Tektronix 2445A - Page 261

A 1-MAIN BOARD (CONT)
CIRCUIT SCHEM CIRCUIT
SCHEM
CIRCUIT
SCHEM
CIRCUIT SCHEM
NUMBER
NUMBER NUMBER NUMBER NUMBER
NUMBER NUMBER NUMBER
R855
6
R983
6
U350
5
U950 11
R856
6
R984
6
U350 11
U975 5
R858
6
R985
5
U400
6
U975
6
R860
6
R995
6
U400 11
U975 11
R901
5
S615
6
U450 4
U980 5
R903
6
Ul00
4 U450 11
U980 6
R904
5 UlOO
11 U475
6
U980
11
R907
5
Ul 10 4
U4B5
6 VR112
5
R910
5
U110 11 U500
5
VR125
11
R912
5
U120 4
U500 11
VR152
5
R924
5
U120
11
U550
5 VR225 11
R936 5 U130
4 U600
6 VR550
5
R937
5
U130
11 U600
11 W101
11
R939
5
U140 4
U650
5 W102 11
R940
5
U140 11
U650 11 W103
11
R941
5
U150
4 U700
5 W104
11
R942
5
U150
11 U700 11
W105 11
R943
5
U160 4 U735
6 W106
6
R944
5
U160
11 UBOO 6
W107
5
R945
5
U165 4 UBOO
11 W108
5
R947
5
U165 5 U850
5 W109 11
R950
5
U165
11 UB50
11 W112
5
R951
11 U170 4 U860
5
W120 ..
5
R952
5
U170 11
UB60
6
W121
11
R956
6
U1B0
4
UB60
11
W122 5
R957
6
U1B0
11 U900
5
W12
11
R972
6
U200
4 U900
11 W141
6
R973
6
U200
11 U910
5 W918
6
R981
5
U300 4
U910 11
W919 6
R982
5
U300 11
U950 6
AB-SCALE ILLUMINATION BOARD
CIRCUIT
SCHEM CIRCUIT
SCHEM CIRCUIT SCHEM
CIRCUIT
SCHEM
NUMBER
NUMBER
NUMBER NUMBER
NUMBER NUMBER NUMBER NUMBER
0S100
4
0S101
4
DS102 4 W181 4