Read Sony HT-K250 / STR-VE250 Service Manual online
STR-VE250
9
9
3-2. SCHEMATIC DIAGRAM – MAIN SECTION –
• See page 7 for Waveform. • See page 13 for IC Block Diagrams. • See page 12 for IC Pin Function Description.
11
11
TO
FLASH
PROGRAMMER
IC156
IC
158
C
101
C
116
C168
C
171
C174
Q151
C187
IC151
C194
C195
C197
C196
C154
R197
R189
X201
R110
CNS101
C167
R188
R240
R101
R102
R103
R104
R153
R154
R155
R156
R157
R151
R152
R
18
3
R
18
5
R187
R241
R159
R165
R186
R190
R191
R196
R242
R198
R112
R
166
R
167
R
168
R
169
R
170
R
171
R
173
R
174
R111
R181
R
182
R243
R213
C225
C224
R237
C208
R212
R234
R256
R257
R236
R232
R224
R233
R208
R225
R218
R221
R222
R223
R
158
R
161
R
163
R
164
C
156
C
162
C
160
C158
C166
C165
C164
C223
C105
C108
R235
R
175
R
180
R
108
R
109
C102
C212
C107
C151
C152
C153
C155
C157
C
175
C178
C179
C204
C205
C207
C226
C193
R105
D2
02
D
209
D212
CNS103
Q152
Q154
Q201
Q210
Q213
Q211
Q212
Q227
J101
Q103
Q104
Q153
CNS102
C
184
C1
85
IC159
IC153
C150
R250
R251
R252
R253
R254
R255
R258
R260
R259
R261
R244
IC
157
R
2
64
R
265
R266
R268
R269
R270
R271
R272
C181
R
162
C192
TP201
C104
IC203
D201
C2
17
R230
FB101
FB151
J151
IC152
IC102
R
2
62
C103
R231
C118
C119
R107
C120
R106
C117
C115
C110
R226
R172
R176
R192
CNP101
J152
C2
13
C2
11
R
220
R2
19
R229
R184
IC101
D211
C209
MC14052 BDR2
N
JM
456
5M
-TE2
1000
16V
470
6.3V
47
16V
47
16V
47
16V
2SD1624-T-TD
10
50V
TORX179L
10 50V
10 50V
10 50V
10 50V
100 16V
68
1.8k
16MHz
150k
11P
FFC
FFC
10 50V
10k
4.7k
470
470
470
470
470
470
470
470
75
100
100
10
k
10k
10k
10k
1k
1k
1k
1k
1k
1k
1k
220
220k
220k
220k
220k
220k
220k
220k
220k
220k
22k
22k
2
2k
680k
10k
0.22
100p
CH
1k
0.22F
5.5V
10k
1k
3.3k
1.5k
4.7k
4.7k
10k
10k
10k
10k
100k
100k
4.7k
10k
100k
100k
100k
100k
220p
CH
220p
CH
220p
C
H
220p
CH
10 50V
10 50V
10 50V
22p
47 16V
47 16V
10k
220k
220k
220k
220k
1000p
0.01
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.47
10k
1
SS35
5
1S
S355
1SS355
FFC5P
RT1N141C
RT1N141C
RT1N141C
2SA1162
2SA1162
2SC2712
2SC2712
2SC2712
DIN13P
2SC2712
2SC2712
2SC2712
FFC11P
0.1
0.1
TC7WU04F
TC74HC153
47 16V
1k
1k
1k
100
100
1k
1k
1k
1k
1k
1k
N
JM
456
5M
47
k
47
k
1k
1k
1k
1k
1k
1k
10 50V
22
k
0.1
0.33
MB90553APF
10EDB
40
47
16V
2.2k
0UH
0UH
4P
TORX179L
TA7805S
4.7k
0.33
1k
0.01
10 50V
470
10 50V
470
0.01
0.01
0.1
10k
22k
22k
560k
7P
1P
0.01
0.1
10k
10k
10k
1k
BA10T
1SS355
0.22
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