A SYSTEMS MK20HD User manual

User’s Manual
Pan/Tilt/Zoom Camera
MK20HD

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English
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
1. Read these instructions – All the safety and
operating instructions should be read before this
product is operated.
2. Keep these instructions – The safety and
operating instructions should be retained for
future reference.
3. Heed all warnings – All warnings on the appliance
and in the operating instructions should be
adhered to.
4. Follow all instructions – All operating and use
instructions should be followed.
5. Do not use this apparatus near water – The
appliance should not be used near water or
moisture – for example, in a wet basement or
near a swimming pool, and the like.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in
accordance with the manufacture’s instructions.
8. Do not install near any heat sources such
as radiators, heat registers, stoves, or other
heat.
9. Do not defeat the safety purpose of the polarized
or grounding plug. A polarized plug has two
blades with one wider than the other. A grounding
plug has two blades and a third grounding prong.
The wide blade or the third prong is provided for
your outlet, consult an electrician for replacement
of the obsolete outlet.
10. Protect the power cord from being walked on or
pinched particularly at the plugs, convenience
receptacles, and at the point where they exit from
the apparatus.
11.
the manufacturer.
12. Use only with the cart, stand, tripod,
manufacturer, or sold with the
apparatus. When a cart or rack is
used, use caution when moving the
cart/apparatus combination to avoid
injury from tip-over.
13. Unplug the apparatus during lightning storms or
when unused for long periods of time.
14.
Servicing is required when the apparatus has
been damaged in any way, such as power supply
cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus has been
exposed to rain or moisture, does not operate
normally, or has been dropped.
15. CAUTION: These servicing instructions are
reduce the risk of electric shock, do not perform
any servicing other than that contained in the
do so.
16.
building-in space such as a book case or similar
unit, and remain a well ventilation conditions at
open site. The ventilation should not be impeded
by covering the ventilation openings with items
such as newspaper, table-cloths, curtains, etc.
17. WARNING: The mains plug/appliance coupler is
used as disconnect device, the disconnect device
shall remain readily operable.
18. This apparatus is for professional use only.
19. WARNING:
shock, do not expose this apparatus to rain or
moisture. The apparatus shall not be exposed to
liquids, such as vases, shall not be placed on
apparatus.
20.
an equilateral triangle is intended to alert
the user to the presence of non-insulated
“dangerous voltage” within the product’s
magnitude to constitute a risk of electric
shock.
Warning: To reduce the risk of electric shock, do
not remove cover (or back) as there are no user-
personnel.
The exclamation point within an equilateral
triangle is intended to alert the user to
the presence of important operating and
maintenance instructions in the literature
accompanying the appliance.
21. Protective earthing terminals. The
apparatus should be connected to a
mains socket outlet with a protective
earthing connection.
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
ATTENTION
AVERTISSEMENT: POUR REDUIRE LE RISQUE DE CHOC
ELECTRIQUE, NE RETIREZ P AS LE COUVERCLE (OU L'ARRIERE),
PAS DE PIECE RE PARABLE PAR L'UTILIS ATEUR A L'INTERIEUR
CONFIEZ LES RE PARATIONS A UN PERSONNEL QUALIFIE .
IMPORTANT SAFETY INSTRUCTIONS

