DOWNLOAD Sharp SD-AT100 (serv.man6) Service Manual ↓ Size: 421.43 KB | Pages: 18 in PDF or view online for FREE

Model
SD-AT100 (serv.man6)
Pages
18
Size
421.43 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / Home Theatre / 5 - Voltage, Troubleshooting, Function IC (95-112)
File
sd-at100-sm6.pdf
Date

Sharp SD-AT100 (serv.man6) Service Manual ▷ View online

– 95 –
SD-AT100H
3.3 V
0 V
1.6 V
0.3 V
0.3 V
0 V
0.3 V
0.3 V
3.0 V
0.1 V
0.1 V
3.0 V
0.3 V
2.8 V
0 V
3.0 V
0.4 V
0.3 V
0.2 V
3.3 V
0 V
0 V
0 V
0 V
0 V
3.3 V
0.6 V
0 V
0.2 V
3.3 V
3.3 V
0.2 V
3.3 V
0.2 V
1.5 V
1.5 V
1.6 V
0 V
1.5 V
0.3 V
0.3 V
0.3 V
0.2 V
0.2 V
1.5 V
0.2 V
0 V
1.6 V
1.5 V
0 V
0 V
3.3 V
0.2 V
1.4 V
3.1 V
0 V
3.3 V
0.1 V
0 V
3.3 V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
39
38
37
36
35
34
33
32
31
PIN
NO. VOLTAGE
IC3504
3.3 V
0 V
0 V
3.3 V
3.3 V
3.3 V
1.5 V
0 V
0 V
0 V
0 V
3.3 V
3.3 V
0.3 V
0.3 V
3.3 V
0.2 V
0.2 V
0 V
0 V
0 V
0 V
0 V
0.3 V
0.3 V
0.3 V
0.3 V
–– V
3.3 V
3.3 V
0 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
0.9 V
0 V
3.9 V
0.9 V
0 V
0 V
0 V
––
––
––
––
––
0 V
0 V
3.3 V
0 V
0 V
3.3 V
3.2 V
0 V
3.1 V
3.3 V
0 V
PIN
NO. VOLTAGE
61
74
73
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
72
71
70
69
68
67
66
65
64
63
62
95
94
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
93
92
91
0 V
3.3 V
3.3 V
3.3 V
0 V
1.6 V
0.2 V
0.1 V
0.2 V
0 V
1.5 V
1.8 V
0.2 V
0 V
0.2 V
3.3 V
2.8 V
1.6 V
3.3 V
1.6 V
1.6 V
1.6 V
1.6 V
1.6 V
0 V
3.3 V
0.3 V
0.3 V
0.3 V
1.6 V
3.3 V
3.3 V
1.7 V
0.9 V
0 V
0 V
3.3 V
3.3 V
0 V
0 V
0.1 V
0.1 V
0.1 V
3.3 V
0.1 V
0.1 V
0.1 V
0.1 V
0 V
0.1 V
0 V
3.3 V
1.7 V
0.1 V
0 V
0 V
0 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
1.7 V
0 V
0 V
1.7 V
3.3 V
1.7 V
0 V
0.5 V
3.3 V
1.6 V
0 V
0 V
0.3 V
1.5 V
3.3 V
2.4 V
0.6 V
0 V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
39
38
37
36
35
34
33
32
31
PIN
NO. VOLTAGE
IC3601
2.5 V
0.5 V
3.3 V
1.2 V
0.5 V
0 V
0.2 V
1.6 V
3.3 V
0.7 V
1.7 V
1.6 V
3.6 V
3.3 V
3.0 V
1.6 V
0 V
3.3 V
0.3 V
0.3 V
0 V
0.3 V
0.3 V
2.2 V
0.3 V
0.9 V
0 V
1.2 V
0 V
0 V
0.6 V
3.3 V
0 V
0 V
0 V
1.7 V
1.5 V
0 V
1.6 V
1.5 V
1.7 V
3.3 V
0 V
3.3 V
0 V
3.3 V
1.6 V
0 V
0 V
3.3 V
1.6 V
0 V
1.6 V
2.8 V
3.3 V
0 V
0 V
0 V
1.6 V
3.3 V
1.6 V
1.7 V
0 V
0 V
0 V
0 V
0 V
3.3 V
3.3 V
1.6 V
3.3 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
PIN
NO. VOLTAGE
81
94
93
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
92
91
90
89
88
87
86
85
84
83
82
1.6 V
0 V
0 V
1.6 V
3.3 V
0 V
1.6 V
0 V
0 V
1.5   V
1.5 V
3.3 V
0 V
3.3 V
3.3 V
3.3 V
0 V
1.6 V
3.3 V
0 V
1.2 V
0 V
0 V
0 V
0 V
0 V
1.7 V
