A10 —MAIN BOARD (cont)
(SN B715000 AND ABOVE, 2246 1Y
SN B120000 AND ABOVE, 2246 MOD A)
CIRCUIT
NUMBER
SCHEM
NUMBER
BOARD
LOCATION
CIRCUIT
NUMBER
SCHEM
NUMBER
BOARD
LOCATION
CIRCUIT
NUMBER
SCHEM
NUMBER
BOARD
LOCATION
CIRCUIT
NUMBER
SCHEM
NUMBER
BOARD
LOCATION
CR802
6
4M
P9
7
8N
Q802
6
7K
R156
1
1C
CR803
6
8J
P9
7
9N
080 3
6
7J
R157
1
1C
CR807
6
8J
P17
6
7K
080 4
6
7J
R158
2
1C
CR935
7
7A
P18
6
8K
Q805
6
8K
R159
1
1C
CR936
7
7A
P19
2
10H
Q806
6
8K
R160
2
1C
CR1001
7
5L
P20
2
9H
080 7
6
8J
R161
1
IB
CR1002
7
5L
P2302
13
10D
Q809
6
8H
R162
1
IB
CR1003
7
8L
P2302
7
10D
0 81 0
6
7H
R171
1
3B
CR1004
7
7L
P2304
7
11D
Q 811
6
7J
R175
1
3B
CR1005
7
3L
P2502
13
1L
0 81 2
6
8J
R176
1
3C
CR2701
7
9M
P2502
4
1L
0 90 5
7
10A
R177
1
3C
CR2702
7
9M
Q907
7
10A
R178
1
3C
CR2703
7
8N
Q131A
1
2B
0908
7
10A
R179
1
3C
CR2704
7
6N
Q131B
1
2B
Q1001
7
4L
R180
1
2B
CR2705
7
6M
Q151A
1
IB
010 02
7
4L
R181
1
IB
CR2707
7
7L
Q151B
1
IB
Q1003
7
4L
R182
13
6D
CR2713
7
10L
Q171
1
2B
Q1004
7
4L
R185
1
6D
CR2714
7
11L
Q181
1
6D
Q1005
7
7L
R188
1
3D
CR2715
7
9L
Q182
1
4D
Q1101
3
5J
R201
2
5G
CR2716
7
9M
Q250
2
4E
01102
3
5J
R202
2
5G
CR2717
7
9M
Q251
2
4F
011 03
3
5J
R203
2
5G
CR2718
7
8L
Q252
2
4E
Q1104
3
5J
R204
2
5G
Q253
2
4F
011 05
3
5J
R205
2
6H
DL21
2
3F
Q284
2
6E
011 06
3
5J
R206
2
5G
DL21
2
10K
Q285
2
5E
02701
7
7N
R207
2
9G
DL22
3
2H
Q301
5
TO
027 02
7
7M
R208
13
11H
DL22
3
3K
Q302
5
8E
02703
7
7N
R209
2
1M
Q303
5
8F
02704
7
6N
R210
2
6E
DS901
7
8B
0304
5
8F
02705
7
7M
R211
2
6E
DS902
7
9B
Q305
5
7E
02706
7
7M
R212
2
2L
DS903
7
11B
030 6
5
7 E
02707
7
6M
R213
2
2M
DS2701
7
9N
0307
5
8D
02708
7
6L
R214
2
6H
DS2702
7
9M
0 30 8
5
8F
02709
7
6L
R215
2
6N
DS2703
7 ■
9M
0 30 9
5
8F
02711
7
10L
R216
2
8G
DS2704
7
9M
0 3 1 OA
5
8E
02712
7
10L
R217
2
TO
Q310B
5
8E
02713
7
11L
R218
2
5E
J11
1
6A
Q 311
5
8F
02715
7
6M
R219
2
5C
J12
1
5A
0312
5
8E
R220
2
4E
J13
1
3A
0313
5
9F
R12
1
6C
R221
2
4E
J14
1
1A
0315
5
9E
R13
1
6C
R 222
2
2L
J15
7
7A
031 6
5
9F
R22
1
5C
R223
2
2M
J927
7
1 1B
0317
5
9F
R23
1
4C
R224
2
6H
J1204
13
5J
0318
5
10E
R101
1
7A
R225
2
8C
032 0
5
9E
R102
1
7A
R226
13
6E
K100
1
6A
0321
5
9F
R103
1
7A
R227
2
8C
K101
1
5A
032 2
5
9F
R104
1
7A
R228
2
4E
K102
1
5B
Q323A
5
9E
R105
1
7A
R229
2
5D
K103
1
7B
Q323B
5
9E
R106
1
7B
R230
2
3E
K104
1
5D
032 5
5
10E
R107
1
7B
R231
2
3E
K105
1
6D
032 6
5
8F
R108
1
7B
R232
2
1L
K107
1
4A
0328
5
8E
R111
1
6A
R233
2
2M
K108
1
4A
0329
5
9E
R113
1
5A
R234
2
6H
K109
1
4B
033 0
5
8F
R114
1
5A
R235
2
3E
K110
1
5B
0331
5
9F
R115
2
5D
R238
2
2D
K i l l
1
4D
0332
5
9F
R121
1
5A
R240
2
2E
K112
1
4D
0333
5
8F
R123
1
4A
R241
2
2 E
0440
3
2H
R124
1
3A
R242
2
1L
L101
13
2C
Q444
3
3F
R125
2
4D
R243
2
2M
LI 02
13
2C
Q470
3
1H
R131
1
2A
R244
2
6H
LI 30
1
2C
0474
3
2F
R132
1
2A
R245
13
3D
L140
1
1C
0480
3
IF
R133
1
2A
R248
2
2E
L201
13
6E
0600
4
3N
R134
1
2A
R249
2
5G
L216
13
4H
Q601
4
3N
R135
1
2B
R254
2
5F
L217
13
5H
0602
4
2K
R136
1
20
R255
2
5F
L426
3
3H
0603
4
2K
R137
1
20
R256
2
6F
L432
3
2G
0604
4
3K
R138
2
20
R260
2
5E
L445
13
3J
0605
4
3K
R139
1
20
R261
2
5E
L462
3
1G
060 6
4
2K
R140
2
20
R262
2
5F
L475
13
1J
0607
