Display Board
5-12 LigaSure Vessel Sealing Generator Service Manual
Regrasp Display
Q4 drives the discrete LP1 regrasp lamp on and off with seal mode operation only.
When Q4 is on, resistor R8 controls lamp LP1 current to control lamp brightness.
When received from the control board, a positive TTL level signal activates this
display.
Mode Select and Power Control Switches
The mode select and power control switches operate in an 8-bit control format:
The main microcontroller selects the BANK_0 enable switch through this path:
Port A (on the control board programmable peripheral, U3)
through
Connector J1
to
BANK_0 enable switch
When turned on, MOSFET Q5 activates the keyboard switches.
Command control signals KBD-01 through KBD-06, originating in the control
board, choose the up and down power select bit lines:
To read the switches, the main microcontroller enables BANK_0 and reads the
state of the keyboard switch return lines, KBD-00 through KBD-06 through the
following path:
BANK_0 enable switch
through
Connector J1
to
Port A (on the control board I/O expansion port, U2)
Bits No. of Wires Purpose
6 2, in pairs 1 pair for each of three operative
modes: seal, bipolar, and macrobipolar
1 1 memory recall function
1 1 BANK_0, enables the keyboard
membrane
Command Signals Function
KBD-01 and 02 Up/Down seal intensity select
KBD-03 and 04 Up/Down macrobipolar power select
KBD-05 and 06 Up/Down bipolar power select
KBD-00 Memory recall select
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
