ENHANCED VISION Pebble User manual

Screen Size
4.3” or 3.5”
4.3” or 3.5”
Users Manual
TM

Congratulations on your purchase of the Pebble
from Enhanced Vision. The Pebble is a handheld
electronic video magnifier that you can take
anywhere. Weighing less than 8 ounces, Pebble
features a uniquely-designed folding handle and
includes both near-viewing and table reading
modes. Small enough to fit in your pocket or purse,
the Pebble is the ideal companion to provide
magnification, on the go.
With the Pebble, you can easily read bank
statements, coupons, prescriptions, restaurant
menus, sign checks - anywhere you need portable
magnification. The pebble provides hours of low
vision enhancement.
Featuring a built-in, LCD screen (3.5” or 4.3”), the
Pebble allows you to magnify images up to 10
times. A built in Freeze-Frame feature allows you to
capture any still image and adjust magnification. Six
different viewing modes allow you to choose
alternate color combinations based on your
personal preference.
The Pebble includes a convenient carrying case, a
built-in wriststrap, rechargeable batteries and has
an integrated battery charger. Pebble comes with a
2 year warranty.
This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) This device may
not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause
undesired operation.
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 reasonable
protection against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the
following measures:
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
– Consult the dealer or an experienced radio/TV technician for
help.
Unauthorized changes or modication to this system can void the
user’s authority to operate this equipment.
If your Low Vision device has an option to connect to a TV, it
must be used with shielded interface cables in order to meet FCC
emissions limits for Class B digital devices. It is the responsibility
of the user to use the shielded interface cables supplied with the
equipment.
FCC COMPLIANCE NOTICE
FCC ComplianCe notiCe

Chapter 1: Safety Precautions
General guidelines 6
Transportation 7
Care & Maintenance 7
Chapter 2: Package Contents & Controls
Package Contents & Controls 8-9
Accessories 8-9
Chapter 3: Using the Pebble
Power Options 10
Connecting the Power supply 10
Turning the Power On/Off 11
Adjusting the image size 11
Viewing modes 12
Freezing an image 13
Adjusting LCD Brightness 14
Adjusting the Handle 15
Reading & Hand-Held Position 16
Writing & Hands-Free/Desktop Position 17
Chapter 4: Charging & Using Batteries
Using Rechargeable Batteries 18
Opening & Closing the Battery Compartment 19
Battery Charging Procedure 20
Battery Charger Status Indicators 20
Chapter 5: Tips for using the Pebble
Attaching the wrist Strap 21
Using the Carrying Case 21
Chapter 6: Advanced Features
Turning LED On/Off 22
Static/Dynamic LED modes 23
Chapter 7: Troubleshooting
Troubleshooting 24-25
Chapter 8: Specications
Specifications 26-27
Chapter 9: Warranty Information
Warranty Information 28-29
Chapter 10: Other Enhanced Vision Products
Other Enhanced Vision Products 30-33
table oF Contentstable oF Contents

76 Chapter 1 saFety preCautions
Chapter 1 saFety preCautions
For your safety and to obtain the most benefit and
life from the Pebble, please read these important
safety precautions carefully.
General guidelines for use:
▶Follow all warnings, cautions, and instructions
marked on the product.
▶Do NOT attempt charging alkaline batteries with
the Pebble. Doing so will void your warranty and
could cause damage to the product and/or pose
personal safety risks.
▶Use care when transporting the Pebble. While
in use, securely attach and use the wrist strap to
avoid damage to the Pebble caused by accidental
droppage.
▶Use care when using the Pebble outdoors – it
should NOT be exposed to extreme or rapid
changes in temperature or humidity.
▶Do not place the Pebble near a radiator, heater or
areas exposed to long hours of direct sunlight.
▶Prevent the risk of electrical shock by NOT at-
tempting to disassemble the unit. Please refer all
service to an authorized repair facility.
▶Do not use the Pebble in, near or around water.
The Pebble is not designed to offer protection
against contact with liquids of any kind.
▶Do not use the Pebble during an electrical storm,
lightning, or other severe weather.
▶Do not use the Pebble near open ames, am-
mable materials or liquids.
Transportation:
▶Pebble comes with a convenient carrying case
for transport. To prevent the unit from being acci-
dentally dropped and damaged, always return the
Pebble to the carrying case while not in use.
▶This product is intended to be used as a portable
device. Please use care when connecting/discon-
necting cables and accessories.
Care & Maintenance:
▶Always turn the power OFF on the Pebble when
the system is not in use.
▶To prolong battery life, remove the battery from
the Pebble if the system is not being used for one
week or more.
▶If needed, clean the surface of the Pebble with a
soft damp cloth or an electrostatic dusting wipe.
DO NOT use liquid cleaners on the plastic sur-
faces. No additional methods of sterilization or
cleaning are recommended or required.
Susceptibility to Interference:
There may be temporary performance degradation
of the Pebble when subjected to a strong magnetic
and/or radio-frequency field, electrostatic discharge
or transient electrical noise. An electrostatic
discharge (caused by static electricity) may cause
image distortion. If this happens, switch the unit off
and try moving the unit to a different location.
SAFETY PRECAUTIONS