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Placement
● This device may interfere with radio and
television reception. Do not use this device in
the vicinity of such receivers.
● Noise may be produced if wireless
communications devices, such as cell
phones, are operated in the vicinity of this
unit. Such noise could occur when receiving
or initiating a call, or while conversing. Should
you experience such problems, you should
relocate such wireless devices so they are at a
greater distance from this unit, or switch them
off.
● Do not expose the unit to direct sunlight, place
it near devices that radiate heat, leave it inside
an enclosed vehicle, or otherwise subject it to
temperature extremes. Excessive heat can
deform or discolor the unit.
● When moved from one location to another
where the temperature and/or humidity is very
different, water droplets (condensation) may
form inside the unit. Damage or malfunction
may result if you attempt to use the unit in this
condition. Therefore, before using the unit, you
must allow it to stand for several hours, until
the condensation has completely evaporated.
● Depending on the material and temperature
of the surface on which you place the unit, its
rubber feet may discolor or mar the surface.
You can place a piece of felt or cloth under the
rubber feet to prevent this from happening. If
you do so, please make sure that the unit will
not slip or move accidentally.
● Do not put anything that contains water on
this unit. Also, avoid the use of insecticides,
perfumes, alcohol, and nail polish, spray cans,
etc., near the unit. Swiftly wipe away any liquid
that spills on the unit using a dry, soft cloth.
viewing such images can cause headache,
nausea, or other discomfort. Do not use this
unit to create video that might cause these
types of health problems. Asystems will accept
no responsibility for any such health problems
that may occur in yourself or in viewers.
IMPORTANT NOTES
Read First!
Prior to the operation of this unit, please
thoroughly read through the Owner’s Manual
in its entirety, these sections provide important
and comprehensive information concerning the
proper operation of this unit.
The Owner’s Manual should be saved and kept
for future use and references.
The digital version of this manual is available
online at Asystems’ website for download.
Power Supply
● Do not connect this unit to same electrical
outlet that is being used by an electrical
appliance that is controlled by an inverter
or a motor (such as a refrigerator, washing
machine, microwave oven, or air conditioner).
Depending on the way in which the electrical
appliance is used, power supply noise may
cause this unit to malfunction or may produce
audible noise. If it is not practical to use a
separate electrical outlet, connect a power
supply noise filter between this unit and the
electrical outlet.
● To prevent malfunction and equipment failure,
always make sure to turn off the power on
all your equipment before you make any
connections.
● Although the LCD and LEDs are switched off
when the unit is turned off, this does not mean
that the unit has been completely disconnected
from the source of power. If you need to turn
off the power completely, first turn off the unit’s
switch, then unplug the power cord from the
power outlet. For this reason, the outlet into
which you choose to connect the power cord’s
plug should be one that is within easy reach
and readily accessible.
WARNING:
To prevent injury, this apparatus must
be securely attached to the floor/wall in
accordance with the installation instructions.
WARNING:
nstallation should only be performed by
qualified installation personnel. Improper
installation may result in the entire apparatus
falling down and causing injury.

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Overview........................................................................................... 1
Features ........................................................................................... 1
Characteristics .................................................................................. 2
MK20HD Parts and Functions .......................................................... 3
Check the Included Items ................................................................. 4
Precautions for Installation ............................................................... 6
Ceiling Mount Installation ................................................................. 8
Precaution for Use ............................................................................ 11
How to Connect the Unit................................................................... 12
Connections...................................................................................... 12
DIP Switch Setting ............................................................................ 13
Operating Precautions ...................................................................... 14
IR Remote ........................................................................................ 17
Camera Settings ............................................................................... 16
Layout of Wireless Remote Control IR Sensor Areas....................... 18
IR Remote Parts and Functions ....................................................... 19
Specications ................................................................................... 22
TABLE OF CONTENTS
Asystems reserves the right to alter any information contained
within this manual without prior notice.
V3 04/21/2017

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INTRODUCTION
Congratulations on purchasing your Pan/Tilt/Zoom Camera, the MK20HD, by Asystems!
Introducing MK20HD, the rst PTZ camera to the Asystems robotic camera series. Equipped with a
1/2.8” HD 2.4 Megapixel CMOS image sensor and a wide focal atio of 1.6 to 2.8 coupled with 30x optical
zoom, the MK20HD is A systems’ answer to the growing demand of full HD PTZ cameras.
The MK20HD utilizes a quiet direct-drive pan/tilt mechanism, allowing it to naturally blend in with the
environment and capture desired images without interfere with the ongoing program. Plus the compact
size and light weight body make MK20HD an ideal application to auditoriums, concerts, studios, reality
shows, as well as educational facilities.
Before operating and exploring the capabilities of the MK20HD, it is highly recommended that you
carefully read through Precautions for Installation and Safety Instructions section rst for safe operation
while avoiding hazardous situations.
OVERVIEW
● MK20HD is a compact, robotic, full HD camera integrated with a pan-tilt head and featuring
a 1/2.8” HD 2.4 Megapixel CMOS image sensor and a wide focal ratio of 1.6 to 2.8 coupled
with 30x optical zoom.
● Featuring an uncompromising and superior optical 30x zoom lens, the MK20HD achieves true
high-quality video shooting that overflows with ambiance.
● MK20HD supports RS422 and RS485 standard serial interface for long range signal
transmission for up to 1000 meter.
● MK20HD is design from the ground up to be fully compatible with Asystems’ array of video
products, including AV series video switchers and remote camera controller, MK20RC, each
sold separately.
FEATURES
● 1080P video output
● 30x Optical Zoom
● 1/2.8” Exmor™ CMOS 2.4 Megapixel Sensor
● Transmit HDMI video up to 70m via CAT5/6 cable
● Support PTZ VISCA Control Protocol
● Fast Pan & Tilt Speed (Pan: 300°/Sec; Tilt: 125°/Sec)
● Wide Pan Angle (360°)
● Full remote control function with MK20RC console; basic PTZ remote functions
with Asystems video switchers.
● Supports RS422 and RS485 for up to 1000m