4
2K
R141
1
2B
R263
2
5F
L701
2
9J
Q608
4
2L
R142
1
2B
R264
2
5F
L702
2
10J
Q701
2
9J
R151
1
2A
R265
2
5F
L703
2
9H
Q702
2
lOJ
R152
1
2A
R266
2
4F
L704
2
10H
Q703
2
SK
R153
1
1A
R267
2
4F
Q704
2
11H
R154
1
2A
R268
2
5F
P8
7
10N
Q801
6
7K
R155
1
IB
R269
2
5F
ADD J UN 1991
Содержание 2246 1Y
Страница 13: ...2246A Service 7062 01 X The 2246 1Y or 2246 Mod A Portable Oscilloscope ...
Страница 35: ......
Страница 69: ...Theory of Operation 2246 1Y and 2246 Mod A Service 15 V 6081 07 3 32 Figure 3 4 Simplified Sweep Circuit ...
Страница 91: ...Theory of Operation 2246 1Y and 2246 Mod A Service 6081 12 6557 99 3 54 Figure 3 9 Power Supply block diagram ...
Страница 139: ......
Страница 185: ......
Страница 187: ......
Страница 278: ...Figure 9 5b Detailed 2246 1Y or 2246 Mod A block diagram part 2 R E ...
Страница 287: ......
Страница 304: ...A D D J U N 1991 ...
Страница 311: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 1 0 V r l III B f e I l i 6555 39 ...
Страница 314: ...15 14 13 12 11 10 9 8 7 6 5 12 11 10 9 8 7 AT117 A TI 271 1 2 3 4 5 6 6555 70 Figure 9 8 Hybrid pin identifiers ...
Страница 319: ......
Страница 320: ......
Страница 321: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 2 SET READOUT CONTROL CCW OFF 6555 40 ...
Страница 323: ......
Страница 324: ......
Страница 326: ...A B C P E F G ...
Страница 327: ......
Страница 331: ......
Страница 337: ......
Страница 340: ......
Страница 343: ...C l rti ...
Страница 344: ...WAVEFORMS FOR DIAGRAM 5 2246 1Y and 2246 Mod A Service HORIZ MODE A A SEC DIV 2M S HOLDOFF MIN CCW ...
Страница 345: ...HORIZ MODE ALT A SEC DIV 2M s B SEC DIV 5 mS HOLDOFF MIN DELAY INTENSIFIED ZONE STARTS MIDSCREEN ...
Страница 347: ...BEV JUNE 1991 7062 18 ...
Страница 349: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 6 6555 43 I ...
Страница 354: ...A L B i C 1 D 1 E i F i G 1 2 3 4 5 6 7 8 2246 1Y AND 2246 MOD A _________A fc A A REV JUNE 1991 7062 19 ...
Страница 355: ...I BOARD LOCATION 8K 8J 8H 7H 8H 8H 7J 8D 7H 8H 8J 8J 7K 8K 10D 6L 6K 6L 6K 6G 5H I ...
Страница 362: ......
Страница 372: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 9 MORE ...
Страница 373: ... 6555 72 6557 88 ...
Страница 375: ......
Страница 376: ...SCHEM LOCATION BOARD LOCATION 2E 2B 7F 4B 4J 5D 3J 5C 4L 6D 3L 6C 5L 7D 3L 7D 3M 7D 5M 7D IB 1A 1C 1A 2B 1A 3B 1A ...
Страница 380: ...WAVEFORMS FOR DIAGRAM 10 ...
Страница 387: ...WAVEFORMS FOR DIAGRAM 11 6555 73 6557 48 ...
Страница 394: ...WAVEFORMS FOR DIAGRAM 12 2246 1Y and 2246 Mod A Service i f I S 1 f c i 4 i ...
Страница 395: ...WAVEFORMS FOR DIAGRAM 12 cont 2246 1Y and 2246 Mod A Service ...
Страница 397: ......
Страница 398: ......
Страница 400: ...REV JUNE 1991 7062 39 ...
Страница 401: ......
Страница 403: ......
Страница 404: ......
Страница 406: ...B 2246 IV AND 2246 MOD A ...
Страница 407: ......
Страница 408: ......
Страница 414: ... _ 5 ...
Страница 415: ...2246 1Y 2246 MOD A ...
Страница 416: ......
Страница 423: ...2246 1Y 2246 MOD A ...
Страница 424: ...2246 1Y 2246 MOD A ...
Страница 425: ......
Страница 433: ......