98 Chapter 2 paCkage Contents & Controls
Chapter 2 paCkage Contents & Controls
1. Pebble
2. Wrist Strap (Lanyard)
3. Carrying Case with belt clip
4. AC adaptor power supply (style may vary)
5. Rechargeable NiMH Batteries
(included inside Pebble)
6. Lens Cloth
A. Freeze-Frame (Snapshot) Button
B. LCD Screen
C. LCD Brightness Switch (recessed)
D. Size Button (Magnication)
E. Power Supply Input Port (DC IN)
F. Viewing Mode Button
G. Adjustable Handle
H. Power Button (On/Off)
I. Camera Lens
J. LED Lighting
K. Battery Compartment (Integrated Charger)
Please refer to the illustrations on the next page to
identify the package contents and controls of your
Pebble. In addition to this users guide, you’ll find the
following items inside the box:
Please note the locations of the following controls
on your Pebble:
K
5
1
2
A
G
J
I
C
D
H
B
E
F
3
6
4
PACKAGE CONTENTS & CONTROLS

1110 Chapter 3 using the pebble
Chapter 3 using the pebble
Figure 1
Figure 2
Power Options
Your Pebble can be powered using:
▶The included AC adaptor/power supply
▶Rechargeable batteries (included)
When using the Pebble for the first time, please
power the unit using the included AC Adaptor/power
supply. This will ensure that the rechargeable
batteries can fully charge, even while the Pebble is
in operation. Although regular Alkaline batteries may
work to power the Pebble, the battery life may vary
and will be reduced significantly compared to using
rechargeable batteries.
Connecting the AC adaptor/power supply
Use the following procedure to connect the Pebble
to the AC adaptor/power supply:
1) Connect the tip of the included
AC adaptor/power supply to the
DC IN port on the bottom edge of
the Pebble (See Figure 1).
2) Plug in the remaining end of the
AC adaptor/power supply to an
available AC wall outlet (mains)
(See Figure 2).
Turning the Power On/Off
Use the following procedure to turn the power of
your Pebble On or Off:
Adjusting the Image Size
Use the following procedure to adjust the displayed
magnification (size) of the LCD image.
1) Find the green, recessed
POWER button located on the top
side edge of your Pebble.
(See Figure 1)
2) Press and hold the POWER
button to turn the Pebble on.
Shortly, an image should appear
on the LCD display. To turn off the
Pebble, press and hold the
POWER button again (Figure 2).
Note: A short, conrmation tone (“beep”) will be
heard when the unit is powered On or Off.
1) Find the SIZE button located on
the lower right face of your Pebble
(See Figure 3).
2) Press the SIZE button to
change the magnification size on
the LCD. Pressing this button will
continuously cycle through all 3
magnification sizes (See Figure 4).
Figure 3
Figure 1
Figure 4
Figure 2
USING THE PEBBLE

1312 Chapter 3 using the pebble
Chapter 3 using the pebble
Selecting the Viewing mode:
Use the following procedure to select the viewing
mode of the image on the LCD display:
1) Find the MODE button located
on the face of your Pebble
(See Figure 1).
2) Press the MODE button to
continuously cycle through the 6 pre-set
viewing modes. To change your viewing mode to
any of the 28 available follow instructions below.
Changing pre-set viewing modes:
Your Pebble has 4 set viewing modes (full-color,
black & white, enhanced positive, & enhanced
negative) and 2 that can be changed to any of the 28
available. Use the following procedure to select
between the 28 available color modes:
1) Toggle the Pebble with the
MODE button (See Figure 1) to the
color select mode #1 or #2.
2) While holding down the
FREEZE button (See Figure 2),
toggle through the 28 color select
modes by pressing either the ZOOM
(+/-) or MODE button. Once you
identify the desired color select
mode, release the FREEZE button.
The Pebble will now store this color
select mode until changed.
3) Repeat step 2 to change the pre-set color select #2.
Figure 1
Figure 1
Freezing an Image (Snapshot function)
If desired, you can take a temporary snapshot
(freeze) an image on the display. You can also adjust
the size and color modes after freezing an image.
This feature is quite useful for reading price tags,
prescriptions or other information that may need to
be temporarily captured. Use the following procedure
to take a snapshot (freeze) the image on the display:
1) Find the FREEZE button
located on the top face of your
Pebble (See Figure 1).
2) Press the FREEZE button to
capture the image (See Figure 2).
Pebble will sound a short
confirmation tone (“beep”) when
the image is captured. After
capturing the image, you can
adjust the size or color modes as
described previously on pages 11
& 12.
3) Press the FREEZE button
again (Figure 2) to exit and
resume normal operation of your
Pebble. Turning off the power of
your Pebble will also clear the
frozen image (See Figure 3).
Figure 1
Figure 2
Figure 2
Figure 3

