Toshiba 251, 250, TLP551, TLP550 owner manual Power Sources, Source of Light, Ventilation

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IMPORTANT SAFETY INSTRUCTIONS

CONTENTS

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CAUTION: PLEASE READ AND OBSERVE ALL WARNINGS AND INSTRUCTIONS GIVEN IN THIS OWNER’S MANUAL AND THOSE MARKED ON THE UNIT. RETAIN THIS BOOKLET FOR FUTURE REFERENCE.

This set has been designed and manufactured to assure personal safety. Improper use can result in electric shock or fire hazard. The safeguards incorporated in this unit will protect you if you observe the following procedures for installation, use and servicing. This unit is fully transistorized and does not contain any parts that can be repaired by the user.

DO NOT REMOVE THE CABINET COVER, OR YOU MAY BE EXPOSED TO DANGEROUS VOLTAGE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ONLY.

1.Read Owner’s Manual

After unpacking this product, read the owner’s manual carefully, and follow all the operating and other instructions.

2.Power Sources

This product should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply to your home, consult your product dealer or local power company.

For products intended to operate from battery power, or other sources, refer to the operating instructions.

3.Source of Light

Do not look into the lens while the lamp is on. The strong light from the lamp may cause damage to your eyes or sight.

4.Ventilation

Openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating, and 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 not be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer’s instructions have been adhered to.

Before use

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Contents TLP250 TLP550/TLP250Safety Precautions Save Original Packing Materials Avoid Volatile LiquidMoisture Condensation Exemption ClausesSource of Light Power SourcesVentilation Important Safety Instructions Accessories Object and Liquid EntryDo not place the product vertically Stack InhibitedDamage Requiring Service Replacement PartsSafety Check ServicingDo not carry by the camera arm Heat could erase or discolor the letters on a thermal paperDo not move the projector while the arm is still erect Do not look into the arm light while it is litPower supply cord selection BeforeContents Air intake Zooming lever Focusing ring Speaker Lens Lens cover Carrying handle Foot adjusterFoot adjuster release button Names of each part on the main unitNames of each part on the main unit ON/STANDBY buttonBefore Names of each part on the remote control Freeze buttonInstall the batteries Loading batteriesOpen the cover Attach the coverRemote control operation Front side Rear sideFloor-mounted projector placement Determine the screen size projected on the screen Side viewTake off the lens cover Connect the power cordInsert the other end into a wall outlet Lens shift function Turn the foot adjuster to make fine adjustment to the height Turn clockwise to lift up Turn counterclockwise to lowerCeiling-mounted projector placement Connecting a computer Connecting video equipment Video connectorConnecting video equipment Projector operation control by a computer Remote control Lamp indicator blinks while the lamp is warming upProjection on the screen Press ON/STANDBYTurn on the connected equipment and put it in playback mode Press Enter to confirmControl panel Main unit side LanguageSelect the input source by pressing Input repeatedly Press Input and hold for two secondsPress Enter Input source selection menu appearsAdjust the picture size by turning Focusing ringZooming lever Focus on the picture by turningPress the + button to increase volume Press VOL/ADJ +/- to adjust volumePress the button to decrease volume Press ON/STANDBY after using the projector Turning the power offPress ON/STANDBY again Adjusting the picture automatically Input full screen video signals from the inputSource computer and project the image Press Auto SETAdjust the distortion with the selection buttons To finish the adjustment, press Exit repeatedlyCorrecting the keystone distortion Press KeystoneIcon appears in the mute mode Cutting off the picture and sound temporarilyPress Mute Sound and picture are cut off temporarilyIcon appears in the freeze mode Freezing the picturePress Freeze Picture freezesIcon appears in the resize mode Enlarging the picture sizePress Resize To reduce the enlargement ratio, press the Resize buttonPress PIP Displaying PIP Sub-picturesSub-picture is displayed Displaying Information Press CallOperating the presentation mode Start a presentation on the computerAdjust the projector before presentation if necessary Select the computer input with InputPress P.MODE and hold for two seconds Change a slide with the selection buttonsOperating the menu screen Press MenuAdjust with VOL/ADJ +/- or selection buttons StartGuide Menu adjustments and settings Adjust the image flickerFull Menu adjustments and settings Picture PAL60Full Menu adjustments Position Full Menu adjustments Color Full Menu adjustments and settings Audio Full Menu adjustments and settings Display Menu background is normal ResetFull Menu settings Default setting Full Menu settings Reset PIP menu setting Part names of the document imaging camera model ImagingDocument cameraPreparation of the document imaging camera Press ARM Light Set a document to be projectedCamera control panel Light turns onPress Camera to select the camera input mode Picture projection with the document imaging cameraWhen finished, turn off the light and close it Press Camera Gain +/- to improve view of aCamera subject which is too dark or vivid Put back the armProject a white paper and enlarge it to fill Locking the white balanceScreen Correcting illuminated defects With the document camera operating, fullyCover the camera lens with a piece of black Paper or clothIndicators Trouble indicationsControl panel Main unit sideAir filter cleaning Unplug the power cord Take off the front coverClean the air filter Detach the air filterMount the front cover Mount the air filter and the filter frameLens side to fix it Lens and main unit cleaning Cleaning the lensCleaning the main unit Replacing the intake, exhaust fans and air filterLamp replacement Unplug the power cord Wait until the lamp gets cool enoughTake off the lamp cover on the bottom panel Pull out the lampReset the lamp timer Load a new lampAttach the lamp cover Slide the cover into place and tighten the two screwsBefore calling service personal Symptom Cause CorrectionBefore calling service personal Pin assignment of Computer connector ComputerApplicable signal Applicable computer signalApplicable signal Compatible Video and S-Video signalControlling the projector by using RS-232C Signal assignment of RS-232C Interface formatControlling the projector by using RS-232C VLU Computer Resize Specifications Main unitReplacement lamp Sold separately

