7. Appendix

￿Troubleshooting Check List

Before contacting your dealer or service personnel, check the following list to be sure repairs are needed also by referring to the “Troubleshooting” section in your user’s manual. This checklist below will help us solve your problem more efficiently.

* Print the following pages.

Frequency of occurrence always sometimes (How often?_____________________) other (__________________)

Power

No power (POWER indicator does not light green) See also “Sta- tus Indicator (STATUS)”.

Power cable's plug is fully inserted into the wall outlet.

The power cable has been unplugged and plugged quickly dur- ing projection.

Lamp cover is installed correctly .

Lamp Hour Used (lamp operation hours) was cleared after lamp replacement.

No power even though you press and hold the POWER button for a minimum of 1 second.

Shut down during operation.

Power cable's plug is fully inserted into the wall outlet.

Lamp cover is installed correctly .

Power Management is turned off (only models with the Power Management function).

Off Timer is turned off (only models with the Off Timer func- tion ).

Video and Audio

No image is displayed from your PC or video equipment to the projector.

Still no image even though you connect the projector to the PC first, then start the PC.

Enabling your notebook PC’s signal output to the projector.

A combination of function keys will enable/disable the ex- ternal display. Usually, the combination of the “Fn” key along with one of the 12 function keys turns the external display on or off.

No image (blue background, black background).

Still no image even though you press the AUTO ADJ. button.

Still no image even though you carry out [Reset] in the projector’s menu.

Signal cable's plug is fully inserted into the input connector

A message appears on the screen.

( _____________________________________________ )

The source connected to the projector is active and available.

Still no image even though you adjust the brightness and/or the contrast.

Input source's resolution and frequency are supported by the projector.

Image is too dark.

Remains unchanged even though you adjust the brightness and/or the contrast.

Image is distorted.

Image appears to be trapezoidal (unchanged even though you carry out the [Keystone] adjustment).

Parts of the image are lost.

Still unchanged even though you press the AUTO ADJ. button.

Still unchanged even though you carry out [Reset] in the projector’s menu.

Image is shifted in the vertical or horizontal direction.

Horizontal and vertical positions are correctly adjusted on a computer signal.

Input source's resolution and frequency are supported by the projector.

Some pixels are lost.

Image is flickering.

Still unchanged even though you press the AUTO ADJ. button.

Still unchanged even though you carry out [Reset] in the projector’s menu.

Image shows flickering or color drift on a computer signal.

Image appears blurry or out of focus.

Auto Focus is turned on.

There are no objections between the focus sensor and the screen.

The throw distance is within 1.4 to 5.5 m/55.1” to 216.5” Image is projected onto the screen.

Still unchanged even though you adjusted the focus manually.

No sound.

Audio cable is correctly connected to the audio input of the projector.

Still unchanged even though you adjusted the volume level.

Other

Remote control does not work.

No obstacles between the sensor of the projector and the re- mote control.

Projector is placed near a fluorescent light that can disturb the infrared remote controls.

Batteries are new and are not reversed in installation.

Buttons on the projector cabinet do not work ( only models with the Key Lock function).

Control Panel Lock is not turned on or is disabled in the menu.

Still unchanged even though you press and hold the EXIT but- ton for a minimum of 10 seconds.

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Acoustic Energy LT25, LT30, LT35 manual Troubleshooting Check List, Power, Video and Audio, Other

LT35, LT25, LT30 specifications

Acoustic Energy, a prominent name in the audio industry, has made a significant mark with its LT series of loudspeakers: the LT30, LT25, and LT35. These speakers are designed to deliver exceptional sound quality while catering to the needs of audiophiles and casual listeners alike.

The Acoustic Energy LT30 is a versatile floor-standing loudspeaker that offers remarkable performance across various audio genres. Featuring a 3-way driver configuration, the LT30 is equipped with a 1-inch silk dome tweeter for clear high frequencies, a 4-inch midrange driver for detailed vocal reproduction, and dual 6.5-inch woven composite woofers that provide deep, powerful bass response. One of the standout features of the LT30 is its unique cabinet design, which minimizes resonance and maximizes sound clarity, ensuring an immersive listening experience.

For those looking for a slightly smaller option, the LT25 serves as an excellent choice. This compact yet powerful speaker shares similar design elements to the LT30 but features a 2-way configuration. The LT25 utilizes a 1-inch tweeter and a 5-inch mid-bass driver, making it ideal for smaller rooms or as part of a surround sound setup. Its refined sound stage and balanced audio output make it a perfect fit for both music and movie enthusiasts.

The LT35, on the other hand, is designed for larger spaces and offers advanced audio technologies. This model incorporates Acoustic Energy's proprietary driver technology, which ensures accurate sound reproduction and improved efficiency. The 1-inch tweeter and dual 7-inch woofers work in harmony to deliver an expansive soundstage, making it suitable for high-fidelity audio systems and dedicated listening environments.

All three models feature smart design elements, including an integrated grille for aesthetic purposes and strategically placed ports for enhanced bass response. The LT series also focuses on user-friendly connectivity, with binding posts that accommodate a variety of speaker cables and connectors.

Furthermore, each model is crafted with premium materials to ensure longevity and performance, from durable finishes to high-quality drivers. Acoustic Energy's commitment to acoustic excellence is evident across the LT30, LT25, and LT35, making them a solid choice for anyone seeking superior sound quality and design in their audio setup.

These speakers not only stand out in terms of performance but also resonate with the aesthetic appeal, making them a remarkable investment for audio enthusiasts who appreciate quality sound and stylish design.