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2. GENERAL GUIDE
The following illustration shows the names of the main controls of the SF-4700L/4900L.
Mode Keys
Power OFF
Key
Power ON/
Clear key
Connector
Terminal
Light key
Setting Up the SF Unit
After batteries are loaded, use the following procedures to set up the SF Unit for operation.
To switch power on and off
1. Press ON to switch power on.
•
The initial screen for the mode that was seleted when you last switched power off appears on the
display.
•
lf either of the messages (A or B) shown bellow appears on the display, follow the procedures
described bellow.
Whenever you turn on the power of the SF Unit ,it performs a self-check before beginning operation.
If a problem is discovered during the self-check, the SF Unit displays one of the following messages.
Note
•
The above messages always appear in English, regardless of the system language setting.
If this is the first time you ever turned on the SF Unit...
Perform the RESET OPERATION on page 9.
If this is not the first time you are using the SF Unit...
There is probably a problem with the data in memory (data error). Note that once data is lost it cannot
be recovered. Such data errors are generally caused by one of the following problems.
•
Interruption of battery power.
•
Severe electrostatic charge, impact, change in temperature, or change in humidity.
•
Hardware problem.
Display
Numeric
Keys
Cursor Keys
Keyboard
Lock
— 5 —
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