Barco CINE 6 User manual

BARCO PROJECTION SYSTEMS
Date:21112002 Rev : 05 Art.No.:R5975819
CINE 6
R9002372
INSTALLATION MANUAL

Due to constant research, the information in this manual is subject to change without notice.
Produced by BARCO NV, Nov 2002.
All rights reserved.
Trademarks are the rights of their respective owners.
BARCO n.v./Projection Systems
Noordlaan 5
B-8520 Kuurne
Belgium
Tel : [phone]
Fax : [phone]
E-mail : [email protected]
Visit Barco at the web : http://www.barco.com
Printed in Belgium
Federal communication commission (FCC statement)
This equipment has been tested and found to comply with the limits for a class A digital device, pursuant to Part 15 of the FCC
Rules and EN55022. These limits are designed to provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation
of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.
Instructions to the user :
If this equipment does cause interference to radio or television reception, the user may try to correct the interference by one or
more of the following measures :
- re-orientation of the receiving antenna for the radio or television.
- relocate the equipment with respect to the receiver.
- plug the equipment into a different outlet so that the equipment and receiver are on different branch circuits.
- fasten cables connectors to the equipment by mounting screws.
Note : The use of shielded cables is required to comply within the limits of Part15 of FCC rules and EN55022.

Table of Contents
R5975819.05 BARCO CINE 6 21112002 _____________________________________________________________________________ i-1
TABLE OF CONTENTS
SAFETY INSTRUCTIONS ..........................................................................................................................................................1-1
On safety .............................................................................................................................................................................1-2
On installation.....................................................................................................................................................................1-2
On servicing ........................................................................................................................................................................1-3
On cleaning.........................................................................................................................................................................1-3
On repacking ......................................................................................................................................................................1-3
On illumination ...................................................................................................................................................................1-3
UNPACKING & DIMENSIONS ..................................................................................................................................................2-1
Unpacking ...........................................................................................................................................................................2-1
Projector dimensions ........................................................................................................................................................2-2
INSTALLATION GUIDELINES ...................................................................................................................................................3-1
Ambient Temperature Conditions ...................................................................................................................................3-1
Environment ........................................................................................................................................................................3-1
What about ambient light ? .............................................................................................................................................3-1
Which screen type? ...........................................................................................................................................................3-1
What image size? How big should the image be? ..................................................................................................3-1
Where to install the projector?........................................................................................................................................3-2
How to install the projector? ...........................................................................................................................................3-2
INSTALLATION SET UP ..........................................................................................................................................................4-1
Access to controls .............................................................................................................................................................4-1
Scan adaptation .................................................................................................................................................................4-2
PROJECTOR SET UP...............................................................................................................................................................5-1
Projector Set Up.................................................................................................................................................................5-1
Password mode.................................................................................................................................................................5-1
Setting the projector address ..........................................................................................................................................5-2
Power up mode .................................................................................................................................................................5-2
Baud rate for communication ..........................................................................................................................................5-2
POWER (MAINS) CONNECTION .............................................................................................................................................6-1
Power (mains) cord connection ......................................................................................................................................6-1
Input power (mains) voltage adaptation ........................................................................................................................6-1
Fuses ...................................................................................................................................................................................6-1
Switching on/off ..................................................................................................................................................................6-1
INSTALLATION ADJUSTMENTS .............................................................................................................................................7-1
Entering the adjustment mode .......................................................................................................................................7-1
Overview flow chart installation mode. ..........................................................................................................................7-1
Installation mode start up ................................................................................................................................................7-2
Optical lens focusing ........................................................................................................................................................7-4
Electrical focusing..............................................................................................................................................................7-4
Raster centering.................................................................................................................................................................7-5
CRT projection angle adjustment...................................................................................................................................7-6
Alignment of the projector. ...............................................................................................................................................7-8
APPENDIX A : G2 ADJUSTMENT.......................................................................................................................................... A-1
i

