Mitsubishi Electric PocketProjector PK20 User manual

EN-1
LED Projector
MODEL
PK20
User Manual
This User Manual is important to you.
Please read it before using your projector.

EN-2

EN-3
The lightning flash with arrowhead symbol within
an equilateral triangle is intended to alert the user to
the presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of
sufficient magnitude to constitute a risk of electric
shock.
The exclamation point within an equilateral triangle
is intended to alert the user to the presence of
important operating and maintenance (servicing)
instructions in the literature accompanying the
appliance.
WARNING:
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT
EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION:
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS
AC ADAPTER’S PLUG WITH AN EXTENSION CORD,
RECEPTACLE OR OTHER OUTLET.
NOTE:
WHEN USING THE AC ADAPTER, THE SOCKET-OUTLET
SHALL BE INSTALLED NEAR THE EQUIPMENT AND
SHALL BE EASILY ACCESSIBLE.

EN-4
WARNING
Only use the attached specified AC adapter and power
cord. If you use another AC adapter and power cord, it
may cause interference with radio and television reception
or damage your projector.
The attached AC adapter and power cord are to be used
exclusively for this product. Never use them for other products.
DO NOT LOOK DIRECTLY INTO THE LENS WHEN
THE PROJECTOR IS IN THE POWER ON MODE.
CAUTION
Not for use in a computer room as defined in the Standard
for the Protection of Electronic Computer/Data Processing
Equipment, ANSI/NFPA 75.
When using the projector in Europe:
COMPLIANCE NOTICE
This Projector complies with the requirements of the EC
Directive 89/336/EEC “EMC Directive” as amended by
Directive 92/31/EEC and 93/68/EEC, and 73/23/EEC “Low
Voltage Directive” as amended by Directive 93/68/ EEC.
The electro-magnetic susceptibility has been chosen at a
level that gains proper operation in residential areas, on
business and light industrial premises and on small scale
enterprises, inside as well as outside of the buildings. All
places of operation are characterised by their connection
to the public low voltage power supply system.
Your MITSUBISHI ELECTRIC product
is designed and manufactured with high
quality materials and components which
can be recycled and reused.
This symbol means that electrical and
electronic equipment, at their end-of-
life, should be disposed of separately
from your household waste.
Please, dispose of this equipment at
your local community waste collection/
recycling centre.
In the European Union there are
separate collection systems for used
electrical and electronic product.
Please, help us to converse the
environment we live in!
Note: This symbol
mark is for EU
countries only.
This symbol mark is
according to the
directive 2002/96/EC
Article 10 Information
for users and Annex
IV.

EN-5
Declaration of Conformity
Model Number : PK20
Trade Name : MITSUBISHI ELECTRIC
Responsible party : Mitsubishi Digital Electronics
America, Inc.
9351 Jeronimo Road, Irvine, CA
92618 U.S.A
Telephone number : [phone]
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.
Trademark, Registered trademark
Macintosh is registered trademark of Apple Computer Inc.
DLPTM, Digital Micromirror Device and DMD are all trademarks
of Texas Instruments.
Other brand or product names are trademarks or registered
trademarks of their respective holders.
Contents
Important safeguards......................................................6
Overview..........................................................................10
Power supply...................................................................11
Remote control..............................................................14
Installation.....................................................................16
Using the tripod...............................................................17
Basic connections...........................................................18
Preparation.....................................................................20
Basic operation.............................................................22
Menu operation.............................................................25
Using the SD card viewer..............................................29
Image adjustment............................................................34
Troubleshooting...............................................................36
Maintenance.....................................................................40
Indicators.........................................................................41
Specifications...................................................................43

EN-6
Important safeguards
Please read all these instructions regarding your projector
and retain them for future reference. Follow all warnings
and instructions marked on the projector.
1. Read instructions
All the safety and operating instructions should be
read before the appliance is operated.
2. Retain instructions
The safety and operating instructions should be
retained for future reference.
3. Warnings
All warnings on the appliance and in the operating
instructions should be adhered to.
4. Instructions
All operating instructions must be followed.
5. Cleaning
Unplug this projector both from the wall outlet and
battery before cleaning it. Do not use liquid aerosol
cleaners. Use a damp soft cloth for cleaning.
6. Attachments and equipment
Never add any attachments and/or equipment without
the approval of the manufacturer as such additions
may result in the risk of fire, electric shock or other
personal injury.
7. Water and moisture
Do not use this projector near water or in contact with
water.
8. Accessories
Do not place this projector on an unstable cart, stand,
tripod, bracket or table. Use only with a cart, stand,
tripod bracket, or table recommended by the
manufacturer or sold with the projector. Any mounting
of the appliance should follow the manufacturer’s
instructions and should use a mounting accessory
recommended by the manufacturer.
An appliance and cart combination should be moved
with care. Quick stops, excessive force and uneven
surfaces may cause the appliance and cart
combination to overturn.
9. Ventilation
Slots and openings in the cabinet are provided for
ventilation, ensuring reliable operation of the projector
and to protect it from overheating. Do not block these
openings or allow them to be blocked by placing the
projector on a bed, sofa, rug, or bookcase.
Ensure that there is adequate ventilation and that the
manufacturer’s instructions have been adhered to.
10. Power sources
This projector should be operated only from the type of
power source indicated on the marking label. If you are
not sure of the type of power, please consult your
appliance dealer or local power company.

