Tektronix IsoVu TIVM Series, User Manual

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Reference information
The 0.025-inch (0.635 mm) square pins should already be located on the circuit
board. Some square pins might have headers installed on the circuit board.
Tektronix recommends removing the plastic spacer from the square pins to gain
closer access to the circuit board as shown in the following
fi gure to achieve the
best electrical performance, especially the CMRR. You might need to use a pair of
tweezers to remove the spacer as shown in the
fi gure.
Figure 34: Removing the header from square pins on the circuit board
Tektronix provides a set of solder pins (0.018-inch (0.46 mm) diameter) to install
on the circuit board for use with the MMCX to 0.062-inch (1.57 mm) adapter.
Use the soldering aide tool accessory (Tektronix part number, 003-1946-xx) to
install these pins on the circuit board.
NOTE.
The solder pins are extremely small and can be challenging to handle.
Tektronix recommends using tweezers and a magnifying tool when installing
the pins on the circuit board.
The solder pins can be installed around a surface mounted component on the
circuit board, but adequate clearance should be maintained for a good electrical
connection for the adapter. (See Figure 33 on page 42.)
NOTE. The coaxial (common) shield of the sensor tip cable and tip adapters
should always be connected to the lowest impedance point (usually a circuit
common or power supply rail) in the circuit-under-test (relative to the sensor tip
cable/center conductor) to obtain the most accurate waveform.
TIVM Series Measurement System User Manual 43