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Conventional television systems use a scanning method that displays two low quality interlaced 'fields', which when combined form a single higher quality 'frame'. Each frame is displayed 25 times every second, but the fields/frames are shown so rapidly that the eye perceives a high quality moving image, and not a series of low resolution still images. A projector or DVD player that uses progressive scan reconstructs the image using complete frames, and the result is a more natural, stable picture, with fewer effects like flicker and picture shimmer that interlacing can introduce.

The amount of detail that is visible in an image displayed on your computer screen is expressed in terms of the number of distinct horizontal and vertical lines that can be resolved. The maximum number of lines that can be seen when a standard test pattern is displayed is called the resolution. Computers have set resolutions, commonly called VGA, SVGA, XGA, SXGA and UXGA.

A Liquid Crystal Display basically comprises two transparent sheets of a polarising material, with a liquid containg rod-shaped crystals sandwiched between them. The LCD panels themselves do not emit light, but are backlit with red, green and blue light. An electronic signal controls the light transmission properties of the LCD panels by influencing each crystal in the display to block, partially block or transmit the light incident on it. An image is formed by combing the individual outputs from the three separate panels.

LCD Projector & Lamp Information

The following information will help you to keep your projector working efficiently and help to achieve the maximum working life for the lamp. It may also offer some useful information in understanding how and why some lamp and optically related situations occur.

Power on/off

The projector should shut down correctly as advised in the user manual using the controls on the projector or the remote control. The mains supply must not be removed until the fans have stopped and the projector has returned to its standby mode. Failure to follow this procedure will almost certainly result in premature lamp failure.

Some later models contain a back up power supply that will apply cooling to protect the lamp in the event of a mains failure. Some users of projectors with this function use the feature as a means of power off and go. It should be noted however that the lamp is still vulnerable to vibration whilst hot.

Generally, a projector will operate more efficiently if it is powered on, only during the time that it is expected to be in use. Powering on and off every 30 minutes or so can reduce the expected lamp life. It should also be noted that a period of approx 10 minutes should elapse from powering down before the projector is powered on again.

Filters

Cleaning and or replacement of the air filters are crucial to reliable operation of the projector. It is recommended that the filters are checked & cleaned after 100 hours of operation or at least at a minimum of a 1-month interval. Depending on the environment, checking & cleaning may need to be performed more frequently. It is very important that this action is carried out as blocked or partially blocked filters will dramatically reduce cooling air to the lamp and the optical engine. The effect of this will generally result in reduced working life or premature failure of these items.

Please refer to the user manual for further information on carrying out this task.

General Lamp Failure. 

Although it is anticipated that a projector lamp will continue to operate satisfactorily throughout its working life, occasionally, failure may occur before that anticipated time has elapsed.

The lamp in a projector is categorised as a consumable item, and even with proper use and maintenance, a small proportion of lamps may fail before their expected life span has elapsed. Neither the life expectancy nor the performance of a lamp can be guaranteed, and the duration of its useful operation will depend to some extent on the conditions under which it operates.

 

Usage Lamp Failure.

As a projector lamp ages, the ends of the two electrodes within the strike chamber cavity gradually erode and the gap between them slowly increases. Erosion of these electrodes will occur every time the lamp is started and eventually, a point is reached at which the Power Unit can no longer supply the amount of current demanded by the lamp in order to strike and maintain the arc between the electrode tips. It is at this stage that performance deteriorates and may manifest it’s effect in different ways such as, the lamp brightness being significantly reduced, the lamp starting to flicker at switch on, the lamp going out soon after strike up or even failing to come on at all.

When this occurs, the lamp has reached the end of its useful working life and needs replacing.

The lamp replace indicator may not have illuminated at this time, however, resetting of the lamp timer in the user menu is still a required action if the lamp is replaced.

