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Replacing the Amplifier Microcircuit
Tools Required:
10 mm open-end wrench
Small flatblade screwdriver
Refer to
Figure
7-6.
1. Remove the nose assembly.
2. Remove the amplifier microcircuit.
Refer to
Figure
7-7.
3. Remove and discard the spring clip and elastic conductive strip.
4. Place the new amplifier microcircuit into the probe heatsink. Place the new elastic conductive strip in
place, making sure the gold traces are facing down and are aligned lengthwise with respect to the
probe. Make sure the elastic strip is flush with the front end of the heatsink. The screwdriver may be
used to move the strip.
5. Place the new spring clip over the elastic strip, flush with the front of the heatsink. The beveled end
of the clip should face away from the amplifier microcircuit. The center of this U-shaped clip must
press into the elastic conductor. Insert one side of the clip into the small slot in the probe heatsink.
Press the other side of the clip down with the small screwdriver until it snaps into the slot on the other
side of the heatsink.
6. Replace the nose assembly and nut.
CAUTION
Failure to remove the nose assembly prior to replacing the tip will result in damage to the
conductive elastomer on the tip assembly.
Figure 7-7
Probe Wand Components
Chapter 7
Service
Replacement Procedure
7-9
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Troubleshooting
