13511
17
Zoom out
Zoom in
Previous page
1/100
Next page
15
E
General Precautions
Never try to take the SF Unit apart.
Avoid strong impact and sudden temperature changes.
At very low temperatures, the display response time may slow down or the
display may fail completely. This is temporary and correct operation should
return at normal temperature.
To avoid serious damage to the SF Unit caused by leaking batteries, replace
batteries once every two years, regardless of how much you use the SF Unit
during that time.
Never use thinner, benzine or other volatile agents to clean the exterior of the
SF Unit. Instead, wipe it off with a soft cloth dampened in a solution of water
and a mild, neutral detergent. Wring the cloth out until it is almost dry.
If the SF Unit is exposed to strong electrostatic charge, the display may dim
or the SF Unit may lock up. To correct this situation, switch power off, and then
remove and then replace the batteries.
Do not press the keys with a pen, pencil or other sharp object.
The SF Unit may cause interference with radio or television reception. Keep
it away from such appliances when you are using it.
Leaving the backlight on for long periods greatly reduces battery life!
About the Power Supply
The SF Unit is powered by two CR2032 lithium batteries. Replace batteries as
soon as possible after low battery power is indicated by any of the following.
Low battery message appears on the display
Blank display when power is turned on
Dim display figures even after display contrast is adjusted
Failure of the backlight to turn on
Caution
All data stored in memory is lost if you remove both batteries at the
same time.
Be sure that you keep a separate copy of all important data that you
store in the SF Unit.
About the Power Supply
17


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Casio SF7990 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Casio SF7990 in the language / languages: English as an attachment in your email.

The manual is 0,92 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Casio SF7990

Casio SF7990 User Manual - French - 100 pages

Casio SF7990 User Manual - Spanish - 100 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info