Projector lamps are sensitive to vibration, an example of the effect of this is sometimes seen when projectors are inverted and suspended on ceiling mount poles. The lamp fails to operate in the inverted mode but works fine when operated in tabletop mode. What happens is that vibrations are transmitted down the pole and affect the electrodes whilst they are hot. This generally causes one or both of the electrodes to sag in their mounting points thus changing their position relative to each other with the result that the lamp fails to strike. When the projector is operated in tabletop mode the electrodes return to their natural position and the lamp will strike.

 

Temperature Related Lamp Failure.

It is very important to shut down the projector correctly after use.

When the “power off” command is given, the lamp extinguishes, however, the fans generally continue to run until the lamp has cooled sufficiently and the projector has returned to its standby condition. If the fans are stopped before the lamp has cooled, then the lamp glass temperature could rise to point where failure of the lamp is possible.

 

The following describes why temperature related failure occurs. 

Two factors that will always result in high lamp glass temperatures are the non-adherence to correct shut down procedures, and blocked or partially blocked air filters. It is essential that the projector be shut down properly after use in order to allow the cooling fans to reduce the lamp temperature sufficiently. The hottest part of a working lamp is the strike stem containing two electrodes. If the airflow over the lamp is in any way restricted, temperatures around the strike chamber will rise sufficiently to soften the glass. The usual consequence of this is that the pressure in the strike chamber, which can be as high as 200 atmospheres, pushes outwards at its weakest point, producing a bulge or swelling in the stem. The stem itself is often pulled off its axis, effectively moving the strike area away from the focal point of the reflector. This manifests as a reduced level of brightness to the displayed image, the lamp starting to flicker at switch on, the lamp going out soon after strike up or even failing to come on at all.

Elevated temperatures can also generate micro-cracks in the stem thereby allowing the ingress of air into what should be a vacuum. The micro-cracks grow rapidly, and after a very short time, the integrity of the structure is compromised and the stem shatters. Any mains voltage interruption or power cut, however momentary, would generally produce similar results to those outlined above unless a back up power supply was incorporated in the projector to cover this eventuality.

 

Lamp Life. 

Manufacturers of lamps generally specify a lamp life, as a value which is usually determined by what is termed the Median Life, rather than the Average Life. Median means middle and it is not what most people think of which is average.

Median Life is the value that is arrived at when 50% of given sample are still working. So, if we took a sample of say 100 lamps, the median lamp life would be the number of hours that had elapsed when the 50th lamp failed.

So, if a specification for lamp life was 2000 hours and you had a sample of 100 lamps which were all turned on at the same time, after 2000 hours at least 50 of them should still be operating.

The other 50 lamps may have failed at any number of hours between 1 & 2000 hours but as long as 50% of the sample is still operating after 2000 hours then the median life remains valid.

Average life is determined by measuring the number of hours that each lamp achieves until failure and then dividing the total number of hours by the sample size.

Depending on the sample size the average could be more or less than the median however it has to be said that there is no relationship between the two values.

Unfortunately you cannot say from the lamp life specification how many hours any one lamp will last. It must also be understood that the brightness of the lamp will reduce with age and use.

Please click here for a list of In Warranty Service Locations

 

SANYO Sales and Marketing Europe GmbH (SSME) is a member of a UK Government approved WEEE Producer compliance scheme. As a member of an approved Producer compliance scheme SANYO pays for the recycling of WEEE collected from Designated Collection Facilities. A list of WEEE Designated Collection Facilities is given on the UK Environment Agency web site. Please return all your Waste Electrical and Electronic Equipment to one of the approved collection facilities. https://www.valpak.co.uk/weee/WEEELAReport.aspx?referer=www.dti.gov.uk

The SANYO Shop is now available and can be accesed on the following link:

http://uk.sanyo.com/Store/Public

Your SANYO dealer, where the product was purchased, could order accessories for you. Alternatively they can be obtained by mail order from our distributor of spares and accessories at the following address:
Partspeed, Prospect House, 1 Halifax Way, Pocklington Industrial Estate, Pocklington, nr York. Y042 1NR
Tel: 0870 9909474 or email: Sales@Charleshyde.co.uk

The Clock Adjust feature will function only when the video recorder is in 'standby' mode, i.e. the power is switched off. You should ensure that the VCR is in standby mode overnight when summertime begins or ends.