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CHARACTERISTICS
● Exmor™ CMOS 2.4 Megapixel Sensor and high-performance 30x zoom lens featured
● Manual Night Mode
* Auto and manually adjustable iris and exposure settings for best viewing result in any given
condition, even in low-light condition.
● Easy operation of unit enabled by its integration with a high-performance pan-tilt head unit
* Fast Pan-Tilt speed, operations at the high speed of Panning: 300°/Sec; Tilting: 125°/Sec.
* Wide rotational angles with a panning range of 360° and a til ting angle of 125°
● High degree of compatibility with Asystems’ currently available controller, MK20RC and AV
series video switchers, enabling a flexible system set up.
* A maximum of five units can be operated by serial control from Asystems’ currently available
controller (MK20RC).
● Integrated pan-tilt head unit, camera and lens to facilitate installation
* By designing the camera, lens and pan-tilt head as a single integrated unit, the time taken for the
installation work has been drastically reduced.
● A wireless remote control is included for easy operation
* A wireless remote control capable of operating up to 3 units can be used. It can easily be used to
set the various functions or switch between them while viewing the menu screens.
● Flexible camera layout enabled by simple connection and installation
* The MK20HD features excellent connectivity and installation which enables the user to install it
with ease, may it be tabletop mounted or ceiling mounted.
Note: Please bear in mind that the unit is designed to be used in indoors only. Outdoor
environment and conditions will result in accelerated deterioration and damages to the unit.
Please only use this unit in a controlled outdoor environment.

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MK20HD PARTS AND FUNCTIONS
Tally Lights
144mm
197mm
Standby LEDPower LED
Front IR Sensor
125mm
RS485 Addr & IR Select
RS422/485 IN
DC Power Jack
Kensington Lock
HDMI 2 Out
HDMI 1 Out
SDI Out
Rear IR Sensor
Tally In
Front View
Front View

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swivel base
90mm
VESA Mount
5mm
75mm
Top View
Bottom View

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CHECK THE INCLUDED ITEMS
Upon unboxing the product, please carefully inspect the included items, in the unlikely event of any
missing or damaged items, please contact your authorized retailer/distributor for replacements.
MK20HD
IR Remote with 2 AAA Batteries
Ceiling Mount Brackets (A & B)
MK20HD Owner’s Manual
Drop Prevention Wire
Power Adapter
User’s Manual
Pan/Tilt/Zoom Camera
MK20HD
Main Unit Mounting Screw (M4) x 4
Bracket Mounting Screws (M3) x 3
Drop Prevention Wire Screws (M3) x 2
A
B

