Tektronix TM 503 User Manual

Service Information — TM 503
DIAGRAMS
AND
CIRCUIT
BOARD
ILLUSTRATIONS
Symbols and Reference Designators
Electrical
components
shown
on
the
diagrams
are
in
the
following
units
unless
noted
otherwise:
Capacitors
=
Values
one
or
greater
are
in
picofarads
(pF).
Values
less
than
one
are
in
microfarads
(uF).
Resistors
=
Ohms
(Q).
Graphic
symbols
and
class
designation
letters
are
based
on
ANSI
Standard
Y32.2-1975.
Logic
symbology
is
based
on
ANS!
Y32.14-1973
in
terms
of
positive
logic.
Logic
symbols
depict
the
logic
function
performed
and
may
differ
from
the
manufacturer's
data.
The
overline
on
a
signal
name
indicates
that
the
signal
performs
its
intended
function
when
it
goes
to
the
low
state.
Abbreviations
are
based
on
ANSI
¥1.1-1972.
Other
ANSI
standards
that
are
used
in
the
preparation
of
diagrams
by
Tektronix,
inc.
are:
14,15,
1966
Drafting
Practices.
¥14.2,
1973
Line
Conventions
and
Lettering.
¥10.5,
1968
Letter
Symbols
for
Quantities
Used
in
Electrical
Science
and
Electrical
Engineering.
The
following
prefix
letters
are
used
as
reference
designators
to
identify
components
or
assemblies
on
the
diagrams.
A
Assembly,
separable
or
repairable
H
Heat dissipating device
{heat
sink,
Ss
Switch
or
contactor
(circuit
board,
etc)
heat
radiator,
etc)
T
Transformer
AT
Attenuator,
fixed
or
variable
HR
Heater
Te
Thermocouple
B
Motor
HY
Hybrid
circuit
TP
Test
point
aT
Battery
J
Connector,
stationary
portion
u
Assembly,
inseparable
or
non-repairable
c
Capacitor,
fixed
or
variable
K
Relay
{integrated
circuit,
etc.)
CB
Circuit
breaker
Lb
inductor,
fixed
or
variable
Vv
Electron
tube
CR
Diode,
signal
or
rectifier
M
Meter
VR
Voltage
regulator
(zener
diode,
etc.)
DL
Delay
line
P
Connector,
movable
portion
Ww
Wirestrap
or
cable
oS
Indicating
device
(lamp)
Q
Transistor
or
silicon-controlled
Y
Crystal
E
Spark
Gap,
Ferrite
bead
rectifier
z
Phase
shifter
F
Fuse
R
Resistor,
fixed
or
variable
FL
Filter
RT
Thermistor
Plug to E.C. Board
The following special symbols may appear on the diagrams:
identifies Panel
Controls, Connectors and
Strap or ka | PIS BAL. indicators
I
Cam Switch
Closure
Chart
[15
Hav
"4
al
—_
Modified
Component—See
(Dot
indicates
nn
a
[|
10
|
[Rise
Parts
List
(Depicted
in
grey,
switch
closure}
felzo
mV
WIG
4
|
BOK
or
with
grey
outline)
[e|5°
-12V
——>
Plug
Index
SEL
Value
Selected
3
+12V
oye
at
Factory
|
Ri4
Refer
to
Waveform
Pm
SEL
@
wy
|
era
ro
L
3
DIAG
Refer
to
Diagram
Number
“
af
“
™
Test
Voltage
JIB
i
Pi3
34.
Coaxial
Connector
cin
Internal
lala
Aajustmont
CED
LL
Shitaing
“
™
Sink
OQ
.
Peat
Oh,
Decoupied
or
Filtered
RIO
Voltage
Assembly Number oo
Board Name cation are oe —
PARTIACAT VERTICAL BOARD J
VERTICAL AMPLIFIER @><— ana Number”
Etched Circuit Board
Outlined in Black
REV B, JUN 1978

Tektronix TM 503 Specifications

General

Brand	Tektronix
Model	TM 503
Category	Control Unit
Language	English