You should check that the Clock Adjust feature is switched on via the menu. The dot on the screen should be against 'Auto' rather than 'Off' or 'Manual'.

If Clock Adjust does not appear on the menu at all this suggests the Auto Tuning was not used when first installing the VCR. During the Auto Tuning process the Clock Adjust function is activated and the feature will then appear on the menu.

As a general rule you are advised not to place metal objects in a microwave oven when microwave cooking. However there are exceptions. If a utensil has been supplied by the manufacture specifically for this purpose then you can be sure it is suitable for use in the way recommended in the instruction book. Similarly small quantities of foil can be used, provided the instructions are followed.

It is important however that there is no contact between two metal items, such as grill rack and metal drip tray, or foil and oven wall, or arcing may occur.

When a projector is projecting an image at a screen that is directly in front of and at right angles to the axis of the lens, the sides and the top and bottom of the image will be straight and parallel. If the projector is then tilted upwards, the image will change shape, with the top of the picture becoming wider than the bottom. If the projector is tilted downwards, the reverse will happen and the bottom of the picture will become wider than the top. This is called 'keystone' error or distortion. If your projector is equipped with keystone correction, it can electronically correct this distortion by digitally resizing the image until it becomes rectangular again, with parallel sides. Although this feature can be very useful at times, its use should be avoided when possible, because a certain amount of picture degradation always results due to the rescaling involved in the process.

Optical lens shift physically moves the projector's lens assembly vertically or horizontally in relation to the LCD prism, without introducing any keystone distortion. Projectors which incorporate this feature are more versatile allowing for a more flexible set up, because the positioning of the projector relative to the screen is less critical.

An S-Video (separate video) signal in one in which the luminance (brightness) and colour (chrominance) information relating to a particular image are separated and carried as individual signals. Wherever possible, s-video signals should be used in preference to composite signals, which because all the individual parts are mixed together and can interact, often introduce noise and effects such as colour 'bleeding'.

A composite signal is one that contains all the information relating to a particular image. The luminance (brightness) information, colour information, blanking and synchronizing signals are all mixed together to form a combined or composite signal.

The panels in an LCD projector have a fixed resolution and produce the best results when fed with a signal that has the same number of vertical and horizontal lines. i.e. a projector with LCD panels having 1280 x 1024 pixels is said to have an SXGA native resolution, and will produce best results when fed with a signal having 1280 lines x 1024 lines. The image quality benefits in matching the resolution of the projector to the source computer are considerable, as the projected image will then match the computer image pixel for pixel, giving the best possible reproduction. If the source has more lines than the projector then some are lost, losing picture information, and if the source has too few lines the picture does not make full use of the projector's resolution. Sanyo projectors, however, utilize advanced technology that automatically detects and resizes pictures seamlessly regardless of their native resolution.

 

VGA is an acronym for Video Graphics Array, and all these terms are a measure of the resolution of the signal being generated by a computer. A VGA signal has a resolution of 640 vertical lines x 480 horizontal lines; SVGA is 800 vertical lines x 600 horizontal lines; XGA is 1024 lines x 768 lines; SXGA is 1280 lines x 1024 lines and UXGA is 1600 lines x 1200 lines. A resolution of 1024 x 768 (XGA) tends to be the most common standard output in laptop computers and, therefore, the most popular resolution for projectors as well.

Contrast is the difference betwen the brightest and the darkest areas of an image, and helps to define the depth of the information comprising the image. High contrast is useful when showing high quality video in limited ambient light, but is not as necessary if displaying simple computer images such as spreadsheets. The contrast ratio is a measure of the brightness limits of an image, brightest to darkest, and a good projector will have a contrast ratio of something like 300:1 or better.

