Tektronix TDS1001C-EDU, Service Manual

Page: 53 / 114

Adjustment Procedures
This section contains adjustment procedures for the TDS2000C and
TDS1000C-EDU series oscilloscopes.
Only quali fi ed personnel should perform service procedures. Read the Service
Safety Summary and the General Safety Summary at the beginning of this
manual before performing any service procedures. Refer to the user manual for
information about using these oscilloscopes.
NOTE.
The voltage references inside the oscilloscopes are very stable over time
and do not require routine updates. Do not perform any procedure in this section
unless the oscilloscope does not meet speci
fi cations. Refer to the Performance
Veri fi cation section to check the oscilloscope performance to speci fi cations.
Required Equipment
The equipment described in the following table, or a suitable equivalent, is
required to complete these procedures. (See Table 14.)
Table 14: Required equipment
Description Minimum requirements s Example
DC Voltage Source -20 V to 20 V, ± 0.1% accuracy
Leveled Sinewave Generator 5 kHz and 200 MHz, ±0.6% amplitude accuracy
Wavetek 9100 Universal Calibration
System with Oscilloscope Calibration
Module (Option 250)
Fluke 5500A Multi-product Calibrator with
Oscilloscope Calibration Option (Option
5500A-SC)
50 Ω BNC Cable BNC male to BNC male, ≈ 1 m (36 in) long
Tektronix part number 012-0482-XX
50 Ω BNC Cable (seven) BNC male to BNC male, ≈ 25 cm (10 in) long
Tektronix part number 012-0208-XX
50 Ω Feedthrough Termination BNC male and female connectors
Tektronix part number 011-0049-XX
Dual Banana to BNC Adapter Banana plugs to BNC female Tektronix part number 103-0090-XX
BNC T (three) One male and two female BNC connectors Tektronix part number 103-0030-XX
Adjustment Procedure
The adjustment procedure consists of 70 steps for the 2-channel oscilloscope, and
106 steps for the 4-channel model. Each step requires an external voltage source
for new calibration constants.
Before performing the adjustment procedure, warm up the oscilloscope for at least
ten minutes in an ambient temperature between 20 °C and 30 °C. Adjustments
performed before warm up or outside this temperature range may result in poor
performance.
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 41