EN-7
11. Power-cord protection
Power-supply cord should be routed so that it is not
likely to be walked on or pinched by items placed upon
or against it. Pay particular attention to cord at plug,
convenience receptacles, and points where it exit from
the appliance. Do not put the power cord under a
carpet.
12. Overloading
Do not overload wall outlets and extension cords as
this can result in a fire or electric shock.
13. Objects and liquids
Never push objects of any kind through openings of this
projector as they may touch dangerous voltage points or
short-out parts that could result in a fire or electric shock.
Never spill liquid of any kind on the projector, adaptor or
battery.
14. Servicing
Do not attempt to service this projector yourself. Refer
all servicing to qualified service personnel.
15. Damage requiring service
Unplug this projector from the wall outlet and refer
servicing to qualified service personnel under the
following conditions:
(a)If the power-supply cord or plug is damaged.
(b) If the adaptor or the battery is damaged.
(c)If liquid has been spilled, or objects have fallen
into the projector, adapter or battery.
(d)If the projector does not operate normally after
you follow the operating instructions. Adjust only
those controls that are covered by the operating
instructions. An improper adjustment of other
controls may result in damage and may often
require extensive work by a qualified technician
to restore the projector to its normal operation.
(e)If the projector has been exposed to rain or water.
(f )If the projector has been dropped or the cabinet
has been damaged.
(g)If the projector exhibits a distinct change in
performance- this indicates a need for service.
16. Replacement parts
When replacement parts are required, be sure that
the service technician has used replacement parts
specified by the manufacturer or parts having the
same characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock or other
hazards.
17. Safety check
Upon completion of any service or repair to this
projector, ask the service technician to perform safety
checks determining that the projector is in a safe
operating condition.
18. Keep appropriate method when recharge the battery.
19. The projector is a precision instrument. Please pay
attention on static electricity.

EN-8
WARNING:
Unplug the power cord or remove the battery immediately
if there is something wrong with your projector.
Do not operate if smoke, strange noise or odor comes out
of your projector, adaptor or battery. It may cause fire or
electric shock. In this case, unplug immediately and
contact your dealer.
Never remove the cabinet.
This product contains high voltage circuitry. An inadvertent
contact may result in an electric shock. Except as
specifically explained in User Manual, do not attempt to
service this product by yourself. Please contact your
dealer when you want to fix, adjust, or inspect the projector.
Do not modify the projector.
It can lead to fire or electric shock.
Do not keep using the damaged projector.
If the projector is dropped and the cabinet is damaged,
unplug the projector and contact your dealer for inspection.
It may lead to fire if you keep using the damaged projector.
Do not face the projection lens to the sun.
It can lead to fire.
The projector must be used with the provided AC adapter.
Damage caused by the use of an incorrect adapter is not
covered under the warranty.
Use correct voltage.
If you use incorrect voltage, it can lead to fire.
Only use the provided AC adaptor (02550-0029-00).
Do not place the projector on uneven surface.
Place the projector on a level and stable surface only.
Do not look into the lens when the projector is
operating.
It may hurt your eyes. Never let children look into the lens
when the projector is on.
Do not unplug the power cord or remove the battery
during operation.
It can lead to product failure, fire, electric shock or other
troubles.
Do not touch the air outlet grilles and bottom plate.
Do not touch them or put other equipment close to the air
outlet grilles because they become hot during operation.
The heated air outlet grilles and bottom plate may cause
injury or damage to other equipment. Also, do not put the
projector on a desk that is easily affected by heat.
Do not look into the air outlet grilles when projector is
operating.
Heat, dust, etc. may blow out of them and hurt your eyes.
Do not block the air inlet and outlet grilles.
If they are blocked, heat may be generated inside the projector,
causing deterioration in the projector quality and fire.
Don’t put upwards. Because of blocking exhausted hole.
Don’t drop.
Don’t throw it away.
Don’t project to person’s eyes.

