Tektronix 2445A - Page 267

2445A CHANNEL SWITCH AND OUTPUT AMPLIFIERS DIAGRAM 6
ASSEMBLY A1
CIRCUIT
SCHEM BOARD CIRCUIT SCHEM BOARD CIRCUIT
SCHEM
BOARD CIRCUIT SCHEM BOARD
NUMBER
LOCATION LOCATION NUMBER
LOCATION
LOCATION NUMBER LOCATION
LOCATION
NUMBER
LOCATION
LOCATION
C4D2 3F
6G
JS11 4A
1D R491 1E
3K R822
SB
BE
C403
2J
6J JS11 SA 1D R492
2E
4L
R823
SK
9E
C404
2H SJ
JS12
10N
1J R493
2E 3L RBSO 6J
10G
C412
2F SG JS12 4N
1J
R494 2D
3L RBSS
6K BF
C478
3E
4L
JS12 9A
1J R49S
2F
4K
R8S6
6L
10E
C487
2C
4L
JS12 9N 1J
R496 1D 3L
R8S8 6K 10E
C488
2C 3L R497 4D 6L
R860 6K 10D
C601
2K SJ L60S
2L 6J
R498
3D SK R903
7H
7K
C617
4L 6H L606 2K
6K RSOO
9B
1K
R9S6
9K BL
C62S
1M
7G
L607 2K 6H RS01
10B
1K
R9S7
BL
BK
C73S
6H BE
L608 2L
6H
R600
4M 7K
R972
9N
10L
C803 6L 9G
L609 2K 6J R601
2K
SJ
R973 9M 10L
C804 6M
9G L610 2K 6H R602 2L SJ
R983
7G
7L
CBOS
7M 9G
L619
4M 7G R60S
2L SJ R984
7G 7L
C806
SM
9F
L628 3M
BJ R606
2K
6J
R99S 98
BL
C808
SM 9G L633 2M
BJ
R607
2K 6H
C809 SM BG
L644 3M
7K R610 2K SH S61S
4K
10B
C817 SC
BF
R614
4H
BF
CB22
SB
9E
0600 4J
SK R61S 4K 10B
U400
lF
SF
C823
SK 7E 0623 1M
7H R617
4L
6H
U47SA
3D
4K
C9S7
9K BL 0624
1 L BH R618
4L
6H
U47SB
3D 4K
C972
9N
10L
R619
4M 7H U47SC
1D 4K
C99S 98 BL
R401 3F 6G R620
4N BH
U47SD
3E
4K
R402 3F 6G R622
4L 7H
U48SA
2D
4L
CR476
3E
4K
R403 2H SJ R623
1L 7H
U4858
2D 4L
CR484
3D
4L R404
3J 6J
R624
1M 7G U485C
2C 4L
CR48S
3C
4L R40S
2J 6J R637
3L
BK
U485D
2C 4L
CR49S
2E
3L R410
2J 6J R638
3L
7K
U600
1L 7J
CR600
4J
7K
R412
2F SG R639 3J
7K
U735A SJ 9E
CR601 3M BK
R416 2F
4F
R642 4J
SK U735B 6H 9E
CR616
4G 7L
R6SO 4J
SK U735C 6H 9E
CR619
4M
7G
R470 4C
4L R6S9
3K 7K
U73SD
6H 9E
CR620
3N
BH
R471 3D 4L R731
SH
BE U73SE
6H 9E
CR621
3N BH R476 3F
4K R732
6H 9E
UBOO
4M 9F
CR9S6
9L
BL
R477
3E
3K R733 6J
9F U860C 6K 7G
CR966 BM 10L
R478
3E
4K R734 6J 9F U9SO
7M
9L
CR972 9M 10L
R479
2E
SK R73S 6H
BF
U97SA
4D
7L
CR99S
9B BL R480
2D 3K RBOO
7L 9G
U97SC
7G 7L
R481
3D 4L
R801 7K 9G U980B BG
7L
DL100
1G
6F
R482 3D 4L
R802
5L 9G U980C 7G
7L
R483 2D SL R803
SL
9G
J191 BK
10L
R484
3D
4L R804
6M 9G
W106
9A
BM
J191
BN
10L
R4BS 4C 4L
ABOS 6M 9G
W141
7C
10G
J191
9A
10L
R486 2C 4L
R806
7M
9G
W141 7F
10G
J411
10A
1 L R487
2C 4L R809 6M BG W91B
6N
BG
J411 2A 1L
R48B 2C 4L RB17 SC
BF
W919
6N
9G
J411 4A
1L
R4B9
2B
3L
RB20
SK 7F
J411 9N
1L
R490
,c
4K
RB21
SK
7E
Partial A 1 al so shown on diagrams 4, 5, 8 and 11
ASSEMBLY A9
P191
BK
4B R1833
BJ
1C R1842 BJ 1C
R1B34
BJ
1B
Partial A9 al so s hown on diagrams 8 and 12
ASSEMBLY A14
C3401
7C 2B R3402 8D
1B
R3408
6E
2B
U3402 SE 2B
R3403
SD 2A R3409
6D
2B
J141
SE 2C R3404
BE 2B R3410
6C 2A
J141
7C
2C
R340S
6C 2A
R3411 6C
28 VR3401
SC 2A
R3406
6C 2B
R3401
7E
1A
R3407 6E 2A U3401
7E 1B
OTHER PARTS
J6
9A
CHASSIS
P106
9A
CHASSIS P141
7C CHASSIS W916 2N CHASSIS
P141
SF CHASSIS
W917
3N
CHASSIS
"
tt //1 I
0