0 V
0 V
0 V
0 V
1.7 V
3.3 V
––
––
3.3 V
4.7 V
4.7 V
0 V
4.7 V
3.3 V
3.3 V
0.9 V
3.3 V
0.2 V
0 V
0 V
0.1 V
0 V
0 V
0 V
0 V
0 V
4.7 V
––
––
0 V
0 V
3.3 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
4.6 V
4.6 V
2.3 V
4.6 V
4.6 V
0 V
0 V
0 V
3.3 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
39
38
37
36
35
34
33
32
31
PIN
NO. VOLTAGE
IC3701
3.3 V
3.0 V
4.7 V
4.6 V
4.6 V
4.7 V
4.7 V
0 V
0 V
0.6 V
0 V
1.2 V
0 V
0 V
1.2 V
2.5 V
0 V
2.7 V
2.5 V
2.5 V
2.5 V
0 V
2.5 V
2.5 V
2.5 V
––
––
3.3 V
0 V
0 V
0 V
––
––
0 V
0.8 V
1.5 V
1.6 V
1.6 V
0 V
1.6 V
1.6 V
1.6 V
1.6 V
1.6 V
1.6 V
2.9 V
1.6 V
1.6 V
0.6 V
3.3 V
1.5 V
––
3.3 V
1.5 V
1.5 V
3.3 V
––
1.6 V
1.6 V
1.0 V
0 V
1.6 V
1.6 V
1.6 V
1.6 V
0 V
1.6 V
0 V
1.6 V
1.6 V
1.6 V
3.3 V
1.6 V
1.6 V
1.6 V
1.6 V
1.6 V
1.6 V
1.5 V
1.5 V
2.4 V
1.5 V
0 V
0 V
0 V
0 V
––
1.6 V
PIN
NO. VOLTAGE
89
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
99
98
97
96
95
94
93
92
91
90
 4.7 V
0 V
0 V
0.6 V
0 V
4.7 V
1.2 V
0 V
0 V
1.2 V
––
––
4.7 V
4.7 V
––
0 V
1.7 V
1.7 V
0 V
4.7 V
0 V
0 V
0 V
0 V
0 V
0 V
3.0 V
4.6 V
4.6 V
––
2.5 V
2.5 V
2.5 V
2.5 V
0 V
2.5 V
2.5 V
2.5 V
2.5 V
0 V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
40
39
38
37
36
35
34
33
32
31
PIN
NO. VOLTAGE
IC3720
3.3 V
0.2 V
1.5 V
1.5 V
1.6 V
3.3 V
1.5 V
0.3 V
0.3 V
0.3 V
––
––
3.3 V
3.1 V
––
1.6 V
0.3 V
0.3 V
0.3 V
3.3 V
0 V
0.3 V
3.0 V
0.3 V
0.3 V
3.0 V
0 V
3.1 V
3.1 V
––
0.2 V
0.2 V
1.5 V
0.2 V
0 V
1.6 V
1.5 V
0 V
0 V
0 V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
40
39
38
37
36
35
34
33
32
31
PIN
NO. VOLTAGE
IC3502
0 V
1.7 V
1.7 V
1.7 V
1.7 V
1.7 V
1.7 V
8.0 V
0 V
0 V
3.7 V
3.7 V
3.7 V
3.7 V
3.7 V
3.7 V
3.7 V
3.7 V
0 V
1.2 V
3.2 V
1.7 V
1.7 V
1.7 V
1.7 V
1.7 V
1.7 V
0 V
0 V
0 V
9
8
7
6
5
4
3
2
1
24
25
26
27
28
29
30
23
22
21
20
19
18
17
16
15
14
13
12
11
10
PIN
NO. VOLTAGE
IC3801
5 V
2.5 V
2.5 V
0 V
2.5 V
2.5 V
5 V
5 V
1.3 V
2.2 V
0 V
2.5 V
0 V
1.6 V
1.6 V
0 V
2.5 V
2.5 V
2.5 V
2.5 V
4.5 V
1.6 V
1.6 V
5 V
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
PIN
NO. VOLTAGE
ICA100
5 V
2.2 V
2.5 V
5 V
2.2 V
2.5 V
0 V
2.5 V
2.2 V
5 V
2.5 V
2.2 V
5 V
5 V
9
8
7
6
5
4
3
2
1
14
13
12
11
10
PIN
NO. VOLTAGE
ICA110
0 V
2.0 V
2.0 V
4.6 V
0 V
1.6 V
1.2 V
3.3 V
1.9 V
1.9 V
3.8 V
3.8 V
0 V
0 V
0 V
2.3 V
1.4 V
4.7 V
0 V
1.7 V
1.7 V
3.2 V
4.7 V
––
1.7 V
0.9 V
1.6 V
2.3 V
0 V
1.5 V
4.7 V
0 V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
32
31
PIN
NO. VOLTAGE
IC3301
1.6 V
0 V
1.6 V
4.7 V
––
––
0 V
1.6 V
2.5 V
4.6 V
1.5 V
1.5 V
0 V
4.6 V
2.0 V
2.0 V
2.0 V
2.0 V
4.7V
0.2 V
2.0 V
0 V
2.0 V
0 V
4.7 V
2.0 V
2.0 V
2.0 V