Safety Instructions
R5975819.05 BARCO CINE 6 21112002 ____________________________________________________________________________ 1-1
SAFETY INSTRUCTIONS
Notice on Safety
This equipment is built in accordance with the requirements of the international safety standards EN60950, UL 1950 and CSA C22.2
No.950, which are the safety standards of information technology equipment including electrical business equipment.
These safety standards impose important requirements on the use of safety critical components, materials and isolation, in order
to protect the user or operator against risk of electric shock and energy hazard, and having access to live parts.
Safety standards also impose limits to the internal and external temperature rises, radiation levels, mechanical stability and strength,
enclosure construction and protection against the risk of fire.
Simulated single fault condition testing ensures the safety of the equipment to the user even when the equipment's normal operation
fails.
INSTALLATION INSTRUCTIONS
Before operating this equipment please read this manual thoroughly, and retain it for future reference. Instal-
lation and preliminary adjustments should be performed by qualified BARCO personnel or by authorized BARCO
service dealers.
OWNER’S RECORD
The part number and serial number are located at the back side of the projector. Record these numbers in the spaces provided
below. Refer to them whenever you call upon your BARCO dealer regarding this product.
PART NUMBER :
SR. NUMBER :
DEALER :
SAFETY INDICATION ON THE PRODUCT
WARNING
TO PREVENT FIRE OR ELECTRICAL SHOCK HAZARD, DO
NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
1
FEDERAL COMMUNICATION COMMISSION (FCC STATEMENT)
This equipment has been tested and found to comply with the limits of a class B digital device, pursuant to Part 15 of the FCC
Rules and EN55022.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a
residential environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, 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.
Note : The use of shielded cables is required to comply within the limits of Part 15 of FCC rules and EN55022.
µAll the safety and operating instructions should be read before using this unit.
µThe safety and operating instructions manual should be retained for future reference.
µAll warnings on the equipment and in the documentation manuals should be adhered to.
µAll instructions for operating and use of this equipment must be followed precisely.

Safety Instructions
1-2 ___________________________________________________________________________ R5975819.05 BARCO CINE 6 21112002
A. Mains lead (Power cord) with CEE 7 plug :
The wires of the mains lead are colored in accordance with the following code.
Green & Yellow :Earth (safety earth)
Blue :Neutral
Brown :Line (live)
B. Power cord with ANSI 73.11 plug :
The wires of the power cord are colored in accordance with the following code.
Green / Yellow :Ground
White :Neutral
Black :Line (live)
On safety
1.This product should be operated from an AC power source.
This projector may be connected to an IT-power system.
Operating AC power voltage of the projector:
BARCO CINE 6 : Art. No. R9002372 (With Limopro + PFC 85Vac to 250Vac)
2.This product is equipped with a 3-wire grounding plug, a plug having a third (grounding) pin. This plug will only fit into
a grounding-type power outlet. This is a safety feature. If you are unable to insert the plug into the outlet, contact your
electrician to replace your obsolete outlet. Do not defeat the purpose of the grounding-type plug.
WARNING FOR THE CUSTOMER: THIS APPARATUS MUST BE GROUNDED (EARTHED) via the supplied 3 conductor AC power
cable. (If the supplied power cable is not the correct one, consult your dealer.)
3. Do not allow anything to rest on the power cord. Do not locate this product where persons will walk on the cord.
To disconnect the cord, pull it out by the plug. Never pull the cord itself.
4. If an extension cord is used with this product, make sure that the total of the ampere ratings on the products plugged
into the extension cord does not exceed the extension cord ampere rating. Also make sure that the total of all products
plugged into the wall outlet does not exceed 15 amperes.
5. Never push objects of any kind into this product through cabinet slots as they may touch dangerous voltage points or short
out parts that could result in a risk of fire or electrical shock.
Never spill liquid of any kind on the product. Should any liquid or solid object fall into the cabinet, unplug the set and have
it checked by qualified service personnel before resuming operations.
6. Lightning - For added protection for this video product during a lightning storm, or when it is left unattended and unused
for long periods of time, unplug it from the wall outlet. This will prevent damage to the projector due to lightning and AC
power-line surges.
On installation
1. Do not place this equipment on an unstable cart, stand, or table. The product may fall, causing serious damage to it.
2. Do not use this equipment near water.
3. Slots and openings in the cabinet and the back or bottom are provided for ventilation; to ensure reliable operation of the
product and to protect it from overheating, these openings must not be blocked or covered. The openings should never
be blocked by placing the product on a bed, sofa, rug, or other similar surface. This product should never be placed near
or over a radiator or heat register.
The projector should not be placed in a built-in installation or enclosure unless proper ventilation is provided.