EN-9
Do not use flammable solvents (benzene, thinner,
etc.) and flammable aerosols near the projector.
Flammable substances may ignite causing fire or
breakdown because the temperature inside the projec-
tor rises very high while the lamp is illuminating.
Place of installation
For safety’s sake, do not use the projector at any place
subjected to high temperature and high humidity.
Please maintain an operating temperature, humidity, and
altitude as specified below.
Operating temperature: between +41°F (+5°C) and
+95°F (+35°C)
Operating humidity: maximum 85%
Never put any heat-producing device under the
projector to prevent the projector from being
overheated.
Do not install the projector at a place that is unstable
or subject to vibration.
Do not install the projector near any equipment that
produces a strong magnetic field. Also refrain from
installing the projector near any cable carrying a large
amount of current.
Place the projector on a solid, vibration-free surface.
Otherwise it may fall, causing serious injury or damage.
Do not stand the projector on a table’s end. It may fall,
causing serious injury or damage.
Do not place the projector near air-conditioning unit or
heater to avoid the air outlet and inlet grilles from being
exposed to hot air.
COMPLIANCE NOTICE OF FCC
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.
Changes or modifications not expressly approved by
Mitsubishi could void the user’s authority to operate this
equipment.
COMPLIANCE NOTICE OF INDUSTRY CANADA
This Class B digital apparatus complies with Canadian
ICES-003.

EN-10
Overview
1
2
5
7
4
8
63
COMPUTER
VIDEO
COMPUTER
VIDEO
AUTO POSITION
AUTO POSITION
1 Focus ring
2 Control panel
3 Terminal cover
4 Terminal board
5 Air outlet grille
6 Lens
7 Remote control sensor (Rear side only)
8 Air inlet grille
Control panel
1 LAMP indicator
2 POWER indicator
3 CHARGE indicator
4 Four directional buttons
SXWkeys have also the
following function:
S: AUTO POSITION
button
X: VIDEO button
W: COMPUTER button
or VIEWER button
5 ENTER button
6 POWER button
7 MENU button
Terminal board
1 S-VIDEO terminal
2 VIDEO terminal
3 COMPUTER IN terminal
4 DC IN terminal
5 AUDIO IN terminal
6 AUDIO OUT(Earphone) terminal
7 SD Card slot
Bottom side
1 Battery latch
2 Rubber foot
3 Adjustable rubber foot
1 2 3
467 5
1 2 3
4
67 5
AUTO POSITION
COMPUTER VIDEO
1
22
3

EN-11
Power supply
Using the provided AC adapter or an optional Lithium-ion
rechargeable battery .
Warning:
The projector must be used with the provided AC
adapter. Damage caused by the use of an incorrect
adapter is not covered under the warranty.
Using the AC adapter
1. Insert the plug from the AC adapter into the DC IN terminal.
2. Insert the appropriate end of the power cord into the
AC adapter.
3. Insert the plug on the power cord into a wall outlet.
The POWER indicator lights red when using the
AC adapter.
Use appropriate power cord for your country.
Using the optional battery
The projector must be used with specified Lithium-ion
rechargeable battery (BT-PK20R). Charge the battery
before using the projector for the first time use. You may
also use the projector when charging the battery.
About the battery wear
Display time with battery (BRIGHTNESS MODE is set to
HIGH): 1.5 hours.
Display time with battery (BRIGHTNESS MODE is set to
STANDARD): 2.0 hours.
Display time with battery (BRIGHTNESS MODE is set to
LOW): 2.5 hours.
Important:
Display time varies according to the ambient
temperature and the status of battery.
After charging 500 times, it can shorten the half of
battery life and reduce its performance.
2
3
1

EN-12
4. Insert the plug from the AC adapter into the DC IN terminal.
5. Insert the appropriate end of the power cord into the
AC adapter.
6. Insert the plug on the power cord into a wall outlet.
The CHARGE indicator lights red when charging
is started and turns off when charging is completed.
We recommend that you full charge the battery
all the time.
Warning:
Do not change the battery except this method. It may
cause battery exploding.
Do not remove the battery from the projector when
operating.
When remove the battery from the projector, power
off the projector and unplug AC adaptor.
4
5
6
3. Match the battery carefully until it fits in place.
1. Move the battery latch to the open side.
VIDEO
COMPUTER
AUTO POSITION
For battery charging
Be sure to remove the adjustable rubber foot
before attaching the battery pack.
Keep the adjustable rubber foot in a safe place.
(such as the carrying bag)
2. Position the projector on the battery. Important:
Be sure to remove the battery pack before placing the
projector into the carrying bag. Otherwise, it can lead to fire.