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PRECAUTIONS FOR INSTALLATION
To installation personnel
Read the “Installation Instructions” thoroughly and then perform the operation correctly and safely.
Also, always read the “Read this rst!” of this manual as they contain important information.
After the installation, give the “MK20HD Owner’s Manual” to the customer for future use.
Ensure that the installation work complies
with the technical standards governing
electrical equipment.
This unit is for indoor use only.
It cannot be used outdoors.
Avoid installation in a location where the unit
will be exposed to direct sunlight for extended
periods or near a cooling or heating appliance.
Otherwise, deformation, discoloration,
malfunctioning and/or problems in operation
may result. Operate the unit where it will not be
splashed or sprayed by water.
Use the unit with an installation where the
unit is suspended from an overhead surface
or with a stand‑alone installation.
Do not use the unit on its side or tilted at an
angle.
Concerning the installation location
Install the unit in a stable location which will not
be susceptible to shaking. If the unit is installed
in a location which is susceptible to shaking,
this will cause the unit’s images to shake in
turn.
Install the unit after conferring in detail with
your dealer.
Install the unit on a ceiling that is strong enough
(such as a concrete ceiling).
If the unit is to be installed on a ceiling which
is not strong enough, reinforce the ceiling
sufficiently first.
Do not install or use the unit in the following
kinds of locations.
● On walls or where the unit would be installed
sideways.
● In locations (including places such as under
the eaves of a building) where the unit would
be directly exposed to rain or water.
● In locations such as kitchens where there are
high concentrations of steam and grease.
● In outdoor locations or hot places where the
temperature will exceed 50 °C (122 °F).
● In cold locations where the temperature will
drop below 0 °C (32 °F).
● Locations where the humidity will exceed 85%.
● In locations where chemicals are used.
● At sea, in coastal areas or in locations where
corrosive gases are emitted.
● In locations where radiation, X-rays, or strong
radio waves or magnetic fields are generated.
● Locations where the unit would be subject to
a great deal of vibration such as on board a
vehicle or ship.
● In locations where the temperature is subject
to sudden changes such as near the air outlet
of an air conditioner or near a door which
allows the outside air to come in.
What to avoid to ensure that the unit will
perform stably over a prolonged period
● Using the unit for a prolonged period in a
location with high temperature and humidity
levels will cause its parts to deteriorate and
shorten its service life.
● Ensure that a cooling unit or heating unit will
not blow any air directly toward the installation
location.Be absolutely sure to use the
supplied brackets and screws to install the
camera
● Do not mount the unit by employing any
methods other than those specified.
● Do not remodel the mounting bracket or
mounting screws provided with the unit.
When the unit is no longer going to be used,
do not leave it lying around, but be absolutely
sure to dispose of it properly.
When installing, transferring or disposing of
the unit, be absolutely sure to hold it by its
pedestal area.

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Do not attach a filter, hood, extender or
other parts to the unit.
Use the dedicated AC adaptor and power
cable provided with the unit.
Connect the AC adaptor and power cable to the
power inlet securely.
Installing the AC adaptor
● Do not place the adaptor directly onto a
ceiling panel or other such surface. Extreme
danger is posed when water has collected
on the surface as a result of leaking rain,
for instance. Secure the adaptor firmly to
the bottom or other surface of a reinforcing
member made of channel steel where dust
and other foreign matter will not accumulate.
● Secure the adaptor firmly so that there
will be no chance that it will fall off or fall
down. Secure it using a strength which can
withstand the mass of the AC adaptor.
Install the accessory AC adaptor near the
main power outlet, and position it in such a
way that its power plug can be plugged into
and unplugged from the outlet easily.
When connecting the AC adaptor to a power
outlet on the ceiling or on any other surface
where dust may collect, wipe off the dust on
the power plug at periodic intervals as an anti-
tracking measure.
Power switch
This unit does not have a power switch.
The power turns on when its power plug is
connected to a power outlet. When the power
is turned on, the pan, tilt, zoom and focusing
operations are performed. Before proceeding
with maintenance, be absolutely sure to
disconnect the power plug from the power
outlet.
Connecting the power cable
Be absolutely sure to connect the power cable
of the AC adaptor through a circuit breaker using
one of the following methods.
(1) Connect the power cable through a power
control unit.
(2) Connect the power cable to a circuit breaker
in a power distribution panel with a contact
distance of 3.0 mm or more. Use a circuit breaker
which is capable of shutting off all the poles of
the main power supply with the exception of the
protective ground conductor.
(3) Install the AC adaptor near the power outlet,
and connect it through the power plug.
When connecting the cables, ensure that the
connector areas will not be subject to any
load.
Grounding
Before using the unit, check that the grounding
wire has been fastened securely.
Radio signal interference
If the unit is positioned near a TV or radio
transmitting antenna or a strong electrical or
magnetic field, its images may be distorted and/
or the images may be affected by noise.
Doing so may cause malfunctioning.
Allowing the generated heat to escape
This unit allows the heat generated inside to
escape from its surfaces.
Do not install the unit in a location where it will
be surrounded by walls or other surfaces and
where heat will be trapped. In addition, the heat
is dissipated to the bottom panel which will warm
up over time: This is normal and not indicative of
any trouble.
Asystems does not assume any responsibility for accident or damage during
installation if procedure in this manual is not followed.

