_T
S
_D3
T2
_
T
S
_E
R
R
CV
B
S
T
2_T
S
_
D5
T2
_
T
S
_
D
6
D__I
F
-
T
2_T
S
_
D7
T2
_
T
S
_
D
4
D__I
F
+
N
_T
2_
R
ESET
T2
_
T
S
_
D
2
IF
_
_
_
A
G
C
T
2_
T
S_
SY
N
C
_
H
SS
T2
_
T
S
_
D
0
TU
/T
2
_
S
C
L
T2
_
T
S
_V
A
L
_H
S
S
T2
_
T
S
_C
LK
T UN E R _C VB S
C P U_ D EMOD _ TS CL K
C P U_ D EMOD _ TS S YN C
C P U_ D EMOD _ TS VA L
C P U_ D EMOD _ TS DA TA 0
C P U_ D EMOD _ TS DA TA 1
C P U_ D EMOD _ TS DA TA 2
C P U_ D EMOD _ TS DA TA 3
C P U_ D EMOD _ TS DA TA 4
C P U_ D EMOD _ TS DA TA 5
C P U_ D EMOD _ TS DA TA 6
C P U_ D EMOD _ TS DA TA 7
T UN _ GA IN _S W
TU
_
G
A
IN
_S
W
S DA 0_400k
TE
+
1
.2
V
TE
+
3
.3
V
T E+3. 3V
IF+3. 3V
IF
+
3
.3
V
AT
+
5
V
T U_ _ SIF
C VB S
IF
+
1
.8
V
S DA 2_ _ TU NE R
T U_ S D AT A
S CL 2_ _ TU NE R
T U_ S C LK
S DA 2_ _ TU NE R
S CL 2_ _ TU NE R
A NT +5V_ S W
T U/T 2_S CL
N _T UN _T 2_ R S T
U R +13V
S DA 0_400k
S CL 0_400k
N _T UN _T 2_ R S T
D +3.3V
N _T 2_ R E S E T
*R 1145
22
V RK
1
2
3
4
5
6
7
8
*R 1118
10K
*R 1139
22
V RK
1
2
3
4
5
6
7
8
U R +13V
010
*C 1105
1000P
*R 1135
0
C P U_ D EMOD _ TS DA TA 5
004
R 1191H50
1
V out
2
G N D
3
O N
4
E CO
5
V in
*C 1124
0.1u
*C 1161
4.7u
10V
K ZA761WJ QZ
*R 1140
22
V RK
1
2
3
4
5
6
7
8
*C 1106
10P
*Q 1102
2S C 3928AR
*C 1196
4.7u
10V
K ZA761WJ QZ
4.7u
10V
K ZA761WJ QZ
C P U_ D EMOD _ TS DA TA 2
004
*C 1118
10u
16V
16V
K ZA510WJ PZ
C P U_ D EMOD _T SC LK
004
C P U_ D EMOD _T SD AT A7
004
C P U_ D EMOD _T SS YN C
004
*C 1138
0.1u
K
10V
10uH
*L 1107
V P
*R 1113
10K
S CL 0_ 400k
004
3479A18P
1
O N
2
G N D
3
N .C
4
V in
5
V out
*C 1141
10u
16V
K ZA510WJ PZ
*R 1188
0
V RK
1
2
3
4
5
6
7
8
T P1112
S CL 2_ TU NE R
004
*R 1190
0
V RK
1
2
3
4
5
6
7
8
T UN _ GA IN _S W
004
C P U_ D EMOD _T SV AL
004
D +3.3V
010
*R 1101
1K
C P U_ D EMOD _T SD AT A6
004
*C 1108
10P
*R 1117
10K
S DA 2_ TU NE R
004
*R 1176
330
330
C P U_ D EMOD _T SD AT A0
004
*R 1121
390
10uH
*L 1105
V P
*C 1179
0.01u
25V
*C 1128
10u
16V
K ZA510WJ PZ
S IF
004
N _T UN _R ST
004
T UN E R _C VB S_ BY PA S S
002
*C 1133
0.1u
10V
*R 1189
0
V RK
1
2
3
4
5
6
7
8
*Q 1106
IS A1530AC
S DA 0_400k
004
D +5V
010
*C 1127
10u
16V
K ZA510WJ PZ
T P1110
*R 1119
10
*R 1179
0
*F B 1103
A192WJ
*C 1180
0.01u
25V
*C 1110
0.01u
25V
25V
*C 1195
4.7u
10V
10V
K ZA761WJ QZ
C P U_ D EMOD _T SD AT A3
004
T UN E R _C VB S
004
*R 1177
100
*R 1112
10K
*C 1145
10u
16V
K ZA510WJ PZ
C P U_ D EMOD _T SD AT A1
004
*R 1164
0
*C 1185
0.01u
25V
0.01u
25V
C P U_ D EMOD _T SD AT A4
004
*R 1178
0
*C 1129
10u
16V
16V
K ZA510WJ PZ
N _T UN _S AT _R ST
004
*C 1202
1u
25V
K ZA621WJ QZ
M+2.3V
010
C PU _A NT _P OW
004
*R 1218
47
47
*R 1219
0
*R 1130
0
*R 1141
0
*T U1105
A A088WJ QZ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
13A1C12E
1
V out
2
G N D
3
O N
4
N C
5
G N D
6
V in
*F B 1109
0241TA
0241TA
*F B 1110
0241TA
0241TA
*F B 1112
0241TA
0241TA
*F B 1111
0241TA
0241TA
*R 1237
0
*C 1211
0.1u
*R 1131
100K
N _T UN _T 2_ R S T
004
*C 1193
0.01u
25V
0.01u
25V
T O MAIN 4(CP U)
T O MAIN 4(CP U)
T O MAIN 2(TAR MIN AL )
T O MAIN 7(UC OM)
T O MAIN10(P OW ER )
T O MAIN 4(CP U)
MAIN1(T UN ER )
N e a r Tuner
N e a r Tuner
N e a r Tuner
N e a r Tuner
DUN TK F953WE **
*IC 1104
*IC 1109
E U
T 2-NIM
T 2-NIM
*IC 1102
N e a r SO C
3.2
9.0
3.8
3.3
0
2.6
MAIN Unit-1 (DKEYDG216FM51/53)
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