900-0107-01-00 Rev A
1
FX-Class and FXR-Class
Inverter/Charger
Service Instructions
Purpose and Scope
These instructions detail how to remove and replace the following parts of any FX-class or
FXR-class inverter/charger.
Control Printed-Circuit Board Assembly (PCBA)
AC Printed-Circuit Board Assembly (PCBA)
FET Printed-Circuit Board Assembly (PCBA)
Ribbon Cables
These instructions extend to all FX, FXR, VFX, VFXR, GTFX, GVFX, and GFX models, including all
mobile and international models.
Tools Required
#2 Phillips screwdriver
3/8” flat blade screwdriver
4mm hex wrench (included)
Strap wrench
Long-nose pliers
10mm socket with 12” extension & torque wrench
10mm wrench (standard and torque)
Power supply (9-volt batteries may be used)
Voltmeter or DVM
Disassembly
This procedure describes the removal of all circuit boards in an FX-class or FXR-class inverter. The
exact steps and order may vary with the repairs needed.
The order of removal depicted here is:
1.
Control PCBA
2.
AC PCBA
3.
FET PCBA
If not all boards need to be replaced, the installer may proceed through the steps that are required
and ignore the subsequent disassembly. (Note that replacing the AC PCBA requires removal of the
Control PCBA regardless of any other steps.)
The installer should then proceed to the reassembly and testing steps, which begin on page 7.