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CEILING MOUNT INSTALLATION
The procedure given here is for the kind of installation where the unit is suspended from an overhead
surface, but the same steps are followed for a stand-alone installation.
● Before proceeding to install and connect the main unit, connect the video output cable,
interface cable, AC adaptor cable and coaxial cables in the space above the ceiling panel,
and then pass the cables through the cable holes.
● For a power outlet which is used on the ceiling, be absolutely sure to take measures to deal
with the tracking that may be caused by the accumulation of dust and other foreign matter.
1. Mount the mount bracket (B) onto the installation surface.
● Depending on the condition, different mounting screws can be used to secure the camera in
place. Consult a technician on the proper screws to use.
● For proper clamping torque, securely attach the screws using the specified tools.
● Do not use any other screws such as wood screws, nails, etc.
If the ceiling panel is not strong enough to bear the unit’s weight, use the
kind of mount bracket that is supported by anchor bolts between the concrete
ceiling and ceiling panel. The unit supports the ceiling mount bracket which
is used solely for combination cameras. Use this bracket to install the unit.
For installing the ceiling mount bracket, the ceiling must be drilled. It is also
recommended that you provide an inspection space or opening for access
purposes in the area near where the equipment is installed in order to
facilitate installation and the wiring connections work.

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2. Mount the bracket (A) to the MK20HD camera.
● Use the bracket mounting M4 screws supplied with the unit to attach the bracket (A) to the VESA mount
on the base of camera.
3. Attach the drop prevention wire.
● Use the M3 drop prevention wire screws to attach the wire in the middle of the brackets.
Main unit mounting screws (M4) x 2 (supplied)
(M4, bind-head)
Drop prevention wire screws (M3) x 2 (supplied)
Screw diameter Clamping torque
M4 1.47 N • m {15 kgf • cm}

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4. Mount the unit.
● The hooks on bracket (B) can be inserted to the corresponding holes to bracket (A) to form a
hinge, once inserted, turn the bracket (B) counterclockwise to lock it in place.
5. Secure the mounting brackets in place.
● Use the M3 screws on the exterior of the brackets to secure them in place.
Bracket mounting screws (M3) x 3 (supplied)

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PRECAUTION FOR USE
● Handle carefully
Do not drop the product, or subject it to strong shock or vibration
● Use the product in an ambient temperature of 32 °F to 122 °F (0 °C to 50 °C).
Avoid using the product at a cold place below 32 °F (0 °C) or at a hot place above 122 °F (50 °C).
Extremely temperatures will adversely affect the delicate parts of the unit. Room temperature of 77°F
± 5° (25°C ± 5°) is recommended operation temperature.
● Power off before connecting or disconnecting cables.
Be sure to switch the power off before plugging or unplugging the cables.
● Avoid humidity and dust.
Avoid using the product at a humid or dusty condition because much humidity and dust will cause
damage to the parts inside the unit.
● Maintenance
Clean the product using a dry cloth. To remove stubborn dirt, dip a cloth into a diluted solution of
kitchen detergent, wring it out well, and wipe the product gently. After wiping the product with a moist
cloth, wipe it again with a dry cloth.
Caution
● Avoid using benzene, paint thinners and other volatile fluids.
● If a cleaning chemical is to be used, carefully read through the precautions for its use.
● Precaution to be observed during production
This product’s image switching and image effect functions can be used to produce images which
flicker rapidly or images which change rapidly.
However, bear in mind when using these functions in production that the kinds of images produced
may have an adverse effect on the viewer’s physical well-being.
● Handling the optional boards
Be absolutely sure to turn off the power of the product before installing or removing any of the optional
boards.
Beware of sharp or pointy edges and metal parts of the boards when installing or removing the
optional boards.
● When the product is to be discarded
When the product is to be discarded at the end of its service life, ask a specialized contractor to
dispose of it properly in order to protect the environment.
● Concerning the consumable parts
Power supply unit: This is a consumable part. As a general rule, replace it every 5 years or so (when
the unit has been operated for 15 hours a day).
The period when the consumable parts need to be replaced will differ depending on the operating
conditions.
Ask your local dealer for the replacement service.

