Tektronix TYPE L Instruction Manual page 7

M arkin gs and Functions of Controls
The functions of the controls
understood before operating the L Unit. This
section of the Instruction Manual is intended
to aid in initially putting the instrument into
operation and to serve as a b rief reference
guide. Figure 2-1 shows the front-panel con­
trols, connectors and adjustments of the Type
L Plug-In Unit and describes their functions.
In this Manual, control and adjustment mark­
ings are given as printed on the instruments,
with fully capitalized words used for front-
panel markings, and first-letters capitalized
fo r names of internal adjustments. Examples:
V E R TIC A L POSITION control; H.F. Peaking
control.
On the front panel of the L Unit,red markings
are related to the red VARIABLE knob, blue
and black markings are related to the black
knobs. The black-numbered scale around the
VOLTS/CM switch is used when the AC-DC
switch is in AC o r DC position, and the blue
scale is used when the AC-DC switch is in
X10 GAIN AC position.
In the following procedures, oscilloscope
controls are called by the names usually applied
to them on the scopes with which the Type L
Unit can be used. Alternate names fo r the
controls are given in parentheses.
First-Tim e Operation
To set the oscilloscope/Type L Plug-In Unit
combination in operation fo r the first time
the following procedure is suggested:
1. Insert the Type
compartment of the oscilloscope and tighten
it with the securing rod.
AA
should be
L Unit into the plug-in
Operating Instructions - Type L Plug-In
O P E R A T IN G
IN S T R U C T IO N S
2. Set the front-panel controls as follows (con­
trols not mentioned may be in any position):
Oscilloscope:
POWER
INTENSITY
HORIZONTAL DISPLAY
MAGNIFIER (5X MAG.)
Main Sweep Controls:
TIME/CM
VARIABLE, TIME/CM
TRIGGER SLOPE
TRIGGERING MODE
(TRIGGERING SOURCE)
STA B ILITY
TRIGGERING LE V E L
Type L Plug-In Unit:
AC-DC
VOLTS/CM
VAR IAB LE , VOLTS/CM
3. Connect the power cord to the instrument
and to the source of power.
4. Turn ON the POWER switch. Allow a minute
fo r the filaments to heat and the tim e-delay
relay to operate.
5. B efore increasing the intensity, center the
trace vertically with the VE R TIC AL POSITION
control, using the Beam Indicator neons of
the oscilloscope as a guide. (When both vertical
off
fully counter­
clockwise
NORMAL (" A" ,
INTERNAL
SWEEP)
OFF
.5 MILLISEC
CALIBRATED,
fully clockwise
-INT. (-)
AC (AC SLOW)
(IN T .)
fully clockwise
fully clockwise
DC
.05 (black
numbers)
CALIBRATED,
fully clockwise
2-1