Manuals / Toshiba / Computer Equipment / Projector

Toshiba TLP381, TLP380 Correcting illuminated defects, With the document camera operating, fully

Models: TLP381 TLP380

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Correcting illuminated defects

CONTENTS

61

Control panel (Main unit side)

 

 

 

 

 

 

 

ON / STANDBY

 

 

 

 

 

 

 

 

 

 

P

 

T

EMP

 

 

 

 

 

 

 

ON

LAM

 

 

F

 

 

 

 

 

 

 

 

 

 

AN

 

 

 

 

 

TE

 

 

 

 

EXI

 

 

 

 

 

EN

R

 

 

 

 

T

 

 

 

 

 

U

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

UT

 

 

 

 

 

N

 

 

 

 

 

O

S

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

M

 

 

 

 

 

 

ET

 

 

 

 

 

 

 

 

 

 

 

K

 

 

 

 

T

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

S

 

 

 

U

 

 

 

 

 

 

 

Y

 

N

P

 

 

 

 

 

 

 

T

I

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

VOL / ADJ

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

2

Press both sides

For the CCD image sensor used in the camera unit, in rare cases some of the pixels may be disturbed due to the influence of cosmic rays, etc. This disturbance may cause white spots to appear on the picture.

If white spots appear on the document camera image, use the procedure described below to correct the problem.

1

With the document camera operating, fully

cover the camera lens with a piece of black

paper or cloth.

Camera lens

imaging

Camera control panel

W.BALANCE OVERLAY

ARM LIGHT

LOCK

 

CAMERA

CAMERA

GAIN

 

2 ARM LIGHT

EXIT

Note

Press ARM LIGHT on the camera control panel and EXIT on the projector’s control panel simultaneously.

You can not use the remote control buttons.

cameraDocument

Do not press ARM LIGHT and EXIT buttons simultaneously if the camera lens is not covered. Doing so will not only erase the white spot correction data already set but also result in parts ot the image that are properly displayed being corrected. Also be careful if the camera input mode is not selected.

Page 60 Page 62
Page 61
Image 61
Toshiba TLP381 Correcting illuminated defects, With the document camera operating, fully, Paper or cloth, Camera lens
Page 60 Page 62

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.