Safety Instructions
R5975819.05 BARCO CINE 6 21112002 ____________________________________________________________________________ 1-3
On servicing
Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage potential
and risk of electric shock!
Refer all servicing to qualified service personnel.
Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following
conditions :
a. When the power cord or plug is damaged or frayed.
b. If liquid has been spilled into the equipment.
c. If the product has been exposed to rain or water.
d. If the product does not operate normally when the operating instructions are followed.
e. If the product has been dropped or the cabinet has been damaged.
f. If the product exhibits a distinct change in performance, indicating a need for service.
Note : Adjust only those controls that are covered by the operating instructions since improper adjustment of
the other controls may result in damage and will often require extensive work by a qualified technician to restore
the product to normal operation.
Replacement parts -When replacement parts are required, be sure the service technician has used original BARCO replace-
ment parts or authorized replacement parts which have the same characteristics as the BARCO original
part. Unauthorized substitutions may result in degraded performance and reliability, fire, electric shock
or other hazards. Unauthorized substitutions may void warranty.
Safety check -Upon completion of any service or repairs to this projector, ask the service technician to perform safety
checks to determine that the product is in proper operating condition.
On cleaning
Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp
cloth for cleaning.
-To keep the cabinet looking brand-new, periodically clean it with a soft cloth. Stubborn stains may be removed with a cloth
lightly dampened with mild detergent solution. Never use strong solvents, such as thinner or benzine, or abrasive cleaners,
since these will damage the cabinet.
-To ensure the highest optical performance and resolution, the projection lenses are specially treated with an anti-reflective
coating, therefore, avoid touching the lens. To remove dust on the lens, use a soft dry cloth. Do not use a damp cloth,
detergent solution, or thinner.
On repacking
Save the original shipping carton and packing material; they will come in handy if you ever have to ship your equipment. For
maximum protection, repack your set as it was originally packed at the factory.
On illumination
In order to obtain the best quality for the projected image, it is essential that the ambient light which is allowed to fall on the screen
be kept to an absolute minimum.
When installing the projector and screen, care must be taken to avoid exposure to ambient light directly on the screen. Avoid
adverse illumination on the screen from direct sunlight or fluorescent lighting fixtures.
The use of controlled ambient lighting, such as incandescent spot light or a dimmer, is recommended for proper room illumination.
Where possible, care should also be taken to ensure that the floors and walls of the room in which the projector is to be installed
are non-reflecting, dark surfaces. Brighter surfaces will tend to reflect and diffuse the ambient light and hence reduce the contrast
of the projected image on the screen.

UnpackingandDimensions
R5975819.05 BARCO CINE 6 21112002 ____________________________________________________________________________ 2-1
UNPACKING AND DIMENSIONS
Unpacking
To open the banding, pull on the clip as shown in the first drawing.
Take the projector out of its shipping carton and place it on a table.
Save the original shipping carton and packing material, they will come in handy if you ever have to ship your projector.
For maximum protection, repack your projector as it was originally packed at the factory.
Contents of the shipped box :
- 1 BARCO CINE 6
- 1 remote control + batteries (2 x 1.5V)
- 2 power cables with outlet plug type CEE7 and ANSI 73.11.
- owner's manual.
- installation manual.
- ceiling mount
2

UnpackingandDimensions
2-2 ___________________________________________________________________________ R5975819.05 BARCO CINE 6 21112002
Projector Dimensions

