Lamp replacement

CONTENTS

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The lamp will eventually begin to project dark or dull pictures and finally will not light up. (Lamp’s life depends on operating conditions.) In such a case, replace the lamp with new one.

CAUTION

1 Unplug the power cord.

2 Wait until the lamp gets cool enough.

If you use the projector mounted on the ceiling, ask the dealer to carry out the maintenance such as cleaning or replacement of the lamp.

When replacing, always use lamp “TLPL78” (sold separately). For details, refer to the lamp instruction.

If you have been using the projector, the lamp will be very hot, and may cause burn injuries. Wait for the lamp to cool (for longer than 1 hour) before replacing it.

If the lamp should break, please handle with care to avoid injury due to broken pieces and contact your dealer for repair service.

3

1

2

Take off the lamp cover on the bottom panel.

Loosen the two screws, and pull off the lamp cover.

Lamp cover

4

1

 

Pull out the lamp.

2

Loosen the two fixing screws, and lift up the

 

handle to pull out the lamp.

Continued

Maintenance

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Image 66
Toshiba TLP380 Lamp replacement, Unplug the power cord Wait until the lamp gets cool enough, Pull out the lamp, Lamp cover

TLP381, TLP380 specifications

The Toshiba TLP380 and TLP381 are advanced optoisolators designed for various applications requiring reliable isolation and switching control. These devices are particularly valuable in communication, industrial, and consumer electronics, where signal integrity and noise immunity are crucial.

The TLP380 is a phototransistor optoisolator, featuring a gallium arsenide infrared LED and a phototransistor. With a minimum isolation voltage of 5,000 VRMS, it provides high voltage isolation between input and output, making it an excellent choice for protecting sensitive components from high voltages and surges. The TLP380 offers a high-speed switching capability, with a rise time of around 4 μs, enabling it to transmit signals efficiently in digital circuits.

On the other hand, the TLP381 is also a phototransistor optoisolator but specifically optimized for lower input current, making it more power-efficient. It offers similar isolation voltage ratings and switching characteristics to the TLP380, but with a lower input current threshold, which can be particularly advantageous in battery-powered applications. The lower current requirement helps extend battery life and minimizes power consumption in portable devices.

Both TLP380 and TLP381 devices feature a wide temperature range, making them suitable for various environmental conditions. Their operating temperature ranges from -40°C to +100°C, ensuring reliable performance under extreme conditions. Additionally, with their compact DIP packages, they are easy to integrate into crowded PCB layouts, making them a preferred choice for designers targeting space-constrained applications.

In terms of characteristics, both models provide low output voltage saturation and high-speed operation, which are critical in achieving fast response times in control circuits. The combination of robust isolation, efficient power consumption, and temperature stability makes the TLP380 and TLP381 versatile solutions for isolating signals in a myriad of electronic systems.

In summary, the Toshiba TLP380 and TLP381 optoisolators are engineered for high-performance signal isolation, offering superior technologies and characteristics that cater to a range of applications. Their reliability, efficiency, and compact design make them a compelling choice for engineers and designers looking to enhance their electronic systems.