Owner`s manual

3. Remove the AA batteries and make sure the unit is not
plugged into the AC adapter or attached to a Macintosh.
4. Wait two minutes.
5. Replace AA batteries or plug into an AC adapter.
6. Turn the unit back on. If the text you entered is still there,
then the lithium battery is still good. If the text has disap-
peared and the screen is blank, then the lithium battery
has been discharged and should be replaced.
To replace the lithium battery, you must take the case apart.
See the Troubleshooting section for instructions. Please dis-
pose of the discharged lithium battery properly.
Power
When connecting the AlphaSmart to a computer, do not
connect the AC adapter. Using the AC adapter is not neces-
sary as the AlphaSmart will use the power available in the
keyboard cable, even if no batteries are installed.
The DC power jack input will accept a voltage 8 to 12 V DC
with a minimum current rating 100mA. Off-the-shelf AC
adapters may be used at your own risk.
The DC jack polarity is negative (grounded) on the outside
and positive in the middle (see Figure 12).
Figure 12. DC Jack Polarity
Full testing was done with the AC adapter from Intelligent
Peripheral Devices and use with any other AC adapter is not
guaranteed. If damage occurs because of use with another
AC/DC adapter, repair is not covered under the warranty.
Radio and Television Interference
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reason-
able protection against harmful interference in a residential
installation.
AlphaSmart Pro 31
Toxic Elements Statement
Each cell is a sealed container enclosing a nickel electrode, a
cadmium electrode and potassium hydroxide electrolyte. The
electrolyte is caustic. Avoid contact with skin or eyes. If acci-
dentally exposed, flush eyes with water immediately.
Do not incinerate or mutilate the battery, as this may cause
it to burst or release toxic materials. Do not short circuit, as
this may cause burns. Please dispose in accordance with
local, state, and federal regulations.
Use of Other Rechargeable Batteries
Rechargeable NiCAD AA batteries and rechargeable Alkaline
AA batteries may be used with the AlphaSmart. However,
these batteries must be recharged outside the AlphaSmart.
Plugging in the AlphaSmart to an AC adapter will not
recharge your removable AA batteries—only the AlphaSmart
rechargeable pack is recharged by the AA adapter.
Note: Many schools have reported better success with rechargeable
Alkaline batteries than the NiCAD batteries. The rechargeable
Alkaline batteries have 2–3 times the battery life of the NiCAD
cell and experience no “memory” problem.
Low Battery Indication
When your AA batteries or NiCad battery pack is getting low,
a message will flash on your screen:
Low Battery!!
The Low Battery message will appear 15 minutes to 1 hour
before the batteries are dead.
Lithium Battery
AlphaSmart also uses a secondary backup battery that is not
user-accessible. This 3V lithium coin cell battery (CR2032)
powers the memory, preventing data loss when the unit is
turned off and the primary AA or NiCad batteries are dead.
This lithium battery should be good for approximately 5–10
years. It is mounted in a socket and is replaceable. To deter-
mine if the 3V lithium battery has been discharged:
1. Enter some text into the AlphaSmart.
2. Turn the unit off.
30 AlphaSmart Pro