Zenith XBS344 Series Service Manual page 85

Combo home theater system
Table of Contents

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MODE
MODE
MODE
STOP
PLAY
STOP
PLAY
PIN NO.
PIN NO.
PIN NO.
110
0.19
1.74
165
0
3.27
111
3.3
3.29
166
0
0.5
112
0.18
1.62
167
0
0
113
2.98
2.38
168
0
0.53
114
3.02
1.48
169
0
3.27
115
0
0
170
0
0.59
116
2.86
3.01
171
0
0
117
2.86
2.54
172
3.01
0.72
118
0
0
173
0
0.72
119
0
2.5
174
0
0
120
2.55
2.51
175
0
2.73
121
3.03
1.4
176
0
3.13
122
3.03
1.4
177
0
3.13
123
0.22
1.39
178
0
3.25
124
0.22
0.34
179
0
0
125
0
0
180
0
0
126
3.31
0.98
181
2.04
2.64
127
0.26
1.64
182
0
2.52
128
3.31
1.53
183
0
0
129
3.3
1.15
184
0
0.09
130
3.3
3.29
185
0
3.26
131
3.31
1.49
186
_
_
132
0.16
0.89
187
0
0.08
133
3.3
0
188
0
0
134
3.3
1.07
189
0
0
135
0
0
190
0
0
136
2.86
2.53
191
0.23
0
137
2.86
2.53
192
0
3.29
138
0.07
0.86
193
0
0
139
0.09
0.99
194
0
0
140
0.07
2.51
195
0
0
141
0.07
0.94
196
0
0
142
0.09
1.13
197
0
1.63
143
0.07
1.19
198
0
0
144
0.09
1.07
199
0
0
145
0.09
0
200
0
2.15
146
0
1.51
201
0
1.44
147
0.09
1.25
202
0
1.44
148
0.07
1.64
203
0
1.43
149
0.06
0
204
0
1.43
150
0
1.65
205
0
1.42
151
0.07
3.29
206
0
2.1
152
0
1.6
207
0
2.07
153
0
1.64
208
0
1.41
154
0
1.44
209
0
1.52
155
0
0
210
0
1.43
156
0
0
211
0
2.81
157
0
1.63
212
0
3.28
158
0
3.29
213
0
0.12
159
0
3.27
214
0
0.12
160
0
1.27
215
1.02
1.43
161
0
1.27
216
0
1.43
IC502(SDRAM)
162
0
2.35
163
0
0
1
3.27
3.28
164
0
0.73
2
1.18
1.26
MODE
MODE
STOP
PLAY
STOP
PLAY
PIN NO.
PIN NO.
3
1.1
1.52
7
0
0
3
4
0
0
8
3.28
3.29
4
IC507(MM1623)
5
0.66
1.07
5
6
0.85
1.12
1
5.09
5.08
6
7
3.27
3.28
2
2.43
2.42
7
8
0.51
0.97
3
5.09
5.08
8
9
3.06
0
4
1.45
0
9
10
0
0
5
0
0
10
11
0.06
0.98
6
1.45
1.69
11
12
3.18
0.87
7
0
0
12
13
3.27
3.28
8
2.47
2.46
13
14
2.94
2.56
9
0
0
14
15
0.47
0.42
10
1.14
1.76
15
16
2.93
3.01
11
0
0
16
17
3.21
3.22
12
2.42
2.42
17
18
2.87
2.95
13
5.09
5.08
18
19
0.15
1.32
14
2.43
2.42
19
20
0
0.05
15
0
0
20
21
3.09
1.32
16
2.49
2.47
21
22
3.09
1.32
17
0
0
22
23
3.09
1.32
18
2.48
2.47
23
24
3.09
1.33
19
0
0
24
25
3.27
3.29
20
1.18
2.3
25
26
0
0
21
1.76
2.17
26
27
0.15
1.36
22
0
0
27
28
1.84
2.36
23
1.76
2.24
28
29
1
2.32
24
0
0
29
30
0.54
1.75
25
0
0
30
31
0.06
0.06
26
0
0
31
32
0.05
0.06
27
0.06
0.05
32
33
0
0
28
5.09
0
33
IC510(BUFFER)
34
0.73
1.26
34
35
1.48
1.55
1
0
0
35
36
2.91
2.53
2
2.59
2.55
36
37
0.07
0
3
0
0
37
38
3.27
3.28
4
2.59
2.56
38
39
1.06
1.05
5
0
0
39
40
0.47
0.98
6
3.24
3.23
40
41
0
0
7
0
0
41
42
0
0.6
8
