Troubleshooting - Zeiss Humphrey FDT 710 User Manual

4-8
Calibration and Set-up
In accordance with applicable EU guidelines and national regulations at the time at which
the product was brought onto the market, the product specified on the consignment note
is not to be disposed of via the domestic waste disposal system or communal waste
disposal facilities.
For further information on disposal of this product, please contact your local dealer or the
manufacturer or its legal successor company. Please read the latest Internet information
provided by the manufacturer.
Where the product or its components are resold, the seller must inform the buyer that the
product is to be disposed of in accordance with the currently applicable national
regulations.

Troubleshooting

The INSTRUMENT TESTS MENU (from the UTILITIES MENU) provides the ability to test the
instrument's inputs, outputs, serial port and A/D circuitry, if needed, for troubleshooting.
Follow the menu choices to test the area of concern.
If the unit fails to power on (Operator LCD Display is off, no double beep), confirm:
• Approved power cord is connected to a power outlet and to the instrument Power
Cord Inlet
• Power Switch is on (I)
• Operator LCD Display contrast is set to allow the display to be visible (use the
triangular Up/Down Contrast Adjustment Buttons)
• Proper operating voltage selection
• Power outlet is live
• Fuses condition
Note: Refer to the Preparation for Use and Power On section of this manual for
instructions to select the proper operating voltage or to inspect or change the fuses.
If the instrument does not print out the results, confirm the foam shipping wedge has been
removed. Pull down the Paper Access Door below the Operator LCD Display) using the
Finger Tabs on the sides (near the top) and remove the foam shipping wedge if not already
removed. Close the printer door. Be sure the paper is sticking out through the slot in the
door. Failure to remove the shipping wedge will result in improper operation of the printer.
If the results printout is blank, confirm the paper is inserted correctly. Blank printouts will
occur if the printer paper is inserted backwards. Also, confirm the correct type printer paper
is being used. Improper paper type may cause blank or faint printouts. Refer to the Printer
Paper Replacement section of this manual for instructions.
If you have an instrument problem that you cannot resolve, refer to the Service Information
section of this manual for Technical Assistance information.
Humphrey FDT User Manual 2660021149532 Rev. B 2015-11