In general, the brighter the image a projector can produce, the more impact a presentation will have on its audience. As a rough guide, 500 ANSI lumens per square metre of screen under normal office lighting, will give a bright and well-contrasted image. So something like 1000 ANSI lumens will be quite satisfactory for a small group of people in an office. Higher light output allows for presentations of larger images to bigger audiences, but ambient light and the quality of the screen as well as its size can dramatically affect image brightness. A working demonstration by your dealer is the best way to evaluate the product.

The ANSI lumen rating is a good guide to the brightness that can be expected from a projector. However, measurements published by manufacturers are usually based on their own evaluations and are not necessarily the results of independent tests. In practice, this means that ANSI lumen measurements from different manufacturers vary considerably, and it is not uncommon to find that a lower rated unit from one manufacturer will out perform a higher specified projector from another . It is always preferable when buying a projector to ask for a demonstration from a dealer and, if possible, to compare the different models being considered.

An ANSI lumen is a measure of brightness given out by projection equipment, as standardised by the American National Standard Institute. On a 1.5 metre wide screen, a brightness of 1000 ANSI lumens should project a good image.

DVI means Digital Video Interface, and is, as its name suggests, designed for a digital rather than an analogue input. It can be also used on some Sanyo projectors for optional devices such as wireless communication and is a true plug and play input. This type of connection is becoming more common within the range of display products.

A component signal is even more preferable to a composite signal than an S-Video signal. This is because the colour signal has been further separated into red and blue individual or component parts, with a separate luminance (brightness) signal. (The green signal is not transmitted, but reconstituted electronically by mixing the red and blue signal components).Using this method to relay signal information improves picture quality because crosstalk or interference between the video signals is reduced.

You can if the projector you are using has a monitor out port. But if not, you could connect your equipment using a VGA splitter, which has two outputs.

Do not allow the projector to become overheated. Most causes of lamp failure can be attributed to excessive heat. Always follow the instructions in the user manual for powering down the projector after use, to ensure that an adequate cool-down period has been allowed to reduce lamp and projector temperatures sufficiently. Always use your projector in an environment that is clean and dust-free, if possible, and make sure that the air filters are cleaned regularly. If your projector has an 'economy mode' use it whenever full brightness is not necessary.

Although it is hoped that a projector lamp will continue to operate satisfactorily throughout its anticipated working life, it has to be accepted that failure may occur before that anticipated time has elapsed. General Failure: The lamp in a projector is categorised as a consumable item, and even with proper use and maintenance a small proportion of lamps may fail well before their expected life span has elapsed. Neither the life expectancy nor the performance of a lamp can be guaranteed, and the duration of its useful operation will depend to a large extent on the conditions under which it operates. Usage Failure: As a projector lamp ages, the ends of the two electrodes within the strike chamber cavity gradually erode and the gap between them slowly increases. Erosion of these electrodes will occur every time the lamp is started and eventually, a point is reached at which the Ballast Power Unit can no longer supply the amount of current demanded by the lamp in order to strike and maintain the arc between the electrode tips. It is at this stage that performance deteriorates, with the light output falling off , the lamp starting to flicker at switch on or going out soon after strike up, or even failing to come on at all. Temperature Failure: Two factors that always result in high lamp glass temperatures are the non-adherence to correct power down procedures, and blocked or partially blocked air filters. It is essential that the projector be powered down properly after use in order to allow the cooling fans to reduce the lamp temperature sufficiently. The hottest part of a working lamp is the strike stem containing the two electrodes, and if the airflow over the lamp is in any way restricted by blocked filters, temperatures around the strike chamber will rise sufficiently to soften the glass. The usual consequence of this is that the pressurised strike chamber balloons outwards at its weakest point, producing a bulge or swelling in the stem. The stem itself is pulled off axis as a result, effectively moving the strike area away from the focal point of the reflector. Elevated temperatures can also generate microcracks in the stem, allowing the ingress of air that is then burned by the heat from the lamp arc, usually leaving black oxide deposits on the internal surfaces of the chamber walls as well as on the strike electrodes. The microcracks grow rapidly, and after a very short time the integrity of the structure is compromised and the stem shatters. Any mains voltage interruption or power cut, however momentary, will produce similar results to those outlined above.