InstallationGuidelines
R5975819.05 BARCO CINE 6 21112002 ____________________________________________________________________________ 3-1
INSTALLATION GUIDELINES
3
Installation guidelines
Ambient Temperature Conditions
Careful consideration of things such as image size, ambient light level, projector placement and type of screen to use are critical
to the optimum use of the projection system.
Max. ambient temperature : 40 0C (104 0F)
Min. ambient temperature : 0 0C (32 0F)
Environment
Do not install the projection system in a site near heat sources such as radiators or air ducts, or in a place subject to direct sunlight,
excessive dust or humidity. Be aware that room heat rises to the ceiling; check that the temperature near the installation site
is not excessive.
What about ambient light ?
The ambient light level of any room is made up of direct or indirect sunlight and the light fixtures in the room. The amount of
ambient light will determine how bright the image will appear. So, avoid direct light on the screen. Windows that face the screen
should be covered by opaque drapery while the set is being viewed. It is desirable to install the projecting system in a room
whose walls and floor are of non-reflecting material. The use of recessed ceiling lights and a method of dimming those lights
to an acceptable level is also important. Too much ambient light results in a ‘wash out’ of the projected image. This appears
as less contrast between the darkest and lightest parts of the image. With bigger screens, the ‘wash out’ becomes more important.
As a general rule, darken the room to the point where there is just sufficient light to read or write comfortably. Spot lighting is
desirable for illuminating small areas so that interference with the screen is minimal.
Which screen type?
There are two major categories of screens used for projection equipment. Those used for front projected images and those for
rear projection applications.
Screens are rated by how much light they reflect (or transmit in the case of rear projection systems) given a determined amount
of light projected toward them. The ‘GAIN’ of a screen is the term used. Front and rear screens are both rated in terms of gain.
The gain of screens range from a white matt screen with a gain of 1 (x1) to a brushed aluminized screen with a gain of 10
(x10) or more. The choice between higher and lower gain screens is largely a matter of personal preference and another
consideration called the Viewing angle.
In considering the type of screen to choose, determine where the viewers will be located and go for the highest gain screen
possible.
A high gain screen will provide a brighter picture but reduce the viewing angle.
For more information about screens, contact your local screen supplier.
What image size? How big should the image be?
The BARCO CINE 6 is designed for projecting an image width from 1.4m (4.6') to 7m (23') with an aspect ratio of 4 to 3. It leaves
the BARCO factory, adjusted as a ceiling front projector for a screen width of 2.4m. Changing the image size from the factory
preset requires a re-alignment of the projector.

InstallationGuidelines
3-2 ___________________________________________________________________________ R5975819.05 BARCO CINE 6 21112002
Where to install the projector?
To indicate a correct installation position it is necessary to know the distance :
- projector - ceiling
- projector - screen
To find this correct position for the projector, equipped with HD 215 lenses, follow the instructions as on the screen :
The projector - screen distance (PD), or the screen width (SW), can also be determined from the programme given in the screen
by entering the screen width (SW) or prjector distance (PD) through the RCU. The correction value A will be displayed for each
value of PD or SW. Position the projector accordingly for correct results.
To find this correct position for the projector, equipped with HD 215 lenses, formulas are given as belows :
Formulas for Projector to screen distance and correction value A with regard to the screen width for HD 215 lenses.
How to install the projector?
Ceiling mount or table mount?
To install the projector, apply always the BARCO kits which are specially designed for this function.
BARCO ceiling support
Always use the BARCO ceiling support to attach your projector to the ceiling. (BARCO order number : R9827990)
The installation instruction for this support is enclosed in the packet of the set.
Barco projection table
Height adaptable projection table provides a stable stand for your projector, and makes it possible to adapt the projector perfectly to the local
requirements. (BARCO order number R9827740).
Max phosphor width on CRT = 11 cm Max phosphor width on CRT = 4.33 inch
Formulas (metric)
PD[m] = 1.1431 x SW[m] + 0.093
A[cm] = 14.14 x SW[m] - 18.21
PROJECTOR
SIDEVIEW
C
E
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L
I
N
G
C
D
B
S
C
R
E
E
N
P
R
O
J
E
C
T
O
R
S
C
R
E
EN
WI
DTH
Formulas (inch)
PD = 1.1431 x SW + 3.661
A = 0.1414 x SW - 7.169
Abbreviations used on drawing and diagrams on next pages
A=Correction Value, extra value to be added to B to obtain
the correct installation position. (In some cases the A
value can be negative.)
B=Distance between ceiling and top of the screen.
CD =Total distance between projector and ceiling.
CD =A + B (When the result is negative, enlarge the dis-
tance between ceiling and top of the screen, mount
screen lower, until CD becomes zero or positive)
SW =Screen Width.
PD =Perpendicular Distance between screen and projector.

