Outback Power Systems FX Series Circuit Board Replacement Instruction - Manual (Page 6)

Installation & Programming Manual FX Circuit Board Replacement Copyright 2003  OutBack Power Systems, Inc.
900-0042-1 19009 62 nd Ave NE, Arlington WA 98223 USA
Page 6
Rev 2.0 10/26/04 Tel 360 435 6030 Fax 360 435 6019
FET BOARD:
Replacing the FET board requires removal of the ribbon cables as well as 2
bolts that hold the FET board in place. Bolt #1 will require a ratchet with a
deep 10mm socket and a 12” extension (see Figure 8). Bolt #2 will require
the two 10mm wrenches (see Figure 8). Pay attention to the washers when
removing the bolts. The larger flat washer makes contact with the copper
busbars. The smaller lock washer is between the flat washer and the bolt
head. The bolts are 6mm .1 x 16mm in case they get lost. The bolts are
stainless steel and therefore non-magnetic, so when you drop one into the
chassis don’t waste your time looking for a magnet. The bolts are tightened
into connecting busbars that have pressed in nuts. You do not need to get
your fingers underneath to retighten. The third thing that may need to be
disconnected (depending on the model) is the “Thermister” clip, located
underneath the ribbon cable connector (see Figure 8). This is most easily
done after removing the bolts by lifting the FET board up until you can get
your hand down there (a small child may be used for this operation, just
kidding). The “Thermister” clip pulls off with a little bit of force. Make sure
you retrieve any pieces of hardware that you may have dropped inside.
Figure 8
STEP 8:
Reassemble: Install the new board or boards making sure that anti-static
procedures have been observed.
FET BOARD: Check the FET board to see if the “Thermister” connecter has a
“Thermister” clip already installed. Remove it if you have the “Thermister” clip
Bolt #1
Bolt #2
Thermister
Clip