Read Sharp LL-T1620 (serv.man9) Service Manual online
PC-UM10M
LL-T1520-H/B LL-T1620-H/B CIRCUIT DIAGRAM
6 – 10
A
B
C
D
87
6
5
4
3
1
2
3
4
5
6
7
8
D
C
B
A
4/6
(1) MAIN PWB
(3216)
(3216)
Power & Connector
A[
18:
0]
5
D[
7:0
]
5
LCDON
5
LEDR1
1
LEDY
5
5
STBY
3
VOLUME
3
AUSEL
3
XPO
N
5
>
5
<
5
SEL
ECT
5
INPUT
5
MENU
5
NU1
5
NU2
5
3.
3V
3.
3V
3.
3V
3.
3V
3.
3V
V12
.5
12V
3.
3V
USB5V
LCD5V
12V
5V
5V
5V
3.
3V
D23
DAN20
2
U
1
2
3
TP2
55
FB3
0
FBM21
25HM330-
T
C145 47u
/25V
Q7
DTA11
4
EUA
3
2
1
TP2
87
CN14
R128
NU
Q10 NU
2
1
3
+
C117
100
u/
25V
C147
0.
1u
TP2
72
+
C141
NU
R154
NU
+
C137
470
u/
25V
TP2
58
C152
NU
TP2
8
1
TP2
90
R124
300
k
C149
470
00p
TP1
61
FB3
2
FBMJ4
516HS1
11
+
C116
470
u/
16V
C144
NU
TP2
80
CN8
LGY65
0
6
1
2
3
4
5
6
7
GND
S L
S R
R IN
R O
U
T
L IN
L OUT
D26
NU
TP2
61
C115
0.
1u
TP2
9
1
R63
BK2
125HS1
02
L3
NU
IC
2
5
NU
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
31
32
S/
S
F/
B OCL-
OCL+
GND
R/
C
VCC
N/
C
VBOOT
VGL
N/
C
VOUT
VOUT
VOUT
VOUT
N/
C
P.
GND
N/
C
VDD
VDD
VDD
VDD
N/
C
VGH
N/
C
VS
GND
3.
3/
5V
VREF
N/
C
AOUT
N/
C
AMP-
CN6
LR
1
2
3
4
R
GND
L
GND
TP2
47
C131
0.
1u
C139
0.
1u
R127
10k
TP2
82
C140
1u (2125)
C155
100
u/
25V
D27
DAN21
7
U
2
3
1
R143
4.
7k
TP2
64
D20
NU
TP2
86
IP
5
NU
+
C114
470
u/
16V
C153
NU
TP2
92
D28
DAN21
7
U
2
3
1
R129
NU
TP2
76
IC
201
TDA74
96L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
GND
GND
GND
IN
L
VAROUT_L
VOLUME
VARPUT_
R
NC
IN
R
SVR
STBY
MUTE
GND
OUTR
VS
VS
OUTL
GND
GND
GND
TP2
88
D29
DAN21
7
U
2
3
1
R62
BK2
125HS1
02
IC
2
2
uPC2
933
2
3
1
4
GND
OUT
IN
GND
R120
NU
C128
NU
TP2
48
TP2
51
R121
NU
R141
NU
D31
DAN21
7
U
2
3
1
IP
4
S1.
0
R148
NU
C138
100
u/
16V
R155
NU
D32
DAN21
7
U
2
3
1
R61
BK2
125HS1
02
IP
2
NU
CN5
5P
1
2
3
4
5
L
R
GND
5V
SEL
C154
NU
TP2
49
D30
DAN21
7
U
2
3
1
TP2
54
TP2
93
C42
0.
33u
TP2
73
TP2
77
TP1
58
TP1
4
R60
HS21
25HS10
2
FB3
3
FBMJ4
516HS1
11
ZD3
UDZS6.
8
CN7
KEY 9P
1
2
3
4
5
6
7
8
9
LEDY
LEDR
XPON
>
<
SEL
ECT
MENU
INPUT
GND
BR11
10k
*4
1
8
2
7
3
6
4
5
TP2
7
9
+
C133
100
u/
16V
C132
0.
1u
D22
N
U
1
2
3
C43
0.
33u
TP2
94
TP2
57
TP2
74
R112
360
R59
BK2
125HS1
02
C127
1u (2125)
IP
3
S0.
5
R86
1k
R157
13k
-F
R142
0 (2125)
IC
2
3
4
1
5
2
3
NC
OUT
CD
VDD
GND
IC
2
6
PQ20V
Z1U
2
4
5
3
1
ON/OFF
NU
GND
VOUT
VI
N
TP2
75
TP2
60
ZD4
PTZ1
3B
TP2
08
Q6
DTA11
4
EUA
3
2
1
R85
1k
Q8
NU
2
1
3
TP2
78
Q9
NU
2
1
3
C124
NU
BR38
10k
*4
8
7
6
5
R88
1k
IC
2
4
SI
-8050J
D
2
4
3
5
1
SW
VOS
GND
ON/OFF
VI
N
BR37
10k
*4
8
7
6
5
R87
1k
TP2
63
TP1
59
R156
1.
5k-
F
TP2
83
TP2
09
C157
100
u/
25V
D21
D1FH3
R25
BK2
125HS1
02
R147
R113
360
TP2
89
L2
CDRH127
-101
TP2
10
TP2
66
C156
0.
1u
TP2
84
C142
NU
C151
220
u/
25V
C143
NU
CN16
P/
S
1
2
3
4
5
6
7
8
12V
12V
12V
12V
GND
GND
GND
GND
R23
BK2
125HS1
02
TP2
8
5
TP2
52
C112
NU
TP2
69
BR12
10k
*4
1
8
2
7
3
6
4
5
R24
BK2
125HS1
02
D5
A4
A9
A7
D3
A16
A3
A15
D0
A1
D4
D2
A8
A2
A6
D6
A5
A17
A10
D7
A0
A14
A13
A12
A11
D1
A18
XMR
D
5
1,
5
IN
T
R
5
XMCS
5
TXD
1,
5
XMWR
5
3.
3V
3.
3V
5V
NU
1
20
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
GND
GND
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
XCS15
XCS14
R153
NU
CN15
NU
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
GND
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
VDD
VDD
VDD
XOE
XRESET
GND
GND
CN13
NU
1
2
3
4
5
6
7
8
9
10
11
12
GND
+5V
V3.
3
BOOT
A0
XMWR
BHE
RRST
NMI
RXD
TXD
GND
R145
10K
R151
NU
BR35
NU
1
8
2
7
3
6
4
5
R152
NU
R146
NU
R144
10k
1
2
3
4
1
2
3
4
BR36
NU
1
8
2
7
3
6
4
5
10k
RXD
XRESET
XRESET
S-
8094
0SN
21
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