Replacing The Cpu Engine Card; Figure 73: Engine Card Removal - ABB XSeriesG4 User Manual

Replacing the CPU engine card

One of the major differences in the XRC
processor, as well as the Flash, RAM and serial E
procedure.
NOTE: The engine card holds the machine's configuration. The configuration is in non-volatile Flash, but it is
always a good idea to keep a copy of the configuration files on a laptop. The Save and Restore Utility will save
the configuration to a laptop.
Step-by-step instructions
Collect data from unit.
If possible, back up configuration files following the instructions listed previously in section 4.2, Backing up configuration
files.
Make sure the J1 memory backup jumper covers the top two pins to enable the memory backup. (Figure 70: memory
backup enable jumper.)
Verify "L " battery alarm is not being displayed on the XFC
L
than 3.0V.
Disconnect power from the XRC
connections). Second, remove J16, the main battery pack.
With power removed, gently (with fingertips) spread the connector fingers extending down from the CPU engine card
connector (Figure 73). These fingers extend down to the semi-circular notches on the engine card. When gently spread,
these fingers will release the engine card and it will spring up at a 30-degree angle from the main board.
Gently pull the engine card out at this 30-degree angle. It should require very little force. Be gentle.
To replace the engine card, simply reverse the process. Insert the new engine card at the same 30-degree angle (Figure
74: Engine card replacement). Gently press the engine card in until the gold-plated edge connector pins at the top of the
engine card are no longer visible.
When fully inserted, gently press the engine card down toward the main board. It should snap into the connector fingers
mentioned in the previous step.
If possible, restore station files using the instructions listed in section 2, On the main PCCU screen, on the top menu,
select Operate > File Utilities> Save and Restore Utility or click the Save and Restore Utility icon on the toolbar.
Click Save Station Files at the bottom of the screen. The Save Station files dialog box displays.
G4
is the incorporation of a 32-bit CPU engine card. This engine card holds the main
2
PROM. Should the engine card require replacing, perform the following
G4
G4
board. First remove J17, charger input (Figure 71: XRC

Figure 73: Engine Card Removal

78
or measure the lithium battery to make sure it is greater
G4
battery and charger