56
InfiniiMax III Series Probes User’s Guide
3
Maintaining Probe Heads
Replacing Axial Resistor Tips
The procedure in this sections shows you how to replace the 130 ohm axial resistors that
are located at the tip of the:
• MX0109A solder-in probe head
• N2836A solder-in probe head
• N2838A ZIF tip
These resistors can become worn or damaged with use. Order the replacement axial
resistor kit (N2836-68701) which provides 10 resistors.
Recommended Equipment
• Vise or clamp for holding tip.
• Metcal STTC-022 (600 °C) or STTC-122(700 °C) tip soldering iron or equivalent. The
600 °C tip will help limit burning of the FR4 tip PC board.
• 0.381 mm (0.015 in) diameter RMA flux standard tin/lead solder wire.
• Fine stainless steel tweezers.
• Rosin flux pencil, RMA type (Kester #186 or equivalent).
• Diagonal cutters.
• Magnifier or low power microscope.
• Ruler.
Procedure
1
As shown in
, clamp the probe head or ZIF tip in a vise. Tweezers can be used to
hold the probe head or ZIF tip away from the vise. When using tweezers, grip the tip either
on the sides or top and bottom.
NOTE
The pictures in the following procedure show the N2836A solder-in probe head, but the same
procedure applies to the MX0109A and N2838A ZIF tip.
CAUTION
As the probe heads and tips are easily damaged, only experienced soldering technicians
should attempt this repair.
CAUTION
When tightening the vise, use light force to avoid damaging the solder-in probe head.
Содержание InfiniiMax III N2800A Series
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