2.0 V
0 V
2.0 V
2.0 V
PIN
NO. VOLTAGE
33
46
45
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
44
43
42
41
40
39
38
37
36
35
34
64
63
3.3 V
1.7 V
1.6 V
0 V
0.5 V
0.4 V
3.3 V
2.6 V
1.4 V
0 V
5.6 V
0.6 V
3.3 V
0 V
3.3 V
3.3 V
3.3 V
3.3 V
0.2 V
1.5 V
0.5 V
0.1 V
0.1 V
0.1 V
3.3 V
9
8
7
6
5
4
3
2
1
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
PIN
NO. VOLTAGE
IC3602
0 V
0.1 V
0.1 V
0.1 V
0.1 V
0.1 V
0.1 V
1.8 V
3.3 V
1.7 V
0 V
0 V
3.3 V
1.7 V
1.6 V
0 V
0.5 V
0.3 V
3.3 V
2.4 V
1.2 V
0 V
0.1 V
0.7 V
0 V
PIN
NO. VOLTAGE
26
39
38
40
41
42
43
44
45
46
47
48
49
50
37
36
35
34
33
32
31
30
29
28
27
3.3 V
1.7 V
1.6 V
0 V
0.5 V
0.5 V
3.3 V
2.7 V
1.4 V
0 V
0.7 V
0.5 V
3.3 V
0 V
3.2 V
3.3 V
3.3 V
3.3 V
0.2 V
1.5 V
0.5 V
0.1 V
0.1 V
0.1 V
3.3 V
9
8
7
6
5
4
3
2
1
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
PIN
NO. VOLTAGE
IC3603
0 V
0.1 V
0.1 V
0.1 V
0.1 V
0.1 V
0.1 V
0 V
3.3 V
1.8 V
0 V
0 V
3.3 V
1.7 V
1.7 V
0 V
0.5 V
0.3 V
3.3 V
2.4 V
1.2 V
0 V
0.1 V
0.7 V
0 V
PIN
NO. VOLTAGE
26
39
38
40
41
42
43
44
45
46
47
48
49
50
37
36
35
34
33
32
31
30
29
28
27
3.3 V
0 V
1.6 V
0.3 V
0.3 V
0.3 V
0.3 V
3.0 V
0.1 V
0 V
3.3 V
0.2 V
1.5 V
0.2 V
0.2 V
1.6 V
1.5 V
0 V
0 V
3.3 V
3.3 V
0 V
3.3 V
3.3 V
0 V
3.3 V
3.3 V
3.3 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
3.3 V
0 V
3.3 V
1.6 V
0 V
4.7 V
0 V
2.3 V
4.7 V
4.7 V
0 V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
40
41
42
43
44
45
46
47
48
49
50
39
38
37
36
35
34
33
32
31
PIN
NO. VOLTAGE
IC3508
4.7 V
4.7 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
3.3 V
0 V
4.7 V
1.8 V
1.5 V
2.3 V
0.5 V
1.4 V
0.5 V
0.5 V
2.1 V
––
––
0 V
3.3 V
4.6 V
0 V
0 V
1.5 V
0 V
–– 
––
––
0 V
3.3 V
––
––
––
––
3.0 V
3.0 V
3.0 V
3.0 V
0 V
0 V
0 V
0 V
3.0 V
0 V
PIN
NO. VOLTAGE
51
64
63
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
62
61
60
59
58
57
56
55
54
53
52
85
84
86
87
88
89
90
91
92
93
94
95
96
97
98
99
83
82
81
100
VOLTAGE
SD-AT100H
– 96 –
 The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,
indicates AM
indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
(  ) indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
 Parts marked with “       ” (                          ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
NOTES ON SCHEMATIC DIAGRAM
 Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
 Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means pico-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic
capacitor, the expression “capacitance/withstand voltage”
is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
 Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
REF. NO
DESCRIPTION
POSITION
POSITION
REF. NO
DESCRIPTION
SW1
OPEN/CLOSE
ON—OFF
SW4
PICKUP IN
ON—OFF
SWE01
ON/STAND-BY
ON—OFF
SWE02
PLAY
ON—OFF
SWE03
STOP
ON—OFF
SWE04
FUNCTION
ON—OFF
SWE05
BAND
ON—OFF
TYPES OF TRANSISTOR AND LED
KRA102 S
KRA104 S
KRA106 S
KRA107 S
KRC104 S
KRC107 S
KTA1504 Y
KTA1504 GR
KTC2875 B
KTC3875 GR
KTC4375 Y
2SA1955 A
2SC2412 KR
2SC3052 F
2SK208
2SK1847
B
(3)
E
(1)
C
(2)
TOP
VIEW
1SS361
TOP VIEW
TOP VIEW
KRC107 M
KRC111 S
KTA1023 Y
KTA1266 GR
KTA1273 Y
KTC3199 GR
2SA2012
2SB1424 R
2SB1142 S
2SC5565
2SC3852 A
VIEW
FRONT
KTD2058 Y
2SD1858 R2
VIEW
FRONT
E   C   B
B   C   E
VIEW
FRONT
E   C   B
(S)(G)(D)
(1)(2)(3)
(1) (2) (3)
DS1N404S
KDS160
DAP202K
TOP VIEW
FRONT
VIEW
31URT21
3105VGT
3105T1
SELU2EC
SWE06
OPEN/CLOSE
ON—OFF
SWE07
SKIP DOWN
ON—OFF
SWE08
SKIP UP
ON—OFF
SWE09
VOLUME DOWN
ON—OFF
SWE10
VOLUME UP
ON—OFF
SWV01
DVD VIDEO OUT SELECTOR
ON—OFF
– 97 –
SD-AT100H
WAVEFORMS OF 1-BIT CIRCUIT
T
2
1
2.00V/div
500ns/div
194.545465
µ
s
520mV
2.00V/div
AD IC Output
+ Side
- Side
5V
Amplitude
from 0 to 5 V
1
2
T
10.0V/div
500ns/div
194.545465
µ
s
-12.3V
10.0V/div
+SIDE
+FETOUT
- SIDE
Waveforms before low-pass filters at both 
ends of the speaker
H-bridge may be considered as BTL. 
However, here and at the gate drive, dead 
time is not observed; since bootstrap 
operates based on output, DEAD TIME 
part is in floating condition. The waveform 
on the HI GH side shows that only the 
booted voltage lowers. 
2
1
11
12
2
1
2.00V/div
500ns/div
194.545465
µ
s
-12.30V
2.00V/div
AD IC NF IN
In partial pressure OUT, 4 to 7 V amplitude 
of GND reference is observed.
In IC of 75 kohms, the reference is 2.5 V 
because of VREF. Due to imaginary GND 
of operational amplifier inside IC, the 
waveform cannot be monitored.
This waveform is partial pressure OUT.
3
4
T
2.00V/div
50.0ns/div
0.0s
-12.30V
2.00V/div
LEVEL SHIFT OUT
DEAD TIME
ZOOM UP
Dead time is generated by level 
shift input.  
Leading edge is delayed at CR, 
passing R at DI.
Set value: 20 -25 nsec
5
6
SD-AT100H
– 98 –
WAVEFORMS OF DVD CIRCUIT
1
2
3
2
4
5
6
6
5
4
2
3
2
3
2
Page of 18
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Sharp SD-AT100 (serv.man6) Service Manual ▷ Download

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  • Here you can View online or download the Service Manual for the Sharp SD-AT100 (serv.man6) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp SD-AT100 (serv.man6) Home Theatre. Information contained in Sharp SD-AT100 (serv.man6) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.