LSK 1500/1550 User Manual, March 2021
35
© 2017 Global Payments Inc.
CONFIDENTIAL
Cash Dispensing Unit (HCDU)
CDU Problem
Diagnostics
Failure to open COM port (COM4)
1. Check to ensure the correct CDU license key.
2. Check PC unit for CDU license key loading.
3. Check the power LED of CDU control board for
lights ON.
4. Check data cable from PC rear COM4 to CDU
control board for any loose connection.
5. Check DIP switches on CDU control board for
normal operation mode of #1 at UP and rest at
DOWN.
Failure to get cash from cassettes
1. Check to ensure the number of cassettes is set to
4 when it comes with 4 cassettes.
2. Check to ensure the cassette is fully inserted into
CDU docking position.
3. Inspect inside of cassette for jams.
4. Load cassette with cash when empty.
Note jam
1. Inspect note path from cassette to CDU front exit
to cash tray for note jammed inside.
2. Turn knob of belts to manually move note to
reject CST or to CDU exit to cash tray.