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CONNECTIONS
Camera 3
Tally
Camera 2
Tally
Camera 1
Tally
Tally
Splitter
Camera 4
Tally
Camera 5
Tally
Camera 3, 4&5
Tally
MK20RC
HOW TO CONNECT THE UNIT
1. Connect the video output cable via HDMI 1, HDMI 2 or SDI cable.
2. Connect the RJ-45 cable if the camera is to be controlled by a PTZ camera remote control.
3. Connect the AC adaptor and power cable that comes included with the camera.
4. Power on the camera by using the IR remote or a PTZ camera remote control to begin operation.
Note: This unit does not have a power switch. The power turns on when its power plug is connected
to a power outlet. When the power is turned on, the pan, tilt, zoom and focusing operations are
performed. Before proceeding with maintenance, be absolutely sure to disconnect the power plug
from the power outlet.

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DIP SWITCH SETTING
The DIP Switch on the back of the MK20HD is solely used for manually setting the unit’s ID. Each of
the five adjustable levers is correspondent to the common binary value. The first two levers are for
IR remote ID 1 to 3, the last three levers are RS485 connection ID 1 through 5 when the camera is
connected and controlled by a PTZ camera controller using the RS485 protocol.
Setting unit ID is particularly useful when multiple MK20HDs are deployed in an area, and user
can switch controls among multiple cameras with a single IR remote that comes included with the
MK20HD.
IR Remote ID Setting
As mentioned prior, only the first two levers are used for setting the IR remote ID 1 to 3. If the levers
are down, they represent 0s; if the levers are up, they represent 1s. Therefore, to set ID 1, the binary
value for 1 is 01, you need to set the first lever down and the second lever up.
To set ID 2, the binary value for 2 is 10, you need to set the first lever up and the second lever down.
To set ID 3, the binary value for 3 is 11, you need to set both levers to the up position.
RS485 ID Setting
For RS485 ID setting, only the last three levers are used. If the levers are down, they represent 0s; if
the levers are up, they represent 1s. The following decimal to binary conversion chart will offer a more
concise understanding on setting the unit ID.
Decimal Value Binary Value
1001
2010
3011
4100
5 101
Note 1: The IR Remote ID and RS485 ID do not collide with each other, a single MK20HD can have
a different IR Remote ID and RS485 ID.
Note 2: When MK20HD PTZ Cameras are using RS422 control protocol in conjunction with MK20RC
PTZ Camera Remote Control, all the RS485 IDs must be set to 1 (Binary value of 001).

