Tektronix TPS2000 Series, Service Manual

Page: 47 / 106

Performance Verification
TPS2000 Series Digital Storage Oscilloscopes Service Manual
4- 5
This test checks the bandwidth of all input channels.
1. Set up the oscilloscope using the following steps:
Press menu button Select menu option Select setting
DEFAULT SETUP — —
CH 1 (or whatever channel is
currently being tested). Voltage Probe 1X
ACQUIRE Average 16
TRIGGER Coupling Noise
MEASURE Source An unchecked channel
Type Pk-Pk
2. As shown below, connect the oscilloscope channel selected in the table to the
leveled sine wave generator.
Digitizing oscilloscope
Leveled
sine wave
generator
50
Ω
feedthrough
terminator
BNC cable
Output
3. Set the oscilloscope VOLTS/DIV to 500 mV/div .
4. Set the oscilloscope SEC/DIV to 10 s/div .
5.
Set the leveled sine wave generator frequency to
50 kHz
.
6.
Set the leveled sine wave generator output level so the peak-to-peak
measurement is between
2.98 V and 3.02 V .
7. Set the leveled sine wave generator frequency to:
H
100 MHz
if you are checking a TPS2012/2014
H
200 MHz if you are checking a TPS2024.
8. Set the oscilloscope SEC/DIV to 10 ns/div .
9. Check that the peak-to-peak measurement is
≥
2.12 V .
Check Bandwidth