EN-13
When you use the battery, please observe the following
safety precautions:
Warning:
Dispose of used batteries according to your local
regulations.
Please do not put battery into fire or heat, otherwise it
may cause heating, fire, rupture or explosion.
Please do not put battery away or transport it with kind
of electrically conductive like necklace, hairpin, etc.,
otherwise it may cause heating, fire, leakage or
explosion.
Neither the positive nor negative terminal of batteries
can touch any metal, otherwise it may cause heating,
fire, rupture or explosion.
Please do not poke battery with needle, hit, decompose
or try to transform it, otherwise it may cause heating,
fire, rupture or explosion.
Please do not use or put battery near fire or under
high-temp environment, otherwise it may cause
heating, fire, rupture or explosion.
When the projector is off, the charger works as
a fast charging mode. It takes approximately 4
hours to complete charging.
When the projector is on, the charger works as
a slow charging mode. It takes approximately 8
hours to complete charging.
The average charge time: 500 times (Less than 50%
of charge).
For battery removal
Slide the battery lock switches on the two sides to remove
the battery from the projector.
Condition LAMP (Green) POWER (Red)
Stand-by. Off On
When the lamp is on. On Off
Indicator

EN-14
Remote control
Catch
Battery holder
1 Power button
2 Four directional buttons
3 Enter button
4 Menu button
5 Volume buttton
6 Keystone button
7 Hi-Bright button
8 Computer button
9 Video button
10 Viewer button
11 Still button
12 Unplug button
13 Mute button
14 Auto button
For the first time use:
Remove the transparent
insulation tape by pulling it
before use.
For battery change:
1. Push the catch to the right
and remove the battery
holder.
2. Remove the old Lithium
coin cell and install new
one (CR2025). Ensure
that the side with the mark
“+” is up.
3. Push the battery holder
back into the remote
control until you feel a
click.
1
2
3
4
8
9
10
11
7
6
5
12
13
14

EN-15
Remote Control Precautions
Handle the remote control carefully.
Do not use the remote control if it got wet. Remove the
battery immediately. Make sure the remote control
and battery are dry before use.
Avoid excessive heat and humidity.
Do not place the battery upside down.
Keep the coin cell battery out of reach of children so
as not to allow them to swallow the cell battery.
Caution:
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type
recommended by the manufacturer.
Dispose of used batteries according to your local
regulations.
Do not recharge, disassemble or dispose of the battery
in fire.
Remove the battery of remote control if the remote
control is not used for a long time. Battery may explode
if misused.
Operating Range
The infrared signal operates by line-of-sight up to a
distance of approximately 16.4 feet (5 m) and within a 30-
degree angle of the remote sensor. The projector will not
function if there are objects between the remote control
and the remote sensor on the projector or if strong light
falls on the remote sensor. A weak battery will also prevent
the projector from operating.
This sample may be slightly different from actual range.
COMPUTER
VIDEO
AUTO POSITION
Approx. 30
o
Approx. 5m

EN-16
Installation
Layout of the projector
Image size varies depending on the distance between the
screen and the projector.
Front projection
Caution:
Do not place the projector on a carpet or any flammable
materials. It may cause damage or fire.
Place the projector at least 10 cm (or 4 inches) away
from the wall to prevent the air inlet grille and the air
outlet grilles that emit hot air from being blocked.
Do not use the projector in the following locations
and manners, which may cause fire or electric shock.
In a dusty or humid place.
In a sideways or upside-down position.
Near a heater.
In an oily, smoky, or damp place such as a kitchen.
In direct sunlight.
Where the temperature rises high, such as in a
closed car.
Where the temperature is lower than +41°F (or
+5°C) or higher than +95°F (or +35°C).
Important:
Do not apply force to the lens, because the lens may be
damaged.
L
W
A
B
H
AUTO POSITION
COMPUTER VIDEO
CD
L : Between the screen and the front edge of the projector
A : Height of the projected image under the horizontal line
Optical offset:
B: A 73:27
C: D 1:1
The above figures are approximate and may be slightly
different from the actual measurements.
Screen
Size
H(inch)
12
15
25
40
60
Projection
Distance
L(cm)
38
48
83
134
203
A(cm)
5
6
10
16
25
B(cm)
13
17
28
45
67
C, D (cm)
12
15
25
41
61

