Read Sharp LL-T1815 (serv.man8) Service Manual online
PC-UM10M
LL-T1815-H/B CIRCUIT DIAGRAM
7 – 7
0V:MAX
H : ON
L : OFF
Z : OFF
ON : L
OFF : H
ON : H
OFF : L
ON : H
OFF : L
H : ON
L : OFF
Z : OFF
ON : H
OFF : L
XMAIN_OUT
AU12V_I
AU12V_I
BRTVR
5
BKLT_EN
5
XMAIN_OUT
5
LCD_CTL
5
ADO_CTL
5
PGND
AGND
DGND
PWGND
DGND
AVCC
AGND
DVCC
DGND
DGND
DGND
DGND
5V
DV33
MVCC
PWGND
PWGND
PWGND
PWGND
PWGND
V12_I
V12
AU12V
V12
DGND
V12_I
DGND
PWGND
PWGND
LCD12V
DGND
V12
DV25
PWGND
PWGND
R236
10kJ
D16
DAN202U
12
3
LD59
C164
47u/25V(WT)
+
C178
470uF/16V(UX)
R244
2.2kF
FB20
BLM41PG600SN1
C170
0.1uF
LD65
IC27
PQ1CZ21H2ZP
1
2
3
4
5
VIN
VOUT
COM
OADJ
ON/OFF
C176
0.1uF
+
C175
150uF/25V(WT)
R238
18kJ
R241
1.0kF
C183
0.1uF
IC25
PQ1CZ21H2ZP
1
2
3
4
5
VIN
VOUT
COM
OADJ
ON/OFF
FB22
BLM41PG600SN1
+
C185
150uF/25V(WT)
C173
0.1uF
CN7
B12B-PH-SM3-T
B
T
1
2
3
4
5
6
7
8
9
10
11
12
+
C169
2.2uF/35V(WT)
C180
2200pF(B)
LD56
R242
3.6kF
C168
0.1uF
C166
150uF/25V(WT)
LD54
R235
18kJ
Q11
HAT1025R
1
2
3
45
6
7
8
S
G
S
GD
D
D
D
R272
0J
D20
PTZ6.8B
F1
S1.8
R240
3.0kF
LD58
L7
CDRH73/10uH
D23
SFPB76
R243
1.0kF
C187
0.1uF
D21
SFPB76
LD63
Q13
DTC143EE
23
1
LD61
L8
CDRH127/220uH
L9
CDRH127/220uH
C186
0.1uF
FB21
BLM41PG600SN1
LD64
LD53
R231
7.87kF
R245
1.0kF
IC24
PQ20WZ11
2
4
5
3
1
ON/OFF
OADJ
GND
VOUT
VIN
L6
CDRH73/10uH
D17
PTZ13B
D22
PTZ3.6B
+
C177
47uF/16V(WT)
C184
2200pF(B)
+
C172
470uF/16V(UX)
LD60
IC26
PQ1CZ21H2ZP
1
2
3
4
5
VIN
VOUT
COM
OADJ
ON/OFF
FB18
BLM41PG600SN1
R232
2.2kF
C179
0.1uF
C165
150uF/25V(WT)
L5
CDRH127/220uH
+
C171
47uF/16V(WT)
R239
10kJ
FB19
BLM41PG600SN1
Q12
DTC143EE
23
1
Q15
HAT1025R
1
2
3
45
6
7
8
S
G
S
GD
D
D
D
R271
EMPTY
C167
0.1uF
Q14
DTC143EE
23
1
LD57
LD62
D24
PTZ3.6B
C174
2200pF(B)
+
C182
470uF/16V(UX)
D18
UDZS5.6B
R261
EMPTY
LD55
CN8
B7B-PH-SM3-T
B
T
1
2
3
4
5
6
7
D19
SFPB76
+
C181
150uF/25V(WT)
R237
4.7kJ
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
7/7
