ConMed sabre 180, Service Manual

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4-10
8. While wires are inserted fully into TB1, tighten
the corresponding screw securely. Verify security
of the connection by pulling on the wires with
the pliers. Be careful not to damage insulation.
9. After all wires are connected and checked for
security, inspect your work carefully to ensure that
no loose strands appear outside TB1 and that all
connections are correct according to Figure 5.4.
10. Referring to Figure 5.4, replace mains fuses as
required with the correct rating for the new
mains voltage.
11. Prepare a label with the new mains voltage
and fuse rating and attach securely to the outside
of the rear panel near the mains inlet, A6J1.
12. Before closing the top cover, connect a short-
ing plug or single foil electrode to the Return
Electrode connector and either a hand switch or
foot switch to emit activation. Turn power switch
OFF.
13. Connect the power cord to the unit and to a
source AC power having the new voltage rating.
CAUTION: If either of the following checks
fails, IMMEDIATELY turn the power switch
OFF and recheck your work. Operation for
more than a few seconds with incorrect mains
strapping can cause permanent damage.
14. Turn power switch ON and verify normal
power-up sequence. Select SINGLE mode. Verify
RETURN lamp goes dark.
15. Observe A4CR1, the red LED near the rear
of the A4 Power PWB. Verify that A4CR1
brightens noticeably when the unit is activated
and gradually returns to original brightness after
deactivation. Normal activation indications
should operate.
16. If the above checks pass, close the top cover
and secure it with the two rear panel screws.
17. The unit may now be returned to service.
However, if equipment is available, the mains fre-
quency leakage and RF output checks in Sections
4.2.2 and 4.2.4 should be conducted to gain
added assurance that the unit is correctly
restrapped.
4.4.2 Power-up Default Selection
The factory configures the unit to power up using
the control panel setting stored in EEPROM dur-
ing the previous activation. This feature may be
overridden such that the unit always powers up
with:
•All power settings zero.
•DUAL Mode.
•Pure Cut.
•Monopolar Coag.
This option is selected by a jumper JMP1 on the
A3 Controller PWB.
Equipment:
•Phillips screwdriver.
•9/16'' (14mm) nutdriver.
•Needle-nose pliers.
Procedure:
1. Turn power switch OFF.
2. Open Top Cover and remove shield cover per
Section 5.2.
3. Locate 3-pin jumper JMP1 on the A3
Controller PWB. Notice that factory default posi-
tion is labeled "LST" and the override position is
labeled "0".
4. Carefully slide the 2-pin shorting jumper
upwards and off the jumper pins and slide it back
on in the new position. The center pin is com-
mon to both options.
5. With the Top cover still open, turn the power
switch ON.
6. Select powers and modes different from those
of the "0" option. Connect accessories as required
to permit activation in any mode; footswitch acti-
vation in Bipolar Coag is the most straightfor-
ward.
7. Activate the unit once and note the settings.
8. Cycle the power switch. Verify that the unit
powers up in the desired new configuration.