Just like any light bulb used in other applications, projector lamps have an expected operating life span. The lamp life is expressed in hours and typically numbers 1000 to 2000 depending on the model of projector. The success or failure rate of the lamps is based on a complicated statistical anaysis of much research and test data, and the end result is that a majority - but not all - of the lamps will meet the life expectancy specified. Some will fail much sooner than others, but this is part of the acceptable operating range of the rating.

For most business presentations, either technology would be satisfactory. A projector using LCD technology, however, does have advantages under certain conditions. LCD images generally tend to be more vibrant with richer colours, and full-motion video is better from an LCD projector than a DLP projector of similar type. Detailed spreadsheet presentations also appear slightly sharper through an LCD projector. Not that DLP technology produces fuzzy or blurred images - it doesn't, but when compared side by side with the same input signal, the LCD is typically a bit sharper and perhaps preferable. Another advantage of LCD is that it is more light efficient, producing a higher ANSI lumen output than a comparable DLP model with the same wattage lamp.

DLP (Digital Light Processing) projectors use a high-speed, rotating colour wheel to create an image, reflecting light from thousands of micromirrors (one mirror per pixel). Portable DLP projectors can only display one colour at any one time, so moving images can suffer from a coloured patterning effect on the screen. In most single-chip DLP projectors, a clear (white) panel is included in the rotating colour wheel along with the red, green and blue in order to give increased brightness. This, however, can lower the colour saturation and the DLP image appears less rich and vibrant.

As projectors become smaller and brighter, it is tempting to purchase something like a 2000 ANSI lumen, sub 3kg model believing this to be adequate for the purpose. Whilst this may be true, the small ultraportable projectors were never designed to dissipate the greater heat build up associated with running for such extended periods. You would do better to consider a larger, portable-style unit, which with its larger LCD panels and increased cooling capacity would be more able to cope with the operating conditions, so increasing the projector's life and reducing lamp costs and service down time.

One of the first things to consider is what the projector will be used for - will you be using it for video or as a monitor for data presentations? If your priority is for video, Sanyo have a range of specialist Home Theatre units, the 'PLV' models. Particularly with data projectors, you will need to consider things like room size and how many people are expected to be in the audience. These factors will determine such things as sceen size, which, in turn is a factor when choosing the type of lens to use. The sort of images being presented is also important. For data inputs with detailed images such as spreadsheets, then a minimum of XGA resolution would be required. If only power point presentations or video is being used, then a projector with an SVGA resolution would be adequate and less expensive. Lighting conditions must also be considered. Can any natural daylight entering the room be blocked with blinds or curtains, for instance? As a rough guide to requirements, 500 ANSI lumens per square metre of screen surface should give a bright and well-contrasted image.

For information on pricing, availability or part numbers for any SANYO LCD Projector accessory, you should contact your dealer or sales representative.

This could be due to an alignment problem, which in some instances may be corrected electronically. It may also be caused by mechanical mis-alignment of the lcd panels and lenses within the projector's optical engine. In either case, the projector will require examination by an Authorised SANYO Service Agent who will be able to carry out the necessary adjustments or repairs.

The first thing to do is lower the Baud rate and transmission speed for the connection. If this does not solve the communication problem, check that the correct pin-outs are being used.

You can refer to the image size calculator on this website or contact the dealer where the projector was purchased.

This problem can be caused by a faulty lamp assembly, or an over heating problem resulting from a clogged air filter. Please check and clean the air filter(s) on a regular basis, and replace the lamp assembly if necessary. You may purchase a new lamp assembly from the dealer where you purchased the projector. Please consult your owners manual for instructions on how to replace the lamp assembly and how to clean the air filter(s). If the problem is not corrected by doing this, then the projector may need a service. Please contact an Authorised SANYO Service Agent.

