Tektronix TDS 220 Service Manual

Performance Verification
TDS 200 Series Digital Oscilloscope Service Manual
4–9
TDS 210 and TDS 220 only: this test checks the edge trigger sensitivity for the
external trigger.
1. Set up the instrument using the following steps:
Press menu button Select menu item Select setting
SAVE/
RECALL
Recall
Factory
—
CH 1 Probe 1X
TRIGGER
Source Ext
Mode Normal
ACQUIRE Sample —
MEASURE
Source CH1
Type Pk-Pk
2. Connect the instrument to the leveled sine wave generator as shown below.
Digitizing oscilloscope
Leveled
sine wave
generator
Output
50 W
feedthrough
terminator
BNC
cable
BNC cable
BNC T connector
3. Set the leveled sine wave generator frequency to 60 MHz if you are checking
a TDS 210 or to 100 MHz if you are checking a TDS 220.
4. Set the instrument VOLTS/DIV to 500 mV/div.
5. Set the instrument SEC/DIV to 10 ns/div.
6. Set the leveled sine wave generator output level to approximately 750 mV
p-p
so that the measured amplitude is approximately 750 mV. (The measured
amplitude can fluctuate around 750 mV.)
7. Press SET LEVEL TO 50%. Adjust TRIGGER LEVEL as necessary and
then check that triggering is stable.
Check External Edge
Trigger Sensitivity

Tektronix TDS 220 Specifications

General

Brand	Tektronix
Model	TDS 220
Category	Test Equipment
Language	English