InstallationGuidelines
R5975819.05 BARCO CINE 6 21112002 ____________________________________________________________________________ 3-3
Mounting the Ceiling Mount
Make the position on the ceiling. Insert 2 screws with wesher M8 and tighten the screw lightly on both side of U plate. Fix
the U plate into the ceiling.
Fix the right and left L plate on the bottom of the projector, using two M4 screws each. Shown in Fig.
Lift the projector and hook on the 2 screws M8 of the U plate mounted on the ceiling.
Fix four M5 screws and nuts to L plate and U plate. Tighten the screws lightly.
Align / adjust the picture on the screen and then tighten all (M5 & M8) screws.
Screw M8
Screw M5
Nut M5
Screw M4
Washer M8
Left L plate
U plate
Right L plate

Installation Set Up
R5975819.05 BARCO CINE 6 21112002 ____________________________________________________________________________ 4-1
INSTALLATION SET UP
Access to Controls
Opening procedure
During the projector set up and installation it is necessary to remove the side and top covers.
First remove the top cover, covering the lenses :
•Turn both lock screws counter clockwise until they are raised by the springs.
•Lift up the cover and remove.
To remove the second top cover, covering the electronics, first the side covers have to be removed.
Removing the side covers :
•Turn out the two black screws on the bottom of the side covers.
•Tilt the side cover and lift it up.
•Repeat the same for the other side cover.
Removing the second top cover :
•Loosen the four M4 screws.
•Slide the cover a few to the back and lift up.
4

Installation Set Up
4-2 ____________________________________________________________________________R5975819.05 BARCO CINE 6 21112002
Scan adaptation
The scanning can be switched by turning the Horizontal and Vertical scan connectors.
To change the scanning, it is necessary to open the projector top cover (see "Access to control").
To gain access to the connectors, the top frame has to be turned 90° to the back until it grips into its locks.
Therefore, the following the next procedure :
•Remove the four screws, two on each side, that are fixing the heatsinks to the frame (image 1).
•Remove three screws that are fixing the frame to the metal chassis.
•Pivot the frame 90° to the back. It is possible that you have to pull strongly on the frame to open it.
WARNING :
TURN OFF PROJECTOR AND UNPLUG THE POWER CORD BEFORE CHANGING THE SCAN DIRECTION.
Scan Inversion
A : Horizontal scan inversion
Three connectors are used, one for each horizontal deflection coil. When changing the horizontal scan, ensure that all three
connectors are set in the same position. See position of the connectors for the corresponding projector configuration.
B : Vertical scan inversion
Three connectors are used, one for each vertical deflection coil. When changing the vertical scan, ensure that all three connectors
are set in the same position. See position of the connectors for the corresponding projector configuration.
r
/
C
e
i
l
i
n
g
Front / TableFront
/
Ceiling Rear
/
T
a
b
l
e
R
e
a
Horizontal scan inversion
Vertical scan inversion
B R
B R
B R
B R
B R
B R
R B
R B
R B
YG
YG
YG
YG
YG
YG
R B
R B
R B
GY
GY
GY
GY
GY
GY
Color of the wires is as follows :
R = Red, B = Blue, Y = Yellow, G = Green
Remarks : As per the factory setting, this photo is in Front / Ceilling position.

