User's Manual Part 4

TROUBLESHOOTING AND SERVICE
Cleaning and Care
122 OMNI 3600 REFERENCE MANUAL
Step 3: Check the telephone line
1 Connect to a working telephone and check for a dial tone. If there is no dial
tone, replace the Telco cable.
2 If the problem appears to be with the telephone line, check with the party you
are trying to call to see if their system is operational. If they are not
experiencing difficulties with their line, contact the telephone company and
have your line checked.
3 If the telephone line works, contact your local VeriFone representative for
assistance.
Keypad Does Not
Respond
1 Check the display panel. If it displays the wrong character or nothing at all
when you press a key, follow the steps outlined in Terminal Display Does Not
Show Correct or Readable Information.
2 If pressing a function key does not perform the expected action, refer to the
user documentation for that application to be sure you are entering data
correctly.
3 Perform a local diagnostic test of the keyboard in system mode (refer to
System Mode Menu 5 in Chapter 3).
4 If the problem persists, contact your local VeriFone representative for
assistance.
Cleaning and
Care
This section discusses keeping the Omni 3600 terminal and Omni 3600 base
clean.
For normal dirt, use a clean cloth slightly dampened with water and a drop or two
mild soap. For stubborn stains, use alcohol or an alcohol-based cleaner.
Base Contacts
It is important that the exposed contacts in the docking cradle of the base stay
clean and unbent. Gently swab the contacts with alcohol or contact cleaner to
remove dirt.
CAUTION
Never use thinner, acetone, trichloroethylene, or ketone-based solvents
— these chemicals can deteriorate plastic or rubber parts.
Do not spray cleaners or other solutions directly onto the keypad or
display.
CAUTION
Avoid touching the contacts in the raised area in the center of the base. Finger
oils tarnish contacts, causing bad connections. If the battery charge state or
terminal power LEDs do not light when the terminal is docked or there is a high
occurrence of bad or incomplete data transfers, clean the contacts.