251, TLP550, TLP551, 250 specifications

Toshiba has long been recognized for its innovation in the field of semiconductor technology, particularly in the area of optoelectronic devices. Among its extensive portfolio, the Toshiba TLP series stands out, especially models such as the TLP250, TLP551, TLP550, and TLP251. These optoisolators are designed to provide exceptional performance in various applications, including industrial controls, communication equipment, and power supplies.

The TLP250 is a high-speed transistor optoisolator that boasts a maximum data transmission rate of up to 10 Mbps. It is designed for applications where precise isolation between input and output is critical. The device employs a GaAlAs light-emitting diode, ensuring a fast response time and efficient operation. Its package includes a phototransistor, which enables it to switch high voltages and currents, making it ideal for driving loads in various circuits.

In contrast, the TLP551 offers a higher level of phototransistor isolation with a breakdown voltage of up to 5 kV. This model is well-suited for environments where electrical noise is a concern, as it provides reliable and stable isolation. With a maximum forward current of 50 mA, the TLP551 ensures that even in complex industrial settings, signal integrity can be maintained effectively.

The TLP550 is another noteworthy optoisolator, characterized by its compact size and robust performance. It also integrates a phototransistor output, which allows for a high degree of flexibility in design. This model is engineered to deliver a maximum isolation voltage of 3.75 kV, making it suitable for various high-voltage applications.

Finally, the TLP251 offers a unique combination of features tailored for demanding applications. With its high-speed response and excellent voltage gain, it is particularly advantageous in communication systems. Its ability to provide isolation while transferring data makes it an essential component for many digital interfaces.

In summary, the Toshiba TLP series, including models like the TLP250, TLP551, TLP550, and TLP251, exemplify the brand's commitment to quality and innovation in optoelectronic devices. These models are engineered to meet the rigorous demands of modern applications, offering features such as high-speed operation, significant isolation voltage ratings, and versatile output options. For engineers and designers, choosing the right Toshiba optoisolator can significantly enhance the reliability and efficiency of their electronic systems.
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