Introduction; Initial Setup - Tektronix 2247A Operator's Manual

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Operator Checks and Adjustments
Introduction
The checks and adjustments in this section are for the operator and involve
using only controls and adjustments on the outside of the Instrument.
Internal adjustments must be made by a qualified service person.
Before operating the Instrument for the first time and before connecting the
power, refer to Section 1 "Preparation for Use" to prepare the instrument
for the initial start-up.
Verify that the POWER switch ls OFF (out position). Plug the power cord
into a power-source outlet that supplies a voltage within the operating
range of the.Jnstrument' s power supply.
NOTE
If
you notice an improper Indication or instrument ma/-
function during these procedures, refer • the Instrument to a
qualified ~ervice person. ,
. Initial Setup
The following procedure may be used to set up ' front-panel controls when
the instrument ls first turned on or when a signal is not being applied to the
Input connectors.
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1.
Press In the POWER switch button (ON) and let the Instrument warm up
(20 minutes ls recommended for maximum accur~cy).
2. Set the Instrument front-panel controls to obt~ln a ~aseline trace:
Vertical Controls
VERTICAL MODE
POSITION
VOLTS/DIV
VOL TS/DIV VAR
Channel 1 COUPLING
2247 A Operators
CH 1
Center the trace
1 V
Calibrated detent
GND
4-1