0.14
0.08
42
43
1.12
1.24
9
0
0
43
44
3.27
3.28
10
0
0
44
45
1.21
0.99
11
0.15
0.09
45
46
1.31
1.34
12
0
0
46
47
0
0
13
0.15
0.08
47
48
1.43
1.44
14
5.19
5.19
48
49
0.88
1.01
15
0.14
0.09
50
0
0
16
5.25
5.24
1
IC505(EEPROM)
17
0.15
0.08
2
1
0
0
18
5.23
5.23
3
2
0
0
19
0
0
4
3
0
0
20
5.25
5.25
5
IC5A1(FLASH)
4
0
0
6
5
3.28
3.29
1
0.08
0.16
7
6
3.28
3.29
2
1.82
0.45
8
MODE
MODE
STOP
PLAY
STOP
PLAY
PIN NO.
PIN NO.
2.84
0
9
15.62
15.62
27
2.83
3.12
10
15.61
15.61
28
0.69
0.26
11
15.61
15.61
29
1.72
0.25
12
31.59
31.59
30
1.92
0.9
13
0
0
31
1.7
1.45
14
0
0
32
0
0
15
31.59
31.59
33
0
0
16
15.61
15.61
34
3.27
3.29
17
15.61
15.61
35
3.56
3.55
18
NC
NC
36
3.29
3.29
19
0
0
0
0
20
0.02
0.02
1
0.23
0.06
21
5.02
5.02
2
0
0
22
5.02
5.02
3
0
0
23
3.25
3.24
4
0
0.87
24
0
0
5
1.98
2.64
25
3.15
3.15
6
2.28
2.18
26
3.15
3.15
7
2.13
1.96
27
3.15
3.15
8
1.67
2.01
28
3.24
3.23
9
1.99
1.72
29
1.58
1.57
10
1.93
2.19
30
1.58
1.57
11
2.05
1.94
31
1.58
1.57
12
0
0
32
1.58
1.57
13
0
0
33
26.32
26.31
14
0
0
34
26.32
26.31
15
1.49
2.03
35
31.58
31.57
16
0.16
1.07
36
31.58
31.57
17
IC730
1.96
1.25
18
0.16
1.1
1
0
0
19
0.99
2.2
2
15.6
15.6
20
1.17
1.07
3
15.6
15.6
21
0.79
1.82
4
31.59
31.58
22
0.15
1.07
5
0
0
23
3.29
3.3
6
0
0
24
1.93
3.09
7
31.59
31.58
25
0.16
1.07
8
15.62
15.62
26
1.5
2.2
9
15.62
15.62
27
0.16
1.07
10
15.61
15.61
28
1.21
2.64
11
15.61
15.61
29
0.16
1.08
12
31.59
31.59
30
1.64
1.48
13
0
0
31
2.05
2.06
14
0
0
32
0
0
15
31.59
31.59
33
0
0
16
15.61
15.61
34
0.07
0.13
17
15.61
15.61
35
IC710
18
NC
NC
36
0
0
19
0
0
15.6
15.6
20
0.02
0.02
15.6
15.6
21
5.02
5.02
3.59
31.58
22
5.02
5.02
0
0
23
3.24
3.23
0
0
24
0
0
31.59
31.58
25
3.15
3.15
15.62
15.62
26
3.15
3.15
3-97
3-98
STOP
STOP
PLAY
SECTION
NO
B
E
C
B
3.15
3.15
DVD&AMP
Q401
5.2
5.19
0
5.2
Q402
0
0
0
0
3.24
3.23
Q403
5.08
0
0
4.93
1.58
1.57
Q404
5.01
5.08
0
4.96
Q405
5.01
5.08
0.44
3.32
1.58
1.57
Q407
0
0
5.2
0
1.58
1.57
Q408
2.85
0
0
2.83
Q410
5.2
5.2
0
0
1.58
1.57
Q411
0
0
5.2
0
26.3
26.3
26.3
26.3
31.58
31.57
31.58
31.57
IC750
0
0
15.6
15.6
15.6
15.6
31.59
31.58
0
0
0
0
31.59
31.58
15.62
15.62
15.62
15.62
15.61
15.61
15.61
15.61
31.59
31.59
0
0
0
0
31.59
31.59
15.61
15.61
15.61
15.61
NC
NC
0
0
0.03
0.03
5.06
5.06
5.06
5.06
3.24
3.23
0
0
3.15
3.15
3.15
3.15
3.15
3.15
3.24
3.23
1.58
1.57
1.58
1.57
1.58
1.57
1.58
1.57
26.3
26.3
26.3
26.3
31.58
31.57
31.58
31.57
PLAY
E
C
5.19
0
0
0.22
0
0
5.02
0
4.01
1.9
0
0
0
0
5.2
0
0
5.19

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