evertz 5550 Operating Instructions Manual page 13

Evertz Technical Bulletin
Dated: 94/10/12
Revised: 94/10/12
Filename: B_RESET.DOC
Product Software Version:
Engineer: GDW
Product: 5500 Keykode Decoder
Topic: Factory Resets
Comments: Engineering Note
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The 5500 Keykode Reader may be reset to factory default parameters by the following procedure.
1. Make sure that the reader head is connected to the 5500.
2. Turn DEBUG MODE ON. Use SHIFT + FORMAT keys to enter the engineering setup menus.
Use the DOWN arrow key until the display shows "debug mode on" or "debug mode off". Use
the left or right arrow keys to select "debug mode on".
3.
4. Find the NOVRAM debug display. Use the SHIFT + DISPLAY keys to cycle through the various
displays until something resembling "00n 040001FF0000" is shown. The actual numerical values
are unimportant but there must be a lower case letter "n" as the third character.
5. Trigger the factory reset. Press the SHIFT + UP ARROW keys to start the factory reset. The
message "!COMPLETE RESET!" will be displayed briefly and then the 5500 will start into the
normal power up sequence.
6. Evaluate the new limits. After completing the power up sequence of events the display will show
"AIR READY N<>Y ?". Check that the reader head has no film or obstructions under the LED's.
Use the right arrow key to trigger the evaluation of the LED's and sensors. The software will
rapidly cycle through each sensor and determine a practical lower limit for the LED intensity. If
you choose to skip this test (by using the left arrow key) the lower limit will be set to 000 and the
"AIR READY..." message will be displayed on every power up. The lower limit must be properly
set to prevent the auto intensity routines from getting stuck at inappropriately low values.
B_RESET.DOC
5288 John Lucas Drive, Burlington, Ontario, Canada, L7L 5Z9
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Evertz Microsystems Ltd.
Tech Support: Phone 905-335-3700
Fax 905-335-3573
Internet: eng@evertz.com
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