1514 Chapter 3 using the pebble
Chapter 3 using the pebble
1) Find the small LCD
brightness control slide switch
located on the top side of your
Pebble (See Figure 1).
2) Using the tip of a ball-point
pen (or other sharp-pointed
object), slide the brightness
control switch to choose one of
the 3 available LCD brightness
settings (See Figure 2).
Left = Lowest Brightness
Center = Medium Brightness
Right = Highest Brightness
Adjusting LCD Brightness
Your Pebble is designed to provide the brightest
image possible on the LCD display when shipped
from the factory. If desired, use the following
procedure to manually adjust the brightness of the
LCD display:
Note: The Highest LCD brightness setting is the
nominal setting and should be used in most cases.
Lowering the LCD brightness settings may help to
extend the running time of the Pebble.
Figure 1
Figure 2
Adjusting the Handle
The Pebble features a unique, adjustable handle
that can both rotate and/or extend, allowing you to
easily magnify a wide variety of objects in multiple
settings. Refer to the illustration below for more
information on how the handle can be positioned
according to your needs.
200˚ Rotation
3”- 4” Extension (on 3.5” LCD only)
Please refer to the next two pages for more
information on how to adjust the handle of
your Pebble and specic applications for use.

1716 Chapter 3 using the pebble
Chapter 3 using the pebble
Reading Position (fully closed)
Close the handle completely into a folded position
Adjusting the handle in this position is convenient for
reading a book, pamphlet or other printed text.
(See Figure 1a & 1b)
Hand-Held Position (180˚ open)
Open and extend the handle as shown below.
Adjusting the handle in this position is convenient for
magnifying a wide variety of objects.
(See Figures 2a & 2b)
Figure 1b
Figure 1a
Figure 2a Figure 2b
Depending on your application, use the
guidelines listed on the next two pages for more
information on adjusting the handle for your
particular magnication needs...
Hands-Free/Desktop Position
Open the handle at a slight angle for hands-free or
desktop use. Adjusting the handle in this position is
convenient when both hands are needed to perform
other tasks. (See Figures 4a, 4b & 4c)
Writing Position (200˚ open)
Open the handle completely until it is fully rotated.
Hold the handle flush with your writing surface. The
viewing screen will tilt upward leaving enough room
to write. (See Figures 3a & 3b)
Figure 3b
Figure 3a
Figure 4a
Figure 4c
Figure 4b

1918 Chapter 4 Charging & using batteries
Chapter 4 Charging & using batteries
UNLOCK
LOCK
Important Points When Using Battery Power
▶If your Pebble will not be in use for 4 weeks or more,
it is recommended that you remove the batteries.
▶The Pebble should ONLY be used with recharge-
able batteries.
▶Rechargeable batteries should be rated at
2500mAh or greater.
▶Rechargeable batteries should be fully charged
prior to rst use.
▶Using new batteries, your Pebble should last over
1.5 hours when fully charged. The total usage time
will gradually reduce with subsequent charges.
▶It is not recommended to use standard “AA” batter-
ies (or alkaline) inside the Pebble. Standard batter-
ies are not capable of being recharged inside the
Pebble charging system.
Using Rechargeable Batteries
Your Pebble includes two, rechargeable Nickel-Metal
Hydride (NiMH) batteries that can be continuously
charged inside the Pebble, even while the unit is in
operation (see page 10). It is recommended to leave
the unit connected with the included AC adaptor
when the unit is not in use to maintain a continuous
charge on the batteries. This way, your Pebble will
always be ready for portable use. It is not possible to
overcharge the included Nickel-Metal Hydride (NiMH)
batteries. Please refer to the instructions on the next
few pages for more information on replacing and
charging the batteries.
Figure 1
Figure 3
Figure 4
Opening & Closing the Battery Compartment
1) Close the handle and locate
the battery compartment door
(See Figure 1).
2) Using your fingernail or small
coin, press down and slide the
latch downward to the “UNLOCK”
position as shown.
(See Figures 1 & 2)
3) Lift the battery cover to access
the batteries. Remove (or install)
2 rechargeable NiMH batteries.
Pay close attention to the battery
polarity markings found on the
inside of the battery
compartment.**
(See Figure 3)
4) To replace the battery cover,
align the cover as shown over
the battery compartment. Using
your fingernail or small coin,
press down and slide the latch
upward to the “LOCK” position
as shown.
(See Figures 1 & 4)
Figure 2
**Please note that each battery is inserted
with the polarity facing in the same direction.
CHARGING & USING BATTERIES