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OPERATING PRECAUTIONS
Shoot under the proper lighting conditions
To produce pictures with eye-pleasing colors,
shoot under the proper lighting conditions.
The pictures may not appear with their proper
colors when shooting under fluorescent lights.
Select the proper lighting as required.
To ensure a stable performance in the long
term
Using the unit for prolonged periods in locations
where the temperature and humidity levels are
high will cause its parts to deteriorate, resulting
in a reduction of its service life.
(Recommended temperature: Max. 35 °C [95
°F])
Ensure that a cooling unit or heating unit will
not blow any air directly toward the installation
location.
Image persistence on the CMOS sensor
color filters
If parts of the CMOS sensor are exposed
continuously to spotlights or other bright lights,
the color filters inside the CMOS sensor will
deteriorate, and the parts concerned may
become discolored. The discoloration may
be noticeable when the direction of fixed
monitoring is changed.
Do not point the camera at strong light
sources
When parts of the CMOS sensor are exposed
to spotlights or other strong lights, blooming (a
phenomenon where the edges of strong lights
become blurred) may occur.
High‑brightness subjects
Flare may occur if an extremely bright light
source is pointed at the lens. In a case like this,
change the angle or take some other remedial
action.
When using the automatic functions
● If “Full Auto” has been selected as the setting
for Scene on the camera menu, for example,
all the auto settings will be turned on, and
manual operations will no longer be possible
for some of the items.
● When using the auto white balance function
under fluorescent lights, the white balance
may vary.
● In some situations, it may be hard to focus at
the auto setting. In cases like this, select the
manual setting, and focus manually.
● The appropriate brightness may not be
obtained when shooting bright objects using
the auto settings for the gain and iris. In cases
like this, set the shutter speed to manual, and
adjust.
Zooming and focusing
When the focus is set manually, out-of-focusing
may occur during zooming.
After zooming, if necessary, either adjust the
focus or set the focus to auto.
When using the focus at the manual setting,
proceed with zooming after setting the focus
position at the Tele end where the focusing
accuracy is higher.
Concerning the zoom position when the
power is turned on
When the unit’s power is turned on, the zoom,
focus and iris return to the positions they
occupied immediately before the power was
turned off. (This happens for the focus and iris
when they were set manually.)
However, this position may not be restored if,
for instance, the power cable was disconnected
during operation.
Operating temperature range
Avoid using the unit in cold locations where
the temperature drops below 0 °C (32 °F) or
hot locations where the temperature rises
above 50 °C (122 °F) since these temperatures
downgrade the picture quality and adversely
affect the internal parts.

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Turn off the power before connecting or
disconnecting the cables.
Always be sure to turn off the power before
connecting or disconnecting the cables.
Handle the unit carefully
Do not drop the unit or subject it to strong
impact or vibration. Doing so may cause the
unit to malfunction.
When the unit is not in use
Turn off the unit’s power when it is not in use.
When the unit is no longer going to be used, do
not leave it lying around, but be absolutely sure
to dispose of it properly.
Do not touch the optical system parts
The optical system parts are the very heart of
the camera.
Under no circumstances must they be touched.
In the unlikely event that they have become
dusty, remove the dust by using a camera
blower or by wiping them gently with a lens
cleaning paper.
Do not point the camera directly at the sun
or a laser beam no matter it is turned on or
not
Taking images of the sun, laser beams, or other
brightly lit subjects for prolonged periods of time
may damage the CMOS sensor.
Personal computer used
If the same image is displayed for a prolonged
period on a PC monitor, the monitor may
be damaged. Use of a screen saver is
recommended.
Do not allow foreign matter to make contact
with the rotating parts
Otherwise, damage may be caused.
Maintenance
Turn off the unit’s power before proceeding
with maintenance. Otherwise, you may injure
yourself.
Wipe the surfaces using a soft dry cloth. Avoid
all contact with benzene, paint thinners and
other volatile substances, and avoid using
these substances. Otherwise, the casing may
become discolored.
Do not turn the camera head by hand
Turning the camera head by hand may cause
the unit to malfunction.
Use the unit in an environment with minimal
moisture and dust
Avoid using the unit in an environment with
high concentration of moisture or dust. These
conditions will damage delicate internal parts.
Disposal of the unit
When the unit has reached the end of its service
life and is to be disposed of, ask a qualified
contractor to dispose of the unit properly in
order to protect the environment.

16
MK20HD
English
IR REMOTE
The MK20HD comes equipped with a wireless remote, and the unit can be operated by using the
wireless remote control.
Check out the following points before using the wireless remote control.
● Point the wireless remote control at the unit’s wireless remote control IR sensor areas (shown
in the figures), and operate it within a range of 10 meters (32.8 ft) from these areas.
● The signal sensing distance is reduced if the angle at which the wireless remote control
signals are sensed is increased.
The signal sensing sensitivity is approximately halved at an angle of 40 degrees from the front of the
signal light sensing area.
If the remote control is operated from the behind the unit, it may be either difficult or impossible to
perform the desired operations.
● If the unit is installed near fluorescent lights, plasma monitors or other such products or if the
unit is exposed to sunlight, the effects of the light may make it impossible for the unit to be
operated using the wireless remote control.
Be sure to follow the steps below for installation and use.
● Take steps to ensure that the light-sensing area will not be exposed to the light from
fluorescent lights, plasma monitors or other such products or from the sun.
● nstall the unit away from fluorescent lights, plasma monitors and other such products.