Purple or Magenta dots are the result of dust or dirt particles that have settled on the green panel. The solution is to clean the green LCD panel, but this operation should ONLY be carried out by an authorized service technician. Please refer the unit to an Authorised SANYO Service Agent. Regular maintenance of the air filter(s) will reduce the likelihood that this problem will occur.

This problem is typically caused by an Integrator lens assembly out of alignment. The integrator lens performs the task of increasing the brightness and uniformity of the picture. If it is out of alignment, the integrator lens needs adjustment. The unit should be sent to an Authorised SANYO Service Centre for this procedure.

Yes - we can supply a range of ceiling mounting brackets which are suitable for almost all situations. SANYO LCD projectors allow you to invert the projected image so that when the projector is mounted upside-down from the ceiling the image will still appear the correct way up on the screen.

Throw distance is the distance from the centre of the projector lens to the screen. The further away the projector, the larger the image and the more the set amount of light emitting from the projector is dispersed. If you double the projectors distance from the screen, you get an image four times bigger (twice as wide and twice as high) and only 1 quarter the brightness. Remember, the larger the audience, the larger the room, the larger the screen and so the further away and brighter the projector will need to be.

An LCD projector uses 3 screens, usually about 0.5-1.8" diagonal, to project the three primary light colours (red, green and blue). The light source (lamp) is separated into the primary colours using prisms, the resultant light is then passed through the LCD panels which are made up of thousands of individually controllable panels which can either block the light, let is pass through or partially close to allow some of the light through. Each panel corresponds to a pixel on the projection, so each pixel is made up of three panels (one from each screen). After passing through the screens the light is recombined using another prism, then passes through the projection lens to form an image.

If the control panel lights on the projector come on, then the unit has power. More than likely the lamp assembly has failed or is reaching the end of its useful life. Please replace the lamp assembly

There are a couple of things that could be happening. It could be that the LCD just needs to be "synchronized" with your laptop. Or, it could be a power usage issue that is very common in laptops. Be sure that the laptop is setup for the same resolution as the projector's native resolution (VGA-640x480, SVGA-800x600, XGA-1024x768 or SXGA-1280x1024). This may take care of the problem immediately. Windows 3.1 you will need to look in the Windows Setup. Choose Options and select Change Settings. Choose VGA, then restart Windows. Windows '95/'98/ME/2000 and NT you will need to look in the Display control panel and adjust the screen size using the control slider in the settings. In addition to changing these settings, you may need to configure your video card settings (ATI Rage, NeoMagic, Stealth, etc.) as well. If you are unsure of these settings, please contact your laptop manufacturer for assistance. Macintosh you will need to look in the Monitors control panel and click on Options. From the list of Resolution Options, choose the projector's native resolution (VGA-640x480, SVGA-800x600, XGA-1024x768 or SXGA-1280x1024). Using your LCD manual as a guide, set the LCD to the factory settings. Then adjust the various settings to get as clear an image as possible. Because laptop manufacturers are very conscious of saving power for the battery, laptops are designed to "waste" as little power as possible. Often, this means that the signal being sent from the laptop's External Monitor Port (where you connect the LCD to the computer) is not as strong as the signal from your desktop computer's External Monitor Port. This can affect your LCD image. There are several things you can do to override these power issues: Be sure to run your laptop off of AC power (plugged into the wall). When the laptop is run from the battery, it does not send enough power to the External Monitor Port (where you connect the LCD to the laptop). This can cause distortion. Most laptops offer power saving features that can be turned on or off. Consult your laptop computer's manual to find out which features you can turn off and how to turn them off. The more power saving features you can turn off, the stronger the signal will be for the LCD. After going through steps A and B, some laptops still will not have a strong enough signal to the External Monitor Port (where you connect the LCD to the laptop). In this case, you will need to turn the laptop monitor off and view the image from the LCD only.

