Tektronix 5441 Instruction Manual page 138

Section 8-5441fR5441
DIAGRAMS AND CIRCUIT BOARD ILLUSTRATIONS
Sym bols
Graphic symbols and class designation letters are Y14.159 Drafting Practices.
based on ANSI Standard Y32.2-1975.
Y14.2, 1973
Line Conventions and Lettering.
Logic symbology is based on ANSl Y32.14-1973 in
terms of positive logic. Logic symbols depict the logic
function performed and may differ from the manufac-
turer's data.
1968 Letter Symbols for Quantities Used in
Electrical Science and Electrical
Engineering.
American National Standard Institute
1430 Broadway
New York, New ~ o r k ~ 10018
The overline on a signal name indicates that the signal
performs its intended function when it is i n the low state.
Component Values
Electrical components shown on the diagrams are in
the following units unless noted otherwise:
Abbreviations are based on ANSl Y1.l-1972.
Capacitors = Values one or greater are in picofarads (pF).
Values less than one are in microfarads
Other ANSI standards that are used i n the preparation
( P F ) .
of diagrams by Tektronix, Inc. are: Resistors = Ohms
(n).
The information and special symbols below may appear in this manual.
Assembly Numbers and Grid Coordinates
Each assembly in the instrument is assigned an
assembly number (e.g., A20). The assembly number
appears on the circuit board outline on the diagram, in the
title for the circuit board component location illustration,
and in the lookup table for the schematic diagram and
corresponding component locator illustration. The
Replaceable Electrical Parts list is arranged by assemblies
in numerical sequence; the components are listed by
component number *(see following illustration for
constructing a component number).
Function Block Title
Internal
Screwdriver
Adjustment
Cam Switch
Closure Chart
(Dot indicales
switch closure)
Etched Circuit Board
Oulllned i n Black
Refer t o Waveform
Function Block
Outline
IC type
Test Voilage
Heat Slnk
Board Name
PIO-Parl o l
Clrcuil board
Assembly Number
Tektron~x Part No.
for clrcuil boards
The schematic diagram and circuit board component
location illustration hsve grids. A lookup table with the
grid coordinates is provided for ease of locating the
component. Only the components illustrated on the facing
diagram are listed in the lookup table. When more than
one schematic diagram is used to illustratethe circuitry on
a circuit board, the circuit board illustration may only
appear opposite the first diagram on which it was il-
lustrated; the lookup table will list the diagram number of
other diagrams that the circuitry of the circuit board
appears on.
.I'
,I
CoumlIll N U U B I R [UUPLI
emmnn,
"0.k
S Y N C G E N E R A T O R
.
" " " 2 . . ,,,d,
M o d ~ f i e d C o m p o n e n t
( D e p ~ n e d In Grey, or With
Grey Outl~ne) - See Pans hst.
Strap or Link
Plug t o E.C. Board
Indicators
Coaxlal conneclors
male
female
Plug Index: signifies pin No.
1
External Screwdriver Adi
Shielding
Selected value, see Parts L ~ s t
and Malnlenance Seclton for
Selection Crlter~a
Decoupled or Filtered
Voltage
Refer to Diagram Number
Schematic Name
and Number
I 1
C W S I ,
mr"DdlI1-m, *rplL..m..bl
I . & . - *
"'
I 4 * I I I I I I X . I I U 1111 I.,,
REV MAY 1982