Installation Set Up
R5975819.05 BARCO CINE 6 21112002 ____________________________________________________________________________ 4-3
After scan inversion, close the chassis, re-install the second top cover, the side covers and the lens top cover.
To install the side covers :
•Hook the side cover on the both notches and
•Secure on with the three black screws on the bottom side.
•Reconnect the power cord to the wall outlet.
Note : Switching over from floor to ceiling or vice versa requires a complete readjustment of picture geometry
and convergence.
Check of the correct connector position
Note : this check procedure can only be done after power (mains) connection.
So, first continue with the projector set up and the connections and then return to this checking procedure.
Configuration when leaving the factory : ceiling / front configuration.
The three convergence yoke connectors are mounted with the coloured dots on them facing the convergence heatsinks.
For table / front mount
The three connectors must be reversed so that the heatsinks faces the plane surface.
Heatsink

Installation Set Up
4-4 ____________________________________________________________________________R5975819.05 BARCO CINE 6 21112002
Follow next procedure to check the configuration :
- switch on the projector.
- the projector starts up on the last selected source.
- press the ADJUST key.
- highlight 'SERVICE' with the control disc and press ENTER. The 'SERVICE MODE' will be displayed
- select with the control disc 'PROJECTOR SET UP' and press ENTER. The 'PROJECTOR SET UP' will be displayed.
- Select with the control disc 'IDENTIFICATION'and press ENTER.
The projector displays the Identification screen
This screen gives information about the projector configuration in the subject 'config.'.
MAIN MENU
Image Control
Function Keys
Service Menus
Select with or
then <ENTER>
<EXIT> to return.
ADJUSTMENT MODE
Select a path from below :
GUIDED
RANDOM ACCESS
INSTALLATION
SERVICE
Source 1
Select with or
then <ENTER>
<EXIT> to return.
SERVICE MODE
PROJECTOR SET-UP
MEMORY MANAGEMENT
COMMON SETTINGS
I2C DIAGNOSTICS
Select with or
then <ENTER>
<EXIT> to return.
PROJECTOR SET-UP
IDENTIFICATION
TOTAL RUN TIME
CHANGE PASSWORD
CHANGE LANGUAGE
CHANGE PROJECTOR ADDRESS
CHANGE BAUDRATE
POWER UP MODE : operating
COMMON ADDRESS : 0
BARCO LOGO
Select with or
then <ENTER>
<EXIT> to return. CINE 6
Proj. address :001
Soft. Version :6.00
Config. :Ceiling
Front
Baudrate PC :9600
Text :ON
Serial No. :103589552

ProjectorSet Up
R5975819.05 BARCO CINE 6 21112002 ____________________________________________________________________________ 5-1
PROJECTOR SET UP
Projector Set Up
The software takes care of the set up of the projector.
•Projector address
•Power up
•Baud rate (9600)
•Password (strap is provided to disable)
Password mode
With strap J5 on the controller unit, the important projector adjustments can be protected with a password. When the password
feature is enabled (strap mounted), the customer has to enter a password before he can enter the specific adjustment.
When the password menus are disabled (strap is open), all adjustments are free. This position of the strap is useful for
qualified service technicians because they do not need a password during service.
Position of the strap (to gain access to the strap, see 'Access to Controls') :
5

ProjectorSet Up
5-2 ___________________________________________________________________________ R5975819.05 BARCO CINE 6 21112002
Setting the projector address
The projector's address may be set to any value between 0 and 255. When the address is set, the projector can be controlled
now by
RCU for addresses between 0 and 9.
Note : A projector will respond to a RCU set to an address of 0 regardless of what address is set in the projector
itself.
Address setting is a software setup of your projector which must be done during installation.
Note : With the address button on the RCU, the projector will display its own address on the screen. Once the
address button is pressed, to continue using your RCU, it is necessary to enter an address with the numeric
keys, even when the address remains the same.
Power up mode :
The projector can start up in two different modes. The start up mode is determined by the software.
1. Operational mode :
When the power switch on the back of the projector is pressed, the projector displays the last selected source if available,
otherwise it remains on that source number until the source becomes available.
2. Stand by mode :
When the power switch on the back of the projector is pressed, the projector goes into stand-by. The stand-by key on the RCU
or the local keypad is used to turn the projector ON and OFF.
Baud rate for communication with a computer
Computer communication is only available when the optional RS232 communication port is installed.
The communication speed between projector and computer, e.g. PC or MAC, is fixed at 9600 baud rate.