EN-17
Using the tripod
Mount the projector onto a tripod as shown in the illustration.
Important:
After attaching the tripod plate
onto the projector, be sure that
the adjustable rubber foot is
properly tighten.
Do not place the tripod on inclined
or unstable surfaces. This might
cause the projector to fall or tilt
over, causing injury and damage
to the projector.
Before you move the projector,
detached the projector and tripod.
Do not use excessive force when
handling the projector. This might
cause damage to the projector.
Keep the adjustable rubber foot
in a safe place (such as the
carrying bag).
Before placing the projector into
the carrying bag, be sure to place
back the adjustable rubber foot
at its original position on the
projector.

EN-18
Basic connections
This projector can be connected with various devices
such as a VCR, video camera, videodisc player, or
personal computer that have analog RGB output
connectors.
Important:
Make sure that the connected device is turned off
before starting connection.
Plug in the AC adapter of the projector and the
connected devices firmly. When unplugging, hold and
pull the plug. Do not pull the cord.
When the projector and the connected devices are
located too close to each other, the projected image
may be affected by their interference.
See the owner’s guide of each device for details about
its connections.
When AUDIO OUT is connected with the earphone or
external speaker, the sound will not come out from the
projector speaker.
Speaker output: Vin (max)= 0.74Vrms, the maximum
output is 1W at Vin (max).
NO sound will come out from the speaker or AUDIO
OUT if video signals are not input. Furthermore, the
sound cannot be adjusted as well.
When the SD card source is selected, the sound input
in AUDIO IN will not come out from the speaker or
AUDIO OUT.
VIDEO IN
S-VIDEO IN
to S-video output
to video output
VCR etc.
AUDIO IN
AUDIO OUT
to Audio output
Projector + AV device

EN-19
Projector + DVD player or HDTV
Some DVD players have an output connector for 3-line
fitting (Y, CB, CR). When connecting such DVD player with
this projector, use the COMPUTER IN terminal.
Important:
The terminal’s names Y, PB, and PRare given as
examples of when a HDTV decoder is connected.
The terminal’s names vary depending on the
connected devices.
Image may not be projected correctly with some DVD
players.
When AUDIO OUT is connected with the earphone or
external speaker, the sound will not come out from the
projector speaker.
Projector + Computer
For computer with D-SUB
Important:
When you use a longer RGB cable instead of the
common length cable, the image may not be projected
correctly.
Some computers require additional connectors or
analog RGB output adapters to be connected with this
projector. Contact your dealer for further information.
When AUDIO OUT is connected with the earphone or
external speaker, the sound will not come out from the
projector speaker.
For Macintosh
If your Macintosh has no video port, a monitor output adapter
is required. Contact your dealer for further information.
Some Macintoshes require a MAC adapter for the RGB
cable for connection with this projector. Contact your
dealer for further information.
COMPUTER IN
DVD Player or
HDTV decoder
AUDIO IN
AUDIO OUT
to Audio output
to monitor port
COMPUTER IN
Desktop type Laptop type
AUDIO IN
AUDIO OUT
to Audio output

EN-20
Caution:
Plug in the power cord firmly. When unplugging, hold
and pull the power plug, not the power cord.
Do not plug in or out the power cord with your hand
wet. It may cause electric shock.
Important:
Install the screen on a flat wall at 90 degrees to the floor.
Images may not be projected in a shape of a regular
rectangle or with its aspect ratio 4:3, depending on the
installation conditions of the projector and the screen.
To correct vertical keystone distortion:
On the remote control: press the KEYSTONE button
to display the keystone control bar, and adjust the
image by pressing the /buttons.
On the control panel: adjust KEYSTONE in the
INSTALLATION menu.
In the following cases:
Press the button. Press the button.
Preparation
Preparation for projection
1. Attach the provided AC adapter to the projector.
2. Plug the AC adapter in the wall outlet.
The POWER indicator lights red when using the
AC adapter.
Warning:
Do not look into the lens directly when the projector is
on.
Use 100-240 V AC 50/60 Hz to prevent fire or electric
shock.
Do not place any objects on the AC adapter and power
cord or do not place the projector near heat sources
to prevent damage to the power cord. If either the AC
adapter or power cord should be damaged, contact
your dealer for replacement because it may cause
fire or electric shock.
Do not modify or alter the AC adapter. If the AC adapter
is modified or altered, it may cause fire or electric
shock.