VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS
PAGE 3.1.66 VERSION 2.0 2023-04-20
NOTE:
IPA PWB removal will require breaking the seal of the thermal compound between the IPA PWB
and the underlying Mounting Block.
8. Wipe off of any residual thermal compound on the mounting block.
9. Obtain the replacement IPA PWB (Nautel part # NAPA41*), thermal compound (Nautel part #
HAG80) and thermal compound applicator (Nautel part # 235-5026) from the 235-5047 NAPA41
Replacement Kit.
10. Apply a thin, even layer of thermal compound to the entire backside of the IPA PWB using the
thermal compound applicator. See Figure 3.1.42.
Figure 3.1.42: IPA PWB Thermal Compound Application
11. Obtain five replacement M3 screws (Nautel part # HMSP08F) from the 235-5047 NAPA41
Replacement kit.
12. Attach the IPA PWB to the Mounting Block using the five M3 screws. Torque to 6 in-lbs (0.68 N-m).
13. Complete the IPA PWB installation by reversing Step 4 to Step 5.
14. Return the transmitter to operation.
CAUTION! The thermal compound is electrically conductive, so care must be take
to ensure it is only on the backside of the IPA PWB.