4-18
6) If the date defaults to 01 01 01 or the time
defaults to 12P 0 1, then the Real Time Clock
battery is low or the clock was not set on the
last service. The battery voltage must be 2V
or greater for the Real Time Clock to run.
a) The battery is being charged when the
main power is turned on. It takes about
12 hours to charge the battery if the bat-
tery is fully discharged.
b) To test the battery, connect a DVM to
the battery lead that is visible through the
hole on the display shield (backside of
the Display PCB assembly). Connect the
other lead of the DVM to the GND test
point on the Controller Assembly (TP6).
Test the battery voltage with the main
power turned off. The battery voltage
should be 3V or greater.
c) Another way to test if the battery is
charged it to set the clock and date. Turn
off the main power and then turn the
main power back on. Press the PC key
while the unit is powering up to enter the
Last Fault Codes. If the clock displays
12P 0 1, then the battery is not charged
or taking a charge.
4.8.2 Clearing Last Fault Codes
As errors occur, fault codes from earlier errors are
erased in a last-in-first-out fashion. While it is not
absolutely necessary to clear the older codes, clear-
ing the codes may be desirable in some situations.
• Pressing the Monopolar Cut Power
Adjustment Down Key followed by the
Remote Power Control Key will clear the
entire fault code memory. The cut window
will display “
[Lr
” when codes are cleared.
• Pressing the PC key again will display the
optional system configuration settings.
4.9
Displaying Optional System
Configuration
The optional system configuration DIP switch
settings can be checked without removing the top
cover.
• Turn on the main power. While the system is
powering up, press and hold the PC Key on
the Display panel until the Test Tone starts.
• Last Fault Codes are displayed initially. The
Cut window will display “
LF[
” and the Coag
window will display the software revision
number for approximately 3 seconds, then the
Last Fault Code will be displayed. (See the
section on Last Fault Codes.)
• Press the PC Key again and the configuration
DIP switch settings will be displayed. “0” is
for OFF and a “1” is for ON.
The eight-position configuration DIP switch (S2),
located on the Controller PCB Assembly (A4)
allows a qualified service technician to change
some of the factory default settings. The default
switch is only read during Power On Self Test
(POST) or when the system is powered on, so
any changes to the switch positions should be
made with the main power off. Each switch is
OFF in the down position and ON in the up
position. Relevant information for each switch is
described in Table 4.9 and the positions are illus-
trated in Figure 4.2.
Figure 4.2 DIP Switch Positions
CUT
COAG
BIPOLAR
1
1
0
0
0
0
0
0
O
N
1
2
3
4
5
6
7
8
TEST
CAL
SCOAG
DCUT
LAST
PCEN
