Service manual
Manuals
Brands
Zenith Manuals
Computer equipment
SM-Z-90
41
42
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DOUBLE-DENSITY
DISK
CONTROLLER
~l7
ยทยท1
Semiconductor
Identification
Chart
INTEGRATED
CIRCUITS
COMPONENT
NUMBER
U1
U2
PART
NUMBER
HE
443-885
HE
443-754
MAYBE
REPLACED
WITH
74LS245
74LS240
IDENTIFICATION
1
...
...
43
44
45
46
47
...
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53
