Open The Bottom Case; Remove The Pca - Fluke 150X Series Calibration Manual

150X Series
Calibration Manual

Open the Bottom Case

With the battery door removed, the next step to disassemble the Tester is to remove the
bottom case. To remove the bottom case:
When you remove the back cover, you do not have to remove the fuse or the batteries.
1. Locate the four Philips head screws on the bottom case (two are next to the batteries and
two are next to the fuse).
2. Use a Philips screwdriver to remove the four screws.
3. Separate the front and bottom cases at the fuse end of the Tester. Tilt the free end of the
cover up and lift it away from the top case.
To install the bottom case, first, position and press together the display end of the top
and bottom cases. Before you install all four screws, press the fuse end of the covers
together.

Remove the PCA

With the bottom case removed, the next step to disassemble the Tester is to remove the
printed circuit assembly (PCA). Refer to
procedure to remove the PCA:
1. One Philips screw attaches the PCA to the top case. Locate the screw near the center of
the PCA and remove it.
2. Two chrome-plated springs on the PCA form an electrical connection (clip) to the two
recessed INSULATION(+) terminals on the top case. Pull each of the springs back and
away from the terminals to carefully break these connections. See
8
Note
Note
Figure 3 for the exploded part view and use this
Figure 4.