Be sure that all of the cable are connected properly according to the instructions in the LCD's manual. Turn the entire setup off, then restart in this order: Many laptop computers require the External Monitor Port (where you connect the LCD to the laptop) to be turned on manually. • LCD unit • Laptop computer

SANYO projectors allow you to connect to virtually any mains power source in the world. They can automatically adjust from 100V-240V and 50-60Hz. operation. At most you may need to purchase an adaptor to connect to the available power source.

The projector keeps a count of the number of hours that the projector lamp has been used. Follow this procedure to check the lamp replace counter:1. Press and hold the UP arrow button on the projector for more than 20 seconds. (On some later models, instead of the UP arrow button the POWER button is used, so press and hold this button for more than 20 seconds.) 2. A number indicating the elapsed lamp hours is briefly displayed on screen. The lamp replace counter should be reset if the lamp is replaced in the projector. This can be done through the on-screen menu. Please refer to the owners manual for further information.

No - the lamp is a user-replaceable item. Provided that the lamp replacement instructions in the instruction manual have been followed correctly your warranty will still be valid.

Yes - lamp replacement instructions are included in the projector instruction manual.

Yes - they support PAL/SECAM/NTSC/NTSC-4.43/PAL-M and PAL-N

All SANYO projectors support video and DVD playback. If you're considering a projector for your home theatre set up then think carefully about choosing a machine with 16:9 (cinema) aspect ratio as well as the more usual 4:3.

Yes - although if a computer with non-standard terminals is used, be sure to use the adaptors specified by the computer manufacturer. A MAC adaptor is supplied with many SANYO LCD projectors as standard. Please check individual model specifications or contact us if you require a MAC connector.

Contact Sanyo Europe LTD., on 01923 246363 and ask for Commercial Sales, or click on 'Contact' in the main website menu and under Customer Support ( Commercial Products) click on 'Customer Services' to find an Information Request form. We will be happy to let you know your nearest SANYO Dealer.

Lamp Life.

Manufacturers of lamps generally specify a lamp life, as a value which is usually determined by what is termed the Median Life, rather than the Average Life. Median means middle and it is not what most people think of which is average.

Median Life is the value that is arrived at when 50% of given sample are still working. So, if we took a sample of say 100 lamps, the median lamp life would be the number of hours that had elapsed when the 50th lamp failed.

So, if a specification for lamp life was 2000 hours and you had a sample of 100 lamps which were all turned on at the same time, after 2000 hours at least 50 of them should still be operating.
The other 50 lamps may have failed at any number of hours between 1 & 2000 hours but as long as 50% of the sample is still operating after 2000 hours then the median life remains valid.

Average life is determined by measuring the number of hours that each lamp achieves until failure and then dividing the total number of hours by the sample size.

Depending on the sample size the average could be more or less than the median however it has to be said that there is no relationship between the two values.
Unfortunately you cannot say from the lamp life specification how many hours any one lamp will last. It must also be understood that the brightness of the lamp will reduce with age and use.

Please call Sanyo Europe Ltd. on 01923 246363 and ask for Commercial Sales

All Sanyo projectors now come with a 3yr. 'Return to Base' warranty as standard.

LCD stands for Liquid Crystal Display. It is a type of display found in many different electronic devices such as notebook computer screens, calculators watches and cameras. Although the technology has been around for many years now, much research is still being carried out to improve them and make them more efficient.

To protect copyright, DVD discs and DVD players are made for sale in specific regions of the world (see map). The regional codes are indicated by logos on the discs and SANYO players.

If your CD player has a recharging facility built in, this will be explained in the instruction leaflet. The recharging takes place automatically whenever the CD player is connected by the AC adaptor to the mains supply.

The compact disc player can recharge only those NiCad batteries which are specifically designed for the purpose, the type is given in the leaflet (for example SANYO NBP3OB or NBP5OA). These batteries have a contact point which connects to the charging circuit via a pin which you will see within the battery compartment. Other rechargeable batteries will not charge within the CD player, although if charged up in a separate unit, they can be used to power the CD.